{"id":169,"date":"2026-10-26T20:55:32","date_gmt":"2026-10-26T12:55:32","guid":{"rendered":"https:\/\/www.oldhamburger.cn\/?p=169"},"modified":"2026-10-26T20:55:32","modified_gmt":"2026-10-26T12:55:32","slug":"forward-converter-design-guide","status":"publish","type":"post","link":"https:\/\/www.oldhamburger.cn\/index.php\/2026\/10\/26\/forward-converter-design-guide\/","title":{"rendered":"\u6b63\u6fc0\u7535\u6e90\u8be6\u89e3\uff1a\u4ece\u5355\u7ba1\u3001\u53cc\u7ba1\u4e0e\u78c1\u82af\u590d\u4f4d\uff0c\u5230\u53c2\u6570\u8ba1\u7b97\u3001\u7ed5\u5236\u4e0e\u8c03\u8bd5"},"content":{"rendered":"<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-01-cover.png'><img class=\"lazyload lazyload-style-1\" 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V\u76f4\u6d41\u8f93\u5165\u300112 V\/5 A\u8f93\u51fa\u7684\u5355\u7ba1\u6b63\u6fc0\uff0c\u4ee5\u53ca220 V\u4ea4\u6d41\u8f93\u5165\u30015 V\/2 A\u9694\u79bb\u8f93\u51fa\u7684\u53cc\u7ba1\u6b63\u6fc0\u3002\u540e\u4e00\u89c4\u683c\u6cbf\u7528\u4e0a\u4e00\u7bc7\u53cd\u6fc0\u6587\u7ae0\uff0c\u4fbf\u4e8e\u5728\u76f8\u540c\u8f93\u51fa\u76ee\u6807\u4e0b\u6bd4\u8f83\u62d3\u6251\u3002<\/p>\n<p>\u7b97\u4f8b\u4e2d\u7684\u9891\u7387\u3001\u78c1\u82af\u6709\u6548\u53c2\u6570\u3001\u52b1\u78c1\u7535\u611f\u3001\u6574\u6d41\u538b\u964d\u548c\u63a7\u5236\u9608\u503c\u90fd\u662f\u660e\u786e\u7684\u8bbe\u8ba1\u5047\u8bbe\uff0c\u4e0d\u662f\u5df2\u7ecf\u9a8c\u8bc1\u7684\u91cf\u4ea7BOM\u3002\u9009\u62e9\u5b9e\u9645\u78c1\u82af\u3001\u63a7\u5236\u5668\u4e0e\u5668\u4ef6\u540e\uff0c\u5fc5\u987b\u56de\u4ee3\u516c\u5dee\u3001\u5de5\u4f5c\u6e29\u5ea6\u3001\u635f\u8017\u548c\u5f02\u5e38\u5de5\u51b5\u3002\u5e02\u7535\u6837\u673a\u7684\u70ed\u5730\u5177\u6709\u5371\u9669\u7535\u4f4d\uff0c\u8c03\u538b\u5668\u4e0d\u4e00\u5b9a\u63d0\u4f9b\u9694\u79bb\uff0c\u666e\u901a\u63a5\u5730\u793a\u6ce2\u5668\u5730\u5939\u4e0d\u80fd\u76f4\u63a5\u8fde\u63a5\u70ed\u5730\uff1b\u5e02\u7535\u6d4b\u91cf\u5e94\u4f7f\u7528\u5408\u9002\u7684\u9694\u79bb\u3001\u9650\u6d41\u3001\u5dee\u5206\u6d4b\u91cf\u4e0e\u653e\u7535\u63aa\u65bd\u3002<\/p>\n<p>\u5df2\u6709\u7684\u300a<a href=\"https:\/\/www.oldhamburger.cn\/index.php\/2026\/10\/12\/flyback-220vac-5v-design-guide\/\">\u53cd\u6fc0\u7535\u6e90\u8be6\u89e3<\/a>\u300b\u548c\u300a<a href=\"https:\/\/www.oldhamburger.cn\/index.php\/2026\/09\/19\/transformer-calculation-winding-guide\/\">\u53d8\u538b\u5668\u53c2\u6570\u8ba1\u7b97\u4e0e\u7ed5\u5236\u5b9e\u6218<\/a>\u300b\u53ef\u4ee5\u4f5c\u4e3a\u5bf9\u7167\uff0c\u4f46\u672c\u6587\u4ece\u5934\u89e3\u91ca\u7b26\u53f7\u4e0e\u63a8\u5bfc\uff0c\u4e0d\u8981\u6c42\u8bfb\u8005\u5148\u770b\u5b8c\u5b83\u4eec\u3002<\/p>\n<div class=\"toc\">\n<ul>\n<li><a href=\"#_1\">\u4e00\u3001\u5148\u5efa\u7acb\u76f4\u89c9\uff1a\u6b63\u6fc0\u7684\u80fd\u91cf\u600e\u6837\u6d41\u52a8<\/a><\/li>\n<li><a href=\"#_2\">\u4e8c\u3001\u5355\u7ba1\u6b63\u6fc0\u57fa\u672c\u62d3\u6251\uff1a\u5148\u8ba4\u6e05\u6bcf\u4e2a\u8282\u70b9<\/a><\/li>\n<li><a href=\"#_3\">\u4e09\u3001\u4e09\u4e2a\u5de5\u4f5c\u9636\u6bb5\uff1a\u4f20\u80fd\u3001\u590d\u4f4d\u4e0e\u590d\u4f4d\u540e\u7684\u7b49\u5f85<\/a><\/li>\n<li><a href=\"#_4\">\u56db\u3001\u7b26\u53f7\u4e0e\u6a21\u578b\uff1a\u660e\u786e\u531d\u6bd4\u3001\u53c2\u8003\u4fa7\u548c\u538b\u964d<\/a><\/li>\n<li><a href=\"#buck\">\u4e94\u3001\u8f93\u51fa\u5173\u7cfb\u63a8\u5bfc\uff1a\u4e3a\u4ec0\u4e48\u6b63\u6fc0\u50cf\u9694\u79bbBuck<\/a><\/li>\n<li><a href=\"#50\">\u516d\u3001\u78c1\u82af\u590d\u4f4d\u63a8\u5bfc\uff1a50%\u4e0d\u662f\u6240\u6709\u6b63\u6fc0\u7684\u56fa\u5b9a\u5929\u82b1\u677f<\/a><\/li>\n<li><a href=\"#_5\">\u4e03\u3001\u53cc\u7ba1\u6b63\u6fc0\uff1a\u4e24\u4e2a\u7ba1\u540c\u65f6\u5f00\uff0c\u4e0d\u662f\u534a\u6865\u4ea4\u66ff\u5f00<\/a><\/li>\n<li><a href=\"#rcd\">\u516b\u3001\u5176\u4ed6\u590d\u4f4d\u65b9\u5f0f\uff1aRCD\u3001\u6709\u6e90\u94b3\u4f4d\u548c\u8c10\u632f\u590d\u4f4d<\/a><\/li>\n<li><a href=\"#_6\">\u4e5d\u3001\u53d8\u538b\u5668\u8bbe\u8ba1\uff1a\u5148\u4f0f\u79d2\uff0c\u518d\u52b1\u78c1\u7535\u611f\u4e0e\u7535\u6d41<\/a><\/li>\n<li><a href=\"#_7\">\u5341\u3001\u8f93\u51fa\u7535\u611f\u8ba1\u7b97\uff1a\u6b63\u6fc0\u7684\u4e3b\u8981\u50a8\u80fd\u5143\u4ef6<\/a><\/li>\n<li><a href=\"#_8\">\u5341\u4e00\u3001\u521d\u6b21\u7ea7\u548c\u6574\u6d41\u5668\u7535\u6d41\uff1a\u628a\u4e00\u4e2a\u5468\u671f\u79ef\u5206\u5b8c\u6574<\/a><\/li>\n<li><a href=\"#3660-v12-v5-a\">\u5341\u4e8c\u3001\u5355\u7ba1\u5b8c\u6574\u7b97\u4f8b\uff1a36\uff5e60 V\u8f93\u5165\uff0c12 V\/5 A\u8f93\u51fa<\/a><\/li>\n<li><a href=\"#_9\">\u5341\u4e09\u3001\u7ed5\u5236\u65b9\u6cd5\uff1a\u53d8\u538b\u5668\u548c\u8f93\u51fa\u7535\u611f\u5206\u5f00\u505a\u5de5\u827a\u5361<\/a><\/li>\n<li><a href=\"#220-v5-v2-a\">\u5341\u56db\u3001220 V\u4ea4\u6d41\u8f6c5 V\/2 A\uff1a\u4e3a\u4ec0\u4e48\u9009\u62e9\u53cc\u7ba1\u4f5c\u5bf9\u7167<\/a><\/li>\n<li><a href=\"#_10\">\u5341\u4e94\u3001\u5e02\u7535\u524d\u7aef\u4e0e\u50a8\u80fd\uff1a\u628a\u4ea4\u6d41\u8f93\u5165\u4e5f\u7b97\u5b8c\u6574<\/a><\/li>\n<li><a href=\"#_11\">\u5341\u516d\u3001\u5e02\u7535\u7b97\u4f8b\u7684\u53d8\u538b\u5668\u4e0e\u8f93\u51fa\u7535\u611f\u7ed5\u6cd5<\/a><\/li>\n<li><a href=\"#_12\">\u5341\u4e03\u3001\u6574\u6d41\u5668\u4e0e\u540c\u6b65\u6574\u6d41\uff1a\u7535\u6d41\u5206\u914d\u51b3\u5b9a\u635f\u8017<\/a><\/li>\n<li><a href=\"#mosfet\">\u5341\u516b\u3001\u4e3bMOSFET\u3001\u590d\u4f4d\u5668\u4ef6\u4e0e\u9ad8\u8fb9\u9a71\u52a8<\/a><\/li>\n<li><a href=\"#_13\">\u5341\u4e5d\u3001\u8f93\u51fa\u7535\u5bb9\uff1a\u4ece\u7535\u611f\u7eb9\u6ce2\u5230\u8d1f\u8f7d\u77ac\u6001<\/a><\/li>\n<li><a href=\"#dcmvodkvin\">\u4e8c\u5341\u3001\u8f7b\u8f7dDCM\uff1a\u4e0d\u80fd\u7ee7\u7eed\u65e0\u6761\u4ef6\u5957Vo=DkVin<\/a><\/li>\n<li><a href=\"#_14\">\u4e8c\u5341\u4e00\u3001\u5cf0\u503c\u7535\u6d41\u63a7\u5236\u4e0e\u91c7\u6837\uff1a\u770b\u5230\u7684\u4e0d\u662f\u7eaf\u52b1\u78c1\u7535\u6d41<\/a><\/li>\n<li><a href=\"#lc\">\u4e8c\u5341\u4e8c\u3001\u53cd\u9988\u4e0e\u73af\u8def\uff1a\u6b63\u6fc0\u7684\u8f93\u51faLC\u5e26\u6765\u4ec0\u4e48<\/a><\/li>\n<li><a href=\"#_15\">\u4e8c\u5341\u4e09\u3001\u542f\u52a8\u4e0e\u8f85\u52a9\u4f9b\u7535\uff1a\u6b63\u6fc0\u7684\u4f9b\u7535\u4e0d\u80fd\u7167\u642c\u53cd\u6fc0<\/a><\/li>\n<li><a href=\"#_16\">\u4e8c\u5341\u56db\u3001\u6f0f\u611f\u3001\u5c16\u5cf0\u4e0e\u5438\u6536\uff1a\u590d\u4f4d\u6b63\u786e\u4e5f\u53ef\u80fd\u6709\u8fc7\u538b<\/a><\/li>\n<li><a href=\"#mosfet_1\">\u4e8c\u5341\u4e94\u3001\u635f\u8017\u4e0e\u70ed\u8bbe\u8ba1\uff1a\u4e0d\u8981\u53ea\u8ba1\u7b97\u4e3bMOSFET<\/a><\/li>\n<li><a href=\"#_17\">\u4e8c\u5341\u516d\u3001\u4fdd\u62a4\u4e0e\u5f02\u5e38\u4f0f\u79d2\uff1a\u6b63\u5e38\u7a33\u6001\u4e0d\u662f\u6700\u574f\u60c5\u51b5<\/a><\/li>\n<li><a href=\"#pcb\">\u4e8c\u5341\u4e03\u3001PCB\u5e03\u5c40\uff1a\u56de\u6d41\u8def\u5f84\u6bd4\u5730\u7b26\u53f7\u66f4\u771f\u5b9e<\/a><\/li>\n<li><a href=\"#_18\">\u4e8c\u5341\u516b\u3001\u4ece\u7b2c\u4e00\u53ea\u6837\u673a\u5230\u7a33\u5b9a\u8fd0\u884c\uff1a\u6309\u987a\u5e8f\u8c03\u8bd5<\/a><\/li>\n<li><a href=\"#_19\">\u4e8c\u5341\u4e5d\u3001\u5e38\u89c1\u6545\u969c\uff1a\u4ece\u73b0\u8c61\u56de\u5230\u7535\u8def\u8def\u5f84<\/a><\/li>\n<li><a href=\"#_20\">\u4e09\u5341\u3001\u591a\u8def\u8f93\u51fa\u3001\u540c\u6b65\u6574\u6d41\u4e0e\u62d3\u6251\u9009\u62e9\u7684\u8fb9\u754c<\/a><\/li>\n<li><a href=\"#_21\">\u4e09\u5341\u4e00\u3001\u628a\u8bbe\u8ba1\u4ea4\u4ed8\u4e3a\u8ba1\u7b97\u8868\u3001\u7ed5\u7ec4\u8868\u548c\u6d4b\u8bd5\u89c4\u8303<\/a><\/li>\n<li><a href=\"#_22\">\u4e09\u5341\u4e8c\u3001\u7ec3\u4e60\u4e0e\u7b54\u6848\uff1a\u68c0\u67e5\u662f\u5426\u771f\u6b63\u8bfb\u61c2\u6b63\u6fc0<\/a><\/li>\n<li><a href=\"#_32\">\u53c2\u8003\u8d44\u6599\u4e0e\u8fdb\u4e00\u6b65\u9605\u8bfb<\/a><\/li>\n<\/ul>\n<\/div>\n<h2 id=\"_1\">\u4e00\u3001\u5148\u5efa\u7acb\u76f4\u89c9\uff1a\u6b63\u6fc0\u7684\u80fd\u91cf\u600e\u6837\u6d41\u52a8<\/h2>\n<h3 id=\"11\">1.1 \u5bfc\u901a\u4f20\u80fd\uff0c\u4e0d\u628a\u4e3b\u529f\u7387\u5148\u5b58\u8fdb\u53d8\u538b\u5668<\/h3>\n<p>\u4e3b\u5f00\u5173\u5bfc\u901a\uff0c\u521d\u7ea7\u7ed5\u7ec4\u627f\u53d7\u8f93\u5165\u7535\u538b\uff0c\u6b21\u7ea7\u6309\u531d\u6bd4\u4ea7\u751f\u6b63\u5411\u7535\u538b\uff0c\u4e3b\u6574\u6d41\u5668\u5bfc\u901a\uff0c\u7535\u6d41\u901a\u8fc7\u8f93\u51fa\u7535\u611f\u6d41\u5411\u8d1f\u8f7d\u548c\u8f93\u51fa\u7535\u5bb9\u3002\u53d8\u538b\u5668\u5728\u8fd9\u4e00\u9636\u6bb5\u628a\u8f93\u5165\u529f\u7387\u76f4\u63a5\u9001\u5230\u6b21\u7ea7\uff0c\u540c\u65f6\u4ea7\u751f\u5c11\u91cf\u52b1\u78c1\u7535\u6d41\u3002\u8d1f\u8f7d\u7535\u6d41\u7684\u4e3b\u8981\u78c1\u52bf\u7531\u521d\u7ea7\u53cd\u5c04\u7535\u6d41\u4e0e\u6b21\u7ea7\u7535\u6d41\u4e92\u76f8\u62b5\u6d88\uff0c\u52b1\u78c1\u652f\u8def\u8d1f\u8d23\u5efa\u7acb\u4e3b\u78c1\u901a\u3002<\/p>\n<p>\u8fd9\u4e0e\u53cd\u6fc0\u4e0d\u540c\uff1a\u53cd\u6fc0\u4e3b\u8981\u5728\u4e3b\u5f00\u5173\u5bfc\u901a\u671f\u95f4\u50a8\u80fd\u3001\u5173\u65ad\u540e\u9001\u80fd\uff1b\u6b63\u6fc0\u5728\u5bfc\u901a\u671f\u95f4\u5c31\u5df2\u7ecf\u5411\u8f93\u51fa\u4f20\u80fd\u3002\u4e24\u79cd\u7535\u8def\u90fd\u9075\u5faa\u7535\u78c1\u611f\u5e94\uff0c\u4f46\u529f\u7387\u4f20\u9012\u7684\u65f6\u95f4\u987a\u5e8f\u548c\u4e3b\u8981\u50a8\u80fd\u5143\u4ef6\u4e0d\u540c\u3002\u4e0d\u8981\u628a\u53cd\u6fc0\u7684\u6bcf\u5468\u671f\u5cf0\u503c\u50a8\u80fd\u516c\u5f0f\u76f4\u63a5\u62ff\u6765\u51b3\u5b9a\u6b63\u6fc0\u8f93\u51fa\u529f\u7387\u3002<\/p>\n<h3 id=\"12\">1.2 \u5173\u65ad\u4ee5\u540e\uff0c\u8f93\u51fa\u7535\u611f\u7ee7\u7eed\u5de5\u4f5c<\/h3>\n<p>\u4e3b\u5f00\u5173\u5173\u65ad\uff0c\u6b21\u7ea7\u6b63\u5411\u4f20\u80fd\u7535\u538b\u64a4\u53bb\uff0c\u8f93\u51fa\u7535\u611f\u4e2d\u7684\u7535\u6d41\u4e0d\u80fd\u7a81\u7136\u5f52\u96f6\u3002\u5b83\u901a\u8fc7\u7eed\u6d41\u4e8c\u6781\u7ba1\u5f62\u6210\u95ed\u5408\u56de\u8def\uff0c\u7ee7\u7eed\u5411\u8d1f\u8f7d\u4f9b\u7535\uff0c\u540c\u65f6\u7535\u6d41\u9010\u6e10\u4e0b\u964d\u3002\u4e3b\u6574\u6d41\u5668\u5728\u8fd9\u4e2a\u9636\u6bb5\u901a\u5e38\u622a\u6b62\uff0c\u8f93\u51fa\u7535\u5bb9\u5438\u6536\u6216\u8865\u507f\u7535\u611f\u7535\u6d41\u4e0e\u8d1f\u8f7d\u7535\u6d41\u4e4b\u95f4\u7684\u5dee\u503c\u3002<\/p>\n<p>\u56e0\u6b64\u6b63\u6fc0\u7684\u8f93\u51fa\u66f4\u50cf\u4e00\u4e2a\u5e26\u9694\u79bb\u53d8\u538b\u5668\u7684Buck\u3002\u53d8\u538b\u5668\u8d1f\u8d23\u53d8\u6362\u8109\u51b2\u5e45\u503c\u4e0e\u9694\u79bb\uff0c\u5f00\u5173\u5360\u7a7a\u6bd4\u51b3\u5b9a\u8109\u51b2\u5e73\u5747\u503c\uff0c\u8f93\u51fa\u7535\u611f\u548c\u7535\u5bb9\u628a\u8109\u51b2\u53d8\u6210\u8f83\u5e73\u6ed1\u7684\u76f4\u6d41\u3002\u8fd9\u4e2a\u5173\u7cfb\u4f7f\u8bb8\u591aBuck\u7684\u7535\u611f\u4e0e\u63a7\u5236\u65b9\u6cd5\u53ef\u4ee5\u7ecf\u8fc7\u6b63\u786e\u6298\u7b97\u540e\u7528\u4e8e\u6b63\u6fc0\u3002<\/p>\n<h3 id=\"13\">1.3 \u4e3a\u4ec0\u4e48\u8fd8\u9700\u8981\u590d\u4f4d<\/h3>\n<p>\u521d\u7ea7\u5bfc\u901a\u65f6\u589e\u52a0\u78c1\u901a\u3002\u5982\u679c\u6bcf\u4e2a\u5468\u671f\u53ea\u589e\u52a0\u800c\u4e0d\u64a4\u56de\uff0c\u78c1\u5bc6\u4f1a\u9010\u5468\u671f\u504f\u79fb\uff0c\u6700\u7ec8\u5230\u8fbe\u9971\u548c\u3002\u5173\u65ad\u5e76\u4e0d\u81ea\u52a8\u4fdd\u8bc1\u4e3b\u78c1\u901a\u590d\u4f4d\uff1b\u5fc5\u987b\u6709\u5141\u8bb8\u52b1\u78c1\u7535\u6d41\u7ee7\u7eed\u6d41\u52a8\u3001\u540c\u65f6\u5728\u521d\u7ea7\u65bd\u52a0\u53cd\u5411\u7535\u538b\u7684\u8def\u5f84\u3002<\/p>\n<p>\u8f93\u51fa\u7eed\u6d41\u56de\u8def\u4fdd\u8bc1\u8d1f\u8f7d\u7535\u6d41\u8fde\u7eed\uff0c\u78c1\u82af\u590d\u4f4d\u56de\u8def\u4fdd\u8bc1\u52b1\u78c1\u72b6\u6001\u5468\u671f\u7a33\u5b9a\u3002\u8fd9\u4e24\u6761\u56de\u8def\u5904\u7406\u4e0d\u540c\u80fd\u91cf\uff0c\u4e0d\u80fd\u4e92\u76f8\u66ff\u4ee3\u3002\u6b63\u6fc0\u8c03\u8bd5\u4e2d\u4e00\u4e2a\u975e\u5e38\u5e38\u89c1\u7684\u9519\u8bef\uff0c\u5c31\u662f\u770b\u5230\u8f93\u51fa\u7535\u611f\u6709\u7eed\u6d41\u4e8c\u6781\u7ba1\uff0c\u4fbf\u8ba4\u4e3a\u53d8\u538b\u5668\u4e5f\u5df2\u7ecf\u5b8c\u6210\u590d\u4f4d\u3002<\/p>\n<h3 id=\"14\">1.4 \u6b63\u6fc0\u4e0e\u53cd\u6fc0\u653e\u5728\u4e00\u8d77\u6bd4\u8f83<\/h3>\n<div style=\"overflow-x:auto;margin:20px 0\">\n<table style=\"width:100%;border-collapse:collapse;font-size:0.94em\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d4dce6;padding:10px;text-align:left;background:#eef4f9\">\u9879\u76ee<\/th>\n<th style=\"border:1px solid #d4dce6;padding:10px;text-align:left;background:#eef4f9\">\u6b63\u6fc0<\/th>\n<th style=\"border:1px solid #d4dce6;padding:10px;text-align:left;background:#eef4f9\">\u53cd\u6fc0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4e3b\u5f00\u5173\u5bfc\u901a\u65f6<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u8f93\u5165\u7ecf\u53d8\u538b\u5668\u5411\u8f93\u51fa\u4f20\u80fd<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u52b1\u78c1\u7535\u611f\u4e3b\u8981\u50a8\u80fd<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4e3b\u5f00\u5173\u5173\u65ad\u65f6<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u8f93\u51fa\u7535\u611f\u7eed\u6d41\uff0c\u78c1\u4ef6\u53e6\u884c\u590d\u4f4d<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6b21\u7ea7\u91ca\u653e\u52b1\u78c1\u50a8\u80fd<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4e3b\u8981\u50a8\u80fd\u4f4d\u7f6e<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u8f93\u51fa\u7535\u611f<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u53cd\u6fc0\u8026\u5408\u7535\u611f\u53ca\u5176\u6c14\u9699<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6b21\u7ea7\u57fa\u672c\u5668\u4ef6<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4e3b\u6574\u6d41\u3001\u7eed\u6d41\u3001\u8f93\u51fa\u7535\u611f<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6574\u6d41\u53ca\u8f93\u51fa\u7535\u5bb9<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u53d8\u538b\u5668\u52b1\u78c1\u7535\u611f<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u901a\u5e38\u5e0c\u671b\u8f83\u5927<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4e0e\u80fd\u91cf\u53ca\u5cf0\u503c\u4e00\u8d77\u8bbe\u8ba1<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u521d\u7ea7\u7535\u6d41<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u53cd\u5c04\u8d1f\u8f7d\u7535\u6d41\u52a0\u52b1\u78c1\u7535\u6d41<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4e3b\u8981\u662f\u50a8\u80fd\u52b1\u78c1\u7535\u6d41<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u63a7\u5236\u91cd\u70b9<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u590d\u4f4d\u3001\u8f93\u51fa\u7535\u611f\u3001\u6362\u6d41\u3001\u9a71\u52a8<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u50a8\u80fd\u3001\u9000\u78c1\u3001\u5c16\u5cf0\u4e0e\u6a21\u5f0f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u6b63\u6fc0\u5e76\u4e0d\u5728\u6240\u6709\u529f\u7387\u4e0b\u90fd\u6bd4\u53cd\u6fc0\u66f4\u597d\u3002\u589e\u52a0\u7535\u611f\u3001\u6574\u6d41\u5668\u548c\u9a71\u52a8\u4f1a\u589e\u52a0\u6210\u672c\uff1b\u4e94\u4f0f\u5341\u74e6\u901a\u5e38\u53ef\u4ee5\u7528\u66f4\u7b80\u5355\u7684\u53cd\u6fc0\u3002\u672c\u6587\u4ecd\u7528\u4e94\u4f0f\u4e24\u5b89\u5c55\u793a\u53cc\u7ba1\u6b63\u6fc0\uff0c\u662f\u4e3a\u4e86\u4fdd\u6301\u53c2\u6570\u5bf9\u7167\uff0c\u4e0d\u662f\u58f0\u79f0\u8be5\u529f\u7387\u4e0b\u4e00\u5b9a\u5e94\u9009\u6b63\u6fc0\u3002<\/p>\n<h2 id=\"_2\">\u4e8c\u3001\u5355\u7ba1\u6b63\u6fc0\u57fa\u672c\u62d3\u6251\uff1a\u5148\u8ba4\u6e05\u6bcf\u4e2a\u8282\u70b9<\/h2>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-02-single-topology.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" style=\"display:block;max-width:100%;height:auto;margin:26px auto\" loading=\"lazy\" alt=\"\u5355\u7ba1\u6b63\u6fc0\u5e26\u590d\u4f4d\u7ed5\u7ec4\u7684\u5b8c\u6574\u57fa\u672c\u62d3\u6251\" data-original=\"https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-02-single-topology.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<h3 id=\"21\">2.1 \u521d\u7ea7\u4e3b\u56de\u8def<\/h3>\n<p>\u8f93\u5165\u6b63\u7aef\u8fde\u63a5\u521d\u7ea7\u70b9\u7aef\uff0c\u521d\u7ea7\u975e\u70b9\u7aef\u63a5\u4e3bMOSFET\u6f0f\u6781\uff0c\u6e90\u6781\u7ecf\u8fc7\u7535\u6d41\u91c7\u6837\u7535\u963b\u8fd4\u56de\u8f93\u5165\u8d1f\u7aef\u3002\u8f93\u5165\u7535\u5bb9\u4e3a\u9ad8\u9891\u8109\u51b2\u63d0\u4f9b\u5c40\u90e8\u7535\u6d41\uff0c\u63a7\u5236\u5668\u9a71\u52a8\u6805\u6781\u3002\u548c\u4f4e\u8fb9\u53cd\u6fc0\u5916\u89c2\u76f8\u4f3c\u7684\u90e8\u5206\u4e0d\u4ee3\u8868\u5de5\u4f5c\u65b9\u5f0f\u76f8\u540c\uff0c\u533a\u522b\u4e3b\u8981\u4f53\u73b0\u5728\u6b21\u7ea7\u6781\u6027\u4e0e\u8f93\u51fa\u50a8\u80fd\u7ed3\u6784\u3002<\/p>\n<p>\u8fd9\u91cc\u4e00\u6b21\u4fa7\u5730\u53ea\u4ee3\u8868\u8f93\u5165\u8fd4\u56de\uff0c\u4e0d\u4ee3\u8868\u4fdd\u62a4\u5730\u3002\u4f4e\u538b\u5b9e\u9a8c\u4e5f\u8981\u786e\u8ba4\u4eea\u5668\u4e4b\u95f4\u662f\u5426\u901a\u8fc7\u4fdd\u62a4\u5730\u6216USB\u76f8\u8fde\uff1b\u5e02\u7535\u6574\u6d41\u540e\u7684\u8d1f\u7aef\u5219\u662f\u70ed\u5730\uff0c\u548c\u53ef\u89e6\u6478\u8f93\u51fa\u4e4b\u95f4\u5e94\u4fdd\u6301\u89c4\u5b9a\u9694\u79bb\u3002\u539f\u7406\u56fe\u753b\u4e86\u4e24\u4e2a\u5730\u7b26\u53f7\uff0c\u5b9e\u9645\u63a5\u7ebf\u4ecd\u53ef\u80fd\u628a\u5b83\u4eec\u65e0\u610f\u8fde\u63a5\u3002<\/p>\n<h3 id=\"22\">2.2 \u6b21\u7ea7\u4e3b\u6574\u6d41\u4e0e\u7eed\u6d41<\/h3>\n<p>\u672c\u6587\u5c06\u6b21\u7ea7\u70b9\u7aef\u653e\u5728\u4e0a\u7aef\u5e76\u63a5\u4e3b\u6574\u6d41\u5668DF\u9633\u6781\uff0c\u975e\u70b9\u7aef\u63a5\u8f93\u51fa\u5730\u3002DF\u9634\u6781\u8fde\u63a5\u5f00\u5173\u8282\u70b9SW\uff0cSW\u7ecf\u8fc7\u8f93\u51fa\u7535\u611fLo\u63a5\u8f93\u51fa\u6b63\u7aef\u3002\u7eed\u6d41\u4e8c\u6781\u7ba1DW\u9633\u6781\u63a5\u8f93\u51fa\u5730\u3001\u9634\u6781\u63a5SW\uff0c\u65b9\u5411\u4e0d\u80fd\u98a0\u5012\u3002<\/p>\n<p>\u521d\u7ea7\u70b9\u7aef\u4e3a\u6b63\u65f6\uff0c\u6b21\u7ea7\u70b9\u7aef\u540c\u76f8\u4e3a\u6b63\uff0cDF\u5bfc\u901a\u800cDW\u53cd\u504f\u3002\u5f00\u5173\u5173\u65ad\u540e\uff0c\u7535\u611f\u5c06SW\u62c9\u5230\u8f93\u51fa\u5730\u4ee5\u4e0b\u7ea6\u4e00\u4e2a\u4e8c\u6781\u7ba1\u538b\u964d\uff0cDW\u5bfc\u901a\uff0c\u7535\u611f\u7535\u6d41\u4ece\u8f93\u51fa\u5730\u7ecfDW\u3001Lo\u3001\u8d1f\u8f7d\u56de\u5230\u8f93\u51fa\u5730\u3002\u8f93\u51fa\u7535\u5bb9\u5e76\u63a5\u8d1f\u8f7d\uff0c\u627f\u62c5\u7535\u611f\u7eb9\u6ce2\u800c\u4e0d\u662f\u5168\u90e8\u8d1f\u8f7d\u7535\u6d41\u3002<\/p>\n<h3 id=\"23\">2.3 \u590d\u4f4d\u7ed5\u7ec4\u600e\u4e48\u63a5<\/h3>\n<p>\u590d\u4f4d\u7ed5\u7ec4Nr\u4e0e\u4e3b\u78c1\u82af\u8026\u5408\uff0c\u4f46\u6781\u6027\u548c\u8fde\u63a5\u4f7f\u5b83\u5728\u4e3b\u5f00\u5173\u5bfc\u901a\u65f6\u590d\u4f4d\u4e8c\u6781\u7ba1DR\u622a\u6b62\uff0c\u5173\u65ad\u65f6DR\u5bfc\u901a\uff0c\u628a\u52b1\u78c1\u80fd\u91cf\u9001\u56de\u8f93\u5165\u7535\u5bb9\u3002\u56fe\u4e2d\u590d\u4f4d\u7ed5\u7ec4\u4e0a\u7aef\u4e3a\u975e\u70b9\u7aef\u5e76\u63a5\u8f93\u5165\u6b63\u7aef\uff0c\u4e0b\u7aef\u4e3a\u70b9\u7aef\u5e76\u63a5DR\u9634\u6781\uff0cDR\u9633\u6781\u63a5\u8f93\u5165\u8d1f\u7aef\u3002<\/p>\n<p>\u5173\u65ad\u590d\u4f4d\u65f6\uff0c\u7535\u6d41\u4ece\u8f93\u5165\u8d1f\u7aef\u7ecfDR\u8fdb\u5165\u590d\u4f4d\u7ed5\u7ec4\u70b9\u7aef\uff0c\u518d\u7531\u975e\u70b9\u7aef\u6d41\u5411\u8f93\u5165\u6b63\u7aef\u3002\u8fd9\u4e00\u7535\u6d41\u7ed9\u8f93\u5165\u7535\u5bb9\u56de\u9001\u80fd\u91cf\uff0c\u540c\u65f6\u4f7f\u521d\u7ea7\u5f97\u5230\u8d1f\u5411\u590d\u4f4d\u7535\u538b\u3002\u4e00\u5b9a\u8981\u7ed3\u5408\u70b9\u7aef\u770b\u611f\u5e94\u7535\u538b\uff0c\u4e0d\u80fd\u4ec5\u51ed\u56fe\u4e0a\u7ed5\u7ec4\u5728\u5de6\u8fd8\u662f\u53f3\u731c\u6781\u6027\u3002<\/p>\n<h3 id=\"24\">2.4 \u54ea\u4e9b\u5143\u4ef6\u5728\u56fe\u4e2d\u6682\u65f6\u7701\u7565<\/h3>\n<p>\u57fa\u7840\u56fe\u53ea\u4fdd\u7559\u4e3b\u8981\u529f\u7387\u8def\u5f84\u3002\u5b9e\u9645\u8fd8\u9700\u8981\u6805\u6781\u7535\u963b\u3001\u91c7\u6837\u6ee4\u6ce2\u3001\u6f0f\u611f\u5438\u6536\u3001\u542f\u52a8\u4e0e\u8f85\u52a9\u4f9b\u7535\u3001\u53cd\u9988\u8865\u507f\u548c\u4fdd\u62a4\u3002\u5e02\u7535\u8f93\u5165\u8fd8\u8981\u5305\u542b\u6574\u6d41\u3001\u50a8\u80fd\u3001\u6d6a\u6d8c\u3001\u4fdd\u9669\u53caEMI\u5904\u7406\u3002<\/p>\n<p>\u5b8c\u6574\u8bbe\u8ba1\u5e94\u628a\u6bcf\u4e2a\u9644\u52a0\u6a21\u5757\u5bf9\u5e94\u5230\u5177\u4f53\u95ee\u9898\u3002\u590d\u4f4d\u7ed5\u7ec4\u89e3\u51b3\u52b1\u78c1\u4f0f\u79d2\uff0c\u5438\u6536\u89e3\u51b3\u5bc4\u751f\u5c16\u5cf0\uff0c\u53cd\u9988\u8c03\u8282\u5e73\u5747\u8f93\u51fa\uff0c\u4fdd\u9669\u8d1f\u8d23\u89c4\u5b9a\u6545\u969c\u5207\u65ad\uff1b\u5b83\u4eec\u4e0d\u80fd\u56e0\u4e3a\u90fd\u5e26\u6709\u201c\u4fdd\u62a4\u201d\u542b\u4e49\u5c31\u4e92\u76f8\u6df7\u7528\u3002<\/p>\n<h2 id=\"_3\">\u4e09\u3001\u4e09\u4e2a\u5de5\u4f5c\u9636\u6bb5\uff1a\u4f20\u80fd\u3001\u590d\u4f4d\u4e0e\u590d\u4f4d\u540e\u7684\u7b49\u5f85<\/h2>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-03-stages.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" style=\"display:block;max-width:100%;height:auto;margin:26px auto\" loading=\"lazy\" alt=\"\u6b63\u6fc0\u5bfc\u901a\u4f20\u80fd\u3001\u5173\u65ad\u590d\u4f4d\u3001\u590d\u4f4d\u540e\u7eed\u6d41\u4e09\u4e2a\u9636\u6bb5\" data-original=\"https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-03-stages.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<h3 id=\"31\">3.1 \u9636\u6bb5\u4e00\uff1a\u4e3b\u5f00\u5173\u5bfc\u901a<\/h3>\n<p>\u521d\u7ea7\u5f97\u5230\u8fd1\u4f3cVin\uff0c\u6b21\u7ea7\u5f97\u5230kVin\uff0c\u5176\u4e2dk=Ns\/Np\u3002DF\u5bfc\u901a\uff0cDW\u622a\u6b62\uff0c\u8f93\u51fa\u7535\u611f\u7535\u538b\u7ea6\u4e3akVin\u2212VF\u2212Vo\u3002\u53ea\u8981\u8fd9\u4e2a\u7535\u538b\u4e3a\u6b63\uff0c\u7535\u611f\u7535\u6d41\u5411\u4e0a\u722c\u5347\u3002\u53d8\u538b\u5668\u540c\u65f6\u4ea7\u751f\u52b1\u78c1\u7535\u6d41\uff0c\u5176\u659c\u7387\u7ea6Vin\/Lm\u3002<\/p>\n<p>\u521d\u7ea7\u7535\u6d41\u5305\u542b\u4e24\u90e8\u5206\uff1a\u8f93\u51fa\u7535\u611f\u7535\u6d41\u6298\u7b97\u5230\u521d\u7ea7\u7684kIL\uff0c\u4ee5\u53ca\u52b1\u78c1\u7535\u6d41im\u3002\u5728\u7406\u60f3\u7a81\u7136\u5f00\u901a\u7684\u6a21\u578b\u4e2d\uff0c\u5373\u4f7f\u52b1\u78c1\u7535\u6d41\u4ece\u96f6\u5f00\u59cb\uff0c\u521d\u7ea7\u8d1f\u8f7d\u5206\u91cf\u4e5f\u53ef\u80fd\u7acb\u523b\u8df3\u5230\u975e\u96f6\u503c\u3002\u771f\u5b9e\u4e0a\u5347\u7531\u6f0f\u611f\u3001\u5668\u4ef6\u548c\u6362\u6d41\u51b3\u5b9a\uff0c\u4e0d\u80fd\u628a\u6574\u6761\u521d\u7ea7\u6ce2\u5f62\u90fd\u7406\u89e3\u4e3a\u4ece\u96f6\u5f00\u59cb\u7684\u52b1\u78c1\u4e09\u89d2\u5f62\u3002<\/p>\n<h3 id=\"32\">3.2 \u9636\u6bb5\u4e8c\uff1a\u5173\u65ad\u4e0e\u78c1\u82af\u590d\u4f4d<\/h3>\n<p>\u4e3b\u5f00\u5173\u5173\u65ad\u540e\uff0cDF\u622a\u6b62\u3001DW\u5bfc\u901a\uff0c\u8f93\u51fa\u7535\u611f\u7535\u6d41\u4e0b\u964d\u3002\u521d\u7ea7\u52b1\u78c1\u7535\u6d41\u8f6c\u5165\u590d\u4f4d\u7ed5\u7ec4\uff0c\u4f7fDR\u5bfc\u901a\uff0c\u521d\u7ea7\u627f\u53d7\u53cd\u5411\u7535\u538b\uff0c\u78c1\u901a\u9010\u6e10\u56de\u5230\u8be5\u5468\u671f\u8d77\u70b9\u9644\u8fd1\u3002\u6b64\u65f6\u8f93\u51fa\u4ecd\u7531Lo\u4f9b\u80fd\uff0c\u590d\u4f4d\u7ed5\u7ec4\u4e2d\u7684\u7535\u6d41\u4e0d\u662f\u8f93\u51fa\u8d1f\u8f7d\u7535\u6d41\u3002<\/p>\n<p>\u5982\u679c\u590d\u4f4d\u7ed5\u7ec4\u4e0e\u521d\u7ea7\u7b49\u531d\uff0c\u7406\u60f3\u8d1f\u5411\u521d\u7ea7\u7535\u538b\u5e45\u503c\u4e0e\u8f93\u5165\u76f8\u540c\uff0c\u6240\u9700\u590d\u4f4d\u65f6\u95f4\u8fd1\u4f3c\u7b49\u4e8e\u5bfc\u901a\u65f6\u95f4\u3002\u4e3b\u5f00\u5173\u6f0f\u6781\u56e0\u6b64\u5347\u5230\u7ea6\u4e24\u500d\u8f93\u5165\u3002\u6f0f\u611f\u5c16\u5cf0\u8fd8\u4f1a\u53e0\u52a0\uff0c\u5b9e\u9645\u8010\u538b\u4e0d\u80fd\u53ea\u770b\u8fd9\u4e2a\u7406\u60f3\u5e73\u53f0\u3002<\/p>\n<h3 id=\"33\">3.3 \u9636\u6bb5\u4e09\uff1a\u590d\u4f4d\u7ed3\u675f\u4f46\u7535\u611f\u4ecd\u5728\u7eed\u6d41<\/h3>\n<p>\u52b1\u78c1\u7535\u6d41\u964d\u5230\u63a5\u8fd1\u96f6\u540e\uff0cDR\u505c\u6b62\u5bfc\u901a\uff0c\u521d\u7ea7\u590d\u4f4d\u5e73\u53f0\u7ed3\u675f\uff0c\u6f0f\u6781\u53ef\u80fd\u8fdb\u5165\u5bc4\u751f\u632f\u94c3\u3002\u8f93\u51fa\u7535\u611f\u5e76\u4e0d\u4f1a\u56e0\u6b64\u505c\u6b62\u5de5\u4f5c\uff0c\u53ea\u8981IL\u4ecd\u5927\u4e8e\u96f6\uff0cDW\u7ee7\u7eed\u5bfc\u901a\uff0c\u76f4\u5230\u4e0b\u4e00\u6b21\u4e3b\u5f00\u5173\u5f00\u901a\u3002<\/p>\n<p>\u5982\u679c\u8d1f\u8f7d\u5f88\u8f7b\uff0c\u8f93\u51fa\u7535\u611f\u53ef\u80fd\u5728\u5468\u671f\u7ed3\u675f\u524d\u964d\u5230\u96f6\uff0c\u8fdb\u5165\u8f93\u51faDCM\u3002\u8fd9\u91cc\u7684DCM\u662f\u8f93\u51fa\u7535\u611f\u6a21\u5f0f\uff0c\u548c\u53d8\u538b\u5668\u662f\u5426\u5b8c\u6574\u590d\u4f4d\u662f\u4e0d\u540c\u95ee\u9898\u3002\u6b63\u6fc0\u53ef\u4ee5\u5728\u8f93\u51faCCM\u65f6\u6bcf\u5468\u671f\u5b8c\u6574\u590d\u4f4d\uff0c\u4e5f\u53ef\u4ee5\u5728\u8f93\u51faDCM\u65f6\u53d1\u751f\u9519\u8bef\u590d\u4f4d\uff0c\u4e24\u8005\u4e0d\u80fd\u6df7\u4e3a\u4e00\u8c08\u3002<\/p>\n<h3 id=\"34\">3.4 \u7528\u6ce2\u5f62\u8bc6\u522b\u9636\u6bb5<\/h3>\n<p>\u6805\u6781\u544a\u8bc9\u4f60\u5bfc\u901a\u533a\u95f4\uff0c\u6f0f\u6781\u7684\u9ad8\u5e73\u53f0\u4e0e\u590d\u4f4d\u7ed5\u7ec4\u7535\u6d41\u544a\u8bc9\u4f60\u590d\u4f4d\u533a\u95f4\uff0c\u8f93\u51fa\u7535\u611f\u7535\u6d41\u544a\u8bc9\u4f60CCM\u6216DCM\u3002\u4ec5\u51ed\u4e00\u4e2a\u6805\u6781\u65b9\u6ce2\uff0c\u4e0d\u80fd\u8bc1\u660e\u78c1\u82af\u590d\u4f4d\u6b63\u786e\uff0c\u4e5f\u4e0d\u80fd\u5224\u65ad\u8f93\u51fa\u7535\u611f\u6709\u6ca1\u6709\u9971\u548c\u3002<\/p>\n<p>\u5efa\u8bae\u540c\u65f6\u8bb0\u5f55\u521d\u7ea7\u7535\u538b\u3001\u7535\u6d41\u3001\u6f0f\u6781\u3001\u590d\u4f4d\u7535\u6d41\u548c\u8f93\u51fa\u7535\u611f\u6ce2\u5f62\uff0c\u518d\u7528\u5171\u540c\u65f6\u95f4\u5750\u6807\u6807\u6ce8\u4e09\u4e2a\u9636\u6bb5\u3002\u5982\u679c\u901a\u9053\u6709\u9650\uff0c\u53ef\u5728\u76f8\u540c\u7a33\u6001\u6761\u4ef6\u4e0b\u5206\u6b21\u6d4b\u91cf\uff0c\u4f46\u5fc5\u987b\u786e\u4fdd\u8d1f\u8f7d\u3001\u8f93\u5165\u548c\u63a7\u5236\u6a21\u5f0f\u6ca1\u6709\u53d8\u5316\u3002<\/p>\n<h2 id=\"_4\">\u56db\u3001\u7b26\u53f7\u4e0e\u6a21\u578b\uff1a\u660e\u786e\u531d\u6bd4\u3001\u53c2\u8003\u4fa7\u548c\u538b\u964d<\/h2>\n<h3 id=\"41\">4.1 \u672c\u6587\u7684\u7edf\u4e00\u5b9a\u4e49<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>k=N<sub>s<\/sub>\/N<sub>p<\/sub>\uff1b\u3000r=N<sub>r<\/sub>\/N<sub>p<\/sub>\uff1b\u3000T<sub>s<\/sub>=1\/f<sub>s<\/sub>\uff1b\u3000D=t<sub>on<\/sub>\/T<sub>s<\/sub><\/strong><\/p>\n<p>k\u7528\u4e8e\u6b21\u7ea7\u7535\u538b\u548c\u521d\u7ea7\u53cd\u5c04\u7535\u6d41\uff0cr\u7528\u4e8e\u590d\u4f4d\u65f6\u95f4\u3002\u67d0\u4e9b\u8d44\u6599\u628aNp\/Ns\u4e5f\u5199\u6210n\uff0c\u628aNp\/Nr\u5199\u6210\u590d\u4f4d\u6bd4\uff0c\u548c\u672c\u6587\u65b9\u5411\u76f8\u53cd\u3002\u4f7f\u7528\u4efb\u4f55\u5916\u90e8\u516c\u5f0f\u524d\u90fd\u5148\u628a\u5b9a\u4e49\u5c55\u5f00\u6210\u771f\u5b9e\u531d\u6570\uff0c\u907f\u514d\u4e00\u4f1a\u513f\u6b63\u6bd4\u4e00\u4f1a\u513f\u53cd\u6bd4\u3002<\/p>\n<p>Lm\u662f\u521d\u7ea7\u53c2\u8003\u52b1\u78c1\u7535\u611f\uff0cLo\u662f\u8f93\u51fa\u50a8\u80fd\u7535\u611f\u3002\u0394IL\u8868\u793a\u8f93\u51fa\u7535\u611f\u5cf0\u5cf0\u7eb9\u6ce2\uff0cIo\u4e3a\u5e73\u5747\u8f93\u51fa\u7535\u6d41\u3002Im,pk\u8868\u793a\u521d\u7ea7\u53c2\u8003\u52b1\u78c1\u5cf0\u503c\uff0cIp,pk\u5219\u5305\u542b\u8d1f\u8f7d\u5206\u91cf\uff0c\u4e24\u8005\u901a\u5e38\u76f8\u5dee\u5f88\u5927\u3002<\/p>\n<h3 id=\"42\">4.2 \u6b63\u5411\u4e0e\u7eed\u6d41\u538b\u964d\u5206\u5f00\u5199<\/h3>\n<p>VF\u8868\u793aDF\u5bfc\u901a\u538b\u964d\uff0cVW\u8868\u793aDW\u5bfc\u901a\u538b\u964d\uff0cRL\u8868\u793a\u8f93\u51fa\u7535\u611f\u53ca\u76f8\u5e94\u4e32\u8054\u8def\u5f84\u7684\u7b49\u6548\u7535\u963b\u3002\u4f4e\u538b\u8f93\u51fa\u65f6\u4e24\u53ea\u4e8c\u6781\u7ba1\u538b\u964d\u53ef\u80fd\u4e0d\u540c\uff0c\u540c\u6b65\u6574\u6d41\u540e\u66f4\u4e0d\u80fd\u7b80\u5355\u90fd\u7528\u4e00\u4e2a\u56fa\u5b9a\u6570\u5b57\u3002<\/p>\n<p>\u672c\u6587\u5148\u63a8\u5bfc\u542bVF\u3001VW\u7684\u6052\u538b\u964d\u6a21\u578b\uff0c\u518d\u5728\u7b97\u4f8b\u91cc\u4ee4\u4e24\u8005\u76f8\u7b49\u7b80\u5316\u3002\u94dc\u963b\u3001\u4e3b\u5f00\u5173\u538b\u964d\u3001\u6f0f\u611f\u6362\u6d41\u548c\u6b7b\u533a\u4f5c\u4e3a\u540e\u7eed\u8fed\u4ee3\u9879\u3002\u8fd9\u6837\u80fd\u770b\u6e05\u6bcf\u4e2a\u5047\u8bbe\u7684\u4f5c\u7528\uff0c\u800c\u4e0d\u4f1a\u628a\u5ffd\u7565\u9879\u8bef\u8ba4\u4e3a\u4e0d\u5b58\u5728\u3002<\/p>\n<h3 id=\"43\">4.3 \u56db\u7c7b\u7535\u6d41\u5206\u522b\u89e3\u51b3\u4ec0\u4e48<\/h3>\n<p>\u5cf0\u503c\u7528\u4e8e\u5668\u4ef6\u8109\u51b2\u3001\u9650\u6d41\u548c\u8f93\u51fa\u7535\u611f\u9971\u548c\uff1bRMS\u7528\u4e8e\u7ed5\u7ec4\u3001\u5bfc\u901a\u7535\u963b\u548c\u7535\u5bb9\u53d1\u70ed\uff1b\u5e73\u5747\u503c\u7528\u4e8e\u529f\u7387\u548c\u7535\u8377\u5e73\u8861\uff1b\u52b1\u78c1\u7535\u6d41\u7528\u4e8e\u4e3b\u78c1\u901a\u548c\u590d\u4f4d\u3002\u521d\u7ea7\u7aef\u53e3\u603b\u7535\u6d41\u867d\u7136\u6709\u5229\u4e8e\u4fdd\u62a4\uff0c\u5374\u4e0d\u5b9c\u76f4\u63a5\u4ee3\u5165LmI\/(NpAe)\u7b97\u78c1\u5bc6\u3002<\/p>\n<p>\u516c\u5f0f\u9ed8\u8ba4\u4f7f\u7528SI\u5355\u4f4d\u3002\u82e5\u78c1\u5bc6\u8ba1\u7b97\u4f7f\u7528V\u3001\u03bcs\u3001mm\u00b2\uff0c\u65f6\u95f4\u548c\u9762\u79ef\u7684\u5fae\u5355\u4f4d\u53ef\u4ee5\u62b5\u6d88\uff1b\u5982\u679c\u7528mH\u548cmm\u00b2\uff0c\u5219\u5fc5\u987b\u663e\u5f0f\u6362\u7b97\u3002\u5efa\u8bae\u7535\u5b50\u8868\u683c\u4fdd\u7559\u57fa\u672c\u5355\u4f4d\u5217\uff0c\u663e\u793a\u5217\u518d\u6362\u6210\u5fae\u4ea8\u3001\u5fae\u79d2\u548c\u6beb\u7279\u65af\u62c9\u3002<\/p>\n<h2 id=\"buck\">\u4e94\u3001\u8f93\u51fa\u5173\u7cfb\u63a8\u5bfc\uff1a\u4e3a\u4ec0\u4e48\u6b63\u6fc0\u50cf\u9694\u79bbBuck<\/h2>\n<h3 id=\"51\">5.1 \u5bf9\u8f93\u51fa\u7535\u611f\u505a\u4f0f\u79d2\u5e73\u8861<\/h3>\n<p>\u5bfc\u901a\u9636\u6bb5\u7535\u611f\u7535\u538b\u4e3akVin\u2212VF\u2212Vo\uff0c\u7eed\u6d41\u9636\u6bb5\u7ea6\u4e3a\u2212VW\u2212Vo\u3002\u7a33\u5b9aCCM\u8981\u6c42\u4e00\u4e2a\u5468\u671f\u5185\u7535\u611f\u7535\u538b\u79ef\u5206\u4e3a\u96f6\uff1a<\/p>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>D(kV<sub>in<\/sub>\u2212V<sub>F<\/sub>\u2212V<sub>o<\/sub>)+(1\u2212D)(\u2212V<sub>W<\/sub>\u2212V<sub>o<\/sub>)=0<\/strong><\/p>\n<p>\u6574\u7406\u5f97\u5230\uff1a<\/p>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>V<sub>o<\/sub>=DkV<sub>in<\/sub>\u2212DV<sub>F<\/sub>\u2212(1\u2212D)V<sub>W<\/sub><\/strong><\/p>\n<p>\u5ffd\u7565\u4e24\u53ea\u4e8c\u6781\u7ba1\u65f6\u5c31\u662fVo=DkVin\u3002\u8fd9\u4e2a\u516c\u5f0f\u6765\u6e90\u4e8e\u8f93\u51fa\u7535\u611f\u5e73\u8861\uff0c\u4e0d\u662f\u5355\u72ec\u7531\u53d8\u538b\u5668\u531d\u6bd4\u7ed9\u51fa\u3002\u6b21\u7ea7\u8109\u51b2\u5e45\u503c\u53ef\u80fd\u8fdc\u9ad8\u4e8e\u8f93\u51fa\uff0c\u4f4e\u901a\u5e73\u5747\u540e\u624d\u5f97\u5230\u76ee\u6807\u76f4\u6d41\u3002<\/p>\n<h3 id=\"52\">5.2 \u52a0\u5165\u94dc\u963b\u540e\u7684\u5360\u7a7a\u6bd4<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>D\u2248(V<sub>o<\/sub>+V<sub>W<\/sub>+I<sub>o<\/sub>R<sub>L<\/sub>)\/(kV<sub>in<\/sub>\u2212V<sub>F<\/sub>+V<sub>W<\/sub>)<\/strong><\/p>\n<p>\u8fd9\u53ea\u628aLo\u7535\u963b\u8fd1\u4f3c\u4e3a\u5e73\u5747\u538b\u964d\uff0c\u53d8\u538b\u5668\u94dc\u963b\u548c\u4e3b\u5f00\u5173\u7b49\u5f71\u54cd\u8fd8\u9700\u76f8\u5e94\u6298\u7b97\u3002\u6700\u4f4e\u8f93\u5165\u4e0b\u5360\u7a7a\u6bd4\u901a\u5e38\u6700\u5927\uff0c\u5fc5\u987b\u540c\u65f6\u6ee1\u8db3\u63a7\u5236\u5668DMAX\u548c\u78c1\u82af\u590d\u4f4d\u7ea6\u675f\u3002\u6ee1\u8f7d\u538b\u964d\u4f1a\u4f7f\u5b9e\u9645\u5360\u7a7a\u6bd4\u5927\u4e8e\u7406\u60f3\u503c\uff0c\u6240\u4ee5\u8bbe\u8ba1\u4e0d\u80fd\u5728\u6700\u4f4e\u8f93\u5165\u6070\u597d\u5360\u6ee1\u6781\u9650\u3002<\/p>\n<h3 id=\"53-vfvw\">5.3 \u5f53VF\u7b49\u4e8eVW<\/h3>\n<p>\u82e5\u4e24\u53ea\u4e8c\u6781\u7ba1\u5747\u53d6Vd\u3001\u6682\u4e0d\u542b\u94dc\u963b\uff0c\u5219\uff1a<\/p>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>D\u2248(V<sub>o<\/sub>+V<sub>d<\/sub>)\/(kV<sub>in<\/sub>)<\/strong><\/p>\n<p>\u8fd9\u89e3\u91ca\u4e86\u4e3a\u4f55\u5f88\u591a\u8d44\u6599\u628a\u6b63\u6fc0\u5199\u6210\u201c\u8f93\u51fa\u52a0\u4e00\u4e2a\u4e8c\u6781\u7ba1\u538b\u964d\u201d\u3002\u5e76\u4e0d\u662f\u6bcf\u4e2a\u65f6\u523b\u6709\u4e24\u53ea\u4e8c\u6781\u7ba1\u4e32\u8054\uff0c\u800c\u662f\u4e00\u4e2a\u5468\u671f\u91cc\u5206\u522b\u7531DF\u548cDW\u627f\u62c5\u7535\u6d41\uff0c\u4e24\u6bb5\u52a0\u6743\u540e\u7ea6\u4e3a\u4e00\u4e2a\u538b\u964d\u3002<\/p>\n<h3 id=\"54\">5.4 \u6548\u7387\u4e0d\u80fd\u968f\u610f\u585e\u8fdb\u531d\u6bd4\u516c\u5f0f<\/h3>\n<p>\u8f93\u5165\u529f\u7387\u53ef\u7528Po\/\u03b7\u505a\u9884\u7b97\uff0c\u4f46\u03b7\u4e0d\u662f\u628aVo=DkVin\u6539\u6210Vo=\u03b7DkVin\u7684\u4e07\u80fd\u4fee\u6b63\u56e0\u5b50\u3002\u6548\u7387\u5305\u542b\u63a7\u5236\u3001\u9a71\u52a8\u3001\u78c1\u82af\u548c\u94b3\u4f4d\u7b49\u635f\u8017\uff0c\u5176\u4e2d\u6709\u4e9b\u5e76\u4e0d\u8868\u73b0\u4e3a\u4e0e\u8f93\u51fa\u4e32\u8054\u7684\u56fa\u5b9a\u538b\u964d\u3002<\/p>\n<p>\u6b63\u786e\u505a\u6cd5\u662f\u5148\u628a\u538b\u964d\u548c\u6709\u6548\u5bfc\u901a\u65f6\u95f4\u7eb3\u5165\u7535\u538b\u5173\u7cfb\uff0c\u518d\u72ec\u7acb\u5efa\u7acb\u635f\u8017\u8868\u3002\u82e5\u6548\u7387\u9884\u7b97\u8fc7\u4e8e\u4e50\u89c2\uff0c\u5c31\u4fee\u6539\u5668\u4ef6\u3001\u7ed3\u6784\u6216\u76ee\u6807\uff0c\u5e76\u91cd\u7b97\u8f93\u5165\u4e0e\u70ed\uff1b\u4e0d\u8981\u7528\u4e00\u4e2a\u4eba\u4e3a\u767e\u5206\u6bd4\u63a9\u76d6\u4e22\u5931\u7684\u65f6\u5e8f\u6216\u9519\u8bef\u531d\u6bd4\u3002<\/p>\n<h2 id=\"50\">\u516d\u3001\u78c1\u82af\u590d\u4f4d\u63a8\u5bfc\uff1a50%\u4e0d\u662f\u6240\u6709\u6b63\u6fc0\u7684\u56fa\u5b9a\u5929\u82b1\u677f<\/h2>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-04-reset-tradeoff.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" style=\"display:block;max-width:100%;height:auto;margin:26px auto\" loading=\"lazy\" alt=\"\u590d\u4f4d\u531d\u6bd4\u3001\u590d\u4f4d\u65f6\u95f4\u3001\u6700\u5927\u5360\u7a7a\u6bd4\u4e0e\u5f00\u5173\u8010\u538b\u7684\u5173\u7cfb\" data-original=\"https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-04-reset-tradeoff.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<h3 id=\"61\">6.1 \u590d\u4f4d\u7ed5\u7ec4\u7535\u538b\u53cd\u5c04\u5230\u521d\u7ea7<\/h3>\n<p>\u590d\u4f4d\u65f6Nr\u7ed5\u7ec4\u88ab\u8f93\u5165\u6bcd\u7ebf\u53caDR\u94b3\u4f4f\uff0c\u521d\u7ea7\u83b7\u5f97\u7684\u53cd\u5411\u7535\u538b\u5e45\u503c\u8fd1\u4f3c\u4e3aVinNp\/Nr=Vin\/r\u3002\u5ffd\u7565\u4e8c\u6781\u7ba1\u4e0e\u94dc\u963b\uff0c\u4f0f\u79d2\u5e73\u8861\u8981\u6c42\u6b63\u5411Vin\u00b7ton\u7531\u8d1f\u5411(Vin\/r)\u00b7treset\u62b5\u6d88\uff1a<\/p>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>t<sub>reset<\/sub>\u2248r\u00b7t<sub>on<\/sub>\uff1b\u3000D+rD\u22641\uff1b\u3000D<sub>max,ideal<\/sub>\u22641\/(1+r)<\/strong><\/p>\n<p>\u7b49\u531d\u590d\u4f4dr=1\u65f6\u5f97\u5230D\u22640.5\u3002\u5b9e\u9645\u8981\u9884\u7559\u4e8c\u6781\u7ba1\u6362\u6d41\u3001\u63a7\u5236\u516c\u5dee\u3001\u5bc4\u751f\u4e0e\u8fc7\u6e21\u65f6\u95f4\uff0c\u4e0d\u80fd\u628a0.500\u5f53\u4f5c\u53ef\u957f\u671f\u65e0\u4f59\u91cf\u5de5\u4f5c\u7684\u76ee\u6807\u3002<\/p>\n<h3 id=\"62\">6.2 \u590d\u4f4d\u531d\u6570\u5c11\u4e00\u70b9\u4f1a\u600e\u6837<\/h3>\n<p>Nr\u51cf\u5c11\uff0cr\u53d8\u5c0f\uff0c\u53cd\u5411\u590d\u4f4d\u7535\u538b\u5e45\u503c\u589e\u5927\uff0c\u590d\u4f4d\u65f6\u95f4\u7f29\u77ed\uff0c\u7406\u8bba\u53ef\u7528\u5360\u7a7a\u6bd4\u63d0\u9ad8\u3002\u4f46\u4e3b\u5f00\u5173\u627f\u53d7\u66f4\u9ad8\u53cd\u5c04\u7535\u538b\uff0c\u590d\u4f4d\u7ed5\u7ec4\u5cf0\u503c\u7535\u6d41\u4e5f\u56e0Np\/Nr\u53d8\u5927\u3002\u65f6\u95f4\u6536\u76ca\u9700\u8981\u7528\u7535\u538b\u548c\u7535\u6d41\u5e94\u529b\u4ea4\u6362\u3002<\/p>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>V<sub>DS,reset<\/sub>\u2248V<sub>in<\/sub>(1+1\/r)\uff1b\u3000I<sub>r,pk<\/sub>\u2248I<sub>m,pk<\/sub>\/r<\/strong><\/p>\n<p>\u4f8b\u5982r=0.5\uff0c\u7406\u8bbaD\u6781\u9650\u4e3a2\/3\uff0c\u4f46\u6f0f\u6781\u5e73\u53f0\u7ea63Vin\uff1br=2\uff0c\u5e73\u53f0\u7ea61.5Vin\uff0c\u5374\u9700\u8981\u66f4\u957f\u590d\u4f4d\uff0c\u53ea\u5141\u8bb8D\u22641\/3\u3002\u4e0d\u80fd\u628a\u201c\u589e\u52a0\u590d\u4f4d\u531d\u6570\u201d\u8bef\u5199\u6210\u201c\u66f4\u5feb\u590d\u4f4d\u3001\u66f4\u9ad8\u5360\u7a7a\u6bd4\u201d\uff0c\u8fd9\u4e2a\u65b9\u5411\u6070\u597d\u76f8\u53cd\u3002<\/p>\n<h3 id=\"63-dr\">6.3 \u5bfc\u901a\u671f\u95f4DR\u4e5f\u627f\u53d7\u53cd\u538b<\/h3>\n<p>\u6309\u672c\u6587\u63a5\u7ebf\uff0c\u5bfc\u901a\u65f6\u590d\u4f4d\u7ed5\u7ec4\u611f\u5e94\u7535\u538b\u4f7fDR\u9634\u6781\u9ad8\u4e8e\u8f93\u5165\u8d1f\u7aef\uff0c\u5176\u7406\u60f3\u53cd\u538b\u91cf\u7ea7\u7ea6\u4e3aVin(1+r)\u3002\u5f00\u5173\u4e0e\u590d\u4f4d\u4e8c\u6781\u7ba1\u7684\u5e94\u529b\u4e0d\u662f\u540c\u4e00\u8868\u8fbe\u5f0f\uff0c\u53ea\u6709\u7b49\u531d\u65f6\u4e24\u8005\u90fd\u7ea6\u4e3a2Vin\u3002<\/p>\n<p>\u8bbe\u8ba1\u8fd8\u8981\u5305\u542b\u6f0f\u611f\u3001\u6062\u590d\u3001\u5e03\u5c40\u548c\u6bcd\u7ebf\u77ac\u6001\u3002\u590d\u4f4d\u4e8c\u6781\u7ba1\u5e73\u5747\u7535\u6d41\u53ef\u80fd\u5f88\u5c0f\uff0c\u4f46\u9ad8\u53cd\u538b\u4e0e\u52a8\u6001\u4ecd\u51b3\u5b9a\u9009\u578b\uff1b\u628a\u5b83\u5f53\u4f5c\u4e00\u53ea\u4f4e\u9891\u5c0f\u4fe1\u53f7\u4e8c\u6781\u7ba1\u53ef\u80fd\u9020\u6210\u590d\u4f4d\u5f02\u5e38\u3002<\/p>\n<h3 id=\"64\">6.4 \u5173\u65ad\u4e0d\u7b49\u4e8e\u4e3b\u78c1\u901a\u5df2\u7ecf\u5f52\u96f6<\/h3>\n<p>\u5982\u679c\u4e0b\u4e00\u4e2a\u8109\u51b2\u63d0\u524d\u5f00\u59cb\uff0c\u6b63\u5411\u4f0f\u79d2\u6ca1\u6709\u88ab\u64a4\u56de\uff0c\u78c1\u901a\u4f1a\u9010\u5468\u671f\u504f\u79fb\u3002\u8f93\u51fa\u53cd\u9988\u751a\u81f3\u53ef\u80fd\u628a\u6389\u538b\u7406\u89e3\u4e3a\u9700\u8981\u66f4\u5927\u5360\u7a7a\u6bd4\uff0c\u52a0\u901f\u8fdb\u5165\u5931\u63a7\u3002\u6700\u5927\u5360\u7a7a\u6bd4\u9650\u5236\u3001\u8f6f\u542f\u52a8\u548c\u6b20\u538b\u5904\u7406\u5fc5\u987b\u4e0e\u590d\u4f4d\u80fd\u529b\u4e00\u81f4\u3002<\/p>\n<p>\u771f\u5b9e\u78c1\u82af\u6709\u5269\u78c1\uff0c\u590d\u4f4d\u662f\u8ba9\u78c1\u72b6\u6001\u56de\u5230\u53ef\u91cd\u590d\u8d77\u70b9\uff0c\u4e0d\u5e94\u7b80\u5355\u5ba3\u79f0\u6bcf\u5468\u671f\u7cbe\u786e\u56de\u5230B=0\u3002\u94c1\u6c27\u4f53\u6750\u6599\u3001\u78c1\u6ede\u3001\u88c5\u914d\u548c\u6e29\u5ea6\u90fd\u4f1a\u5f71\u54cd\u7edd\u5bf9B\u8d77\u70b9\uff0c\u8bbe\u8ba1\u5e94\u5bf9\u5cf0\u503c\u548c\u53ef\u7528\u6446\u5e45\u7559\u4f59\u91cf\u3002<\/p>\n<h2 id=\"_5\">\u4e03\u3001\u53cc\u7ba1\u6b63\u6fc0\uff1a\u4e24\u4e2a\u7ba1\u540c\u65f6\u5f00\uff0c\u4e0d\u662f\u534a\u6865\u4ea4\u66ff\u5f00<\/h2>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-05-two-switch.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" style=\"display:block;max-width:100%;height:auto;margin:26px auto\" loading=\"lazy\" alt=\"\u53cc\u7ba1\u6b63\u6fc0\u62d3\u6251\u4e0e\u4e24\u4e2a\u590d\u4f4d\u4e8c\u6781\u7ba1\u7684\u65b9\u5411\" data-original=\"https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-05-two-switch.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<h3 id=\"71\">7.1 \u5f00\u5173\u548c\u7ed5\u7ec4\u7684\u4f4d\u7f6e<\/h3>\n<p>\u4e0a\u7ba1QH\u4f4d\u4e8e\u8f93\u5165\u6b63\u7aef\u548c\u521d\u7ea7\u4e0a\u7aefA\u4e4b\u95f4\uff0c\u4e0b\u7ba1QL\u4f4d\u4e8e\u521d\u7ea7\u4e0b\u7aefB\u548c\u70ed\u5730\u4e4b\u95f4\u3002\u4e24\u7ba1\u540c\u65f6\u5bfc\u901a\uff0c\u521d\u7ea7\u5f97\u5230\u8fd1\u4f3c\u5b8c\u6574Vin\uff0c\u6b21\u7ea7\u7535\u8def\u4ecd\u662fDF\u3001DW\u3001Lo\u548cCout\u3002\u5b83\u6ca1\u6709\u901a\u8fc7\u4e24\u7ba1\u4ea4\u66ff\u7ed9\u521d\u7ea7\u65bd\u52a0\u6b63\u8d1f\u7535\u538b\uff0c\u56e0\u6b64\u4e0d\u662f\u534a\u6865\u3002<\/p>\n<p>\u590d\u4f4d\u4e8c\u6781\u7ba1DA\u4ece\u70ed\u5730\u6307\u5411A\uff0cDB\u4eceB\u6307\u5411\u8f93\u5165\u6b63\u7aef\u3002\u4e24\u7ba1\u5173\u65ad\u540e\uff0c\u52b1\u78c1\u7535\u6d41\u7531B\u7ecfDB\u6d41\u5411\u6bcd\u7ebf\uff0c\u518d\u4ece\u6bcd\u7ebf\u8d1f\u7aef\u7ecfDA\u56de\u5230A\uff0c\u4f7f\u521d\u7ea7\u627f\u53d7\u7ea6\u2212Vin\uff0c\u52b1\u78c1\u80fd\u91cf\u56de\u9001\u8f93\u5165\u3002<\/p>\n<h3 id=\"72-vin\">7.2 \u4e3a\u4ec0\u4e48\u6bcf\u53ea\u7ba1\u7ea6\u627f\u53d7Vin<\/h3>\n<p>\u590d\u4f4d\u65f6A\u88ab\u94b3\u5230\u7565\u4f4e\u4e8e\u5730\uff0cB\u88ab\u94b3\u5230\u7565\u9ad8\u4e8e\u8f93\u5165\u6b63\u7aef\u3002QH\u4e0a\u4e0b\u4e24\u7aef\u5dee\u7ea6\u4e3aVin\uff0cQL\u4e24\u7aef\u5dee\u4e5f\u7ea6\u4e3aVin\uff0c\u800c\u4e0d\u662f\u6bcf\u7ba1\u81ea\u52a8\u5747\u5206\u67d0\u4e2a\u6d6e\u52a8\u603b\u538b\u3002\u4e24\u53ea\u590d\u4f4d\u4e8c\u6781\u7ba1\u63d0\u4f9b\u4e86\u5404\u81ea\u53d7\u63a7\u94b3\u4f4d\u53c2\u8003\u3002<\/p>\n<p>\u5b9e\u9645\u6bcf\u7ba1\u4ecd\u53ef\u80fd\u6709\u5c40\u90e8\u5bc4\u751f\u5c16\u5cf0\u3001\u4e8c\u6781\u7ba1\u52a8\u6001\u548c\u5173\u65ad\u4e0d\u540c\u6b65\u5e94\u529b\u3002\u53cc\u7ba1\u964d\u4f4e\u7406\u60f3\u8010\u538b\u4e0d\u4ee3\u8868\u53d6\u6d88\u6240\u6709\u5438\u6536\u548c\u6d4b\u8bd5\uff0c\u4e5f\u4e0d\u80fd\u7528\u201c\u4e24\u7ba1\u4e32\u8054\uff0c\u6240\u4ee5\u968f\u4fbf\u5404\u9009\u4e00\u534a\u8010\u538b\u201d\u7684\u903b\u8f91\u66ff\u4ee3\u5206\u6790\u3002<\/p>\n<h3 id=\"73\">7.3 \u5360\u7a7a\u6bd4\u4ecd\u9700\u8981\u590d\u4f4d\u65f6\u95f4<\/h3>\n<p>\u53cc\u7ba1\u6b63\u6fc0\u6b63\u5411\u548c\u590d\u4f4d\u7535\u538b\u5e45\u503c\u8fd1\u4f3c\u76f8\u7b49\uff0c\u6240\u4ee5\u7406\u60f3\u590d\u4f4d\u65f6\u95f4\u8fd1\u4f3c\u7b49\u4e8e\u5bfc\u901a\u65f6\u95f4\uff0cD\u4ecd\u5e94\u5c0f\u4e8e0.5\u5e76\u7559\u88d5\u91cf\u3002\u5b83\u53d6\u6d88\u4e13\u7528\u590d\u4f4d\u7ed5\u7ec4\uff0c\u4f46\u6ca1\u6709\u53d6\u6d88\u4e3b\u78c1\u901a\u7684\u4f0f\u79d2\u5e73\u8861\u8981\u6c42\u3002<\/p>\n<p>\u4e24\u7ba1\u9a71\u52a8\u5fc5\u987b\u5c3d\u91cf\u540c\u6b65\u3002\u82e5\u4e00\u7ba1\u5148\u5173\uff0c\u53e6\u4e00\u7ba1\u7ee7\u7eed\u5bfc\u901a\u4e00\u6bb5\u65f6\u95f4\uff0c\u4f1a\u6539\u53d8\u7aef\u70b9\u94b3\u4f4d\u548c\u6362\u6d41\u3002\u9ad8\u8fb9\u7ba1\u7684VGS\u5fc5\u987b\u76f8\u5bf9\u4e8e\u5176\u6e90\u6781\u6d4b\u91cf\uff0c\u4e0d\u80fd\u4ee5\u70ed\u5730\u4ee3\u66ff\uff1b\u9ad8\u8fb9\u9a71\u52a8\u4f9b\u7535\u548c\u9694\u79bb\u662f\u6bd4\u5355\u7ba1\u66f4\u591a\u7684\u8bbe\u8ba1\u5de5\u4f5c\u3002<\/p>\n<h3 id=\"74\">7.4 \u53cc\u7ba1\u6b63\u6fc0\u548c\u53cc\u7ba1\u53cd\u6fc0\u4e5f\u4e0d\u540c<\/h3>\n<p>\u4e24\u8005\u53ef\u80fd\u90fd\u6709\u4e24\u4e2a\u540c\u65f6\u5f00\u5173\u7684\u521d\u7ea7\u5f00\u5173\u548c\u56de\u9988\u4e8c\u6781\u7ba1\uff0c\u4f46\u6b21\u7ea7\u6781\u6027\u4e0e\u8f93\u51fa\u50a8\u80fd\u65b9\u5f0f\u4e0d\u540c\u3002\u53cc\u7ba1\u6b63\u6fc0\u5bfc\u901a\u9001\u80fd\u5e76\u7531Lo\u7eed\u6d41\uff1b\u53cc\u7ba1\u53cd\u6fc0\u5bfc\u901a\u50a8\u80fd\u3001\u5173\u65ad\u7531\u6b21\u7ea7\u91ca\u653e\u3002\u5224\u65ad\u62d3\u6251\u5e94\u770b\u529f\u7387\u8def\u5f84\uff0c\u800c\u4e0d\u662f\u6570MOSFET\u6570\u91cf\u3002<\/p>\n<h2 id=\"rcd\">\u516b\u3001\u5176\u4ed6\u590d\u4f4d\u65b9\u5f0f\uff1aRCD\u3001\u6709\u6e90\u94b3\u4f4d\u548c\u8c10\u632f\u590d\u4f4d<\/h2>\n<h3 id=\"81-rcd\">8.1 RCD\u590d\u4f4d\u4e0e\u6f0f\u611f\u94b3\u4f4d\u4e0d\u80fd\u53ea\u770b\u540d\u5b57<\/h3>\n<p>\u67d0\u4e9b\u5355\u7ba1\u6b63\u6fc0\u7528RCD\u7f51\u7edc\u627f\u62c5\u52b1\u78c1\u590d\u4f4d\uff0c\u53e6\u4e00\u4e9b\u6b63\u6fc0\u5df2\u7ecf\u6709\u590d\u4f4d\u7ed5\u7ec4\uff0cRCD\u53ea\u5904\u7406\u6f0f\u611f\u5c16\u5cf0\u3002\u524d\u8005\u5fc5\u987b\u8fde\u7eed\u5438\u6536\u6bcf\u5468\u671f\u52b1\u78c1\u80fd\u91cf\u5e76\u5efa\u7acb\u8db3\u591f\u8d1f\u4f0f\u79d2\uff0c\u540e\u8005\u4e0d\u80fd\u65e0\u6761\u4ef6\u66ff\u4ee3\u590d\u4f4d\u7ed5\u7ec4\u3002<\/p>\n<p>\u9605\u8bfb\u539f\u7406\u56fe\u65f6\u5e94\u8ffd\u8e2a\u52b1\u78c1\u7535\u6d41\u5728\u5173\u65ad\u540e\u7a76\u7adf\u6d41\u5230\u54ea\u91cc\u3001\u521d\u7ea7\u8d1f\u7535\u538b\u6301\u7eed\u591a\u4e45\u3002\u5982\u679c\u67d0\u53ea\u94b3\u4f4d\u53ea\u5728\u6570\u5341\u7eb3\u79d2\u5c16\u5cf0\u671f\u95f4\u5bfc\u901a\uff0c\u800c\u52b1\u78c1\u590d\u4f4d\u9700\u8981\u6570\u5fae\u79d2\uff0c\u5b83\u5f88\u53ef\u80fd\u53ea\u5728\u5904\u7406\u6f0f\u611f\u3002<\/p>\n<h3 id=\"82\">8.2 \u6709\u6e90\u94b3\u4f4d\u7684\u57fa\u672c\u5173\u7cfb<\/h3>\n<p>\u6709\u6e90\u94b3\u4f4d\u589e\u52a0\u8f85\u52a9\u5f00\u5173\u548c\u7535\u5bb9\uff0c\u5728\u5173\u65ad\u533a\u95f4\u5efa\u7acb\u53d7\u63a7\u590d\u4f4d\u7535\u538b\uff0c\u5e76\u5229\u7528\u8c10\u632f\u6539\u5584\u5f00\u5173\u6761\u4ef6\u3002\u5047\u8bbe\u590d\u4f4d\u4f5c\u7528\u8986\u76d6\u8fd1\u4f3c\u6574\u4e2a\u5173\u65ad\u533a\u95f4\uff0c\u53ef\u7531\u4f0f\u79d2\u5f97\u5230\uff1a<\/p>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>|V<sub>reset<\/sub>|\u2248V<sub>in<\/sub>D\/(1\u2212D)<\/strong><\/p>\n<p>\u5e38\u89c1\u7ed3\u6784\u4e2d\u4e3b\u5f00\u5173\u5e94\u529b\u91cf\u7ea7\u4e0eVin\/(1\u2212D)\u6709\u5173\uff0c\u4f46\u94b3\u4f4d\u7535\u5bb9\u4e24\u7aef\u7535\u538b\u53d6\u51b3\u4e8e\u9ad8\u8fb9\u3001\u4f4e\u8fb9\u8fde\u63a5\u548c\u5b9a\u4e49\uff0c\u4e0d\u80fd\u628a\u540c\u4e00\u516c\u5f0f\u76f4\u63a5\u5957\u5230\u6240\u6709\u7535\u5bb9\u4e0a\u3002D\u63d0\u9ad8\u4f1a\u4f7f\u590d\u4f4d\u7535\u538b\u4e0e\u5e94\u529b\u5feb\u901f\u4e0a\u5347\u3002<\/p>\n<h3 id=\"83-50100\">8.3 \u53ef\u4ee5\u8d85\u8fc750%\uff0c\u4e0d\u7b49\u4e8e\u53ef\u4ee5\u4efb\u610f\u63a5\u8fd1100%<\/h3>\n<p>\u6709\u6e90\u94b3\u4f4d\u7684\u590d\u4f4d\u7535\u538b\u53ef\u4ee5\u81ea\u9002\u5e94\uff0c\u56e0\u6b64\u53ef\u7a81\u7834\u7b49\u531d\u590d\u4f4d\u768450%\u9650\u5236\uff1b\u4f46\u5668\u4ef6\u8010\u538b\u3001\u94b3\u4f4d\u7535\u5bb9\u3001\u8c10\u632f\u80fd\u91cf\u3001\u6700\u77ed\u5173\u65ad\u548c\u63a7\u5236\u5668DMAX\u4ecd\u7136\u9650\u5236\u5de5\u4f5c\u3002\u4f4e\u8f93\u5165\u542f\u52a8\u3001\u8f7b\u8f7d\u4e0e\u8fc7\u6e21\u5c24\u5176\u9700\u8981\u9a8c\u8bc1\u3002<\/p>\n<p>\u96f6\u7535\u538b\u5f00\u901a\u4f9d\u8d56\u8db3\u591f\u7684\u6362\u6d41\u80fd\u91cf\u548c\u6b63\u786e\u6b7b\u533a\uff0c\u4e0d\u662f\u7528\u4e86\u6709\u6e90\u94b3\u4f4d\u5c31\u5168\u8303\u56f4\u81ea\u52a8ZVS\u3002\u8f85\u52a9\u5f00\u5173\u7684\u4f53\u4e8c\u6781\u7ba1\u65b9\u5411\u3001\u9a71\u52a8\u6781\u6027\u3001\u65f6\u5e8f\u548c\u5bb9\u6027\u8d1f\u8f7d\u5fc5\u987b\u6309\u5177\u4f53\u65b9\u6848\u8bbe\u8ba1\uff0c\u4e0d\u80fd\u5728\u666e\u901a\u5355\u7ba1\u6b63\u6fc0\u8fb9\u4e0a\u968f\u610f\u52a0\u7ba1\u6539\u88c5\u3002<\/p>\n<h3 id=\"84\">8.4 \u8c10\u632f\u590d\u4f4d<\/h3>\n<p>\u8c10\u632f\u590d\u4f4d\u5229\u7528\u52b1\u78c1\u7535\u611f\u3001\u5bc4\u751f\u6216\u5916\u52a0\u7535\u5bb9\u8ba9\u521d\u7ea7\u5728\u5173\u65ad\u540e\u51fa\u73b0\u590d\u4f4d\u7535\u538b\u6ce2\u5f62\u3002\u5b83\u53ef\u80fd\u51cf\u5c11\u67d0\u4e9b\u5668\u4ef6\uff0c\u5374\u4f7f\u590d\u4f4d\u5cf0\u503c\u548c\u65f6\u95f4\u4f9d\u8d56\u7535\u611f\u3001\u7535\u5bb9\u3001\u8d1f\u8f7d\u53ca\u8f93\u5165\u3002\u4ecd\u5e94\u5bf9\u5b9e\u9645\u8d1f\u5411\u7535\u538b\u79ef\u5206\uff0c\u800c\u4e0d\u662f\u770b\u5230\u6f0f\u6781\u632f\u94c3\u5c31\u8ba4\u4e3a\u6bcf\u5468\u671f\u5df2\u590d\u4f4d\u3002<\/p>\n<h3 id=\"85\">8.5 \u5982\u4f55\u9009\u62e9<\/h3>\n<div style=\"overflow-x:auto;margin:20px 0\">\n<table style=\"width:100%;border-collapse:collapse;font-size:0.94em\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d4dce6;padding:10px;text-align:left;background:#eef4f9\">\u7ed3\u6784<\/th>\n<th style=\"border:1px solid #d4dce6;padding:10px;text-align:left;background:#eef4f9\">\u4f18\u70b9<\/th>\n<th style=\"border:1px solid #d4dce6;padding:10px;text-align:left;background:#eef4f9\">\u4e3b\u8981\u4ee3\u4ef7<\/th>\n<th style=\"border:1px solid #d4dce6;padding:10px;text-align:left;background:#eef4f9\">\u91cd\u70b9\u68c0\u67e5<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u5355\u7ba1\u590d\u4f4d\u7ed5\u7ec4<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u9a71\u52a8\u7b80\u5355\u3001\u80fd\u91cf\u56de\u9988<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u9ad8\u6f0f\u6781\u5e73\u53f0\u3001\u591a\u7ed5\u7ec4<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u590d\u4f4d\u6bd4\u3001\u6f0f\u611f\u3001\u531d\u5411<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u53cc\u7ba1\u6b63\u6fc0<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6bcf\u7ba1\u5e73\u53f0\u7ea6Vin\u3001\u65e0\u590d\u4f4d\u7ed5\u7ec4<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4e24\u7ba1\u53ca\u9ad8\u8fb9\u9a71\u52a8<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u540c\u6b65\u4e0e\u94b3\u4f4d\u56de\u8def<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">RCD\u590d\u4f4d<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u7ed3\u6784\u76f4\u89c2<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u590d\u4f4d\u8017\u80fd\u4e0e\u70ed<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u603b\u52b1\u78c1\u80fd\u91cf\u53ca\u8d1f\u4f0f\u79d2<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6709\u6e90\u94b3\u4f4d<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u590d\u4f4d\u53ef\u63a7\u3001\u6f5c\u5728\u4f4e\u635f\u8017<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u9a71\u52a8\u548c\u8c10\u632f\u66f4\u590d\u6742<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6b7b\u533a\u3001\u8f7b\u8f7d\u3001\u5e94\u529b<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u8c10\u632f\u590d\u4f4d<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u53ef\u7b80\u5316\u90e8\u5206\u5668\u4ef6<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u53c2\u6570\u4e0e\u6a21\u5f0f\u654f\u611f<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u5cf0\u503c\u3001\u65f6\u95f4\u548c\u516c\u5dee<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2 id=\"_6\">\u4e5d\u3001\u53d8\u538b\u5668\u8bbe\u8ba1\uff1a\u5148\u4f0f\u79d2\uff0c\u518d\u52b1\u78c1\u7535\u611f\u4e0e\u7535\u6d41<\/h2>\n<h3 id=\"91\">9.1 \u78c1\u5bc6\u53d8\u5316\u91cf<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>\u0394B\u2248V<sub>in<\/sub>t<sub>on<\/sub>\/(N<sub>p<\/sub>A<sub>e<\/sub>)\uff1b\u3000N<sub>p<\/sub>\u2265V<sub>in<\/sub>t<sub>on,max<\/sub>\/(A<sub>min<\/sub>\u0394B<sub>allow<\/sub>)<\/strong><\/p>\n<p>\u6b63\u5e38\u95ed\u73afCCM\u4e0bD\u53ef\u80fd\u968fVin\u53cd\u6bd4\u53d8\u5316\uff0c\u4f7fVinD\u8fd1\u4f3c\u6052\u5b9a\uff0c\u4f46\u542f\u52a8\u3001\u9650\u6d41\u3001\u6700\u4f4e\u9891\u7387\u4e0e\u63a7\u5236\u5931\u5e38\u672a\u5fc5\u5982\u6b64\u3002\u56e0\u6b64\u5e94\u5206\u522b\u68c0\u67e5\u6b63\u5e38\u53d7\u63a7\u70b9\u3001\u786c\u4ef6\u6700\u5927\u8109\u5bbd\u548c\u5f02\u5e38\u4fdd\u62a4\u5b9e\u9645\u6ce2\u5f62\uff0c\u4e0d\u80fd\u628a\u6700\u4f4e\u8f93\u5165\u6b63\u5e38\u4f0f\u79d2\u5f53\u4f5c\u6240\u6709\u5de5\u51b5\u4e0a\u754c\u3002<\/p>\n<h3 id=\"92\">9.2 \u4e3b\u78c1\u901a\u4e0d\u6309\u603b\u521d\u7ea7\u7535\u6d41\u8ba1\u7b97<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>i<sub>p<\/sub>\u2248k i<sub>L<\/sub>+i<sub>m<\/sub>\uff1b\u3000\u0394I<sub>m<\/sub>\u2248V<sub>in<\/sub>D\/(L<sub>m<\/sub>f<sub>s<\/sub>)<\/strong><\/p>\n<p>\u521d\u6b21\u7ea7\u8d1f\u8f7d\u5b89\u531d\u4e3b\u8981\u62b5\u6d88\uff0c\u5269\u4e0b\u52b1\u78c1\u5b89\u531d\u5efa\u7acb\u4e3b\u78c1\u901a\u3002\u628a\u542b\u6709\u56db\u5b89\u8d1f\u8f7d\u53cd\u5c04\u7535\u6d41\u7684Ip\u5168\u4ee3\u5165LmI\/(NpAe)\uff0c\u53ef\u80fd\u7b97\u51fa\u8352\u5510\u7684\u5927\u78c1\u5bc6\u3002\u52b1\u78c1\u7535\u611f\u662f\u5e76\u8054\u652f\u8def\uff0c\u4e0d\u662f\u4e32\u8054\u627f\u53d7\u6240\u6709\u529f\u7387\u7535\u6d41\u7684\u50a8\u80fd\u7535\u611f\u3002<\/p>\n<h3 id=\"93\">9.3 \u6b63\u6fc0\u78c1\u82af\u901a\u5e38\u4e0d\u9700\u8981\u50cf\u53cd\u6fc0\u90a3\u6837\u7684\u5927\u6c14\u9699<\/h3>\n<p>\u6b63\u6fc0\u5e0c\u671b\u8f83\u5927\u7684Lm\u964d\u4f4e\u52b1\u78c1\u7535\u6d41\uff0c\u56e0\u6b64\u666e\u901a\u4f20\u80fd\u94c1\u6c27\u4f53\u78c1\u82af\u901a\u5e38\u91c7\u7528\u65e0\u8bbe\u8ba1\u5927\u6c14\u9699\u6216\u53d7\u63a7\u5c0f\u6c14\u9699\u3002\u88c5\u914d\u95f4\u9699\u3001\u6750\u6599\u548c\u7ed3\u6784\u4ecd\u4f1a\u5f71\u54cdAL\uff1b\u201c\u65e0\u6c14\u9699\u201d\u5e76\u4e0d\u4ee3\u8868\u5b9e\u9645\u78c1\u963b\u4e3a\u96f6\u6216\u65e0\u9650\u7535\u611f\u3002<\/p>\n<p>\u8f93\u51fa\u7535\u611fLo\u5219\u9700\u8981\u50a8\u80fd\uff0c\u5f80\u5f80\u91c7\u7528\u6709\u6c14\u9699\u6216\u5206\u5e03\u6c14\u9699\u7ed3\u6784\u3002\u4e24\u4e2a\u78c1\u4ef6\u5916\u89c2\u76f8\u4f3c\uff0c\u4f46\u8bbe\u8ba1\u4efb\u52a1\u76f8\u53cd\uff1a\u53d8\u538b\u5668\u5e0c\u671b\u4f4e\u52b1\u78c1\u50a8\u80fd\uff0cLo\u5fc5\u987b\u627f\u53d7\u8d1f\u8f7d\u7535\u6d41\u4e0b\u7684\u50a8\u80fd\u4e0e\u504f\u7f6e\u3002\u4e0d\u8981\u628a\u53cd\u6fc0\u78c1\u82af\u76f4\u63a5\u6362\u8fdb\u6b63\u6fc0\u5e76\u671f\u5f85\u52b1\u78c1\u7535\u6d41\u81ea\u52a8\u5408\u9002\u3002<\/p>\n<h3 id=\"94-al\">9.4 AL\u4e0e\u7535\u611f<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>L<sub>m<\/sub>=A<sub>L<\/sub>N<sub>p<\/sub>\u00b2<\/strong><\/p>\n<p>AL\u5e94\u6765\u81ea\u5b9e\u9645\u78c1\u82af\u3001\u6750\u6599\u548c\u88c5\u914d\uff0c\u4e0d\u662f\u5916\u5f62\u7cfb\u5217\u7684\u56fa\u5b9a\u6570\u5b57\u3002\u82e5\u8ba1\u7b97\u76ee\u6807Lm\u8fc7\u9ad8\u800c\u5b9e\u9645AL\u4e0d\u8db3\uff0c\u8981\u8c03\u6574\u78c1\u82af\u6216\u531d\u6570\uff0c\u5e76\u68c0\u67e5\u7a97\u53e3\u3001\u94dc\u635f\u548c\u531d\u6bd4\uff1b\u4e0d\u8981\u53ea\u5728\u8868\u683c\u91cc\u586b\u4e00\u4e2a\u6f02\u4eae\u7684Lm\u3002<\/p>\n<h3 id=\"95\">9.5 \u4e3b\u78c1\u5bc6\u6446\u5e45\u4e0e\u7edd\u5bf9\u5cf0\u503c<\/h3>\n<p>\u6b63\u6fc0\u5355\u5411\u5bfc\u901a\u4e0e\u590d\u4f4d\u901a\u5e38\u4f7f\u78c1\u5bc6\u5728\u4e00\u4fa7\u6216\u5e26\u504f\u7f6e\u7684\u533a\u95f4\u53d8\u5316\uff0c\u0394B\u4e0d\u5fc5\u7b49\u4e8e2Bpk\u3002\u6750\u6599\u5269\u78c1\u3001\u590d\u4f4d\u65b9\u5f0f\u548c\u6709\u6e90\u94b3\u4f4d\u76f4\u6d41\u504f\u7f6e\u4f1a\u6539\u53d8\u8d77\u70b9\u3002\u635f\u8017\u8ba1\u7b97\u4e0e\u9971\u548c\u68c0\u67e5\u9700\u8981\u5206\u522b\u5339\u914d\u0394B\u3001\u7edd\u5bf9\u5cf0\u503c\u548c\u6ce2\u5f62\u3002<\/p>\n<h2 id=\"_7\">\u5341\u3001\u8f93\u51fa\u7535\u611f\u8ba1\u7b97\uff1a\u6b63\u6fc0\u7684\u4e3b\u8981\u50a8\u80fd\u5143\u4ef6<\/h2>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-06-inductor-waveforms.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" style=\"display:block;max-width:100%;height:auto;margin:26px auto\" loading=\"lazy\" alt=\"\u8f93\u51fa\u7535\u611f\u7535\u538b\u3001\u7535\u6d41\u3001\u6574\u6d41\u4e0e\u7eed\u6d41\u9636\u6bb5\" data-original=\"https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-06-inductor-waveforms.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<h3 id=\"101\">10.1 \u5148\u9009\u7eb9\u6ce2\u76ee\u6807<\/h3>\n<p>\u53ef\u5148\u8ba9\u989d\u5b9a\u8d1f\u8f7d\u4e0b\u5cf0\u5cf0\u7eb9\u6ce2\u4e3a\u5e73\u5747\u7535\u6d41\u7684\u4e00\u5b9a\u6bd4\u4f8b\uff0c\u518d\u6839\u636e\u4f53\u79ef\u3001\u52a8\u6001\u3001\u635f\u8017\u548c\u8f7b\u8f7d\u6a21\u5f0f\u8fed\u4ee3\u3002\u8f83\u5c0f\u7eb9\u6ce2\u901a\u5e38\u9700\u8981\u8f83\u5927\u7535\u611f\uff0c\u964d\u4f4e\u5cf0\u503c\u548c\u7535\u5bb9\u5e94\u529b\uff0c\u5374\u53ef\u80fd\u589e\u52a0\u4f53\u79ef\u3001\u94dc\u963b\u4e0e\u63a7\u5236\u54cd\u5e94\u9650\u5236\u3002\u6ca1\u6709\u9002\u7528\u4e8e\u6240\u6709\u4ea7\u54c1\u7684\u56fa\u5b9a\u767e\u5206\u6bd4\u3002<\/p>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>\u0394I<sub>L<\/sub>=(kV<sub>in<\/sub>\u2212V<sub>F<\/sub>\u2212V<sub>o<\/sub>)D\/(L<sub>o<\/sub>f<sub>s<\/sub>)=(V<sub>o<\/sub>+V<sub>W<\/sub>)(1\u2212D)\/(L<sub>o<\/sub>f<sub>s<\/sub>)<\/strong><\/p>\n<p>\u4e24\u5f0f\u5e94\u5728\u540c\u4e00\u7a33\u6001\u6a21\u578b\u4e0b\u76f8\u7b49\uff0c\u662f\u72ec\u7acb\u68c0\u67e5\u7684\u597d\u65b9\u6cd5\u3002\u5728\u6052\u8f93\u51fa\u3001\u56fa\u5b9a\u9891\u7387\u3001\u538b\u964d\u8fd1\u4f3c\u56fa\u5b9a\u65f6\uff0c\u9ad8\u8f93\u5165D\u66f4\u5c0f\u3001\u5173\u65ad\u65f6\u95f4\u66f4\u957f\uff0c\u7eb9\u6ce2\u5f80\u5f80\u53cd\u800c\u66f4\u5927\u3002\u4e0d\u80fd\u4e60\u60ef\u6027\u628a\u6700\u4f4e\u8f93\u5165\u5f53\u4f5c\u6240\u6709\u7535\u6d41\u6307\u6807\u7684\u6700\u574f\u70b9\u3002<\/p>\n<h3 id=\"102-rms\">10.2 \u5cf0\u8c37\u4e0eRMS<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>I<sub>L,pk<\/sub>=I<sub>o<\/sub>+\u0394I<sub>L<\/sub>\/2\uff1b\u3000I<sub>L,val<\/sub>=I<sub>o<\/sub>\u2212\u0394I<sub>L<\/sub>\/2\uff1b\u3000I<sub>L,rms<\/sub>=\u221a(I<sub>o<\/sub>\u00b2+\u0394I<sub>L<\/sub>\u00b2\/12)<\/strong><\/p>\n<p>CCM\u8981\u6c42\u8c37\u503c\u4e3a\u6b63\u3002Io\u2248\u0394IL\/2\u662f\u7406\u60f3\u6a21\u5f0f\u8fb9\u754c\uff0c\u8d1f\u8f7d\u66f4\u4f4e\u65f6\u5e94\u91cd\u65b0\u4f7f\u7528DCM\u5173\u7cfb\u3002\u7535\u611f\u9971\u548c\u7535\u6d41\u8981\u8986\u76d6\u4fdd\u62a4\u524d\u7684\u6700\u5927\u771f\u5b9e\u7535\u6d41\uff0c\u4e0d\u662f\u53ea\u8986\u76d6\u6b63\u5e38Io\uff1b\u6e29\u5347\u80fd\u529b\u5219\u4e3b\u8981\u7531RMS\u4e0e\u4ea4\u6d41\u635f\u8017\u51b3\u5b9a\u3002<\/p>\n<h3 id=\"103\">10.3 \u8f93\u51fa\u7535\u611f\u7684\u50a8\u80fd<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>E<sub>L,pk<\/sub>=\u00bdL<sub>o<\/sub>I<sub>L,pk<\/sub>\u00b2<\/strong><\/p>\n<p>\u7535\u611f\u4e0d\u4ec5\u8981\u627f\u53d7\u6bcf\u5468\u671f\u7eb9\u6ce2\u80fd\u91cf\uff0c\u8fd8\u4e00\u76f4\u5e26\u7740\u8d1f\u8f7d\u76f4\u6d41\u504f\u7f6e\u3002\u53ea\u6309\u0394I\u505a\u78c1\u82af\u9971\u548c\u68c0\u67e5\u4f1a\u6f0f\u6389\u4e3b\u8981\u78c1\u5bc6\u3002\u78c1\u82af\u6750\u6599\u53ef\u80fd\u968f\u504f\u7f6e\u7f13\u6162\u964d\u611f\u6216\u51fa\u73b0\u66f4\u9661\u975e\u7ebf\u6027\uff0c\u5382\u5bb6\u9971\u548c\u5b9a\u4e49\u4e5f\u53ef\u80fd\u662f\u7535\u611f\u4e0b\u964d\u67d0\u4e2a\u767e\u5206\u6bd4\uff0c\u9009\u578b\u65f6\u8981\u770b\u66f2\u7ebf\u3002<\/p>\n<h3 id=\"104\">10.4 \u78c1\u82af\u531d\u6570\u4e0e\u6c14\u9699<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>B<sub>pk,linear<\/sub>\u2248L<sub>o<\/sub>I<sub>L,pk<\/sub>\/(N<sub>L<\/sub>A<sub>e,L<\/sub>)\uff1b\u3000A<sub>L,L<\/sub>=L<sub>o<\/sub>\/N<sub>L<\/sub>\u00b2<\/strong><\/p>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>g<sub>eff<\/sub>\u2248\u03bc\u2080N<sub>L<\/sub>\u00b2A<sub>e,L<\/sub>\/L<sub>o<\/sub><\/strong><\/p>\n<p>\u6c14\u9699\u8fd1\u4f3c\u5047\u5b9a\u6c14\u9699\u78c1\u963b\u5360\u4e3b\u5bfc\uff0c\u5ffd\u7565\u8fb9\u7f18\u78c1\u573a\u548c\u6709\u9650\u78c1\u82af\u78c1\u963b\u3002\u5b83\u7528\u4e8e\u4f30\u91cf\u4e0e\u9009AL\uff0c\u4e0d\u662f\u6bcf\u4e2a\u63a5\u9762\u90fd\u57ab\u540c\u4e00\u539a\u5ea6\u7684\u65bd\u5de5\u6307\u4ee4\u3002\u6700\u540e\u8981\u5728\u88c5\u914d\u72b6\u6001\u6d4b\u7535\u611f\uff0c\u5e76\u6838\u5bf9\u5927\u7535\u6d41\u504f\u7f6e\u3001\u6e29\u5ea6\u548c\u70ed\u70b9\u3002<\/p>\n<h3 id=\"105-dcr\">10.5 \u7535\u611fDCR\u4e0e\u52a8\u6001<\/h3>\n<p>Lo\u7684\u7535\u963b\u957f\u671f\u627f\u53d7\u63a5\u8fd1Io\u7684\u7535\u6d41\uff0c\u4f4e\u538b\u8f93\u51fa\u5c24\u5176\u654f\u611f\u3002\u4e94\u4f0f\u4e24\u5b89\u65f6\uff0c100 m\u03a9\u5c31\u4ea7\u751f\u7ea60.4 W\u53ca0.2 V\u538b\u964d\u3002\u94dc\u9762\u79ef\u3001\u5e73\u5747\u531d\u957f\u548c\u5f15\u7ebf\u90fd\u8981\u8ba1\u7b97\uff0c\u4e0d\u80fd\u56e0\u4e3a\u53d8\u538b\u5668\u4e0d\u70ed\u5c31\u5ffd\u7565\u8f93\u51fa\u7535\u611f\u3002<\/p>\n<p>\u8d1f\u8f7d\u7a81\u589e\u65f6\u7535\u611f\u7535\u6d41\u4e0d\u80fd\u77ac\u95f4\u589e\u52a0\uff0c\u8f93\u51fa\u7535\u5bb9\u5148\u8865\u5dee\uff1b\u8d1f\u8f7d\u7a81\u7136\u6d88\u5931\u65f6\u7535\u611f\u80fd\u91cf\u8981\u88ab\u7535\u5bb9\u6216\u5176\u4ed6\u8def\u5f84\u5438\u6536\u3002Lo\u9009\u5f97\u5f88\u5927\u53ef\u80fd\u4f7f\u7eb9\u6ce2\u5c0f\uff0c\u5374\u589e\u52a0\u8d1f\u8f7d\u5378\u8f7d\u8fc7\u51b2\u548c\u52a8\u6001\u8865\u507f\u96be\u5ea6\uff0c\u5fc5\u987b\u4e00\u8d77\u8bc4\u4f30\u3002<\/p>\n<h2 id=\"_8\">\u5341\u4e00\u3001\u521d\u6b21\u7ea7\u548c\u6574\u6d41\u5668\u7535\u6d41\uff1a\u628a\u4e00\u4e2a\u5468\u671f\u79ef\u5206\u5b8c\u6574<\/h2>\n<h3 id=\"111\">11.1 \u53d8\u538b\u5668\u6b21\u7ea7\u53ea\u5728\u5bfc\u901a\u9636\u6bb5\u4f20\u80fd<\/h3>\n<p>\u8f93\u51fa\u7535\u611f\u4e00\u76f4\u6709\u7535\u6d41\uff0c\u4e0d\u4ee3\u8868\u6b21\u7ea7\u7ed5\u7ec4\u4e00\u76f4\u6d41\u8fd9\u4e2a\u7535\u6d41\u3002\u5728CCM\u4e2d\uff0c\u6b21\u7ea7\u5728\u4e3b\u5f00\u5173\u5bfc\u901a\u9636\u6bb5\u627f\u62c5\u63a5\u8fd1IL\u7684\u7535\u6d41\uff0c\u5173\u65ad\u540e\u8be5\u7535\u6d41\u8f6c\u5165DW\u3002\u5047\u8bbe\u5bfc\u901a\u9636\u6bb5\u7535\u6d41\u5728\u8c37\u503c\u548c\u5cf0\u503c\u95f4\u7ebf\u6027\u53d8\u5316\uff0c\u53ef\u4ee5\u6c42\u6b21\u7ea7RMS\uff1a<\/p>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>I<sub>s,rms<\/sub>=\u221a[D(I<sub>o<\/sub>\u00b2+\u0394I<sub>L<\/sub>\u00b2\/12)]<\/strong><\/p>\n<p>\u8fd9\u4e5f\u662fDF\u5bfc\u901a\u7535\u6d41\u7684\u5b8c\u6574\u5468\u671fRMS\u3002\u6b21\u7ea7\u7ebf\u5f84\u4e0d\u80fd\u76f4\u63a5\u6309Io\u9009\uff0c\u4e5f\u4e0d\u80fd\u53ea\u7528D\u4e58Io\u4f5c\u4e3a\u53d1\u70ed\u7535\u6d41\u3002IoD\u662f\u5e73\u5747\u6574\u6d41\u7535\u6d41\uff0c\u53d1\u70ed\u4ecd\u53d6\u51b3\u4e8eRMS\u4e0e\u5177\u4f53\u5bfc\u901a\u6a21\u578b\u3002<\/p>\n<h3 id=\"112\">11.2 \u4e3b\u6574\u6d41\u4e0e\u7eed\u6d41\u5404\u81ea\u5e73\u5747\u7535\u6d41<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>I<sub>DF,avg<\/sub>=DI<sub>o<\/sub>\uff1b\u3000I<sub>DW,avg<\/sub>=(1\u2212D)I<sub>o<\/sub><\/strong><\/p>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>I<sub>DW,rms<\/sub>=\u221a[(1\u2212D)(I<sub>o<\/sub>\u00b2+\u0394I<sub>L<\/sub>\u00b2\/12)]<\/strong><\/p>\n<p>\u9ad8\u8f93\u5165\u4e0bD\u66f4\u5c0f\uff0c\u7eed\u6d41\u5668\u4ef6\u5e73\u5747\u7535\u6d41\u548c\u5bfc\u901a\u65f6\u95f4\u5f80\u5f80\u66f4\u5927\uff0c\u53ef\u80fd\u6bd4DF\u66f4\u70ed\u3002\u4e24\u53ea\u5668\u4ef6\u5916\u89c2\u548c\u989d\u5b9a\u5b89\u6570\u76f8\u540c\uff0c\u4e0d\u4ee3\u8868\u5b9e\u9645\u635f\u8017\u76f8\u540c\u3002\u540c\u6b65\u6574\u6d41\u8bbe\u8ba1\u4e5f\u5e94\u5206\u522b\u8ba1\u7b97\u4e24\u53ea\u7ba1\u5b50\u7684RMS\u3001\u4f53\u4e8c\u6781\u7ba1\u4e0e\u6b7b\u533a\u635f\u8017\u3002<\/p>\n<h3 id=\"113-rms\">11.3 \u521d\u7ea7RMS\u8981\u5305\u542b\u540c\u76f8\u4e0a\u5347\u7684\u52b1\u78c1\u7535\u6d41<\/h3>\n<p>\u8bbe\u521d\u7ea7\u5bfc\u901a\u8d77\u70b9\u4e3aa=k(\u0399o\u2212\u0394IL\/2)\uff0c\u7ec8\u70b9\u4e3ab=k(\u0399o+\u0394IL\/2)+Im,pk\uff0c\u4e14\u672c\u8282\u8fd1\u4f3c\u52b1\u78c1\u4ece\u96f6\u7ebf\u6027\u589e\u52a0\uff0c\u5219\uff1a<\/p>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>I<sub>p,rms<\/sub>=\u221a[D(a\u00b2+ab+b\u00b2)\/3]<\/strong><\/p>\n<p>\u4e0d\u8981\u628a\u8d1f\u8f7dRMS\u4e0e\u52b1\u78c1RMS\u76f4\u63a5\u5e73\u65b9\u76f8\u52a0\u3002\u5b83\u4eec\u5728\u5bfc\u901a\u533a\u95f4\u540c\u76f8\u3001\u5b58\u5728\u4ea4\u53c9\u9879\uff0c\u5e76\u975e\u4e24\u4e2a\u4e92\u4e0d\u76f8\u5173\u7684\u968f\u673a\u7535\u6d41\u3002\u7528\u8d77\u7ec8\u70b9\u79ef\u5206\u7684\u68af\u5f62\u516c\u5f0f\u66f4\u76f4\u63a5\uff0c\u4e5f\u80fd\u540c\u65f6\u7ed9\u51fa\u4e3bMOSFET\u5bfc\u901a\u635f\u8017\u6240\u9700\u503c\u3002<\/p>\n<h3 id=\"114\">11.4 \u590d\u4f4d\u7ed5\u7ec4\u7684\u7535\u6d41<\/h3>\n<p>\u7b49\u531d\u590d\u4f4d\u65f6\uff0c\u590d\u4f4d\u7535\u6d41\u8fd1\u4f3c\u4eceIm,pk\u4e0b\u964d\u5230\u96f6\uff0c\u6301\u7eedD\u4e2a\u5468\u671f\uff0c\u6240\u4ee5Ir,rms\u2248Im,pk\u221a(D\/3)\u3002\u4e0d\u540c\u590d\u4f4d\u6bd4\u4e0b\u5cf0\u503c\u548c\u65f6\u95f4\u5747\u6539\u53d8\uff0c\u8981\u4ee5\u5b9e\u9645\u6ce2\u5f62\u91cd\u65b0\u79ef\u5206\u3002\u590d\u4f4d\u7ed5\u7ec4\u867d\u7136\u7535\u6d41\u5c0f\uff0c\u4ecd\u8981\u6ee1\u8db3\u8010\u538b\u3001\u7edd\u7f18\u3001\u7aef\u63a5\u4e0e\u5236\u9020\u5f3a\u5ea6\u3002<\/p>\n<p>\u5728\u672c\u6587\u590d\u4f4d\u7535\u6d41\u4ece\u5cf0\u503c\u7ebf\u6027\u4e0b\u964d\u5230\u96f6\u7684\u6a21\u578b\u4e0b\uff0c\u4e00\u822c\u590d\u4f4d\u6bd4r\u5bf9\u5e94\u5cf0\u503cIm,pk\/r\u548c\u5f52\u4e00\u5316\u590d\u4f4d\u65f6\u95f4rD\uff0c\u53ef\u4ee5\u5408\u5e76\u5199\u6210\uff1a<\/p>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>I<sub>r,rms<\/sub>=(I<sub>m,pk<\/sub>\/r)\u221a(rD\/3)=I<sub>m,pk<\/sub>\u221a[D\/(3r)]<\/strong><\/p>\n<p>\u53cc\u7ba1\u6b63\u6fc0\u5728\u590d\u4f4d\u65f6\uff0c\u4e3b\u521d\u7ea7\u7ed5\u7ec4\u672c\u8eab\u8fd8\u627f\u53d7\u8fd4\u56de\u7684\u52b1\u78c1\u7535\u6d41\u3002\u56e0\u6b64\u53d8\u538b\u5668\u521d\u7ea7\u94dc\u635f\u7684\u5b8c\u6574RMS\u5e94\u5305\u542b\u5bfc\u901a\u4f20\u80fd\u548c\u5173\u65ad\u590d\u4f4d\u4e24\u6bb5\uff1b\u6bcf\u53ea\u4e3bMOSFET\u7684\u5bfc\u901aRMS\u4ecd\u53ea\u53d6\u5404\u81ea\u5f00\u5173\u5bfc\u901a\u6bb5\u3002\u4e0d\u80fd\u628a\u67d0\u4e2a\u7535\u6d41\u503c\u4e0d\u5206\u5668\u4ef6\u5730\u7528\u904d\u6574\u5f20\u635f\u8017\u8868\u3002<\/p>\n<p>\u53cc\u7ba1\u7684\u4e24\u6bb5\u7535\u6d41\u5728\u65f6\u95f4\u4e0a\u4e92\u4e0d\u91cd\u53e0\uff0c\u6240\u4ee5\u8fd9\u4e00\u6b21\u53ef\u4ee5\u628a\u5404\u65f6\u6bb5\u7684\u5747\u65b9\u503c\u76f8\u52a0\u3002\u7b49\u5e45\u6b63\u8d1f\u521d\u7ea7\u590d\u4f4d\u3001\u590d\u4f4d\u6301\u7eed\u7ea6D\u4e2a\u5468\u671f\u65f6\uff1a<\/p>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>I<sub>Np,rms,\u53cc\u7ba1<\/sub>=\u221a[D(a\u00b2+ab+b\u00b2)\/3+DI<sub>m,pk<\/sub>\u00b2\/3]<\/strong><\/p>\n<p>\u4e94\u4f0f\u7b97\u4f8b\u5728230 V\u6bcd\u7ebf\u65f6\uff0c\u8fd9\u4e2a\u5b8c\u6574\u521d\u7ea7RMS\u7ea60.09608 A\uff0c\u800c\u6bcf\u53ea\u5f00\u5173\u7684\u5bfc\u901aRMS\u7ea60.09536 A\uff1b\u52b1\u78c1\u7535\u6d41\u8f83\u5c0f\u65f6\u5dee\u522b\u4e0d\u5927\uff0c\u4f46\u8ba1\u7b97\u5bf9\u8c61\u4ecd\u5fc5\u987b\u6807\u6e05\u3002<\/p>\n<h3 id=\"115\">11.5 \u8f93\u5165\u6e90\u7535\u6d41\u4e0d\u662f\u4e3b\u5f00\u5173\u7535\u6d41\u7684\u7b80\u5355\u5e73\u5747<\/h3>\n<p>\u590d\u4f4d\u80fd\u91cf\u56de\u5230\u8f93\u5165\u65f6\uff0c\u5c40\u90e8\u8f93\u5165\u7535\u5bb9\u627f\u53d7\u53cd\u5411\u7535\u6d41\u3002\u7528\u8f93\u5165\u7535\u538b\u4e58\u4e3b\u5f00\u5173\u5e73\u5747\u7535\u6d41\uff0c\u4f1a\u628a\u5f80\u8fd4\u52b1\u78c1\u80fd\u91cf\u5f53\u4f5c\u5168\u90e8\u51c0\u8f93\u5165\u529f\u7387\u3002\u6b63\u786e\u51c0\u8f93\u5165\u9700\u8981\u628a\u8fd4\u56de\u5206\u91cf\u6263\u9664\uff0c\u5b9e\u9645\u635f\u8017\u518d\u5355\u72ec\u52a0\u5165\u3002<\/p>\n<p>\u8fd9\u4e2a\u5173\u7cfb\u89e3\u91ca\u4e86\u4e3a\u4f55\u5f88\u5927\u7684\u52b1\u78c1\u5f80\u8fd4\u529f\u7387\u4e0d\u5fc5\u5168\u90e8\u53d8\u6210\u70ed\uff0c\u4f46\u4ecd\u589e\u52a0\u5668\u4ef6\u3001\u7535\u5bb9\u4e0e\u7ed5\u7ec4\u5e94\u529b\u3002\u56de\u9988\u6548\u7387\u6709\u9650\uff0c\u4e8c\u6781\u7ba1\u3001\u94dc\u7ebf\u548c\u78c1\u82af\u4f9d\u7136\u8017\u80fd\uff1b\u4e0d\u80fd\u628a\u201c\u80fd\u91cf\u56de\u6536\u201d\u7406\u89e3\u4e3a\u52b1\u78c1\u7535\u6d41\u5b8c\u5168\u6ca1\u6709\u4ee3\u4ef7\u3002<\/p>\n<h2 id=\"3660-v12-v5-a\">\u5341\u4e8c\u3001\u5355\u7ba1\u5b8c\u6574\u7b97\u4f8b\uff1a36\uff5e60 V\u8f93\u5165\uff0c12 V\/5 A\u8f93\u51fa<\/h2>\n<h3 id=\"121\">12.1 \u8bbe\u8ba1\u8f93\u5165\u8868<\/h3>\n<div style=\"overflow-x:auto;margin:20px 0\">\n<table style=\"width:100%;border-collapse:collapse;font-size:0.94em\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d4dce6;padding:10px;text-align:left;background:#eef4f9\">\u9879\u76ee<\/th>\n<th style=\"border:1px solid #d4dce6;padding:10px;text-align:left;background:#eef4f9\">\u521d\u7b97\u503c<\/th>\n<th style=\"border:1px solid #d4dce6;padding:10px;text-align:left;background:#eef4f9\">\u5907\u6ce8<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u8f93\u5165<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">36\uff5e60 V DC\uff0c\u6807\u79f048 V<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u9694\u79bb\u3001\u9650\u6d41\u5b9e\u9a8c\u8f93\u5165<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u8f93\u51fa<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">12 V\/5 A\uff0c60 W<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6052\u538b\u8f93\u51fa<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u9891\u7387<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">100 kHz<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u540e\u7eed\u52a0\u5165\u6700\u4f4e\u9891\u7387\u516c\u5dee<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u62d3\u6251<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u5355\u7ba1\uff0c\u7b49\u531d\u590d\u4f4d\u7ed5\u7ec4<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u7406\u60f3D\u4e0a\u96500.5<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u63a7\u5236\u76ee\u6807DMAX<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">0.45<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u5c1a\u9700\u786e\u8ba4\u94dc\u963b\u4e0e\u65f6\u5e8f\u4f59\u91cf<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u531d\u6570<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">Np=20\u3001Ns=16\u3001Nr=20<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">k=0.8\uff0cr=1<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">Lm<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">2 mH<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u9700\u5b9e\u9645AL\u4e0e\u88c5\u914d\u652f\u6301<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u78c1\u82afAe\/Amin<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">80\/72 mm\u00b2<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6559\u5b66\u5047\u8bbe\uff0c\u975e\u6307\u5b9a\u578b\u53f7<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">Lo<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">150 \u03bcH<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u68c0\u67e5\u9ad8\u8f93\u5165\u7eb9\u6ce2<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">VF\/VW<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u54040.45 V<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u7b49\u6548\u538b\u964d\u521d\u7b97<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u4ece\u6700\u4f4e\u8f93\u5165\u4e0e\u76ee\u6807DMAX\u53cd\u63a8\uff0ck\u81f3\u5c11\u5e94\u7ea6\u4e3a(12+0.45)\/(36\u00d70.45)=0.7685\u3002\u900916\/20=0.8\uff0c\u6700\u4f4e\u8f93\u5165\u6b63\u5e38\u5360\u7a7a\u6bd4\u7ea60.4323\uff0c\u8ddd\u79bb0.45\u4ecd\u6709\u4e00\u5b9a\u4f59\u91cf\u3002\u5b9e\u9645\u94dc\u963b\u53ef\u80fd\u5403\u6389\u8be5\u4f59\u91cf\uff0c\u540e\u7eed\u8981\u7528\u70ed\u6001\u53c2\u6570\u590d\u6838\u3002<\/p>\n<h3 id=\"122\">12.2 \u5360\u7a7a\u6bd4\u3001\u5bfc\u901a\u4e0e\u590d\u4f4d<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>D<sub>36V<\/sub>=12.45\/(0.8\u00d736)=0.43229\uff1b\u3000t<sub>on<\/sub>\u22484.323 \u03bcs<\/strong><\/p>\n<p>\u7b49\u531d\u590d\u4f4d\u7ea6\u97004.323 \u03bcs\uff0c10 \u03bcs\u5468\u671f\u8fd8\u5269\u7ea61.354 \u03bcs\u4f5c\u4e3a\u590d\u4f4d\u540e\u7684\u7b49\u5f85\u300248 V\u65f6D\u22480.32422\uff0c\u5bfc\u901a\u7ea63.242 \u03bcs\uff1b60 V\u65f6D\u22480.25938\uff0c\u5bfc\u901a\u7ea62.594 \u03bcs\u3002\u6700\u4f4e\u8f93\u5165\u662f\u590d\u4f4d\u65f6\u95f4\u4f59\u91cf\u6700\u5c0f\u7684\u6b63\u5e38\u70b9\u3002<\/p>\n<div style=\"overflow-x:auto;margin:20px 0\">\n<table style=\"width:100%;border-collapse:collapse;font-size:0.94em\">\n<thead>\n<tr>\n<th style=\"text-align: right;\">Vin<\/th>\n<th style=\"text-align: right;\">D<\/th>\n<th style=\"text-align: right;\">ton<\/th>\n<th style=\"text-align: right;\">\u7406\u60f3\u590d\u4f4d\u65f6\u95f4<\/th>\n<th style=\"text-align: right;\">\u590d\u4f4d\u540e\u4f59\u91cf<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: right;\">36 V<\/td>\n<td style=\"text-align: right;\">0.4323<\/td>\n<td style=\"text-align: right;\">4.323 \u03bcs<\/td>\n<td style=\"text-align: right;\">4.323 \u03bcs<\/td>\n<td style=\"text-align: right;\">1.354 \u03bcs<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">48 V<\/td>\n<td style=\"text-align: right;\">0.3242<\/td>\n<td style=\"text-align: right;\">3.242 \u03bcs<\/td>\n<td style=\"text-align: right;\">3.242 \u03bcs<\/td>\n<td style=\"text-align: right;\">3.516 \u03bcs<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">60 V<\/td>\n<td style=\"text-align: right;\">0.2594<\/td>\n<td style=\"text-align: right;\">2.594 \u03bcs<\/td>\n<td style=\"text-align: right;\">2.594 \u03bcs<\/td>\n<td style=\"text-align: right;\">4.813 \u03bcs<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u8fd9\u4e2a\u4f59\u91cf\u662f\u4f9d\u636e\u7406\u60f3\u7a33\u6001\u6a21\u578b\u7b97\u51fa\uff0c\u4e0d\u5305\u62ec\u5f00\u5173\u5ef6\u8fdf\u548c\u8fc7\u6e21\u3002\u6d4b\u8bd5\u65f6\u8fd8\u8981\u68c0\u67e5\u6700\u4f4e\u9891\u7387\u3001\u8f93\u5165\u8dcc\u843d\u3001\u8f6f\u542f\u52a8\u3001\u8fc7\u8f7d\u548c\u53cd\u9988\u9971\u548c\uff0c\u4e0d\u80fd\u53ea\u68c0\u67e5\u6807\u79f048 V\u7684\u6f02\u4eae\u6ce2\u5f62\u3002<\/p>\n<h3 id=\"123\">12.3 \u78c1\u5bc6\u4e0e\u52b1\u78c1\u7535\u6d41<\/h3>\n<p>\u6b63\u5e38VinD\u224815.5625 V\uff0c\u4f0f\u79d2\u7ea6155.625 V\u00b7\u03bcs\u3002Np=20\u3001Ae=80 mm\u00b2\uff1a<\/p>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>\u0394B<sub>e<\/sub>\u2248155.625\/(20\u00d780)=0.09727 T\uff1b\u3000\u0394B<sub>local<\/sub>\u2248155.625\/(20\u00d772)=0.10807 T<\/strong><\/p>\n<p>Lm=2 mH\u5bf9\u5e94Im,pk\u22480.07781 A\uff0cAL=2 mH\/20\u00b2=5000 nH\/\u531d\u00b2\u3002\u8fd9\u4e2aAL\u5bf9\u5177\u4f53\u78c1\u82af\u548c\u6750\u6599\u662f\u4e00\u9879\u9700\u8981\u786e\u8ba4\u7684\u6761\u4ef6\uff0c\u4e0d\u662f\u6240\u670980 mm\u00b2\u94c1\u6c27\u4f53\u90fd\u80fd\u81ea\u7136\u6ee1\u8db3\u3002\u5982\u679c\u5b9e\u9645Lm\u53ea\u6709\u4e00\u534a\uff0c\u52b1\u78c1\u5cf0\u503c\u548c\u56de\u6536\u80fd\u91cf\u90fd\u4f1a\u589e\u52a0\uff0c\u5e94\u91cd\u65b0\u8ba1\u7b97\u800c\u975e\u5047\u88c5\u4e00\u6837\u3002<\/p>\n<h3 id=\"124\">12.4 \u8f93\u51fa\u7535\u611f\u7eb9\u6ce2<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>\u0394I<sub>L,60V<\/sub>=12.45(1\u22120.25938)\/(150 \u03bcH\u00d7100 kHz)\u22480.61472 A<\/strong><\/p>\n<p>\u9ad8\u8f93\u5165\u5cf0\u503c\u7ea65.3074 A\uff0c\u8c37\u503c\u7ea64.6926 A\uff1b\u4f4e\u8f93\u5165\u7eb9\u6ce2\u7ea60.4712 A\uff0c\u5cf0\u503c\u7ea65.2356 A\u3002\u6ee1\u8f7d\u5747\u5904\u4e8eCCM\uff0c\u8f93\u51fa\u7535\u611fRMS\u7ea65.002\uff5e5.003 A\u3002\u6a21\u5f0f\u8fb9\u754c\u5927\u7ea6\u57280.24\uff5e0.31 A\u9644\u8fd1\uff0c\u8f7b\u8f7d\u9700\u8981\u8003\u8651DCM\u6216\u8df3\u8109\u51b2\u3002<\/p>\n<h3 id=\"125-mosfet\">12.5 MOSFET\u4e0e\u6574\u6d41\u5668\u521d\u7b97<\/h3>\n<p>\u6700\u9ad8\u8f93\u5165\u4e0b\u7406\u60f3\u6f0f\u6781\u590d\u4f4d\u5e73\u53f0\u7ea6120 V\uff0c\u590d\u4f4d\u4e8c\u6781\u7ba1\u7406\u60f3\u53cd\u538b\u4e5f\u7ea6120 V\uff0c\u5747\u9700\u8981\u52a0\u5165\u5c16\u5cf0\u4e0e\u77ac\u6001\u3002\u53ef\u4ee5\u8bc4\u4f30200 V\u7b49\u7ea7\u4e3bMOSFET\uff0c\u4f46\u5e94\u4ee5\u771f\u5b9e\u6700\u9ad8\u6ce2\u5f62\u3001\u9a71\u52a8\u3001\u70ed\u6001\u963b\u503c\u548c\u529f\u8017\u51b3\u5b9a\uff0c\u800c\u4e0d\u662f\u53ea\u628a\u7406\u60f3120 V\u5411\u4e0a\u51d1\u4e00\u4e2a\u6863\u4f4d\u3002<\/p>\n<p>DF\u548cDW\u7406\u60f3\u53cd\u538b\u91cf\u7ea7\u6700\u9ad8\u7ea6kVin=48 V\uff0c\u5b9e\u6d4b\u8fd8\u53ef\u80fd\u6709\u6f0f\u611f\u4e0e\u7ed3\u7535\u5bb9\u632f\u94c3\u3002\u4f4e\u538b\u6574\u6d41\u5668\u9700\u6743\u8861\u538b\u964d\u548c\u53cd\u538b\u88d5\u91cf\u3002\u6700\u4f4e\u8f93\u5165\u521d\u7ea7\u5f00\u5173RMS\u7ea62.657 A\uff0c\u6700\u9ad8\u8f93\u5165\u7ea62.059 A\uff1b\u4f46\u521d\u7ea7\u5cf0\u503c\u6700\u9ad8\u7ea64.324 A\u51fa\u73b0\u5728\u9ad8\u8f93\u5165\uff0c\u8bf4\u660eRMS\u6700\u574f\u70b9\u548c\u5cf0\u503c\u6700\u574f\u70b9\u4e0d\u4e00\u5b9a\u76f8\u540c\u3002<\/p>\n<h3 id=\"126\">12.6 \u8f93\u51fa\u7535\u611f\u78c1\u82af\u521d\u9009<\/h3>\n<p>\u7528Lo=150 \u03bcH\u3001\u6700\u5927\u6b63\u5e38\u5cf0\u503c5.307 A\uff0c\u5148\u53d6NL=48\u3001Ae,L=80 mm\u00b2\uff0c\u53ef\u5f97\u7ebf\u6027Bpk\u22480.2073 T\u3002\u76ee\u6807AL\u224865.1 nH\/\u531d\u00b2\uff0c\u7406\u60f3\u7b49\u6548\u603b\u6c14\u9699\u7ea61.544 mm\uff0c\u5cf0\u503c\u50a8\u80fd\u7ea62.113 mJ\u3002<\/p>\n<p>\u8fd9\u4e2a\u6c14\u9699\u5df2\u7ecf\u8db3\u4ee5\u8ba9\u8fb9\u7f18\u78c1\u573a\u4e0e\u7ed5\u7ec4\u635f\u8017\u503c\u5f97\u5173\u6ce8\u3002\u9700\u8981\u7ed3\u5408\u5b9e\u9645\u9aa8\u67b6\u3001\u5206\u5e03\u6c14\u9699\u6216\u5176\u4ed6\u7ed3\u6784\u8bc4\u4f30\uff0c\u800c\u4e0d\u662f\u968f\u624b\u78e8\u51fa\u4e00\u70b9\u4e94\u6beb\u7c73\u3002\u7535\u611f\u7ebf\u5f84\u6309\u4e94\u5b89RMS\u548c\u6e29\u5347\u9009\uff0c\u7a97\u53e3\u5fc5\u987b\u5bb9\u7eb348\u531d\u5927\u94dc\u9762\u79ef\u53ca\u7edd\u7f18\uff1b\u82e5\u653e\u4e0d\u4e0b\uff0c\u589e\u5927\u78c1\u82af\u6216\u6539\u53d8\u6750\u6599\u4e0e\u531d\u6570\u3002<\/p>\n<h3 id=\"127\">12.7 \u7b97\u4f8b\u6709\u54ea\u4e9b\u5c1a\u672a\u95ed\u5408\u7684\u9879<\/h3>\n<p>\u5c1a\u672a\u786e\u5b9a\u5177\u4f53\u78c1\u82af\u6750\u6599\u3001MOSFET\u578b\u53f7\u3001\u4e24\u53ea\u6574\u6d41\u5668\u3001\u63a7\u5236\u5668\u3001\u70ed\u6001\u94dc\u963b\u3001\u6f0f\u611f\u548c\u8865\u507f\u3002\u6240\u6709\u7ed9\u5b9a\u503c\u662f\u53ef\u81ea\u6d3d\u7684\u8d77\u70b9\uff0c\u4e0d\u6784\u6210\u5df2\u7ecf\u5408\u683c\u7684\u6574\u673a\u3002\u4e0b\u4e00\u8f6e\u5e94\u5b9e\u6d4bAL\u548c\u6f0f\u611f\uff0c\u4f30\u7b97\u94dc\u963b\uff0c\u628a\u538b\u964d\u8865\u8fdbD\uff0c\u518d\u786e\u8ba4\u6700\u4f4e\u8f93\u5165\u4ecd\u6709\u8db3\u591f\u590d\u4f4d\u548c\u8c03\u8282\u88d5\u91cf\u3002<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-07-low-example.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" style=\"display:block;max-width:100%;height:auto;margin:26px auto\" loading=\"lazy\" alt=\"\u4f4e\u538b\u5355\u7ba1\u7b97\u4f8b\u7684\u5bfc\u901a\u3001\u590d\u4f4d\u3001\u8f93\u51fa\u7535\u6d41\u4e0e\u6f0f\u6781\u6ce2\u5f62\" data-original=\"https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-07-low-example.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<h2 id=\"_9\">\u5341\u4e09\u3001\u7ed5\u5236\u65b9\u6cd5\uff1a\u53d8\u538b\u5668\u548c\u8f93\u51fa\u7535\u611f\u5206\u5f00\u505a\u5de5\u827a\u5361<\/h2>\n<h3 id=\"131\">13.1 \u5148\u5199\u5f15\u811a\u4e0e\u89c2\u5bdf\u65b9\u5411<\/h3>\n<p>\u4ece\u5f15\u811a\u4fa7\u89c2\u5bdf\uff0c\u5b9a\u4e49Np\u7684\u70b9\u7aef\u4e3a1\u811a\uff0c\u4e3b\u521d\u7ea7\u4e3a1\u20143\uff1bP1\u4e3a1\u20142\u5341\u531d\uff0cP2\u4e3a2\u20143\u5341\u531d\uff0c\u540c\u5411\u4e32\u8054\u3002\u6b21\u7ea7\u70b9\u7aef5\u811a\u3001\u975e\u70b9\u7aef6\u811a\uff0c\u5171\u5341\u516d\u531d\u3002\u590d\u4f4d\u70b9\u7aef7\u3001\u975e\u70b9\u7aef8\uff0c\u5171\u4e8c\u5341\u531d\u3002<\/p>\n<p>\u5355\u7ba1\u56fe\u4e2d8\u811a\u63a5\u8f93\u5165\u6b63\u7aef\uff0c7\u811a\u63a5DR\u9634\u6781\uff0cDR\u9633\u6781\u63a5\u8f93\u5165\u8d1f\u7aef\u3002\u6b21\u7ea75\u63a5DF\u9633\u6781\u30016\u63a5\u8f93\u51fa\u5730\u3002\u78c1\u4ef6\u5f15\u811a\u5b9a\u4e49\u548c\u539f\u7406\u56fe\u5fc5\u987b\u4e00\u81f4\uff1b\u751f\u4ea7\u8005\u4e0d\u5e94\u901a\u8fc7\u5bfc\u7ebf\u989c\u8272\u731c\u70b9\u7aef\uff0c\u4e5f\u4e0d\u5e94\u9760\u201c\u901a\u5e38\u90fd\u662f\u8fd9\u6837\u63a5\u201d\u7701\u7565\u8bb0\u5f55\u3002<\/p>\n<h3 id=\"132-p1sp2\">13.2 P1\u2014S\u2014P2\u4e09\u660e\u6cbb\u7ed5\u6cd5<\/h3>\n<p>\u628a\u521d\u7ea7\u5206\u6210\u5341\u531d\u548c\u5341\u531d\uff0c\u6b21\u7ea7\u5939\u5728\u4e2d\u95f4\uff0c\u53ef\u4ee5\u964d\u4f4e\u6f0f\u78c1\u573a\u50a8\u80fd\u4e0e\u5e73\u5747\u8026\u5408\u8ddd\u79bb\u3002\u4e24\u6bb5\u521d\u7ea7\u7535\u6d41\u76f8\u540c\uff0c\u4e0d\u80fd\u6309\u4e00\u534a\u7535\u6d41\u9009\u7ebf\u3002\u4e32\u8054\u52a9\u78c1\u540e\u603b\u521d\u7ea720\u531d\uff0c\u4e0d\u662f\u4e24\u4e2a\u72ec\u7acb20\u531d\uff0c\u4e5f\u4e0d\u662f10\u531d\u5e76\u8054\u3002<\/p>\n<p>\u5efa\u8bae\u987a\u5e8f\u4e3aP1\u3001\u521d\u6b21\u7ea7\u7edd\u7f18\u3001S\u3001\u521d\u6b21\u7ea7\u7edd\u7f18\u3001P2\u3001\u590d\u4f4d\u7ed5\u7ec4\u3001\u5916\u5305\u3002\u590d\u4f4d\u7ed5\u7ec4\u5c5e\u4e8e\u4e00\u6b21\u4fa7\u7535\u4f4d\u533a\uff0c\u548cP2\u4e4b\u95f4\u4ecd\u9700\u6ee1\u8db3\u5176\u6700\u5927\u5c42\u95f4\u7535\u538b\u4e0e\u529f\u80fd\u7edd\u7f18\u3002\u82e5\u628a\u590d\u4f4d\u7ed5\u7ec4\u53e6\u4f5c\u6392\u5e03\uff0c\u5e94\u91cd\u65b0\u5206\u6790\u6f0f\u611f\u548c\u5b9e\u9645\u590d\u4f4d\u5e73\u53f0\u3002<\/p>\n<h3 id=\"133\">13.3 \u4e32\u8054\u52a9\u78c1\u600e\u6837\u6d4b<\/h3>\n<p>\u88c5\u82af\u540e\u7ed9\u6bcf\u6bb5\u65bd\u52a0\u5408\u9002\u9891\u7387\u4e0e\u5e45\u5ea6\u7684\u9694\u79bb\u5c0f\u4fe1\u53f7\uff0c\u786e\u8ba4P1\u548cP2\u4e32\u8054\u603b\u7535\u538b\u4e3a\u76f8\u52a0\u3002\u6781\u6027\u53cd\u63a5\u4f1a\u4f7f\u603b\u611f\u5e94\u7535\u538b\u548c\u7535\u611f\u5927\u5e45\u4e0b\u964d\uff0c\u53ef\u80fd\u5728\u4e0a\u7535\u65f6\u51fa\u73b0\u4e25\u91cd\u7535\u6d41\u3002\u7535\u538b\u5e45\u503c\u548c\u9891\u7387\u5fc5\u987b\u907f\u514d\u6d4b\u8bd5\u672c\u8eab\u628a\u78c1\u82af\u63a8\u5165\u9971\u548c\u3002<\/p>\n<p>\u6392\u7ebf\u5de6\u53f3\u5f80\u8fd4\u4e0e\u7535\u6c14\u7ed5\u5411\u662f\u4e0d\u540c\u6982\u5ff5\u3002\u7b2c\u4e00\u5c42\u4ece\u5de6\u5230\u53f3\u3001\u7b2c\u4e8c\u5c42\u4ece\u53f3\u5230\u5de6\uff0c\u53ea\u6539\u53d8\u5bfc\u7ebf\u6cbf\u9aa8\u67b6\u5bbd\u5ea6\u7684\u6392\u5e03\uff0c\u4e0d\u5e94\u8be5\u53cd\u5411\u7ed5\u4e2d\u67f1\u3002\u65bd\u5de5\u5361\u5e94\u753b\u51fa\u8d77\u6b62\u7ebf\u4e0e\u89c2\u5bdf\u9762\uff0c\u51cf\u5c11\u6587\u5b57\u6b67\u4e49\u3002<\/p>\n<h3 id=\"134\">13.4 \u4f4e\u538b\u7b97\u4f8b\u7ebf\u6750\u521d\u7b97<\/h3>\n<p>\u6700\u4f4e\u8f93\u5165\u521d\u7ea7RMS\u7ea62.657 A\uff0c\u82e5\u4ee53 A\/mm\u00b2\u4f5c\u521d\u7b97\u9700\u7ea60.886 mm\u00b2\u88f8\u94dc\uff0c\u53ef\u8bc4\u4f3030\u80a10.20 mm\uff0c\u603b\u94dc\u7ea60.942 mm\u00b2\u3002\u6b21\u7ea7\u6700\u574fRMS\u7ea63.289 A\uff0c\u9700\u7ea61.096 mm\u00b2\uff0c\u53ef\u8bc4\u4f3036\u80a10.20 mm\uff0c\u603b\u94dc\u7ea61.131 mm\u00b2\u3002<\/p>\n<p>\u590d\u4f4d\u7ed5\u7ec4\u7535\u6d41\u5c0f\u5f97\u591a\uff0c\u53ef\u8bc4\u4f30\u8f83\u7ec6\u5355\u7ebf\uff0c\u4f46\u7ebf\u5f84\u8fd8\u53d7\u673a\u68b0\u5f3a\u5ea6\u3001\u7edd\u7f18\u548c\u7aef\u63a5\u9650\u5236\u3002\u6240\u6709\u5e76\u80a1\u5fc5\u987b\u5b8c\u6574\u7ecf\u8fc7\u76f8\u540c\u531d\u6570\u5e76\u5728\u7aef\u90e8\u53ef\u9760\u5e76\u8054\uff0c\u6f0f\u710a\u7ec6\u80a1\u4f1a\u4f7f\u5b9e\u9645\u94dc\u9762\u79ef\u4e0d\u8db3\u3002\u666e\u901a\u5e76\u80a1\u5e76\u4e0d\u81ea\u52a8\u7b49\u4e8e\u6709\u6362\u4f4d\u7ed3\u6784\u7684\u5229\u5179\u7ebf\uff0c\u4ea4\u6d41\u7535\u963b\u9700\u8981\u5355\u72ec\u68c0\u67e5\u3002<\/p>\n<h3 id=\"135\">13.5 \u4e09\u660e\u6cbb\u4e0d\u53ea\u6709\u597d\u5904<\/h3>\n<p>\u589e\u52a0\u521d\u6b21\u7ea7\u76f8\u90bb\u754c\u9762\u901a\u5e38\u4f1a\u589e\u52a0\u5bc4\u751f\u7535\u5bb9\uff0c\u53ef\u80fd\u8ba9\u5171\u6a21\u566a\u58f0\u66f4\u5f3a\uff1b\u4e24\u9053\u7edd\u7f18\u4e5f\u5360\u7528\u7a97\u53e3\u3002\u9ad8dv\/dt\u7aef\u653e\u7f6e\u3001\u5c42\u95f4\u7535\u4f4d\u68af\u5ea6\u548c\u5c4f\u853d\u4f1a\u6539\u53d8\u7ed3\u679c\u3002\u4e0d\u80fd\u4ee5\u6700\u4f4e\u6f0f\u611f\u4f5c\u4e3a\u552f\u4e00\u7ed3\u6784\u76ee\u6807\u3002<\/p>\n<p>\u5982\u679c\u9700\u8981\u5c4f\u853d\uff0c\u5b83\u901a\u5e38\u5e94\u907f\u514d\u5f62\u6210\u94fe\u63a5\u4e3b\u78c1\u901a\u7684\u95ed\u5408\u77ed\u8def\u531d\uff0c\u5e76\u6309EMI\u4e0e\u7edd\u7f18\u8981\u6c42\u8fde\u63a5\u3002\u968f\u610f\u7ed5\u94dc\u7b94\u4e00\u5708\u540e\u4e24\u7aef\u710a\u6b7b\uff0c\u4f1a\u5f62\u6210\u5371\u9669\u77ed\u8def\u531d\u3002\u5c4f\u853d\u7ebf\u548c\u78c1\u82af\u5939\u5177\u4e5f\u8981\u68c0\u67e5\u662f\u5426\u5efa\u7acb\u4e0d\u53d7\u63a7\u7535\u6d41\u8def\u5f84\u3002<\/p>\n<h3 id=\"136\">13.6 \u8f93\u51fa\u7535\u611f\u53e6\u5199\u4e00\u5f20\u5de5\u827a\u5361<\/h3>\n<p>Lo\u4e0d\u9700\u8981\u521d\u6b21\u7ea7\u9694\u79bb\u531d\u6bd4\uff0c\u4f46\u8981\u8bb0\u5f55NL\u3001\u7ebf\u578b\u3001\u6bcf\u5c42\u531d\u6570\u3001\u6c14\u9699\/AL\u3001\u88c5\u82af\u538b\u529b\u548c\u76f4\u6d41\u504f\u7f6e\u8981\u6c42\u3002\u4e0d\u80fd\u53ea\u4ea4\u4ed8\u201c150 \u03bcH\u201d\u800c\u4e0d\u8bf4\u660e\u5728\u591a\u5c11\u7535\u6d41\u3001\u4ec0\u4e48\u6e29\u5ea6\u4e0b\u4ecd\u5e94\u6ee1\u8db3\u591a\u5c11\u7535\u611f\u3002<\/p>\n<p>\u6c14\u9699\u9644\u8fd1\u5bfc\u7ebf\u53ef\u80fd\u51fa\u73b0\u989d\u5916\u6da1\u6d41\u635f\u8017\uff0c\u539a\u94dc\u7b94\u4e0e\u7c97\u5bfc\u4f53\u5c24\u5176\u9700\u8981\u5173\u6ce8\u3002\u8c03\u6574\u7ed5\u7ec4\u4f4d\u7f6e\u3001\u5206\u5e03\u6c14\u9699\u548c\u5bfc\u4f53\u7ec6\u5206\u90fd\u53ef\u80fd\u6709\u6548\uff0c\u4f46\u8981\u7ed3\u5408\u7a97\u53e3\u548c\u70ed\u70b9\u6d4b\u8bd5\u3002\u6837\u54c1\u6d4b\u5f97\u5ba4\u6e29\u7a7a\u8f7d\u7535\u611f\u6b63\u786e\uff0c\u4e0d\u8868\u793a\u6ee1\u8f7d\u70ed\u6001\u4e5f\u6b63\u786e\u3002<\/p>\n<h2 id=\"220-v5-v2-a\">\u5341\u56db\u3001220 V\u4ea4\u6d41\u8f6c5 V\/2 A\uff1a\u4e3a\u4ec0\u4e48\u9009\u62e9\u53cc\u7ba1\u4f5c\u5bf9\u7167<\/h2>\n<h3 id=\"141\">14.1 \u4fdd\u6301\u4e0a\u7bc7\u76f8\u540c\u8f93\u51fa\u76ee\u6807<\/h3>\n<p>\u8f93\u5165\u6309220 V AC\u300150 Hz\u53ca\u00b110%\u8303\u56f4198\uff5e242 V\u8bbe\u8ba1\u3002\u8f93\u51fa\u4e3a5 V\u30012 A\u300110 W\u3002\u8fd9\u4e2a\u89c4\u683c\u4e0b\u6b63\u6fc0\u589e\u52a0\u4e24\u53ea\u4e3b\u5f00\u5173\u3001\u8f93\u51fa\u7535\u611f\u53ca\u9a71\u52a8\uff0c\u6210\u672c\u53ef\u80fd\u9ad8\u4e8e\u53cd\u6fc0\uff0c\u672c\u6587\u5c06\u5b83\u4f5c\u4e3a\u62d3\u6251\u4e0e\u8ba1\u7b97\u5bf9\u7167\uff0c\u5b9e\u9645\u4ea7\u54c1\u9009\u578b\u5e94\u540c\u65f6\u6bd4\u8f83\u6548\u7387\u3001\u4f53\u79ef\u548c\u6210\u672c\u3002<\/p>\n<p>\u82e5\u91c7\u7528\u7b49\u531d\u590d\u4f4d\u5355\u7ba1\uff0c\u6700\u9ad8\u6b63\u5e38\u6bcd\u7ebf\u7ea6342 V\u65f6\u6f0f\u6781\u5e73\u53f0\u7ea6684 V\uff0c\u8fd8\u672a\u5305\u542b\u5c16\u5cf0\u3002\u6539\u53cc\u7ba1\u540e\u6bcf\u53ea\u5f00\u5173\u7406\u60f3\u5e73\u53f0\u7ea6342 V\uff0c\u8010\u538b\u538b\u529b\u964d\u4f4e\uff0c\u4f46\u589e\u52a0\u9ad8\u8fb9\u9a71\u52a8\u548c\u56de\u9988\u4e8c\u6781\u7ba1\u3002\u8fd9\u4e2a\u53d8\u5316\u662f\u9009\u62e9\u53cc\u7ba1\u6f14\u793a\u7684\u76f4\u63a5\u539f\u56e0\u3002<\/p>\n<h3 id=\"142\">14.2 \u4ea4\u6d41\u5148\u53d8\u6210\u9ad8\u538b\u6bcd\u7ebf<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>V<sub>bus,peak<\/sub>\u2248\u221a2V<sub>AC,rms<\/sub>\u22122V<sub>F,bridge<\/sub><\/strong><\/p>\n<p>220 V\u7406\u60f3\u6ce2\u5cf0\u7ea6311 V\uff0c\u6700\u4f4e198 V\u6ce2\u5cf0\u7ea6280 V\uff0c\u6700\u9ad8242 V\u6ce2\u5cf0\u7ea6342.2 V\u3002\u771f\u6b63\u6700\u4f4e\u6bcd\u7ebf\u662f\u50a8\u80fd\u7535\u5bb9\u653e\u7535\u8c37\u503c\uff0c\u4e0d\u80fd\u7528\u4ea4\u6d41\u6709\u6548\u503c\u6216\u6807\u79f0\u6ce2\u5cf0\u66ff\u4ee3\u3002\u672c\u6587\u9009230 V\u4f5c\u4e3a\u8bbe\u8ba1\u6700\u4f4e\u6bcd\u7ebf\uff0c\u5305\u542b\u7eb9\u6ce2\u3001\u516c\u5dee\u548c\u8dcc\u843d\u7a7a\u95f4\uff0c\u5177\u4f53\u662f\u5426\u6ee1\u8db3\u7531\u8f93\u5165\u7535\u5bb9\u53ca\u5b9e\u6d4b\u51b3\u5b9a\u3002<\/p>\n<h3 id=\"143\">14.3 \u8bbe\u8ba1\u8868<\/h3>\n<div style=\"overflow-x:auto;margin:20px 0\">\n<table style=\"width:100%;border-collapse:collapse;font-size:0.94em\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d4dce6;padding:10px;text-align:left;background:#eef4f9\">\u53c2\u6570<\/th>\n<th style=\"border:1px solid #d4dce6;padding:10px;text-align:left;background:#eef4f9\">\u521d\u7b97\u503c<\/th>\n<th style=\"border:1px solid #d4dce6;padding:10px;text-align:left;background:#eef4f9\">\u8bf4\u660e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6bcd\u7ebf<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">230\uff5e\u7ea6342 V DC<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u7531198\uff5e242 V AC\u524d\u7aef\u9a8c\u8bc1<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u8f93\u51fa<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">5 V\/2 A<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">10 W<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u62d3\u6251<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u53cc\u7ba1\u6b63\u6fc0<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u540c\u65f6\u5f00\u5173\u3001\u4e8c\u6781\u7ba1\u590d\u4f4d<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">fs<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">100 kHz<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u68c0\u67e5\u516c\u5dee\u4e0e\u6a21\u5f0f<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">Np\u3001Ns<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">160\u300112\u531d<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">k=0.075<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u53d8\u538b\u5668Lm<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">20 mH<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u5b8c\u6574\u521d\u7ea7\u6d4b\u8bd5<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">Ae\/Amin<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">30\/27 mm\u00b2<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6559\u5b66\u78c1\u82af\u53c2\u6570<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">Lo<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">68 \u03bcH<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u989d\u5b9a\u8d1f\u8f7dCCM<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">VF\u3001VW<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u54040.45 V<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u540e\u7eed\u7528\u5b9e\u9645\u66f2\u7ebf\u4fee\u6b63<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">CVout\u5019\u9009<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">470 \u03bcF\u6709\u6548\u5bb9\u91cf<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u52a8\u6001\u53ef\u80fd\u8981\u6c42\u66f4\u5927<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6548\u7387\u9884\u7b97<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">80%\u4f5c\u8f93\u5165\u521d\u7b97<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4e0d\u662f\u6d4b\u5f97\u7ed3\u679c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u8fd9\u91ccNp\u4e0eNs\u90fd\u4e3a\u6574\u6570\uff0c\u6ca1\u6709\u518d\u4f7f\u7528\u53d6\u6574\u524d\u7684\u7406\u60f3\u531d\u6bd4\u300220 mH\u5bf9\u5e94AL\u7ea6781.25 nH\/\u531d\u00b2\uff0c\u987b\u7531\u5b9e\u9645\u6750\u6599\u548c\u88c5\u914d\u786e\u8ba4\u3002\u78c1\u82af\u5916\u5f62\u672a\u6307\u5b9a\uff0c\u56e0\u6b64\u672c\u8868\u4e0d\u662f\u4efb\u610f\u4e00\u4e2a\u5c0f\u578b\u78c1\u82af\u90fd\u80fd\u76f4\u63a5\u7ed5\u4e0b\u7684\u627f\u8bfa\u3002<\/p>\n<h3 id=\"144\">14.4 \u5360\u7a7a\u6bd4\u4e0e\u590d\u4f4d<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>D<sub>230V<\/sub>=5.45\/(0.075\u00d7230)\u22480.31594\uff1b\u3000t<sub>on<\/sub>\u22483.159 \u03bcs<\/strong><\/p>\n<p>\u590d\u4f4d\u7ea6\u97003.159 \u03bcs\uff0c\u5468\u671f\u8fd8\u6709\u7ea63.681 \u03bcs\u590d\u4f4d\u540e\u4f59\u91cf\u3002310 V\u65f6D\u22480.23441\u3001ton\u22482.344 \u03bcs\uff1b342 V\u65f6D\u22480.21248\u3001ton\u22482.125 \u03bcs\u3002\u94dc\u963b\u4f1a\u4f7f\u5b9e\u9645D\u589e\u52a0\uff0c\u5e94\u5728\u70ed\u6001\u91cd\u65b0\u6d4b\u91cf\u3002<\/p>\n<h3 id=\"145\">14.5 \u78c1\u5bc6\u4e0e\u52b1\u78c1\u5cf0\u503c<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>V<sub>in<\/sub>D=5.45\/0.075\u224872.667 V\uff1b\u3000\u0394B<sub>e<\/sub>\u22480.15139 T\uff1b\u3000\u0394B<sub>local<\/sub>\u22480.16821 T<\/strong><\/p>\n<p>\u52b1\u78c1\u5cf0\u503c\u7ea672.667\/(20 mH\u00d7100 kHz)=0.03633 A\u3002\u8fd9\u4e2a\u7535\u6d41\u4e0d\u5927\uff0c\u4f46\u6bcf\u5468\u671f\u56de\u9001\u7684\u7406\u60f3\u52b1\u78c1\u529f\u7387\u7ea61.32 W\uff1b\u5b83\u5927\u90e8\u5206\u56de\u5230\u8f93\u5165\uff0c\u4e0d\u80fd\u76f4\u63a5\u5168\u7b97\u635f\u8017\uff0c\u4e5f\u4e0d\u662f\u96f6\u4ee3\u4ef7\u3002\u521d\u7ea7\u94dc\u3001\u590d\u4f4d\u4e8c\u6781\u7ba1\u3001\u78c1\u82af\u548c\u7535\u5bb9\u4ecd\u627f\u53d7\u5f80\u8fd4\u80fd\u91cf\u3002<\/p>\n<h3 id=\"146\">14.6 \u8f93\u51fa\u7eb9\u6ce2\u4e0e\u5404\u5668\u4ef6\u7535\u6d41<\/h3>\n<p>230 V\u65f6\u0394IL\u22480.54825 A\uff0c342 V\u65f6\u7ea60.63118 A\u3002\u6700\u9ad8\u6b63\u5e38\u7535\u611f\u5cf0\u503c\u7ea62.3156 A\uff0c\u8c37\u503c\u7ea61.6844 A\uff0cLo,RMS\u7ea62.0083 A\u3002\u8f93\u51fa\u7535\u5bb9RMS\u6700\u9ad8\u7ea60.1822 A\uff0c\u6bd4\u76f8\u540c\u8f93\u51fa\u53cd\u6fc0\u7684\u8109\u51b2\u5145\u7535\u7535\u5bb9\u5c0f\u5f88\u591a\uff0c\u4f46\u7eb9\u6ce2\u5e76\u4e0d\u80fd\u63cf\u8ff0\u8d1f\u8f7d\u77ac\u6001\u6240\u9700\u5bb9\u91cf\u3002<\/p>\n<div style=\"overflow-x:auto;margin:20px 0\">\n<table style=\"width:100%;border-collapse:collapse;font-size:0.94em\">\n<thead>\n<tr>\n<th style=\"text-align: right;\">\u6bcd\u7ebf<\/th>\n<th style=\"text-align: right;\">D<\/th>\n<th style=\"text-align: right;\">\u0394IL<\/th>\n<th style=\"text-align: right;\">\u6bcf\u53ea\u4e3b\u5f00\u5173RMS<\/th>\n<th style=\"text-align: right;\">\u521d\u7ea7\u5cf0\u503c<\/th>\n<th style=\"text-align: right;\">DW\u5e73\u5747\u7535\u6d41<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: right;\">230 V<\/td>\n<td style=\"text-align: right;\">0.31594<\/td>\n<td style=\"text-align: right;\">0.5483 A<\/td>\n<td style=\"text-align: right;\">0.09536 A<\/td>\n<td style=\"text-align: right;\">0.2069 A<\/td>\n<td style=\"text-align: right;\">1.3681 A<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">310 V<\/td>\n<td style=\"text-align: right;\">0.23441<\/td>\n<td style=\"text-align: right;\">0.6136 A<\/td>\n<td style=\"text-align: right;\">0.08223 A<\/td>\n<td style=\"text-align: right;\">0.2093 A<\/td>\n<td style=\"text-align: right;\">1.5312 A<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">342 V<\/td>\n<td style=\"text-align: right;\">0.21248<\/td>\n<td style=\"text-align: right;\">0.6312 A<\/td>\n<td style=\"text-align: right;\">0.07831 A<\/td>\n<td style=\"text-align: right;\">0.2100 A<\/td>\n<td style=\"text-align: right;\">1.5750 A<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u8868\u4e2d\u7684\u4e3b\u5f00\u5173RMS\u53ea\u542b\u4f20\u80fd\u5bfc\u901a\u6bb5\uff1b\u5b8c\u6574\u521d\u7ea7\u94dc\u8fd8\u8981\u5305\u542b\u590d\u4f4d\u6bb5\u52b1\u78c1\u7535\u6d41\u3002DF\u6700\u574f\u5e73\u5747\u7ea60.6319 A\uff0cDW\u6700\u5927\u7ea61.575 A\uff0c\u4e24\u8005\u4e0d\u80fd\u90fd\u6309\u540c\u4e00\u5e73\u5747\u503c\u4f30\u7b97\u635f\u8017\u3002<\/p>\n<h3 id=\"147\">14.7 \u5668\u4ef6\u8010\u538b\u521d\u9009<\/h3>\n<p>\u6bcf\u53ea\u4e3b\u5f00\u5173\u7406\u60f3\u6700\u9ad8\u7ea6342 V\uff0c\u5de5\u7a0b\u4e0a\u53ef\u8bc4\u4f30650 V\u7b49\u7ea7\u5668\u4ef6\u5e76\u6839\u636e\u5b9e\u9645\u5c16\u5cf0\u3001\u6e29\u5ea6\u4e0e\u6d6a\u6d8c\u7559\u88d5\u91cf\u3002\u4e24\u53ea\u590d\u4f4d\u4e8c\u6781\u7ba1\u4e5f\u8981\u6838\u5bf9\u6bcd\u7ebf\u53cd\u538b\u3001\u6362\u6d41\u548c\u56de\u9001\u8def\u5f84\u3002DF\u4e0eDW\u5728\u6b63\u5e38\u5bfc\u901a\/\u590d\u4f4d\u9636\u6bb5\u7684\u7406\u60f3\u53cd\u538b\u91cf\u7ea7\u6700\u9ad8\u7ea625.65 V\uff0c\u6700\u7ec8\u6309\u5b9e\u6d4b\u632f\u94c3\u548c\u5f02\u5e38\u9009\u578b\uff0c\u4f8b\u5982\u8bc4\u4f3060 V\u6216\u66f4\u9ad8\u7b49\u7ea7\u4f4e\u538b\u5668\u4ef6\u3002<\/p>\n<p>\u8fd9\u4e0d\u662f\u8bf4\u6240\u6709650 V MOSFET\u621660 V\u4e8c\u6781\u7ba1\u90fd\u5408\u683c\u3002RDS(on)\u3001Qg\u3001Coss\u3001VF\u3001\u6f0f\u7535\u3001\u5c01\u88c5\u70ed\u963b\u548c\u91cd\u590d\u8109\u51b2\u80fd\u529b\u90fd\u4f1a\u5f71\u54cd\u3002\u53ea\u6709\u8010\u538b\u548c\u5e73\u5747\u5b89\u6570\u4e24\u5217\u7684BOM\u4e0d\u8db3\u4ee5\u6307\u5bfc\u6837\u673a\u3002<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-08-ac-example.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" style=\"display:block;max-width:100%;height:auto;margin:26px auto\" loading=\"lazy\" alt=\"220V\u4ea4\u6d41\u8f6c5V\u53cc\u7ba1\u6b63\u6fc0\u8ba1\u7b97\u7ed3\u679c\u53ca\u4e0d\u540c\u6bcd\u7ebf\u4e0b\u7684\u5e94\u529b\" data-original=\"https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-08-ac-example.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<h2 id=\"_10\">\u5341\u4e94\u3001\u5e02\u7535\u524d\u7aef\u4e0e\u50a8\u80fd\uff1a\u628a\u4ea4\u6d41\u8f93\u5165\u4e5f\u7b97\u5b8c\u6574<\/h2>\n<h3 id=\"151\">15.1 \u8f93\u5165\u529f\u7387\u9884\u7b97<\/h3>\n<p>5 V\/2 A\u8f93\u51fa10 W\uff0c\u4ee580%\u6548\u7387\u5148\u4f30\u8f93\u5165\u6709\u529f\u529f\u738712.5 W\uff0c\u603b\u635f\u8017\u9884\u7b972.5 W\u3002\u4e24\u53ea\u6574\u6d41\u5668\u6052\u538b\u964d\u5408\u8ba1\u7ea60.45\u00d72=0.9 W\uff0c\u5269\u4e0b1.6 W\u4f9b\u4e24\u53ea\u4e3b\u5f00\u5173\u3001\u9a71\u52a8\u3001\u78c1\u4ef6\u3001\u63a7\u5236\u3001\u6865\u5806\u548c\u5176\u4ed6\u635f\u8017\u3002\u80fd\u5426\u505a\u5230\u8981\u9760\u635f\u8017\u8868\u548c\u6837\u673a\uff0c\u4e0d\u5e94\u628a80%\u5f53\u4f5c\u5df2\u9a8c\u8bc1\u6307\u6807\u3002<\/p>\n<p>\u4ea4\u6d41\u8f93\u5165\u7535\u6d41\u4e0d\u662f\u7b80\u535512.5\/220\u5f97\u5230\u7684RMS\uff0c\u56e0\u4e3a\u6865\u5806\u52a0\u50a8\u80fd\u7535\u5bb9\u4ece\u4ea4\u6d41\u6ce2\u5cf0\u9644\u8fd1\u8109\u51b2\u53d6\u7535\u3002\u8f93\u5165\u529f\u7387\u56e0\u6570\u3001\u8c10\u6ce2\u548c\u5145\u7535\u5cf0\u503c\u5f71\u54cd\u6865\u5806\u3001\u4fdd\u9669\u3001NTC\u548cEMI\u6ee4\u6ce2\u9009\u578b\u3002\u529f\u7387\u8ba1\u5e94\u8bfb\u6709\u529f\u529f\u7387\uff0c\u4e0d\u80fd\u628a\u89c6\u5728\u529f\u7387\u8bef\u5f53\u6548\u7387\u5206\u6bcd\u3002<\/p>\n<h3 id=\"152\">15.2 \u50a8\u80fd\u7535\u5bb9\u6309\u80fd\u91cf\u5dee\u521d\u7b97<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>C<sub>bulk<\/sub>\u22652P<sub>in<\/sub>t<sub>dis<\/sub>\/(V<sub>start<\/sub>\u00b2\u2212V<sub>end<\/sub>\u00b2)<\/strong><\/p>\n<p>\u6700\u4f4e198 V AC\u3001\u6865\u5806\u603b\u538b\u964d\u6682\u53d62 V\uff0c\u5219\u5145\u7535\u8d77\u70b9\u7ea6278 V\u3002\u4ee510 ms\u4e3a\u4fdd\u5b88\u653e\u7535\u65f6\u95f4\u3001\u7ec8\u70b9230 V\u3001Pin=12.5 W\uff0c\u7406\u60f3\u6700\u4f4e\u5bb9\u91cf\u7ea610.25 \u03bcF\u3002\u5019\u900922 \u03bcF\u5728\u540c\u4e00\u8fd1\u4f3c\u4e0b\u653e\u5230\u7ea6256.8 V\uff0c\u4f4e\u4e8e\u6b64\u503c\u7684\u5bb9\u5dee\u3001\u8001\u5316\u4e0e\u66f4\u957f\u8dcc\u843d\u8fd8\u8981\u53e6\u5916\u68c0\u67e5\u3002<\/p>\n<p>50 Hz\u5168\u6ce2\u6574\u6d41\u76f8\u90bb\u6ce2\u5cf0\u7ea610 ms\uff0c\u771f\u5b9e\u5bfc\u901a\u89d2\u4f1a\u6539\u53d8\u6709\u6548\u653e\u7535\u65f6\u95f4\u3002\u8f83\u957f\u6389\u7535\u4fdd\u6301\u8981\u6c42\u5fc5\u987b\u4f7f\u7528\u89c4\u5b9a\u4fdd\u6301\u65f6\u95f4\u91cd\u65b0\u7b97\uff0c\u4e0d\u80fd\u7528\u5341\u6beb\u79d2\u4ee3\u8868\u6240\u6709\u6389\u7535\u573a\u666f\u3002\u63a7\u5236\u5668VCC\u5148\u6b20\u538b\u4e5f\u53ef\u80fd\u8ba9\u8f93\u51fa\u63d0\u524d\u7ec8\u6b62\u3002<\/p>\n<h3 id=\"153\">15.3 \u9ad8\u538b\u7535\u5bb9\u989d\u5b9a\u503c\u4e0e\u5bff\u547d<\/h3>\n<p>\u989d\u5b9a\u7535\u538b\u8986\u76d6\u6b63\u5e38\u6700\u9ad8\u6bcd\u7ebf\u53ca\u8bbe\u8ba1\u77ac\u6001\uff0c\u53ef\u8bc4\u4f30400 V\u6216450 V\u7b49\u7ea7\uff0c\u518d\u6309\u6d6a\u6d8c\u7ba1\u7406\u548c\u5bff\u547d\u8981\u6c42\u786e\u5b9a\u3002220 V AC\u4e0d\u662f220 V DC\uff0c250 V\u7535\u5bb9\u4e0d\u80fd\u56e0\u4e3a\u201c\u8f93\u5165\u53ea\u6709220\u201d\u800c\u76f4\u63a5\u7528\u4e8e\u7ea6311 V\u6bcd\u7ebf\u3002<\/p>\n<p>\u7535\u5bb9\u8fd8\u8981\u6ee1\u8db3\u7eb9\u6ce2\u7535\u6d41\u3001\u9ad8\u6e29\u5bff\u547d\u3001\u5141\u8bb8\u6f0f\u7535\u548c\u673a\u68b0\u4f4d\u7f6e\u3002\u53cc\u7ba1\u56de\u6536\u52b1\u78c1\u80fd\u91cf\u4f7f\u5c40\u90e8\u6bcd\u7ebf\u7535\u6d41\u5305\u542b\u8fd4\u56de\u5206\u91cf\uff0c\u9760\u8fd1\u5f00\u5173\u7684\u9ad8\u9891\u65c1\u8def\u5e94\u4e0e\u5927\u5bb9\u91cf\u50a8\u80fd\u914d\u5408\u3002\u4e0d\u8981\u8ba9\u957f\u8d70\u7ebf\u7535\u611f\u8feb\u4f7f\u56de\u6536\u4e8c\u6781\u7ba1\u4ea7\u751f\u989d\u5916\u5c16\u5cf0\u3002<\/p>\n<h3 id=\"154-ntcmov\">15.4 \u4fdd\u9669\u3001NTC\u3001MOV\u548c\u5b89\u89c4\u7535\u5bb9<\/h3>\n<p>\u4fdd\u9669\u6309\u89c4\u5b9a\u6545\u969c\u3001\u65f6\u95f4\u7535\u6d41\u548c\u5206\u65ad\u80fd\u529b\u9009\u62e9\uff0c\u4e0d\u6309\u6b63\u5e38\u8f93\u5165\u5e73\u5747\u7535\u6d41\u673a\u68b0\u653e\u5927\u3002NTC\u9650\u5236\u4e0a\u7535\u51b2\u51fb\uff0c\u70ed\u6001\u91cd\u590d\u4e0a\u7535\u8981\u5355\u72ec\u68c0\u67e5\u3002MOV\u7684\u5de5\u4f5c\u7535\u538b\u3001\u6b8b\u538b\u3001\u80fd\u91cf\u548c\u5931\u6548\u5904\u7406\u5e94\u4e0e\u4fdd\u9669\u53ca\u6574\u673a\u6d6a\u6d8c\u8981\u6c42\u914d\u5408\u3002<\/p>\n<p>X\u7535\u5bb9\u548cY\u7535\u5bb9\u627f\u62c5\u4e0d\u540c\u4f4d\u7f6e\u4e0e\u5b89\u5168\u89d2\u8272\uff0c\u4e0d\u80fd\u4ec5\u7528\u666e\u901a\u9ad8\u8010\u538b\u7535\u5bb9\u4ee3\u66ff\u3002\u8f93\u5165EMI\u6ee4\u6ce2\u8fd8\u8981\u6838\u5bf9\u963b\u5c3c\u3001\u6f0f\u7535\u548c\u529f\u7387\u7ea7\u76f8\u4e92\u4f5c\u7528\uff1b\u6ee4\u6ce2\u5668\u4e0d\u662f\u7535\u611f\u8d8a\u5927\u3001\u7535\u5bb9\u8d8a\u5927\u5c31\u8d8a\u597d\u3002<\/p>\n<h3 id=\"155\">15.5 \u653e\u7535\u4e0e\u6d4b\u8bd5\u63a5\u5730<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>V(t)=V\u2080e<sup>\u2212t\/(RC)<\/sup>\uff1b\u3000R\u2264t\/[C ln(V\u2080\/V<sub>target<\/sub>)]<\/strong><\/p>\n<p>\u653e\u7535\u7535\u963b\u8981\u770b\u5de5\u4f5c\u7535\u538b\u3001\u6301\u7eed\u529f\u8017\u548c\u6545\u969c\uff0c\u591a\u53ea\u4e32\u8054\u53ef\u5206\u914d\u7535\u538b\u4f46\u4ecd\u9700\u6838\u5bf9\u5355\u4f53\u989d\u5b9a\u3002\u65ad\u7535\u540e\u6d4b\u91cf\u6bcd\u7ebf\u5b9e\u9645\u6b8b\u538b\uff0c\u4e0d\u628a\u7406\u8bba\u65f6\u95f4\u5f53\u6210\u53ef\u4ee5\u7acb\u5373\u89e6\u78b0\u7684\u8bc1\u660e\u3002\u793a\u6ce2\u5668\u3001\u7535\u5b50\u8d1f\u8f7d\u548c\u7535\u8111USB\u7684\u63a5\u5730\u5173\u7cfb\u4e5f\u5e94\u5728\u63a5\u7ebf\u524d\u786e\u8ba4\u3002<\/p>\n<h2 id=\"_11\">\u5341\u516d\u3001\u5e02\u7535\u7b97\u4f8b\u7684\u53d8\u538b\u5668\u4e0e\u8f93\u51fa\u7535\u611f\u7ed5\u6cd5<\/h2>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-09-winding.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" style=\"display:block;max-width:100%;height:auto;margin:26px auto\" loading=\"lazy\" alt=\"\u53cc\u7ba1\u6b63\u6fc0160:12\u53d8\u538b\u5668\u4e09\u660e\u6cbb\u7ed5\u5236\u548c68\u03bcH\u8f93\u51fa\u7535\u611f\u7ed3\u6784\" data-original=\"https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-09-winding.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<h3 id=\"161\">16.1 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id=\"162\">16.2 \u53d8\u538b\u5668\u7ebf\u5f84\u521d\u7b97<\/h3>\n<p>\u521d\u7ea7\u4f20\u80fdRMS\u6700\u574f\u7ea60.09536 A\uff0c\u52a0\u4e0a\u590d\u4f4d\u6bb5\u540e\u5b8c\u6574\u521d\u7ea7RMS\u7565\u589e\uff1b\u4ee53 A\/mm\u00b2\u521d\u7b97\u9700\u7ea60.031 mm\u00b2\u4ee5\u4e0a\u3002\u53ef\u8bc4\u4f300.22 mm\u88f8\u94dc\u5355\u7ebf\uff0c\u9762\u79ef\u7ea60.0380 mm\u00b2\uff0c\u5e76\u7528\u5b8c\u6574\u70ed\u6001\u94dc\u635f\u548c\u7a97\u53e3\u6821\u9a8c\u3002\u6b21\u7ea7RMS\u6700\u574f\u7ea61.128 A\uff0c\u521d\u7b97\u9700\u7ea60.376 mm\u00b2\uff0c\u53ef\u8bc4\u4f3012\u80a10.20 mm\uff0c\u603b\u94dc\u7ea60.377 mm\u00b2\u3002<\/p>\n<p>\u8fd9\u4e9b\u7ebf\u6750\u4ec5\u4e3a\u5019\u9009\u3002160\u531d\u521d\u7ea7\u6709\u660e\u663e\u5c42\u6570\u548c\u5c42\u95f4\u7535\u538b\uff0c\u7edd\u7f18\u5916\u5f84\u3001\u80f6\u5e26\u3001\u8fb9\u7f18\u7ed3\u6784\u4e0e\u843d\u811a\u90fd\u4f1a\u5360\u7a7a\u95f4\u3002\u7ec6\u7ebf\u7aef\u63a5\u5bb9\u6613\u88ab\u70eb\u4f24\u6216\u62c9\u65ad\uff0c\u591a\u80a1\u7ebf\u8fd8\u8981\u786e\u8ba4\u6bcf\u80a1\u53bb\u6f06\u4e0e\u6da6\u6e7f\u5b8c\u6574\uff0c\u4e0d\u53ef\u53ea\u770b\u5916\u5c42\u710a\u9521\u3002<\/p>\n<h3 id=\"163-al\">16.3 \u4e3b\u78c1\u4ef6AL\u4e0e\u88c5\u914d<\/h3>\n<p>\u76ee\u6807Lm20 mH\u3001160\u531d\u5bf9\u5e94AL781.25 nH\/\u531d\u00b2\u3002\u82e5\u5b9e\u9645\u6750\u6599\u4e0e\u78c1\u8def\u5f97\u5230\u66f4\u9ad8AL\uff0c\u52b1\u78c1\u7535\u6d41\u53ef\u51cf\u5c0f\uff0c\u4f46\u8981\u786e\u8ba4\u635f\u8017\u548c\u6750\u6599\u9891\u7387\u6027\u80fd\uff1b\u82e5\u66f4\u4f4e\u5219\u8981\u91cd\u7b97\u52b1\u78c1\u548c\u590d\u4f4d\u5668\u4ef6\u3002\u4e3b\u78c1\u4ef6\u4e0d\u5e94\u4e3a\u6ee1\u8db3\u67d0\u4e2a\u968f\u610fAL\u800c\u6a21\u4eff\u53cd\u6fc0\u52a0\u5165\u5927\u6c14\u9699\u3002<\/p>\n<p>\u88c5\u82af\u538b\u529b\u3001\u80f6\u3001\u63a5\u5408\u9762\u6c61\u67d3\u548c\u78c1\u82af\u914d\u5bf9\u90fd\u5f71\u54cd\u6d4b\u91cf\u3002\u521d\u7ea7\u5176\u4ed6\u7ed5\u7ec4\u5f00\u8def\u65f6\u6d4bLm\uff0c\u6307\u5b9a\u6b21\u7ea7\u77ed\u8def\u72b6\u6001\u6d4b\u6f0f\u611f\uff0c\u8bb0\u5f55\u9891\u7387\u3001\u5e45\u5ea6\u548c\u5939\u5177\u8865\u507f\u3002\u672a\u56fa\u5b9a\u78c1\u82af\u7528\u624b\u538b\u6d4b\u5f97\u7684\u7ed3\u679c\uff0c\u4e0d\u4ee3\u8868\u6700\u7ec8\u88c5\u914d\u89c4\u683c\u3002<\/p>\n<h3 id=\"164-68-h\">16.4 68 \u03bcH\u8f93\u51fa\u7535\u611f\u4f8b\u503c<\/h3>\n<p>\u53d6NL=32\u531d\u3001Ae,L=30 mm\u00b2\u3001Amin,L=27 mm\u00b2\uff0c\u6b63\u5e38\u6700\u9ad8IL,pk\u22482.3156 A\uff0c\u5219\u7b49\u6548\u5e73\u5747Bpk\u22480.1640 T\uff0c\u5c40\u90e8\u7ebf\u6027\u68c0\u67e5\u7ea60.1822 T\u3002\u76ee\u6807AL\u224866.41 nH\/\u531d\u00b2\uff0c\u7406\u60f3\u7b49\u6548\u603b\u6c14\u9699\u7ea60.568 mm\u3002<\/p>\n<p>\u8f93\u51fa\u7535\u611f\u82e5\u52303 A\u4fdd\u62a4\u7535\u6d41\uff0c\u6309Amin\u7ebf\u6027\u4f30\u7b97\u7ea60.2361 T\uff0c\u8fd8\u8981\u7ed3\u5408\u6750\u6599\u3001\u9ad8\u6e29\u548c\u7535\u611f\u4e0b\u964d\u66f2\u7ebf\u5224\u65ad\u3002\u4e3b\u53d8\u538b\u5668\u7684\u0394B\u548c\u8f93\u51fa\u7535\u611f\u7684Bpk\u4e0d\u80fd\u4e92\u76f8\u66ff\u4ee3\uff0c\u5373\u4f7f\u4e24\u4e2a\u78c1\u82af\u90fd\u5199\u774030 mm\u00b2\uff0c\u5b83\u4eec\u627f\u62c5\u7684\u78c1\u5316\u4efb\u52a1\u4e5f\u4e0d\u540c\u3002<\/p>\n<h3 id=\"165\">16.5 \u8f93\u51fa\u7535\u611f\u94dc\u7ebf\u4e0e\u7a97\u53e3<\/h3>\n<p>Lo,RMS\u7ea62.008 A\uff0c\u75283 A\/mm\u00b2\u521d\u7b97\u9700\u7ea60.669 mm\u00b2\u88f8\u94dc\uff0c\u53ef\u8bc4\u4f3022\u80a10.20 mm\uff0c\u603b\u94dc\u7ea60.691 mm\u00b2\u3002\u4e09\u5341\u4e8c\u531d\u8fd9\u79cd\u7ebf\u675f\u52a0\u7edd\u7f18\u53ef\u80fd\u5360\u636e\u660e\u663e\u7a97\u53e3\uff0c\u5e94\u6d4b\u5b9e\u9645\u675f\u5bbd\u539a\uff0c\u518d\u786e\u5b9a\u6bcf\u5c42\u531d\u6570\u4e0e\u603b\u9ad8\u5ea6\u3002<\/p>\n<p>\u82e5\u7528\u4e00\u6839\u8f83\u7c97\u5355\u7ebf\uff0cDCR\u53ef\u80fd\u4e0d\u9519\uff0c\u4f46\u6c14\u9699\u8fb9\u7f18\u78c1\u573a\u548c\u9ad8\u9891\u7eb9\u6ce2\u5e26\u6765\u7684\u4ea4\u6d41\u635f\u8017\u9700\u8981\u8bc4\u4f30\u3002\u4e5f\u4e0d\u80fd\u9ed8\u8ba4\u7ec6\u80a1\u8d8a\u591a\u8d8a\u597d\uff0c\u7aef\u63a5\u548c\u5de5\u827a\u4e00\u81f4\u6027\u53ef\u80fd\u6210\u4e3a\u74f6\u9888\u3002\u6700\u7ec8\u7528DCR\u3001\u5927\u7535\u6d41\u964d\u611f\u548c\u6e29\u5347\u51b3\u5b9a\u3002<\/p>\n<h3 id=\"166\">16.6 \u8f85\u52a9\u7ed5\u7ec4\u4e0d\u6cbf\u7528\u53cd\u6fc0\u516c\u5f0f<\/h3>\n<p>\u6b63\u6fc0\u8f85\u52a9\u7ed5\u7ec4\u82e5\u5728\u4e3b\u5f00\u5173\u5bfc\u901a\u671f\u95f4\u6574\u6d41\u5145\u7535\uff0c\u5176\u7535\u5bb9\u5cf0\u503c\u8fd1\u4f3cNa\/Np\u00d7Vin\u51cf\u53bb\u6574\u6d41\u538b\u964d\uff0c\u4e0d\u662f\u7b80\u5355\u6309\u8f93\u51fa\u4e94\u4f0f\u52a0\u538b\u964d\u7684\u6bd4\u4f8b\u3002\u5bf9\u4e8eNa=8\u3001Np=160\uff0c230\uff5e342 V\u6bcd\u7ebf\u65f6\u5cf0\u503c\u91cf\u7ea7\u7ea611.0\uff5e16.6 V\u3002<\/p>\n<p>\u8fd9\u4e2a\u8303\u56f4\u53ea\u6709\u5728\u6240\u9009\u63a7\u5236\u5668UVLO\u3001\u5de5\u4f5c\u7535\u6d41\u548cVCC\u4e0a\u9650\u90fd\u5141\u8bb8\u65f6\u624d\u53ef\u7528\u3002\u5145\u7535\u8109\u51b2\u5bbd\u5ea6\u3001\u8f85\u52a9\u8d1f\u8f7d\u3001\u538b\u964d\u3001\u6f0f\u611f\u4e0e\u8f7b\u8f7d\u8df3\u8109\u51b2\u8fd8\u4f1a\u6539\u53d8\u771f\u5b9eVCC\u3002\u8f85\u52a9\u7ed5\u7ec4\u5c5e\u4e8e\u4e00\u6b21\u4fa7\uff0c\u4ecd\u4e0d\u662f\u53ef\u89e6\u6478\u7684\u9694\u79bb\u8f93\u51fa\u3002<\/p>\n<h2 id=\"_12\">\u5341\u4e03\u3001\u6574\u6d41\u5668\u4e0e\u540c\u6b65\u6574\u6d41\uff1a\u7535\u6d41\u5206\u914d\u51b3\u5b9a\u635f\u8017<\/h2>\n<h3 id=\"171-dfdw\">17.1 DF\u4e0eDW\u53cd\u538b\u5206\u522b\u6765\u81ea\u54ea\u91cc<\/h3>\n<p>DW\u5728\u4e3b\u5f00\u5173\u5bfc\u901a\u65f6\u627f\u53d7SW\u7684\u6b63\u8109\u51b2\uff0c\u7406\u60f3\u91cf\u7ea7kVin\u3002DF\u5728\u590d\u4f4d\u9636\u6bb5\u627f\u53d7\u6b21\u7ea7\u53cd\u5411\u7535\u538b\uff0c\u5355\u7ba1\u7ea6\u4e3akVin\/r\uff0c\u53cc\u7ba1\u7ea6\u4e3akVin\uff1b\u518d\u52a0\u5b9e\u9645\u8282\u70b9\u538b\u964d\u3001\u6f0f\u611f\u548c\u5668\u4ef6\u52a8\u6001\u3002<\/p>\n<p>\u6539\u53d8\u590d\u4f4d\u531d\u6bd4\u4f1a\u6539\u53d8DF\u53cd\u538b\uff0c\u5374\u4e0d\u4ee5\u76f8\u540c\u6bd4\u4f8b\u6539\u53d8DW\u5bfc\u901a\u9636\u6bb5\u53cd\u538b\u3002\u4e0d\u80fd\u628a\u4e24\u4e2a\u6574\u6d41\u5668\u53ea\u56e0\u540c\u5904\u6b21\u7ea7\u5c31\u5957\u76f8\u540c\u6700\u574f\u516c\u5f0f\u3002\u7b49\u531d\u5355\u7ba1\u548c\u666e\u901a\u53cc\u7ba1\u6070\u597d\u4f7f\u5176\u7406\u60f3\u91cf\u7ea7\u63a5\u8fd1\uff0c\u4f46\u5e03\u5c40\u4e0e\u632f\u94c3\u53ef\u80fd\u4e0d\u540c\u3002<\/p>\n<h3 id=\"172-vf\">17.2 \u5e73\u5747VF\u635f\u8017<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>P<sub>DF<\/sub>\u2248V<sub>F,eq<\/sub>DI<sub>o<\/sub>\uff1b\u3000P<sub>DW<\/sub>\u2248V<sub>W,eq<\/sub>(1\u2212D)I<sub>o<\/sub><\/strong><\/p>\n<p>\u4e94\u4f0f\u7b97\u4f8b\u4e24\u53ea\u538b\u964d\u540c\u4e3a0.45 V\uff0c\u603b\u635f\u8017\u7ea60.9 W\uff1b\u6700\u4f4e\u6bcd\u7ebfDF\u7ea60.284 W\u3001DW\u7ea60.616 W\uff0c\u9ad8\u6bcd\u7ebfDW\u7ea60.709 W\u3002\u6563\u70ed\u91cd\u70b9\u4f1a\u968f\u8f93\u5165\u6539\u53d8\uff0c\u4e0d\u80fd\u53ea\u5728\u4f4e\u6bcd\u7ebf\u6d4b\u8bd5\u4e24\u53ea\u5668\u4ef6\u3002<\/p>\n<p>\u5b9e\u9645\u4e8c\u6781\u7ba1VF\u968f\u8109\u51b2\u7535\u6d41\u548c\u6e29\u5ea6\u53d8\u5316\uff0c\u7cbe\u786e\u635f\u8017\u5e94\u5bf9vF(i,T)i\u79ef\u5206\u3002\u8096\u7279\u57fa\u53cd\u5411\u6f0f\u7535\u548c\u7ed3\u7535\u5bb9\u540c\u6837\u53ef\u80fd\u8d21\u732e\u635f\u8017\uff1b\u4f4e\u538b\u5927\u7535\u6d41\u65f6\u53ef\u4ee5\u4f4eVF\u4f18\u5148\uff0c\u4f46\u4ecd\u9700\u6ee1\u8db3\u53cd\u538b\u4e0e\u70ed\u7a33\u5b9a\u3002<\/p>\n<h3 id=\"173\">17.3 \u53cd\u5411\u6062\u590d\u548c\u6362\u6d41<\/h3>\n<p>\u4e0b\u4e00\u6b21\u4e3b\u5f00\u5173\u5f00\u901a\u65f6\uff0cDW\u53ef\u80fd\u4ece\u6b63\u5411\u5bfc\u901a\u88ab\u8feb\u8f6c\u4e3a\u53cd\u5411\uff0c\u6062\u590d\u7535\u6d41\u7ecf\u53d8\u538b\u5668\u4e0e\u5f00\u5173\u4ea7\u751f\u989d\u5916\u5c16\u5cf0\u3002DF\u5173\u65ad\u65f6\u4e5f\u6709\u52a8\u6001\uff0c\u5b9e\u9645\u6b63\u6fc0\u7535\u6d41\u5305\u542b\u6f0f\u611f\u6362\u6d41\uff0c\u4e0d\u80fd\u628a\u7406\u60f3\u77ac\u95f4\u8f6c\u79fb\u5f53\u4f5c\u96f6\u635f\u8017\u3002<\/p>\n<p>\u5668\u4ef6\u7684Qrr\u3001\u7ed3\u7535\u5bb9\u3001\u6e29\u5ea6\u548c\u9a71\u52a8\u901f\u5ea6\u5171\u540c\u5f71\u54cd\u3002\u66f4\u5feb\u6805\u6781\u4e0d\u4e00\u5b9a\u964d\u4f4e\u6574\u673a\u635f\u8017\uff0c\u53ef\u80fd\u8ba9\u6062\u590d\u5cf0\u503c\u548cEMI\u66f4\u4e25\u91cd\u3002\u8c03\u8bd5\u5e94\u540c\u65f6\u89c2\u5bdf\u4e3b\u5f00\u5173\u7535\u6d41\u3001\u6b21\u7ea7SW\u4e0e\u6574\u6d41\u5668\u53cd\u538b\u3002<\/p>\n<h3 id=\"174\">17.4 \u540c\u6b65\u6574\u6d41\u7684\u4e24\u4e2a\u89d2\u8272<\/h3>\n<p>\u7528MOSFET\u5206\u522b\u66ff\u4ee3DF\u548cDW\u540e\uff0c\u4e24\u53ea\u7ba1\u4ecd\u5e94\u627f\u62c5\u4f20\u80fd\u4e0e\u7eed\u6d41\u89d2\u8272\u3002\u6b7b\u533a\u5e94\u907f\u514d\u4e24\u7ba1\u540c\u65f6\u5f62\u6210\u6b21\u7ea7\u77ed\u8def\uff0c\u4e5f\u5e94\u907f\u514d\u8fc7\u957f\u4f53\u4e8c\u6781\u7ba1\u5bfc\u901a\u3002\u5b9e\u9645\u6805\u6781\u9a71\u52a8\u53ef\u80fd\u53c2\u8003\u4e0d\u540c\u8282\u70b9\uff0c\u5fc5\u987b\u6309\u5177\u4f53\u7535\u8def\u5b89\u6392\u3002<\/p>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>P<sub>SR,cond<\/sub>\u2248I<sub>SR,rms<\/sub>\u00b2R<sub>DS(on),hot<\/sub><\/strong><\/p>\n<p>\u4f4e\u538b\u4e94\u4f0f\u7684\u6536\u76ca\u53ef\u80fd\u660e\u663e\uff0c\u4f46\u9a71\u52a8\u3001\u4f53\u4e8c\u6781\u7ba1\u3001Coss\u548c\u63a7\u5236\u6210\u672c\u4e0d\u80fd\u5ffd\u7565\u3002\u8f7b\u8f7d\u82e5\u5141\u8bb8\u7535\u6d41\u53cd\u5411\uff0c\u8f93\u51fa\u7535\u5bb9\u53ef\u80fd\u5411\u524d\u7ea7\u56de\u9001\u80fd\u91cf\uff1b\u9700\u8981\u68c0\u6d4b\u6216\u63a7\u5236\u7b56\u7565\uff0c\u4e0d\u80fd\u4ee5\u4e8c\u6781\u7ba1\u6a21\u578b\u89e3\u91ca\u6240\u6709\u540c\u6b65\u6574\u6d41\u72b6\u6001\u3002<\/p>\n<h3 id=\"175\">17.5 \u53cd\u6fc0\u540c\u6b65\u6574\u6d41\u63a7\u5236\u5668\u4e0d\u4e00\u5b9a\u9002\u7528\u4e8e\u6b63\u6fc0<\/h3>\n<p>\u53cd\u6fc0\u63a7\u5236\u5668\u8bc6\u522b\u7684\u662f\u9000\u78c1\u9001\u80fd\uff0c\u800c\u6b63\u6fc0\u6b21\u7ea7\u5305\u542b\u6b63\u5411\u4e0e\u7eed\u6d41\u4e24\u6761\u8def\u5f84\uff0c\u65f6\u5e8f\u548c\u7535\u538b\u7279\u5f81\u4e0d\u540c\u3002\u67d0\u4e9b\u81ea\u9a71\u52a8\u540c\u6b65\u6574\u6d41\u4f9d\u8d56\u53d8\u538b\u5668\u6ce2\u5f62\uff0c\u590d\u4f4d\u7ed3\u675f\u540e\u7684\u65e0\u7535\u538b\u533a\u53c8\u53ef\u80fd\u5f71\u54cd\u9a71\u52a8\u7ef4\u6301\uff0c\u5e94\u4f9d\u5177\u4f53\u65b9\u6848\u9a8c\u8bc1\u3002<\/p>\n<p>\u4e0d\u5e94\u770b\u67d0\u82af\u7247\u6807\u4e86\u201c\u540c\u6b65\u6574\u6d41\u201d\u5c31\u76f4\u63a5\u66ff\u4ee3\u6b63\u6fc0\u4e8c\u6781\u7ba1\u3002\u9700\u8981\u6838\u5bf9\u62d3\u6251\u9002\u7528\u3001\u6781\u6027\u3001\u6700\u5c0f\u8109\u5bbd\u3001\u5173\u65ad\u68c0\u6d4b\u3001\u8f7b\u8f7d\u548c\u542f\u52a8\u3002MOSFET\u4f53\u4e8c\u6781\u7ba1\u65b9\u5411\u4e5f\u8981\u5b8c\u6574\u68c0\u67e5\u3002<\/p>\n<h2 id=\"mosfet\">\u5341\u516b\u3001\u4e3bMOSFET\u3001\u590d\u4f4d\u5668\u4ef6\u4e0e\u9ad8\u8fb9\u9a71\u52a8<\/h2>\n<h3 id=\"181\">18.1 \u8010\u538b\u5148\u770b\u6b63\u5e38\u5e73\u53f0\uff0c\u518d\u52a0\u52a8\u6001<\/h3>\n<p>\u5355\u7ba1\u7b49\u531d\u590d\u4f4d\u4e3a\u7ea62Vin\uff1b\u53cc\u7ba1\u6bcf\u53ea\u7ea6Vin\uff1b\u6709\u6e90\u94b3\u4f4d\u6309\u5177\u4f53\u8fde\u63a5\u4e0eD\u8ba1\u7b97\u3002\u6f0f\u611f\u4e0e\u56de\u8def\u7535\u611f\u4f1a\u5728\u5e73\u53f0\u4e0a\u53e0\u52a0\u5c16\u5cf0\u3002\u5668\u4ef6\u8010\u538b\u9009\u578b\u5e94\u8986\u76d6\u8f93\u5165\u77ac\u6001\u3001\u4fdd\u62a4\u524d\u6ce2\u5f62\u3001\u6e29\u5ea6\u4e0e\u5408\u7406\u4f59\u91cf\uff0c\u800c\u4e0d\u662f\u5355\u7eaf\u628a\u5e73\u53f0\u4e58\u4e00\u4e2a\u968f\u610f\u7cfb\u6570\u3002<\/p>\n<p>MOSFET\u96ea\u5d29\u80fd\u529b\u4e0d\u662f\u6bcf\u5468\u671f\u6b63\u5e38\u94b3\u4f4d\u7684\u9ed8\u8ba4\u66ff\u4ee3\u7269\u3002\u5373\u4f7f\u5e73\u5747\u529f\u7387\u770b\u4f3c\u4e0d\u9ad8\uff0c\u91cd\u590d\u8109\u51b2\u3001\u7535\u6d41\u548c\u6e29\u5ea6\u7ec4\u5408\u4e5f\u53ef\u80fd\u8d85\u51fa\u80fd\u529b\u3002\u9009\u578b\u540e\u5e94\u5728\u6700\u574f\u8f93\u5165\u3001\u8d1f\u8f7d\u548c\u6545\u969c\u6062\u590d\u4e0b\u5b9e\u6d4b\u3002<\/p>\n<h3 id=\"182\">18.2 \u5bfc\u901a\u635f\u8017\u548c\u53cc\u7ba1\u4ee3\u4ef7<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>P<sub>Q,cond<\/sub>\u2248I<sub>Q,rms<\/sub>\u00b2R<sub>DS(on),hot<\/sub><\/strong><\/p>\n<p>\u53cc\u7ba1\u6709\u4e24\u53ea\u4e32\u8054\u4f20\u80fd\u5f00\u5173\uff0c\u6240\u4ee5\u603b\u5bfc\u901a\u635f\u8017\u662f\u4e24\u8005\u4e4b\u548c\uff1b\u5b83\u7684\u597d\u5904\u662f\u8f83\u4f4e\u5355\u7ba1\u8010\u538b\u53ef\u80fd\u5e26\u6765\u66f4\u5408\u9002\u7684\u963b\u503c\u4e0e\u5f00\u5173\u6027\u80fd\u3002\u4e0d\u80fd\u53ea\u6570\u5668\u4ef6\u6570\u91cf\u5224\u65ad\u6548\u7387\uff0c\u4e5f\u4e0d\u80fd\u5ffd\u7565\u9ad8\u8fb9\u9a71\u52a8\u81ea\u8eab\u8017\u7535\u3002<\/p>\n<p>\u4e94\u4f0f\u5341\u74e6\u7b97\u4f8b\u521d\u7ea7\u7535\u6d41\u8f83\u5c0f\uff0c\u8f83\u5927\u82af\u7247\u7684\u4f4eRDS(on)\u53ef\u80fd\u4e0d\u662f\u4e3b\u6536\u76ca\uff0cQg\u548c\u975e\u7ebf\u6027Coss\u53cd\u800c\u53ef\u80fd\u66f4\u91cd\u8981\u3002\u4f4e\u538b\u516d\u5341\u74e6\u5355\u7ba1\u5219\u6709\u51e0\u5b89RMS\uff0c\u5bfc\u901a\u963b\u503c\u548c\u6563\u70ed\u66f4\u503c\u5f97\u5173\u6ce8\u3002<\/p>\n<h3 id=\"183\">18.3 \u5f00\u5173\u4e0e\u6805\u6781\u635f\u8017<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>P<sub>overlap<\/sub>\u2248\u00bdV<sub>DS<\/sub>I<sub>D<\/sub>(t<sub>r<\/sub>+t<sub>f<\/sub>)f<sub>s<\/sub>\uff1b\u3000P<sub>gate<\/sub>\u2248Q<sub>g<\/sub>V<sub>drive<\/sub>f<sub>s<\/sub><\/strong><\/p>\n<p>\u7b2c\u4e00\u5f0f\u662f\u7c97\u7565\u91cd\u53e0\u4f30\u8ba1\uff0c\u4e0d\u80fd\u5b8c\u6574\u5305\u542b\u6062\u590d\u3001Coss\u548c\u6362\u6d41\u3002\u4f18\u5148\u53c2\u8003\u5668\u4ef6\u80fd\u91cf\u66f2\u7ebf\u3001\u9002\u7528\u6a21\u578b\u6216\u6b63\u786e\u5bf9\u9f50\u63a2\u5934\u7684v\u00b7i\u79ef\u5206\uff0c\u907f\u514d\u540c\u65f6\u7528Eoss\u548c\u5f00\u5173\u80fd\u91cf\u628a\u540c\u4e00\u635f\u8017\u91cd\u590d\u8ba1\u7b97\u3002<\/p>\n<p>\u6805\u6781\u9608\u503c\u8868\u793a\u5f00\u59cb\u5fae\u5f31\u5bfc\u901a\uff0c\u4e0d\u4ee3\u8868\u5145\u5206\u5f00\u901a\u3002\u9a71\u52a8\u7535\u538b\u8981\u5339\u914dRDS(on)\u6d4b\u8bd5\u6761\u4ef6\u548c\u5668\u4ef6\u4e0a\u9650\u3002\u6805\u6781\u7535\u963b\u5e94\u5728\u635f\u8017\u3001\u632f\u94c3\u548cEMI\u95f4\u8c03\u6574\uff0c\u6d4b\u5f97\u6805\u538b\u4e5f\u5fc5\u987b\u76f8\u5bf9\u8be5\u7ba1\u6e90\u6781\uff0c\u800c\u4e0d\u662f\u4efb\u610f\u5730\u3002<\/p>\n<h3 id=\"184\">18.4 \u53cc\u7ba1\u9ad8\u8fb9\u9a71\u52a8<\/h3>\n<p>QH\u6e90\u6781\u5728\u5de5\u4f5c\u4e2d\u5feb\u901f\u53d8\u5316\uff0c\u9700\u8981\u6d6e\u52a8\u9a71\u52a8\u6216\u9694\u79bb\u9a71\u52a8\uff0c\u4e0d\u80fd\u7528\u4ee5\u70ed\u5730\u4e3a\u53c2\u8003\u7684\u666e\u901aPWM\u76f4\u63a5\u63a8\u52a8\u3002\u81ea\u4e3e\u65b9\u6848\u80fd\u5426\u7a33\u5b9a\u5237\u65b0\u53d6\u51b3\u4e8e\u8282\u70b9\u4f4e\u4f4d\u65f6\u95f4\u3001\u5360\u7a7a\u6bd4\u3001\u8df3\u8109\u51b2\u548c\u542f\u52a8\u72b6\u6001\uff0c\u4e0d\u80fd\u4ec5\u770b\u5e73\u5747D\u5c0f\u4e8e0.5\u3002<\/p>\n<p>\u9694\u79bb\u9a71\u52a8\u5668\u8981\u6ee1\u8db3\u5171\u6a21\u77ac\u53d8\u3001\u4f9b\u7535\u3001\u65f6\u5e8f\u548c\u6545\u969c\u884c\u4e3a\uff1b\u95e8\u6781\u9a71\u52a8\u53d8\u538b\u5668\u9700\u8981\u81ea\u8eab\u4f0f\u79d2\u5e73\u8861\u4e0e\u8109\u51b2\u4fdd\u6301\u3002\u4e24\u7ba1\u4f20\u64ad\u5ef6\u8fdf\u5dee\u3001\u4e0a\u7535\u6b20\u538b\u548c\u5173\u65ad\u5f02\u5e38\u90fd\u9700\u6d4b\u8bd5\uff0c\u907f\u514d\u4e00\u7ba1\u4ecd\u5f00\u7740\u800c\u53e6\u4e00\u7ba1\u5df2\u7ecf\u8fdb\u5165\u590d\u4f4d\u3002<\/p>\n<h3 id=\"185\">18.5 \u6805\u6781\u9a71\u52a8\u53d8\u538b\u5668\u4e5f\u4f1a\u9971\u548c<\/h3>\n<p>\u9a71\u52a8\u53d8\u538b\u5668\u4e0d\u80fd\u4f20\u9012\u4efb\u610f\u76f4\u6d41\u5360\u7a7a\u6bd4\uff0c\u9700\u8981\u590d\u4f4d\u548c\u5408\u9002\u8109\u51b2\u9762\u79ef\u3002\u82e5\u8bbe\u8ba1\u9519\u8bef\uff0c\u6805\u6781\u53ef\u80fd\u5728\u8109\u51b2\u540e\u534a\u6bb5\u4e0b\u5782\uff0c\u6216\u5173\u65ad\u65f6\u4ea7\u751f\u8fc7\u9ad8\u8d1f\u538b\u3002\u4e3b\u53d8\u538b\u5668\u590d\u4f4d\u6b63\u786e\u4e0d\u4ee3\u8868\u9a71\u52a8\u53d8\u538b\u5668\u4e5f\u6b63\u786e\u3002<\/p>\n<p>\u9a71\u52a8\u5668\u8f93\u51fa\u963b\u6297\u3001\u7ed5\u7ec4\u6f0f\u611f\u3001\u6805\u6781\u7535\u8377\u548c\u94b3\u4f4d\u5171\u540c\u5f71\u54cd\u6ce2\u5f62\u3002\u4f7f\u7528\u9694\u76f4\u7535\u5bb9\u3001\u590d\u4f4d\u7535\u8def\u6216\u53cc\u6781\u9a71\u52a8\u65f6\uff0c\u8981\u6309\u5b8c\u6574\u56de\u8def\u8ba1\u7b97\uff0c\u4e0d\u80fd\u53ea\u62ff\u4e00\u4e2a\u531d\u6bd4\u4fbf\u8ba4\u4e3a\u9ad8\u8fb9\u9a71\u52a8\u5b8c\u6210\u3002<\/p>\n<h2 id=\"_13\">\u5341\u4e5d\u3001\u8f93\u51fa\u7535\u5bb9\uff1a\u4ece\u7535\u611f\u7eb9\u6ce2\u5230\u8d1f\u8f7d\u77ac\u6001<\/h2>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-10-output-capacitor.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" style=\"display:block;max-width:100%;height:auto;margin:26px auto\" loading=\"lazy\" alt=\"\u6b63\u6fc0\u8f93\u51fa\u7535\u5bb9\u7684\u4e09\u89d2\u7535\u6d41\u3001ESR\u7eb9\u6ce2\u4e0e\u8d1f\u8f7d\u9636\u8dc3\" data-original=\"https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-10-output-capacitor.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<h3 id=\"191\">19.1 \u7a33\u6001\u7535\u5bb9\u7535\u6d41<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>i<sub>C<\/sub>=i<sub>L<\/sub>\u2212I<sub>o<\/sub>\uff1b\u3000I<sub>C,rms<\/sub>\u2248\u0394I<sub>L<\/sub>\/\u221a12<\/strong><\/p>\n<p>\u5728CCM\u4e0e\u8fd1\u4f3c\u6052\u5b9a\u8d1f\u8f7d\u4e0b\uff0c\u7535\u5bb9\u53ea\u627f\u62c5\u7ed5Io\u4e0a\u4e0b\u6446\u52a8\u7684\u4e09\u89d2\u7eb9\u6ce2\u3002\u4e94\u4f0f\u7b97\u4f8b\u6700\u9ad8\u0394IL\u22480.6312 A\uff0c\u6240\u4ee5IC,rms\u22480.1822 A\u3002\u5b83\u548c\u53cd\u6fc0\u6b21\u7ea7\u5927\u5e45\u5145\u7535\u8109\u51b2\u7684\u7535\u5bb9\u5e94\u529b\u4e0d\u540c\uff0c\u662f\u6b63\u6fc0\u8f93\u51fa\u6ee4\u6ce2\u7684\u4e00\u4e2a\u76f4\u63a5\u4f18\u52bf\u3002<\/p>\n<p>\u8fd9\u4e2a\u516c\u5f0f\u4e0d\u80fd\u7528\u4e8e\u8f93\u51faDCM\u3001\u7a81\u53d1\u6216\u663e\u8457\u8d1f\u8f7d\u53d8\u5316\u7684\u6240\u6709\u65f6\u95f4\u6bb5\u3002\u4f4e\u9891\u5305\u7edc\u548c\u8d1f\u8f7d\u9636\u8dc3\u53ef\u80fd\u4f7f\u7535\u5bb9\u627f\u53d7\u66f4\u5927\u7535\u6d41\uff0c\u9009\u578b\u8981\u8986\u76d6\u5b9e\u9645\u6a21\u5f0f\uff0c\u800c\u4e0d\u662f\u53ea\u770b\u989d\u5b9aCCM\u3002<\/p>\n<h3 id=\"192-esr\">19.2 \u7eaf\u5bb9\u91cf\u7eb9\u6ce2\u4e0eESR\u7eb9\u6ce2<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>\u0394V<sub>C,pp<\/sub>\u2248\u0394I<sub>L<\/sub>\/(8f<sub>s<\/sub>C<sub>o<\/sub>)\uff1b\u3000\u0394V<sub>ESR,pp<\/sub>\u2248\u0394I<sub>L<\/sub>\u00b7ESR<\/strong><\/p>\n<p>\u4e94\u4f0f\u4f8b\u91c7\u7528\u6709\u6548470 \u03bcF\uff0c\u7eaf\u5bb9\u91cf\u7eb9\u6ce2\u7ea61.68 mV\uff1b\u82e5\u7ec4\u5408ESR=20 m\u03a9\uff0cESR\u5206\u91cf\u7ea612.62 mV\u3002\u4e24\u79cd\u6ce2\u5f62\u76f8\u4f4d\u548c\u5f62\u72b6\u4e0d\u540c\uff0c\u4e0d\u80fd\u628a\u7b80\u5355\u76f8\u52a0\u5f53\u7cbe\u786e\u603b\u5cf0\u5cf0\u503c\uff0c\u4f46\u53ef\u4ee5\u7528\u4e8e\u4fdd\u5b88\u91cf\u7ea7\u4f30\u8ba1\u3002<\/p>\n<p>\u5b9e\u9645\u8fd8\u5305\u542bESL\u3001\u6574\u6d41\u6362\u6d41\u5c16\u5cf0\u548c\u63a7\u5236\u5305\u7edc\u3002\u6807\u79f0\u5bb9\u91cf\u5e76\u4e0d\u4e00\u5b9a\u7b49\u4e8e\u5de5\u4f5c\u7535\u538b\u4e0b\u6709\u6548\u503c\uff0c\u9676\u74f7\u5c24\u5176\u9700\u8981\u8003\u8651\u504f\u538b\u3002\u7535\u89e3\u7535\u5bb9\u8fd8\u8981\u770b\u4f4e\u6e29ESR\u3001\u7eb9\u6ce2\u4e0e\u5bff\u547d\u3002<\/p>\n<h3 id=\"193\">19.3 \u8d1f\u8f7d\u9636\u8dc3\u6bd4\u5f00\u5173\u7eb9\u6ce2\u66f4\u82db\u523b<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>C<sub>o<\/sub>\u2265\u0394I<sub>load<\/sub>t<sub>response<\/sub>\/\u0394V<sub>allow<\/sub><\/strong><\/p>\n<p>\u8d1f\u8f7d\u589e\u52a0\u4e00\u5b89\uff0c\u82e5\u63a7\u5236\u4e0e\u7535\u611f\u54cd\u5e94\u9700\u89810.5 ms\u3001\u5141\u8bb8\u4e0b\u8dcc0.25 V\uff0c\u7b80\u5316\u9700\u6c42\u7ea62000 \u03bcF\uff0c\u660e\u663e\u5927\u4e8e470 \u03bcF\u3002\u8fd9\u4e2a\u4f30\u8ba1\u5f3a\u8c03\u65f6\u95f4\u5c3a\u5ea6\uff0c\u771f\u5b9e\u7535\u611f\u7535\u6d41\u5728\u8fc7\u7a0b\u4e2d\u9010\u6e10\u589e\u52a0\uff0c\u5e94\u4f7f\u7528\u5b9e\u9645\u6ce2\u5f62\u79ef\u5206\u5f97\u5230\u66f4\u51c6\u786e\u503c\u3002<\/p>\n<p>\u7a7a\u8f7d\u7a81\u52a0\u6ee1\u8f7d\u3001\u6ee1\u8f7d\u5378\u8f7d\u3001\u8f93\u51fa\u77ed\u8def\u89e3\u9664\u7b49\u5de5\u51b5\u90fd\u9700\u8981\u9a8c\u8bc1\u3002\u7535\u5bb9\u589e\u5927\u4f1a\u6539\u53d8\u542f\u52a8\u65f6\u95f4\u548c\u73af\u8def\u6781\u70b9\uff0c\u4e0d\u80fd\u65e0\u9650\u589e\u52a0\u4f5c\u4e3a\u6240\u6709\u95ee\u9898\u7684\u4fee\u590d\u65b9\u6cd5\u3002\u82e5\u8d1f\u8f7d\u7aef\u6709\u957f\u7ebf\u7f06\uff0c\u8fd8\u8981\u8003\u8651\u7ebf\u963b\u4e0e\u8fde\u63a5\u5668\u3002<\/p>\n<h3 id=\"194-lc\">19.4 \u540e\u7ea7LC\u6ee4\u6ce2\u4e0e\u91c7\u6837\u4f4d\u7f6e<\/h3>\n<p>\u589e\u52a0\u4e00\u4e2a\u540e\u7ea7LC\u53ef\u4ee5\u964d\u4f4e\u5f00\u5173\u7eb9\u6ce2\uff0c\u4f46\u4f1a\u5f15\u5165\u8c10\u632f\u548c\u989d\u5916\u6781\u70b9\u3002\u53cd\u9988\u53d6\u5728\u524d\u9762\u8fd8\u662f\u540e\u9762\uff0c\u4f1a\u5f71\u54cd\u7a33\u538b\u7cbe\u5ea6\u548c\u7a33\u5b9a\u6027\u3002\u4e0d\u80fd\u5728\u5df2\u7ecf\u8c03\u597d\u7684\u73af\u8def\u540e\u968f\u610f\u52a0\u7535\u611f\u548c\u5927\u7535\u5bb9\uff0c\u518d\u5047\u8bbe\u52a8\u6001\u4e0d\u53d8\u3002<\/p>\n<p>\u5982\u679c\u91c7\u7528\u8fdc\u7aef\u91c7\u6837\uff0c\u5e94\u5b9a\u4e49\u5f00\u8def\u884c\u4e3a\u3001\u566a\u58f0\u6ee4\u6ce2\u548c\u6700\u5927\u8865\u507f\u7ebf\u635f\u3002\u6d4b\u91cf\u4e94\u4f0f\u65f6\u4e5f\u8981\u6ce8\u660e\u5728PCB\u7aef\u8fd8\u662f\u8d1f\u8f7d\u7aef\uff0c\u907f\u514d\u628a\u8fde\u63a5\u5668\u538b\u964d\u548c\u7535\u6e90\u672c\u4f53\u6df7\u4e3a\u4e00\u8c08\u3002<\/p>\n<h2 id=\"dcmvodkvin\">\u4e8c\u5341\u3001\u8f7b\u8f7dDCM\uff1a\u4e0d\u80fd\u7ee7\u7eed\u65e0\u6761\u4ef6\u5957Vo=DkVin<\/h2>\n<h3 id=\"201\">20.1 \u6a21\u5f0f\u7531\u8f93\u51fa\u7535\u611f\u51b3\u5b9a<\/h3>\n<p>CCM\u65f6IL\u7684\u6700\u4f4e\u503c\u5927\u4e8e\u96f6\uff1b\u8fb9\u754c\u65f6\u6070\u597d\u5230\u96f6\uff1b\u8f7b\u8f7dDCM\u65f6\uff0c\u7535\u611f\u5148\u4e0a\u5347\uff0c\u518d\u7ecfDW\u4e0b\u964d\u5230\u96f6\uff0c\u6700\u540e\u5b58\u5728\u4e00\u6bb5\u96f6\u7535\u6d41\u65f6\u95f4\u3002\u4e3b\u78c1\u4ef6\u4ecd\u5fc5\u987b\u590d\u4f4d\uff0c\u8fd9\u4e2a\u8981\u6c42\u72ec\u7acb\u5b58\u5728\u3002<\/p>\n<p>\u5728DCM\u4e2d\uff0c\u7eed\u6d41\u4e8c\u6781\u7ba1\u4e0d\u518d\u8986\u76d6\u5168\u90e81\u2212D\u533a\u95f4\uff0c\u8f93\u51fa\u7535\u611f\u7684\u4f0f\u79d2\u53ea\u4f5c\u7528\u4e8e\u5bfc\u901a\u4e0e\u4e0b\u964d\u4e24\u6bb5\u3002\u7a7a\u95f2\u6bb5\u7535\u611f\u7535\u538b\u8fd1\u96f6\uff0c\u8f93\u51fa\u7531\u7535\u5bb9\u4f9b\u7ed9\u3002\u539f\u6765\u7684CCM\u63a8\u5bfc\u7f3a\u5c11\u8fd9\u4e2a\u9636\u6bb5\uff0c\u56e0\u6b64\u4e0d\u80fd\u7ee7\u7eed\u5f3a\u5236\u4f7f\u7528Vo=DkVin\u3002<\/p>\n<h3 id=\"202\">20.2 \u65e0\u635f\u6a21\u578b\u63a8\u5bfc<\/h3>\n<p>\u4e3a\u770b\u6e05\u5173\u7cfb\uff0c\u672c\u8282\u5ffd\u7565\u4e8c\u6781\u7ba1\u548c\u94dc\u963b\uff0c\u4ee4Vg=kVin\uff0cM=Vo\/Vg\uff0cD2\u4e3a\u4e0b\u964d\u6bb5\u5360\u6bd4\uff1a<\/p>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>I<sub>L,pk<\/sub>=(V<sub>g<\/sub>\u2212V<sub>o<\/sub>)D\/(L<sub>o<\/sub>f<sub>s<\/sub>)\uff1b\u3000D\u2082=D(1\u2212M)\/M<\/strong><\/p>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>I<sub>o<\/sub>=\u00bdI<sub>L,pk<\/sub>(D+D\u2082)\uff1b\u3000K=2L<sub>o<\/sub>f<sub>s<\/sub>\/R<sub>load<\/sub><\/strong><\/p>\n<p>\u6574\u7406\u5f97\u5230\uff1a<\/p>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>KM\u00b2=D\u00b2(1\u2212M)\uff1b\u3000M=2\/[1+\u221a(1+4K\/D\u00b2)]<\/strong><\/p>\n<p>\u8f93\u51fa\u56e0\u6b64\u4f9d\u8d56\u8d1f\u8f7d\u7535\u963b\u4e0e\u7535\u611f\uff0c\u800c\u4e0d\u518d\u53ea\u7531D\u4e0e\u531d\u6bd4\u51b3\u5b9a\u3002\u8fb9\u754c\u8981\u6c42D+D2=1\uff0c\u4ee3\u56de\u53ef\u6062\u590dM=D\uff0c\u8bf4\u660e\u4e24\u4e2a\u6a21\u578b\u5728\u8fb9\u754c\u81ea\u6d3d\u3002<\/p>\n<h3 id=\"203\">20.3 \u4e00\u4e2a\u53ef\u624b\u7b97\u7684\u5c0f\u4f8b\u5b50<\/h3>\n<p>\u4f7f\u752848 V\u8f93\u5165\u3001k=0.8\u3001Lo=150 \u03bcH\u3001100 kHz\uff0c\u8bbeD=0.20\u4e14\u7406\u60f3\u8f93\u51fa\u4e3a12 V\u3002Vg=38.4 V\uff0c\u7535\u611f\u5cf0\u503c\u7ea60.352 A\uff0c\u4e0b\u964d\u5360\u6bd4D2=0.44\uff0c\u96f6\u7535\u6d41\u6bb50.36\uff0c\u5e73\u5747\u8f93\u51fa\u7ea60.11264 A\u3002<\/p>\n<p>\u8fd9\u4e2a\u70b9Vo\/Vg=0.3125\uff0c\u660e\u663e\u4e0d\u7b49\u4e8eD=0.20\u3002\u5b83\u4e0d\u662f\u7b97\u9519\u531d\u6bd4\uff0c\u800c\u662fDCM\u8d1f\u8f7d\u5173\u7cfb\u53d1\u751f\u53d8\u5316\u3002\u76f8\u540c\u8f93\u51fa\u4e0b\u7406\u60f3CCM\u8fb9\u754c\u7535\u6d41\u7ea60.275 A\uff0c\u5f53\u524d\u8d1f\u8f7d\u4f4e\u4e8e\u8fb9\u754c\uff0c\u4e0eDCM\u5224\u65ad\u4e00\u81f4\u3002<\/p>\n<h3 id=\"204\">20.4 \u8f7b\u8f7d\u63a7\u5236\u7b56\u7565<\/h3>\n<p>\u63a7\u5236\u5668\u53ef\u80fd\u7f29\u77ed\u8109\u5bbd\u3001\u8df3\u8109\u51b2\u3001\u964d\u9891\u6216\u8fdb\u5165\u7a81\u53d1\uff1b\u5b9e\u9645\u9891\u7387\u548c\u5355\u8109\u51b2\u5cf0\u503c\u672a\u5fc5\u8ddf\u989d\u5b9a\u5de5\u51b5\u76f8\u540c\u3002\u6700\u5c0f\u5bfc\u901a\u65f6\u95f4\u9650\u5236\u53ef\u80fd\u4f7f\u6bcf\u8109\u51b2\u80fd\u91cf\u4ecd\u7136\u8fc7\u5927\uff0c\u56e0\u6b64\u8f7b\u8f7d\u4e0d\u4e00\u5b9a\u80fd\u9760\u8fde\u7eedPWM\u7ef4\u6301\u3002<\/p>\n<p>\u6d4b\u8bd5\u8f7b\u8f7d\u8981\u89c2\u5bdf\u8f93\u51fa\u8fc7\u51b2\u3001VCC\u4f9b\u7535\u3001\u53ef\u95fb\u566a\u58f0\u3001\u5f85\u673a\u529f\u8017\u548c\u53cd\u9988\u5de5\u4f5c\u7535\u6d41\u3002\u4e0d\u80fd\u56e0\u9891\u7387\u4e0d\u56fa\u5b9a\u5c31\u5224\u6545\u969c\uff0c\u4e5f\u4e0d\u80fd\u53ea\u770b\u5e73\u5747\u4e94\u4f0f\u800c\u5ffd\u7565\u6210\u7ec4\u8109\u51b2\u5e26\u6765\u7684\u4f4e\u9891\u7eb9\u6ce2\u3002<\/p>\n<h2 id=\"_14\">\u4e8c\u5341\u4e00\u3001\u5cf0\u503c\u7535\u6d41\u63a7\u5236\u4e0e\u91c7\u6837\uff1a\u770b\u5230\u7684\u4e0d\u662f\u7eaf\u52b1\u78c1\u7535\u6d41<\/h2>\n<h3 id=\"211\">21.1 \u5916\u73af\u7ed9\u6307\u4ee4\uff0c\u5185\u73af\u63a7\u5236\u5355\u8109\u51b2<\/h3>\n<p>\u7535\u538b\u5916\u73af\u6839\u636e\u8f93\u51fa\u8bef\u5dee\u63d0\u51fa\u7535\u6d41\u6307\u4ee4\uff0cPWM\u5185\u73af\u5728\u7535\u6d41\u91c7\u6837\u8fbe\u5230\u6307\u4ee4\u65f6\u5173\u65ad\u672c\u5468\u671f\u3002\u4e3b\u5f00\u5173\u7535\u6d41\u5305\u542b\u8f93\u51fa\u7535\u611f\u6298\u7b97\u5206\u91cf\u3001\u52b1\u78c1\u7535\u6d41\u4e0e\u5bc4\u751f\u6362\u6d41\u5c16\u5cf0\uff0c\u6240\u4ee5\u5cf0\u503c\u63a7\u5236\u9650\u5236\u7684\u662f\u7aef\u53e3\u7535\u6d41\uff0c\u4e0d\u662f\u76f4\u63a5\u63a7\u5236\u67d0\u4e2a\u72ec\u7acb\u52b1\u78c1\u50a8\u80fd\u91cf\u3002<\/p>\n<p>\u548c\u53cd\u6fc0\u76f8\u6bd4\uff0c\u6b63\u6fc0\u7684\u4e3b\u5f00\u5173\u7535\u6d41\u5728\u5f00\u901a\u540e\u53ef\u80fd\u7acb\u523b\u6709\u660e\u663e\u53f0\u9636\u3002CS\u524d\u6cbf\u6d88\u9690\u5fc5\u987b\u5141\u8bb8\u771f\u6b63\u7684\u53cd\u5c04\u8d1f\u8f7d\u7535\u6d41\u5b58\u5728\uff0c\u4e0d\u80fd\u628a\u6574\u4e2a\u975e\u96f6\u8d77\u70b9\u90fd\u5f53\u566a\u58f0\u6ee4\u6389\u3002\u9009\u62e9\u63a7\u5236\u5668\u65f6\u8981\u786e\u8ba4\u5176\u91c7\u6837\u8303\u56f4\u3001\u4f20\u64ad\u5ef6\u65f6\u548c\u6700\u5927\u5360\u7a7a\u6bd4\u9002\u914d\u3002<\/p>\n<h3 id=\"212\">21.2 \u91c7\u6837\u7535\u963b\u521d\u7b97<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>R<sub>CS<\/sub>\u2248V<sub>CS,limit<\/sub>\/I<sub>p,limit,target<\/sub>\uff1b\u3000P<sub>CS<\/sub>\u2248I<sub>Q,rms<\/sub>\u00b2R<sub>CS<\/sub><\/strong><\/p>\n<p>\u4f8b\u5982\u5047\u8bbe\u63a7\u5236\u5668\u6709\u6548\u9608\u503c0.5 V\uff0c\u4f4e\u538b\u7b97\u4f8b\u60f3\u5728\u7ea65 A\u521d\u7ea7\u5cf0\u503c\u9650\u5236\uff0c\u53ef\u521d\u7b970.10 \u03a9\u3002\u8fd9\u4e2a\u9608\u503c\u53ea\u662f\u8bf4\u660e\u7b97\u6cd5\uff0c\u5b9e\u9645\u8981\u8bfb\u53d6\u9009\u5b9a\u82af\u7247\u7684\u4fdd\u8bc1\u8303\u56f4\u4e0e\u659c\u5761\u6ce8\u5165\u5b9a\u4e49\u30020.1 \u03a9\u5728\u7ea62.657 A RMS\u4e0b\u635f\u8017\u7ea60.706 W\uff0c\u5df2\u7ecf\u662f\u4e0d\u53ef\u5ffd\u7565\u7684\u70ed\u6e90\uff0c\u9700\u8981\u5408\u7406\u5c01\u88c5\u6216\u5176\u4ed6\u91c7\u6837\u65b9\u5f0f\u3002<\/p>\n<p>\u5e02\u7535\u5c0f\u7535\u6d41\u7b97\u4f8b\u82e5\u4e5f\u673a\u68b0\u4f7f\u75280.1 \u03a9\uff0c\u91c7\u6837\u5e45\u5ea6\u592a\u5c0f\u800c\u566a\u58f0\u5360\u6bd4\u5f88\u9ad8\uff1b\u8981\u6309\u5b9e\u9645\u5cf0\u503c\u91cd\u65b0\u9009\u3002\u66f4\u9ad8\u963b\u503c\u53c8\u53ef\u80fd\u589e\u52a0\u538b\u964d\u4e0e\u529f\u8017\uff0c\u56e0\u6b64\u8303\u56f4\u5e94\u4e0e\u63a7\u5236\u5668\u8f93\u5165\u7075\u654f\u5ea6\u5339\u914d\u3002<\/p>\n<h3 id=\"213\">21.3 \u5cf0\u503c\u9650\u5236\u600e\u6837\u6298\u7b97\u8f93\u51fa\u7535\u6d41<\/h3>\n<p>\u7c97\u7565\u53ef\u7531IL,pk\u2248(Ip,limit\u2212Im)\/k\u53cd\u63a8\uff0c\u4f46\u542f\u52a8\u3001\u6f0f\u611f\u6362\u6d41\u3001\u91c7\u6837\u5ef6\u65f6\u548c\u52b1\u78c1\u8d77\u70b9\u90fd\u4f1a\u5f71\u54cd\u3002\u82e5\u68c0\u6d4b\u7684\u662f\u53cc\u7ba1\u67d0\u4e00\u5f00\u5173\u7535\u6d41\uff0c\u590d\u4f4d\u65f6\u56de\u9988\u7535\u6d41\u901a\u5e38\u4e0d\u8d70\u8be5\u5f00\u5173\u901a\u9053\uff0c\u5e94\u6309\u5b9e\u9645\u7535\u963b\u4f4d\u7f6e\u8bc6\u522b\u3002<\/p>\n<p>\u9010\u5468\u671f\u9650\u6d41\u4e0d\u7b49\u4e8e\u7cbe\u786e\u8f93\u51fa\u6052\u6d41\uff0cCCM\u3001DCM\u548c\u964d\u9891\u4fdd\u62a4\u4f1a\u6539\u53d8\u5e73\u5747\u8f93\u51fa\u3002\u7535\u6e90\u82e5\u8981\u4f5c\u4e3a\u6052\u6d41\u5145\u7535\u5668\uff0c\u9700\u8981\u989d\u5916\u7684\u6052\u6d41\u73af\u6216\u660e\u786e\u7b97\u6cd5\uff0c\u4e0d\u80fd\u53ea\u56e0\u4e3a\u6709CS\u7535\u963b\u5c31\u5ba3\u79f0\u7a33\u5b9a\u6052\u6d41\u3002<\/p>\n<h3 id=\"214\">21.4 \u524d\u6cbf\u5c16\u5cf0\u4e0e\u6ee4\u6ce2<\/h3>\n<p>\u4e3b\u5f00\u5173\u5f00\u901a\u65f6\u53ef\u80fd\u6709DW\u6062\u590d\u3001\u7535\u5bb9\u5145\u653e\u7535\u548c\u6f0f\u611f\u6362\u6d41\u5c16\u5cf0\u3002\u9002\u5f53\u6d88\u9690\u4e0eRC\u53ef\u907f\u514d\u8bef\u89e6\u53d1\uff0c\u4f46\u8fc7\u5927\u6ee4\u6ce2\u4f1a\u63a8\u8fdf\u771f\u6b63\u8fc7\u6d41\u68c0\u6d4b\u3002\u68c0\u67e5\u65f6\u540c\u65f6\u770b\u7535\u963b\u539f\u59cb\u6ce2\u5f62\u4e0e\u63a7\u5236\u5668CS\u5f15\u811a\uff0c\u907f\u514d\u53ea\u770b\u5230\u88ab\u6ee4\u5e73\u7684\u56fe\u5f62\u3002<\/p>\n<p>\u91c7\u6837\u7535\u963b\u68c0\u6d4b\u7ebf\u4ece\u4e24\u7aefKelvin\u5f15\u51fa\uff0c\u9a71\u52a8\u8fd4\u56de\u548c\u529f\u7387\u56de\u6d41\u4e0d\u8981\u5171\u7528\u654f\u611f\u94dc\u6bb5\u3002\u63a7\u5236\u5668\u5730\u7684\u51e0\u5341\u6beb\u4f0f\u516c\u5171\u963b\u6297\u566a\u58f0\uff0c\u53ef\u80fd\u5df2\u7ecf\u63a5\u8fd1\u5c0f\u529f\u7387\u6b63\u6fc0\u6b63\u5e38\u91c7\u6837\u91cf\u7ea7\u3002<\/p>\n<h3 id=\"215\">21.5 \u659c\u5761\u8865\u507f<\/h3>\n<p>\u5cf0\u503c\u7535\u6d41\u6a21\u5f0f\u5728\u67d0\u4e9bCCM\u6761\u4ef6\u4e0b\u53ef\u80fd\u51fa\u73b0\u9010\u5468\u671f\u4ea4\u66ff\u632f\u8361\uff0c\u9700\u8981\u4eba\u5de5\u659c\u5761\u6216\u5185\u90e8\u8865\u507f\u3002\u666e\u901a\u7b49\u531d\u590d\u4f4d\u6b63\u6fc0\u672c\u8eab\u5e38\u9650D&lt;0.5\uff0c\u4f46\u6709\u6e90\u94b3\u4f4d\u53ef\u80fd\u8d85\u8fc7\uff0c\u4e14\u5b9e\u9645\u91c7\u6837\u7ed3\u6784\u4ecd\u9700\u6309\u82af\u7247\u6a21\u578b\u6838\u5bf9\u3002<\/p>\n<p>\u91c7\u6837\u7535\u6d41\u659c\u7387\u540c\u65f6\u5305\u542b\u8f93\u51fa\u7535\u611f\u6298\u7b97\u659c\u7387\u548c\u52b1\u78c1\u659c\u7387\u3002\u4e0d\u80fd\u628a\u53cd\u6fc0\u53ea\u6309Vin\/Lm\u5f97\u5230\u7684\u4e0a\u5347\u659c\u7387\u65e0\u4fee\u6539\u5730\u7528\u4e8e\u6b63\u6fc0\u3002\u4eba\u5de5\u659c\u5761\u8fd8\u4f1a\u5f71\u54cd\u6709\u6548\u5cf0\u503c\u9650\u5236\uff0c\u8981\u5728\u6700\u5927D\u548c\u6700\u574f\u8f93\u5165\u4e00\u8d77\u68c0\u67e5\u3002<\/p>\n<h2 id=\"lc\">\u4e8c\u5341\u4e8c\u3001\u53cd\u9988\u4e0e\u73af\u8def\uff1a\u6b63\u6fc0\u7684\u8f93\u51faLC\u5e26\u6765\u4ec0\u4e48<\/h2>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-11-control.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" style=\"display:block;max-width:100%;height:auto;margin:26px auto\" loading=\"lazy\" alt=\"\u8f93\u51faLC\u3001\u91c7\u6837\u4e0e\u53cd\u9988\u8865\u507f\u7684\u5173\u7cfb\u53ca\u9891\u7387\u7279\u5f81\" data-original=\"https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-11-control.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<h3 id=\"221\">22.1 \u7535\u538b\u6a21\u5f0f\u4e0e\u7535\u6d41\u6a21\u5f0f<\/h3>\n<p>\u7535\u538b\u6a21\u5f0f\u4e2d\u5360\u7a7a\u6bd4\u76f4\u63a5\u8c03\u8282\u7ecf\u53d8\u538b\u5668\u6298\u7b97\u7684Buck\u529f\u7387\u7ea7\uff0c\u8f93\u51faLC\u5f62\u6210\u660e\u663e\u4e8c\u9636\u7279\u6027\u3002\u7535\u6d41\u6a21\u5f0f\u901a\u8fc7\u5185\u73af\u63a7\u5236\u7535\u611f\u76f8\u5173\u7535\u6d41\uff0c\u4f7f\u4f4e\u9891\u5916\u73af\u6a21\u578b\u6539\u53d8\uff0c\u4f46\u91c7\u6837\u6781\u70b9\u3001\u659c\u5761\u3001\u5149\u8026\u548c\u8f93\u51fa\u7535\u5bb9\u4ecd\u5f71\u54cd\u7a33\u5b9a\u6027\u3002<\/p>\n<p>\u4e0d\u80fd\u8bf4\u6709\u7535\u6d41\u6a21\u5f0f\u5c31\u4e0d\u9700\u8981\u8865\u507f\uff0c\u4e5f\u4e0d\u80fd\u4ece\u53cd\u6fc0\u73af\u8def\u590d\u5236\u5168\u90e8\u6570\u503c\u3002\u6b63\u6fc0\u7406\u60f3CCM\u7684Buck\u5f0f\u63a7\u5236\u5230\u8f93\u51fa\u5173\u7cfb\uff0c\u4e0d\u5177\u6709\u53cd\u6fc0CCM\u90a3\u79cd\u7531\u5ef6\u8fdf\u9001\u80fd\u4ea7\u751f\u7684\u540c\u4e00\u53f3\u534a\u5e73\u9762\u96f6\u70b9\uff1b\u771f\u5b9e\u7535\u8def\u4ecd\u53ef\u80fd\u56e0\u8f93\u5165\u6ee4\u6ce2\u3001\u5176\u4ed6\u7ea7\u8054\u6216\u63a7\u5236\u7ed3\u6784\u51fa\u73b0\u590d\u6742\u9650\u5236\u3002<\/p>\n<h3 id=\"222-lcesr\">22.2 LC\u4e0eESR\u7279\u5f81\u9891\u7387<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>f<sub>LC<\/sub>\u22481\/(2\u03c0\u221a(L<sub>o<\/sub>C<sub>o<\/sub>))\uff1b\u3000f<sub>ESR<\/sub>\u22481\/(2\u03c0ESR\u00b7C<sub>o<\/sub>)<\/strong><\/p>\n<p>\u4e94\u4f0f\u7b97\u4f8b68 \u03bcH\u3001470 \u03bcF\u65f6fLC\u2248890 Hz\uff1b20 m\u03a9 ESR\u5bf9\u5e94\u96f6\u70b9\u7ea616.93 kHz\u3002\u5b83\u4eec\u53ea\u662f\u529f\u7387\u7ea7\u4e0e\u7535\u5bb9\u76f8\u5173\u9891\u7387\uff0c\u4e0d\u662f\u81ea\u52a8\u786e\u5b9a\u7684\u73af\u8def\u4ea4\u8d8a\u9891\u7387\u3002\u4ea4\u8d8a\u5e94\u7ed3\u5408\u8f93\u5165\u8303\u56f4\u3001\u5185\u73af\u3001PWM\u589e\u76ca\u3001\u53cd\u9988\u5668\u4ef6\u548c\u671f\u671b\u76f8\u4f4d\u88d5\u91cf\u9009\u62e9\u3002<\/p>\n<h3 id=\"223-tl431\">22.3 \u4e94\u4f0fTL431\u4e0e\u5149\u8026<\/h3>\n<p>\u5e38\u89c1\u53cd\u9988\u7528TL431\u7c7b\u53c2\u8003\u6bd4\u8f83\u8f93\u51fa\u5206\u538b\uff0c\u8c03\u5236\u5149\u8026LED\uff0c\u518d\u901a\u8fc7\u4e00\u6b21\u4fa7\u63a5\u53e3\u51cf\u5c11\u6216\u589e\u52a0PWM\u3002\u5b9a\u4e49\u4e0a\u81c2Rtop\u4e0e\u4e0b\u81c2Rbot\uff1a<\/p>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>V<sub>o<\/sub>\u2248V<sub>ref<\/sub>(1+R<sub>top<\/sub>\/R<sub>bot<\/sub>)+I<sub>ref<\/sub>R<sub>top<\/sub><\/strong><\/p>\n<p>\u540d\u4e49Vref\u7ea62.495 V\u65f6\uff0c\u4e94\u4f0f\u6240\u9700\u4e0a\u4e0b\u81c2\u6bd4\u63a5\u8fd11.004\u3002\u5b9e\u9645\u9700\u68c0\u67e5\u57fa\u51c6\u7b49\u7ea7\u3001\u8f93\u5165\u7535\u6d41\u548c\u7535\u963b\u516c\u5dee\u3002\u4e94\u4f0f\u4e0bLED\u3001TL431\u4e0e\u9650\u6d41\u7535\u963b\u53ef\u7528\u7535\u538b\u6709\u9650\uff0c\u6700\u4f4e\u9634\u6781\u7535\u6d41\u4e0e\u8d1f\u8f7d\u8dcc\u843d\u65f6\u7684\u4f59\u91cf\u90fd\u8981\u786e\u8ba4\u3002<\/p>\n<h3 id=\"224-ctr\">22.4 \u5149\u8026CTR\u4e0e\u8865\u507f\u652f\u8def<\/h3>\n<p>CTR\u968f\u5206\u6863\u3001LED\u7535\u6d41\u3001\u6e29\u5ea6\u548c\u8001\u5316\u53d8\u5316\uff0c\u4e0d\u662f\u6c38\u8fdc\u4e3a\u4e00\u3002\u6700\u5dee\u4f4eCTR\u8981\u80fd\u62c9\u52a8\u63a7\u5236\u5668\u63a5\u53e3\uff0c\u9ad8CTR\u53c8\u4f1a\u6539\u53d8\u73af\u8def\u589e\u76ca\u4e0e\u9971\u548c\u6062\u590d\u3002\u628a\u5149\u8026\u6676\u4f53\u7ba1\u59cb\u7ec8\u6df1\u5ea6\u9971\u548c\uff0c\u53ef\u80fd\u5f97\u5230\u5f88\u5dee\u7684\u52a8\u6001\u3002<\/p>\n<p>\u4e32\u8054RC\u8865\u507f\u652f\u8def\u7684\u8f6c\u6298\u91cf\u7ea7\u5e38\u4e3a1\/(2\u03c0RC)\uff0c\u4f46\u5b8c\u6574\u96f6\u6781\u70b9\u53d6\u51b3\u4e8e\u5468\u56f4\u7535\u963b\u3001\u7535\u5bb9\u548c\u5668\u4ef6\u963b\u6297\u3002\u6362\u6210\u4f4eESR\u7535\u5bb9\u3001\u6362\u5149\u8026\u6216\u6362Lo\u540e\uff0c\u5e94\u91cd\u65b0\u5206\u6790\u548c\u6d4b\u8bd5\uff0c\u800c\u4e0d\u662f\u8ba4\u4e3a\u8c03\u597d\u7684\u8865\u507f\u4e0e\u8fd9\u4e9b\u5143\u4ef6\u65e0\u5173\u3002<\/p>\n<h3 id=\"225\">22.5 \u6ca1\u6709\u7f51\u7edc\u5206\u6790\u4eea\u65f6<\/h3>\n<p>\u81f3\u5c11\u505a\u6700\u4f4e\u3001\u6807\u79f0\u548c\u6700\u9ad8\u8f93\u5165\u4e0b\u7684\u8f7b\u8f7d\u5230\u6ee1\u8f7d\u9636\u8dc3\uff0c\u68c0\u67e5\u8fc7\u51b2\u3001\u6b20\u51b2\u3001\u632f\u94c3\u3001\u6062\u590d\u548c\u4fdd\u62a4\u3002\u542f\u52a8\u3001\u6389\u7535\u3001\u7a81\u53d1\u9000\u51fa\u548c\u4f4e\u6e29\u7535\u5bb9\u4e5f\u8981\u6d4b\u8bd5\u3002\u9636\u8dc3\u6b63\u5e38\u80fd\u6392\u9664\u8bb8\u591a\u660e\u663e\u95ee\u9898\uff0c\u4f46\u4e0d\u7b49\u4e8e\u5df2\u7ecf\u91cf\u5316\u76f8\u4f4d\u88d5\u91cf\u3002<\/p>\n<p>\u9700\u8981\u4e25\u683c\u52a8\u6001\u6216\u91cf\u4ea7\u4fdd\u8bc1\u65f6\uff0c\u5e94\u6309\u5408\u9002\u6ce8\u5165\u70b9\u6d4b\u73af\u8def\u3002\u6ce8\u5165\u4e0d\u5e94\u7834\u574f\u76f4\u6d41\u504f\u7f6e\uff0c\u4e5f\u4e0d\u80fd\u968f\u610f\u628a\u53cd\u9988\u65ad\u5f00\u540e\u6d4b\u5f97\u7684\u66f2\u7ebf\u5f53\u4f5c\u539f\u73af\u8def\u3002\u6d4b\u5f97\u6570\u636e\u5e94\u8bb0\u5f55\u6d4b\u8bd5\u6761\u4ef6\u548c\u63a7\u5236\u6a21\u5f0f\uff0c\u907f\u514d\u628aDCM\u4e0eCCM\u6df7\u5728\u4e00\u6761\u89e3\u91ca\u91cc\u3002<\/p>\n<h2 id=\"_15\">\u4e8c\u5341\u4e09\u3001\u542f\u52a8\u4e0e\u8f85\u52a9\u4f9b\u7535\uff1a\u6b63\u6fc0\u7684\u4f9b\u7535\u4e0d\u80fd\u7167\u642c\u53cd\u6fc0<\/h2>\n<h3 id=\"231\">23.1 \u542f\u52a8\u4e4b\u524d\u6ca1\u6709\u8f85\u52a9\u7535\u538b<\/h3>\n<p>\u63a7\u5236\u5668\u4e0e\u9a71\u52a8\u9700\u8981\u7531\u9ad8\u538b\u542f\u52a8\u5355\u5143\u3001\u542f\u52a8\u7535\u963b\u6216\u72ec\u7acb\u8f85\u52a9\u7535\u6e90\u5148\u5efa\u7acbVCC\u3002\u8fbe\u5230\u542f\u52a8\u9608\u503c\u540e\u5f00\u5173\u52a8\u4f5c\uff0c\u8f85\u52a9\u7ed5\u7ec4\u624d\u5f00\u59cb\u8865\u80fd\u3002VCC\u7535\u5bb9\u5fc5\u987b\u5728\u8fd9\u4e00\u4ea4\u63a5\u671f\u95f4\u4fdd\u6301\u9ad8\u4e8eUVLO\u5173\u65ad\u9608\u503c\u3002<\/p>\n<p>\u53cc\u7ba1\u8fd8\u6709\u9ad8\u8fb9\u9a71\u52a8\u4f9b\u7535\u6216\u9a71\u52a8\u53d8\u538b\u5668\u5efa\u7acb\u95ee\u9898\u3002\u4e3b\u63a7\u5236\u5668\u5df2\u7ecf\u8f93\u51faPWM\uff0c\u4e0d\u8868\u793aQH\u4e00\u5b9a\u5f97\u5230\u5408\u683c\u9a71\u52a8\uff1b\u67d0\u4e00\u9a71\u52a8\u6b20\u538b\u4f1a\u9020\u6210\u4e24\u7ba1\u4e0d\u5bf9\u79f0\u3002\u542f\u52a8\u6d4b\u8bd5\u5e94\u540c\u65f6\u89c2\u5bdf\u4e24\u4e2aVGS\u4e0eVCC\uff0c\u800c\u4e0d\u662f\u53ea\u6d4b\u4f4e\u8fb9\u4e00\u7ba1\u3002<\/p>\n<h3 id=\"232-vcc\">23.2 VCC\u7535\u5bb9\u548c\u542f\u52a8\u7535\u963b<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>t<sub>VCC,hold<\/sub>\u2248C<sub>VCC<\/sub>(V<sub>on<\/sub>\u2212V<sub>off<\/sub>)\/I<sub>run,net<\/sub><\/strong><\/p>\n<p>\u4f8b\u5982\u9608\u503c\u5dee5 V\u3001\u51c0\u8fd0\u884c\u7535\u6d415 mA\u300110 \u03bcF\u7535\u5bb9\uff0c\u652f\u6491\u91cf\u7ea7\u7ea610 ms\u3002\u5b9e\u9645\u7535\u6d41\u5305\u62ec\u9a71\u52a8\u6805\u6781\u3001\u9694\u79bb\u9a71\u52a8\u548c\u63a7\u5236\u5668\u672c\u8eab\uff0c\u5177\u4f53\u9608\u503c\u4e0e\u5de5\u4f5c\u7535\u6d41\u4ee5\u82af\u7247\u8d44\u6599\u4e3a\u51c6\u3002\u542f\u52a8\u7535\u963b\u8fd8\u8981\u51cf\u53bb\u5173\u65ad\u6001\u8017\u7535\u624d\u80fd\u5f97\u5230\u51c0\u5145\u7535\u7535\u6d41\u3002<\/p>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>I<sub>start<\/sub>\u2248(V<sub>bus<\/sub>\u2212V<sub>CC<\/sub>)\/R<sub>start<\/sub>\uff1b\u3000P<sub>start<\/sub>\u2248V<sub>bus<\/sub>\u00b2\/R<sub>start<\/sub><\/strong><\/p>\n<p>\u9ad8\u963b\u53ef\u964d\u4f4e\u5f85\u673a\u635f\u8017\uff0c\u5374\u5ef6\u957f\u542f\u52a8\u3002\u7535\u963b\u5de5\u4f5c\u7535\u538b\u548c\u6545\u969c\u6761\u4ef6\u53ef\u80fd\u8981\u6c42\u4e32\u8054\uff0c\u4e0d\u662f\u529f\u7387\u591f\u5c31\u884c\u3002\u5185\u90e8\u9ad8\u538b\u542f\u52a8\u5668\u53ef\u6539\u5584\u8fd9\u4e2a\u53d6\u820d\uff0c\u4f46\u8981\u6838\u5bf9\u662f\u5426\u9002\u7528\u5b9e\u9645\u6bcd\u7ebf\u3002<\/p>\n<h3 id=\"233\">23.3 \u6b63\u6fc0\u8f85\u52a9\u7ed5\u7ec4\u7684\u4e24\u79cd\u6574\u6d41\u65f6\u6bb5<\/h3>\n<p>\u82e5\u5728\u4e3b\u5bfc\u901a\u671f\u95f4\u5145\u7535\uff0c\u8f85\u52a9\u5cf0\u503c\u7531Na\/Np\u00d7Vin\u51b3\u5b9a\uff1b\u82e5\u4f7f\u7528\u590d\u4f4d\u671f\u95f4\u6574\u6d41\uff0c\u5e45\u503c\u7531\u5b9e\u9645\u590d\u4f4d\u7535\u538b\u4e0e\u531d\u6bd4\u51b3\u5b9a\u3002\u666e\u901a\u5355\u7ba1\u7b49\u531d\u6216\u53cc\u7ba1\u590d\u4f4d\u90fd\u4e0eVin\u76f8\u5173\uff0c\u4e0d\u50cf\u53cd\u6fc0\u9001\u80fd\u5e73\u53f0\u90a3\u6837\u76f4\u63a5\u8ddf\u968fVo\u52a0\u6574\u6d41\u538b\u964d\u3002<\/p>\n<p>\u8f7b\u8f7d\u8df3\u8109\u51b2\u65f6\u8f85\u52a9\u8865\u80fd\u95f4\u9694\u53d8\u957f\uff0c\u9ad8\u8f93\u5165\u65f6\u8109\u51b2\u53c8\u66f4\u7a84\uff0cVCC\u6700\u4f4e\u8c37\u503c\u53ef\u80fd\u4e0b\u964d\uff1b\u5927\u8d1f\u8f7d\u542f\u52a8\u65f6\u8f93\u51fa\u7535\u5bb9\u5145\u7535\u4f1a\u5360\u7528\u63a7\u5236\u4f59\u91cf\u3002\u53ea\u6d4b\u8f85\u52a9\u7a7a\u8f7d\u5cf0\u503c\u662f\u4e0d\u591f\u7684\uff0c\u8fd8\u8981\u6d4b\u5e26\u63a7\u5236\u5668\u4e0e\u6805\u6781\u8d1f\u8f7d\u540e\u7684\u6700\u4f4e\u503c\u3002<\/p>\n<h3 id=\"234\">23.4 \u542f\u52a8\u4e00\u4e0b\u5c31\u505c\u600e\u6837\u5b9a\u4f4d<\/h3>\n<p>\u5148\u68c0\u67e5VCC\u662f\u5426\u53cd\u590d\u8de8\u8d8aUVLO\u3002\u5982\u679cVCC\u7a33\u5b9a\u800cPWM\u88ab\u505c\uff0c\u68c0\u67e5\u8fc7\u6d41\u3001\u8fc7\u538b\u548c\u63a7\u5236\u903b\u8f91\uff1b\u5982\u679cVCC\u4e0b\u8dcc\uff0c\u68c0\u67e5\u542f\u52a8\u7535\u6d41\u3001\u8f85\u52a9\u6781\u6027\u3001\u4e8c\u6781\u7ba1\u3001\u531d\u6570\u548c\u4ea4\u63a5\u65f6\u95f4\u3002\u76f2\u76ee\u589e\u52a0\u8f93\u51fa\u7535\u5bb9\u53ef\u80fd\u8ba9\u5efa\u7acb\u8f85\u52a9\u4f9b\u7535\u66f4\u6162\uff0c\u53cd\u800c\u52a0\u91cd\u75c7\u72b6\u3002<\/p>\n<p>\u5916\u4f9b\u9694\u79bbVCC\u53ef\u4ee5\u5e2e\u52a9\u5206\u79bb\u542f\u52a8\u4e0e\u529f\u7387\u7ea7\u95ee\u9898\uff0c\u4f46\u8981\u786e\u8ba4\u4e0d\u4f1a\u5411\u5185\u90e8\u542f\u52a8\u6e90\u704c\u7535\uff0c\u5e76\u8bf4\u660e\u5916\u4f9b\u6539\u53d8\u4e86\u54ea\u4e9b\u4fdd\u62a4\u3002\u8c03\u8bd5\u7ed3\u679c\u6700\u7ec8\u4ecd\u987b\u56de\u5230\u771f\u5b9e\u4f9b\u7535\u65b9\u5f0f\u9a8c\u8bc1\u3002<\/p>\n<h2 id=\"_16\">\u4e8c\u5341\u56db\u3001\u6f0f\u611f\u3001\u5c16\u5cf0\u4e0e\u5438\u6536\uff1a\u590d\u4f4d\u6b63\u786e\u4e5f\u53ef\u80fd\u6709\u8fc7\u538b<\/h2>\n<h3 id=\"241\">24.1 \u52b1\u78c1\u80fd\u91cf\u548c\u6f0f\u611f\u80fd\u91cf\u5206\u5f00\u5904\u7406<\/h3>\n<p>\u590d\u4f4d\u7ed5\u7ec4\u6216\u53cc\u7ba1\u4e8c\u6781\u7ba1\u7ed9\u4e3b\u52b1\u78c1\u80fd\u91cf\u5efa\u7acb\u56de\u6536\u8def\u5f84\uff0c\u4f46\u6f0f\u611f\u548c\u5c40\u90e8\u8d70\u7ebf\u4ecd\u53ef\u80fd\u5728\u5f00\u5173\u77ac\u95f4\u4ea7\u751f\u989d\u5916\u7535\u538b\u3002\u5176\u80fd\u91cf\u91cf\u7ea7\u53ef\u5199\u6210\uff1a<\/p>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>E<sub>lk<\/sub>\u2248\u00bdL<sub>lk<\/sub>I<sub>commutation<\/sub>\u00b2<\/strong><\/p>\n<p>\u6b63\u6fc0\u6362\u6d41\u7535\u6d41\u5305\u542b\u8d1f\u8f7d\u53cd\u5c04\uff0c\u4e0d\u80fd\u53ea\u7528\u8f83\u5c0f\u7684\u52b1\u78c1\u5cf0\u503c\u4ee3\u66ff\u3002\u4f4e\u538b\u516d\u5341\u74e6\u7b97\u4f8b\u6709\u7ea6\u56db\u5b89\u521d\u7ea7\u6362\u6d41\uff0c\u6f0f\u611f\u5373\u4f7f\u4e0d\u5927\u4e5f\u53ef\u80fd\u6709\u660e\u663e\u5c16\u5cf0\u3002\u9ad8\u8fb9\u3001\u4f4e\u8fb9\u548c\u6b21\u7ea7\u7684\u5c40\u90e8\u5bc4\u751f\u4e5f\u5e94\u5206\u522b\u770b\u3002<\/p>\n<h3 id=\"242\">24.2 \u53cc\u7ba1\u4e0d\u662f\u5b8c\u5168\u6ca1\u6709\u5c16\u5cf0<\/h3>\n<p>\u4e24\u53ea\u4e8c\u6781\u7ba1\u7406\u60f3\u4e0a\u628a\u7aef\u70b9\u94b3\u5230\u6bcd\u7ebf\uff0c\u4f46\u5b9e\u9645\u6b63\u5411\u6062\u590d\u3001\u5e03\u7ebf\u7535\u611f\u3001\u5f00\u5173\u5ef6\u65f6\u548c\u5bc4\u751f\u7535\u5bb9\u4ecd\u4f1a\u5bfc\u81f4\u8fc7\u51b2\u3002\u56de\u8def\u8d8a\u957f\uff0c\u7406\u60f3\u94b3\u4f4d\u4e0e\u5668\u4ef6\u5b9e\u9645\u7535\u6781\u4e4b\u95f4\u5dee\u522b\u53ef\u80fd\u8d8a\u5927\u3002<\/p>\n<p>\u6d4b\u5230\u5f88\u7a84\u7684\u5c16\u5cf0\u65f6\uff0c\u5148\u68c0\u67e5\u63a2\u5934\u5171\u6a21\u80fd\u529b\u3001\u56de\u8def\u548c\u5e26\u5bbd\uff0c\u518d\u68c0\u67e5\u5143\u4ef6\u3002\u4e0d\u8981\u628a\u63a2\u5934\u957f\u5730\u7ebf\u62fe\u53d6\u7684\u5047\u5c16\u5cf0\u5f53\u6210\u9700\u8981\u5de8\u5927\u5438\u6536\u7535\u5bb9\uff0c\u4e5f\u4e0d\u8981\u628a\u771f\u5b9e\u9ad8\u9891\u8fc7\u538b\u56e0\u6301\u7eed\u77ed\u800c\u5ffd\u7565\u3002<\/p>\n<h3 id=\"243-rcrcd\">24.3 RC\u7528\u4e8e\u963b\u5c3c\uff0cRCD\u9700\u6309\u8fde\u63a5\u5b9a\u4e49<\/h3>\n<p>\u4e32\u8054RC\u8de8\u5728\u7279\u5b9a\u632f\u94c3\u7f51\u7edc\u4e0a\u63d0\u4f9b\u8017\u6563\uff0cRCD\u5229\u7528\u4e8c\u6781\u7ba1\u9009\u62e9\u6027\u94b3\u4f4d\u3002\u6240\u8de8\u8282\u70b9\u4e0d\u540c\uff0c\u7535\u5bb9\u7535\u538b\u6446\u5e45\u4e0e\u80fd\u91cf\u4e5f\u4e0d\u540c\u3002\u53cd\u6fc0\u5e38\u89c1\u7684RCD\u529f\u8017\u516c\u5f0f\u5305\u542b\u53cd\u5c04\u9001\u80fd\u5e73\u53f0\uff0c\u4e0d\u80fd\u4e0d\u6539\u7535\u538b\u5b9a\u4e49\u5c31\u7528\u4e8e\u6b63\u6fc0\u3002<\/p>\n<p>\u5982\u679cRCD\u540c\u65f6\u627f\u62c5\u4e3b\u590d\u4f4d\uff0c\u8981\u6309\u603b\u52b1\u78c1\u50a8\u80fd\u3001\u8d1f\u4f0f\u79d2\u548c\u7535\u5bb9\u5de5\u4f5c\u7535\u538b\u8bbe\u8ba1\u3002\u5982\u679c\u53ea\u627f\u62c5\u5bc4\u751f\u5c16\u5cf0\uff0c\u5219\u628a\u4e3b\u590d\u4f4d\u8def\u5f84\u4fdd\u6301\u72ec\u7acb\uff0c\u9a8c\u8bc1\u5b83\u4e0d\u4f1a\u8fc7\u65e9\u62a2\u8d70\u6b63\u5e38\u590d\u4f4d\u80fd\u91cf\u3002\u4e8c\u8005\u5fc5\u987b\u5728\u539f\u7406\u56fe\u4e0a\u8bb2\u6e05\u3002<\/p>\n<h3 id=\"244\">24.4 \u4ece\u632f\u94c3\u9891\u7387\u4f30\u8ba1\u53c2\u6570<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>f<sub>ring<\/sub>\u22481\/(2\u03c0\u221a(L<sub>par<\/sub>C<sub>par<\/sub>))<\/strong><\/p>\n<p>\u5728\u540c\u8282\u70b9\u52a0\u5165\u5df2\u77e5\u5c0f\u7535\u5bb9Ct\uff0c\u6d4b\u9891\u7387\u7531f1\u964d\u5230f2\uff0c\u53ef\u521d\u4f30\uff1a<\/p>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>C<sub>par<\/sub>\u2248C<sub>t<\/sub>\/[(f\u2081\/f\u2082)\u00b2\u22121]\uff1b\u3000L<sub>par<\/sub>\u22481\/[(2\u03c0f\u2081)\u00b2C<sub>par<\/sub>]<\/strong><\/p>\n<p>\u518d\u7528\u221a(L\/C)\u4f5c\u4e3a\u5438\u6536\u7535\u963b\u91cf\u7ea7\u8d77\u70b9\u3002\u8fd9\u4e2a\u65b9\u6cd5\u5047\u5b9a\u4e3b\u8981\u4e3a\u4e00\u4e2a\u96c6\u4e2dLC\uff0cMOSFET\u975e\u7ebf\u6027Coss\u3001\u591a\u4e2a\u5bc4\u751f\u6a21\u6001\u548c\u63a2\u5934\u8d1f\u8f7d\u4f1a\u5e26\u6765\u8bef\u5dee\uff0c\u6545\u4ec5\u4f5c\u8fed\u4ee3\u521d\u503c\u3002<\/p>\n<h3 id=\"245\">24.5 \u5438\u6536\u529f\u8017\u548c\u6e29\u5347<\/h3>\n<p>\u7535\u5bb9\u80fd\u91cf\u4e0e\u00bdC\u0394V\u00b2\u6709\u5173\uff0c\u4f46\u6574\u5468\u671f\u5145\u653e\u7535\u7684\u8017\u6563\u53d6\u51b3\u4e8e\u8fde\u63a5\uff0c\u4e0d\u80fd\u6bcf\u79cdRC\u90fd\u673a\u68b0\u5957\u540c\u4e00\u4e2a\u4e8c\u5206\u4e4b\u4e00\u3002\u589e\u52a0\u5438\u6536\u7535\u5bb9\u901a\u5e38\u6539\u5584\u6ce2\u5f62\uff0c\u5374\u53ef\u80fd\u589e\u52a0\u5f00\u5173\u635f\u8017\u3002\u5fc5\u987b\u540c\u65f6\u8bb0\u5f55\u5c16\u5cf0\u3001\u7535\u963b\u6e29\u5ea6\u3001\u4e3b\u5f00\u5173\u6e29\u5ea6\u548c\u6548\u7387\u3002<\/p>\n<p>TVS\u7684\u989d\u5b9a\u8109\u51b2\u5cf0\u503c\u529f\u7387\u4e5f\u4e0d\u662f\u5141\u8bb8\u8fde\u7eed\u8017\u6563\u3002\u6bcf\u79d2\u5341\u4e07\u6b21\u7684\u91cd\u590d\u94b3\u4f4d\u9700\u770b\u5e73\u5747\u80fd\u91cf\u3001\u52a8\u6001\u7535\u538b\u3001\u6e29\u5ea6\u548c\u53ef\u9760\u6027\u3002\u7528\u5668\u4ef6\u5ba3\u4f20\u7684\u51e0\u767e\u74e6\u6570\u5b57\u6765\u627f\u62c5\u957f\u671f\u91cd\u590d\u80fd\u91cf\uff0c\u662f\u5e38\u89c1\u8bef\u533a\u3002<\/p>\n<h2 id=\"mosfet_1\">\u4e8c\u5341\u4e94\u3001\u635f\u8017\u4e0e\u70ed\u8bbe\u8ba1\uff1a\u4e0d\u8981\u53ea\u8ba1\u7b97\u4e3bMOSFET<\/h2>\n<h3 id=\"251\">25.1 \u5efa\u7acb\u9010\u9879\u9884\u7b97<\/h3>\n<div style=\"overflow-x:auto;margin:20px 0\">\n<table style=\"width:100%;border-collapse:collapse;font-size:0.94em\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d4dce6;padding:10px;text-align:left;background:#eef4f9\">\u90e8\u4f4d<\/th>\n<th style=\"border:1px solid #d4dce6;padding:10px;text-align:left;background:#eef4f9\">\u521d\u7b97\u9879<\/th>\n<th style=\"border:1px solid #d4dce6;padding:10px;text-align:left;background:#eef4f9\">\u9700\u8fdb\u4e00\u6b65\u786e\u8ba4<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4e3bMOSFET<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6bcf\u7ba1RMS\u00b2R\u4e0e\u5f00\u5173\u80fd\u91cf<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u70ed\u6001\u3001Coss\u3001\u6062\u590d\u3001\u9a71\u52a8<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u590d\u4f4d\u5668\u4ef6<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u590d\u4f4d\u7535\u6d41\u538b\u964d\u53ca\u52a8\u6001<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6ce2\u5f62\u3001\u8026\u5408\u3001\u5c16\u5cf0<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6b21\u7ea7DF\u3001DW<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u52a0\u6743VF\u6216RMS\u00b2R<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u9ad8\u8f93\u5165\u7eed\u6d41\u3001\u6e29\u5ea6<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4e3b\u53d8\u538b\u5668<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u94dc\u635f\u3001\u78c1\u82af\u635f\u8017<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u5c42\u6b21\u3001\u9891\u7387\u3001\u6ce2\u5f62\u3001\u504f\u7f6e<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u8f93\u51fa\u7535\u611f<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">DCR\u3001\u4ea4\u6d41\u94dc\u635f\u3001\u78c1\u82af<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6c14\u9699\u6f0f\u78c1\u3001\u76f4\u6d41\u504f\u7f6e<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u5438\u6536<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6bcf\u5468\u671f\u8017\u80fd\u00d7\u9891\u7387<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u5bc4\u751f\u3001\u5e03\u5c40\u4e0e\u5bb9\u5dee<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u542f\u52a8\u548c\u63a7\u5236<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u9ad8\u538b\u53d6\u7535\u3001VCC\u4e0e\u9a71\u52a8<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u8f7b\u8f7d\u3001\u5f85\u673a\u3001\u9ad8\u8fb9<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u8f93\u5165\u524d\u7aef<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6865\u5806\u3001NTC\u3001\u6ee4\u6ce2\u3001\u653e\u7535<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u8109\u51b2\u7535\u6d41\u3001\u6e29\u5ea6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u6ca1\u6709\u8ba1\u7b97\u7684\u6570\u636e\u5e94\u6807\u201c\u5f85\u6a21\u578b\u6216\u5b9e\u6d4b\u201d\uff0c\u4e0d\u8981\u9ed8\u8ba4\u96f6\u3002\u5c24\u5176\u662f\u8f93\u51fa\u7535\u611f\u3001\u6b21\u7ea7\u7eed\u6d41\u548c\u9ad8\u8fb9\u9a71\u52a8\uff0c\u53ef\u80fd\u6bd4\u4f4e\u7535\u6d41\u5e02\u7535\u4e3bMOSFET\u66f4\u5f71\u54cd\u6548\u7387\u3002\u5927\u5e45\u63d0\u9ad8\u4e00\u4e2a\u5668\u4ef6\u989d\u5b9a\u503c\uff0c\u672a\u5fc5\u80fd\u89e3\u51b3\u6574\u673a\u70ed\u95ee\u9898\u3002<\/p>\n<h3 id=\"252\">25.2 \u70ed\u6001\u94dc\u963b<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>R(T)\u2248R\u2082\u2080[1+0.00393(T\u221220 \u2103)]<\/strong><\/p>\n<p>\u4e8c\u5341\u5ea6\u5230\u4e00\u767e\u5ea6\uff0c\u94dc\u963b\u7ea6\u589e\u52a031%\u3002\u4f4e\u538b\u516d\u5341\u74e6\u8f93\u51fa\u7535\u611f\u5982\u679c\u5ba4\u6e29\u7535\u963b\u4e3a40 m\u03a9\uff0c\u4e94\u5b89\u94dc\u635f\u7ea61 W\uff0c\u70ed\u6001\u8fd8\u4f1a\u589e\u52a0\uff1b\u8fd9\u6bd4\u53ea\u770b\u7535\u611f\u7eb9\u6ce2\u7684\u51e0\u767e\u6beb\u5b89\u66f4\u91cd\u8981\u3002<\/p>\n<p>\u9ad8\u9891\u4ea4\u6d41\u7535\u963b\u589e\u91cf\u6765\u81ea\u8d8b\u80a4\u3001\u90bb\u8fd1\u6548\u5e94\u3001\u5206\u5c42\u548c\u6c14\u9699\u78c1\u573a\u3002CCM\u7535\u611f\u6709\u5927\u76f4\u6d41\u52a0\u5c0f\u7eb9\u6ce2\uff0c\u53d8\u538b\u5668\u5bfc\u7ebf\u5219\u4ecd\u627f\u53d7\u8109\u51b2\uff0c\u4e0d\u80fd\u4e00\u6982\u8bf4CCM\u4ea4\u6d41\u635f\u8017\u5f88\u5c0f\u3002\u94dc\u7b94\u3001\u5229\u5179\u7ebf\u548c\u666e\u901a\u5e76\u80a1\u9700\u6309\u4e0d\u540c\u7ed3\u6784\u8bc4\u4f30\u3002<\/p>\n<h3 id=\"253\">25.3 \u78c1\u82af\u635f\u8017\u4e0e\u5355\u4f4d\u4f53\u79ef\u6570\u636e<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>P<sub>core<\/sub>\u2248P<sub>v<\/sub>V<sub>e<\/sub><\/strong><\/p>\n<p>Pv\u5fc5\u987b\u5339\u914d\u6750\u6599\u3001\u9891\u7387\u3001\u6e29\u5ea6\u3001\u6ce2\u5f62\u4ee5\u53caB\u7684\u5b9a\u4e49\u3002\u6b63\u6fc0\u590d\u4f4d\u6ce2\u5f62\u548c\u8f93\u51fa\u7535\u611f\u76f4\u6d41\u504f\u7f6e\u4e0d\u540c\uff0c\u4e0d\u80fd\u540c\u53d6\u4e00\u5f20\u96f6\u504f\u6b63\u5f26\u66f2\u7ebf\u5c31\u5ba3\u5e03\u51c6\u786e\u3002\u9971\u548c\u662f\u77ac\u65f6\u8fb9\u754c\uff0c\u78c1\u82af\u635f\u8017\u662f\u6301\u7eed\u70ed\u95ee\u9898\uff0c\u4e8c\u8005\u90fd\u8981\u8fc7\u3002<\/p>\n<p>\u78c1\u82af\u8868\u9762\u6e29\u5ea6\u4e0d\u662f\u7ed5\u7ec4\u5185\u90e8\u70ed\u70b9\uff0c\u6c14\u9699\u9644\u8fd1\u5bfc\u7ebf\u53ef\u80fd\u66f4\u70ed\u3002\u5fc5\u8981\u65f6\u91c7\u7528\u7535\u963b\u6cd5\u3001\u5408\u9002\u70ed\u7535\u5076\u548c\u70ed\u6a21\u578b\u4ea4\u53c9\u5224\u65ad\u3002\u88ab\u94dc\u5e26\u6216\u80f6\u5c01\u4f4f\u7684\u70ed\u70b9\uff0c\u5728\u70ed\u50cf\u56fe\u4e0a\u4e5f\u672a\u5fc5\u76f4\u63a5\u53ef\u89c1\u3002<\/p>\n<h3 id=\"254\">25.4 \u6548\u7387\u4e0e\u6d4b\u91cf\u8bef\u5dee<\/h3>\n<p>\u4ea4\u6d41\u8f93\u5165\u4f7f\u7528\u6709\u529f\u529f\u7387\uff0c\u8f93\u51fa\u5728\u89c4\u5b9a\u70b9\u6d4b\u7535\u538b\u7535\u6d41\uff1b\u8bf4\u660e\u662f\u5426\u5305\u542b\u7ebf\u7f06\u3002\u5c0f\u529f\u7387\u8f7b\u8f7d\u65f6\u51e0\u5341\u6beb\u74e6\u8bef\u5dee\u5c31\u4f1a\u660e\u663e\u5f71\u54cd\u6548\u7387\uff0c\u91cf\u7a0b\u548c\u4eea\u5668\u8981\u5339\u914d\u3002\u70ed\u7a33\u6001\u540e\u518d\u6bd4\u8f83\u4e0d\u540c\u8f93\u5165\u4e0e\u8d1f\u8f7d\uff0c\u4e0d\u628a\u51b7\u673a\u6548\u7387\u548c\u70ed\u6001\u6ce2\u5f62\u62fc\u6210\u540c\u4e00\u7ed3\u8bba\u3002<\/p>\n<p>\u5f00\u5173\u80fd\u91cf\u6d4b\u91cf\u9700\u8981\u6821\u6b63\u63a2\u5934\u65f6\u95f4\u504f\u79fb\u3002\u51e0\u7eb3\u79d2\u5bf9\u9f50\u8bef\u5dee\u53ef\u80fd\u6539\u53d8\u79ef\u5206\u7b26\u53f7\u6216\u6570\u503c\uff0c\u4e0d\u80fd\u770b\u5230\u4e00\u6761v\u00b7i\u66f2\u7ebf\u5c31\u5f53\u7edd\u5bf9\u771f\u503c\u3002\u5de5\u7a0b\u8ba1\u7b97\u3001\u8f93\u5165\u8f93\u51fa\u529f\u7387\u5dee\u548c\u70ed\u5206\u5e03\u5e94\u76f8\u4e92\u652f\u6301\u3002<\/p>\n<h3 id=\"255-emi\">25.5 \u6563\u70ed\u4e0eEMI\u7684\u53d6\u820d<\/h3>\n<p>\u6f0f\u6781\u94dc\u94fa\u5927\u6709\u5229\u4e8e\u6563\u70ed\uff0c\u5374\u589e\u52a0\u7535\u573a\u8026\u5408\uff1b\u5f00\u5173\u66f4\u6162\u53ef\u51cfEMI\uff0c\u5374\u589e\u52a0\u91cd\u53e0\u635f\u8017\uff1b\u521d\u6b21\u7ea7\u66f4\u7d27\u8026\u5408\u80fd\u964d\u6f0f\u611f\uff0c\u5374\u53ef\u80fd\u589e\u5171\u6a21\u7535\u5bb9\u3002\u4e0d\u5b58\u5728\u4e00\u4e2a\u65cb\u94ae\u540c\u65f6\u628a\u6240\u6709\u6307\u6807\u53d8\u597d\uff0c\u4f18\u5316\u5e94\u56f4\u7ed5\u5b9e\u9645\u9650\u5236\u8fdb\u884c\u3002<\/p>\n<p>\u6d4b\u8bd5\u5e94\u4f7f\u7528\u771f\u5b9e\u5916\u58f3\u3001\u5b89\u88c5\u65b9\u5411\u3001\u73af\u5883\u548c\u51b7\u5374\u3002\u5f00\u653e\u684c\u9762\u4e0a\u6e29\u5ea6\u6b63\u5e38\uff0c\u4e0d\u7b49\u4e8e\u5c01\u95ed\u58f3\u4f53\u91cc\u4e5f\u6b63\u5e38\u3002\u8bb0\u5f55\u70ed\u70b9\u4e0e\u5141\u8bb8\u7ed3\u6e29\uff0c\u4fdd\u7559\u5668\u4ef6\u4e0e\u6750\u6599\u6279\u6b21\uff0c\u6709\u5229\u4e8e\u53d1\u73b0\u957f\u671f\u4e00\u81f4\u6027\u95ee\u9898\u3002<\/p>\n<h2 id=\"_17\">\u4e8c\u5341\u516d\u3001\u4fdd\u62a4\u4e0e\u5f02\u5e38\u4f0f\u79d2\uff1a\u6b63\u5e38\u7a33\u6001\u4e0d\u662f\u6700\u574f\u60c5\u51b5<\/h2>\n<h3 id=\"261\">26.1 \u6700\u5927\u5360\u7a7a\u6bd4\u4e0e\u6700\u5927\u4f0f\u79d2\u5206\u522b\u9650\u5236<\/h3>\n<p class=\"formula\" style=\"padding:15px 18px;background:#edf4fc;border-left:4px solid #1769bb;overflow-x:auto;line-height:1.8\"><strong>\u0394B<sub>\u5f02\u5e38,local<\/sub>=V<sub>in,max<\/sub>D<sub>\u5f02\u5e38,max<\/sub>\/(f<sub>s,min<\/sub>N<sub>p<\/sub>A<sub>min<\/sub>)<\/strong><\/p>\n<p>\u7b49\u531d\u590d\u4f4d\u53ef\u7528D&lt;0.5\u9632\u6b62\u590d\u4f4d\u65f6\u95f4\u4e0d\u8db3\uff0c\u4f46\u4e0d\u4fdd\u8bc1\u4efb\u610f\u8f93\u5165\u4e0e\u9891\u7387\u4e0b\u0394B\u90fd\u5b89\u5168\u3002\u4f4e\u538b\u7b97\u4f8b\u82e560 V\u3001D=0.45\u3001\u6700\u4f4e90 kHz\u3001Np20\u3001Amin72 mm\u00b2\uff0c\u5f02\u5e38\u78c1\u5bc6\u53d8\u5316\u7ea60.2083 T\uff0c\u660e\u663e\u9ad8\u4e8e\u6b63\u5e380.1081 T\u3002<\/p>\n<p>\u4e94\u4f0f\u5e02\u7535\u7b97\u4f8b\u82e5342 V\u3001D=0.45\u300190 kHz\u3001Np160\u3001Amin27 mm\u00b2\uff0c\u5219\u7ea60.3958 T\uff0c\u53ef\u80fd\u5df2\u8d85\u6750\u6599\u9ad8\u6e29\u5b89\u5168\u8303\u56f4\u3002\u56e0\u6b64DMAX=0.45\u53ea\u89e3\u51b3\u90e8\u5206\u95ee\u9898\uff0c\u8fd8\u9700\u8f93\u5165\u524d\u9988\u3001\u4f0f\u79d2\u94b3\u4f4d\u3001\u5408\u9002\u7535\u6d41\u9650\u5236\u4e0e\u5173\u65ad\u54cd\u5e94\uff0c\u5e76\u9a8c\u8bc1\u542f\u52a8\u8109\u51b2\u3002<\/p>\n<h3 id=\"262\">26.2 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id=\"263\">26.3 \u8f93\u51fa\u7535\u611f\u9971\u548c\u4e0e\u8fc7\u6d41<\/h3>\n<p>\u77ed\u8def\u6216\u8d1f\u8f7d\u7a81\u589e\u65f6Lo\u5cf0\u503c\u53ef\u80fd\u9ad8\u4e8e\u6b63\u5e38\u989d\u5b9a\u5cf0\u503c\uff0c\u7535\u611f\u4e0b\u964d\u4f1a\u4f7f\u7535\u6d41\u66f4\u5feb\u4e0a\u5347\u3002\u5fc5\u987b\u4ee5\u4fdd\u62a4\u524d\u6700\u5927\u7535\u6d41\u6838\u5bf9\u6750\u6599\u3001\u6c14\u9699\u3001\u6e29\u5ea6\u548c\u964d\u611f\u66f2\u7ebf\u3002\u4e94\u4f0f\u4f8b\u6b63\u5e38\u5c40\u90e8B\u7ea60.182 T\uff0c\u52303 A\u5c31\u7ea60.236 T\uff0c\u4e0d\u80fd\u5ffd\u7565\u3002<\/p>\n<p>\u786c\u4ef6\u9650\u6d41\u3001\u964d\u9891\u3001\u6253\u55dd\u6216\u9501\u5b9a\u9700\u8981\u9002\u914d\u62d3\u6251\u3002\u53cc\u7ba1\u4efb\u4f55\u4e00\u7ba1\u9a71\u52a8\u5f02\u5e38\u90fd\u53ef\u80fd\u8ba9\u56de\u9988\u8def\u5f84\u6539\u53d8\uff0c\u4fdd\u62a4\u4e0d\u4ec5\u662f\u8f93\u51fa\u77ed\u8def\u4e00\u9879\u3002\u4e3b\u5f00\u5173\u5931\u6548\u540e\u8f93\u5165\u4fdd\u9669\u548c\u5176\u4ed6\u7ed3\u6784\u627f\u62c5\u4ec0\u4e48\u540e\u679c\uff0c\u4e5f\u8981\u5728\u4ea7\u54c1\u9a8c\u8bc1\u4e2d\u660e\u786e\u3002<\/p>\n<h3 id=\"264\">26.4 \u53cd\u9988\u5f00\u8def\u4e0e\u8f93\u51fa\u8fc7\u538b<\/h3>\n<p>\u5206\u538b\u3001\u5149\u8026\u6216\u53cd\u9988\u8fde\u63a5\u5f00\u8def\u53ef\u80fd\u4f7f\u63a7\u5236\u5668\u8981\u6c42\u6700\u5927\u9001\u80fd\u3002\u72ec\u7acbOVP\u5e94\u5728\u8f93\u51fa\u7535\u5bb9\u548c\u8d1f\u8f7d\u8d85\u8fc7\u53ef\u63a5\u53d7\u7535\u538b\u524d\u52a8\u4f5c\u3002\u901a\u8fc7\u8f85\u52a9\u7ed5\u7ec4\u4f30\u7b97\u8fc7\u538b\u65f6\uff0c\u6b63\u6fc0\u8f85\u52a9\u7535\u538b\u5e38\u53d7\u8f93\u5165\u5f71\u54cd\uff0c\u4e0d\u80fd\u7167\u6284\u53cd\u6fc0\u8ddf\u968f\u8f93\u51fa\u7684\u7b97\u6cd5\u3002<\/p>\n<p>\u4e94\u4f0f\u8f93\u51fa\u7684\u8010\u538b\u4f59\u91cf\u901a\u5e38\u4e0d\u5927\uff0c\u8d1f\u8f7d\u5378\u8f7d\u65f6Lo\u50a8\u80fd\u4e5f\u4f1a\u62ac\u5347\u8f93\u51fa\u3002\u5e94\u533a\u5206\u6b63\u5e38\u52a8\u6001\u8fc7\u51b2\u4e0e\u53cd\u9988\u6545\u969c\uff0c\u5206\u522b\u8bbe\u8ba1\u8865\u507f\u548c\u4fdd\u62a4\u9608\u503c\u3002\u8fc7\u538b\u5668\u4ef6\u6709\u635f\u8017\u3001\u5bb9\u5dee\u548c\u54cd\u5e94\uff0c\u4e0d\u662f\u52a0\u4e00\u53ea\u9f50\u7eb3\u5c31\u5168\u90e8\u89e3\u51b3\u3002<\/p>\n<h3 id=\"265\">26.5 \u6b20\u538b\u3001\u6389\u7535\u4e0e\u6253\u55dd\u6062\u590d<\/h3>\n<p>\u8f93\u5165\u4e0b\u964d\u5bfc\u81f4D\u589e\u52a0\uff0c\u5148\u89e6\u5230\u8c03\u8282\u6216\u590d\u4f4d\u9650\u5236\u540e\u53ef\u80fd\u6389\u538b\u3002UVLO\u9700\u8981\u6ede\u56de\uff0c\u9632\u6b62\u5728\u8fb9\u754c\u53cd\u590d\u5f00\u5173\u3002\u4fdd\u6301\u65f6\u95f4\u7531\u6bcd\u7ebf\u50a8\u80fd\u3001\u8f93\u51fa\u50a8\u80fd\u3001\u63a7\u5236VCC\u548c\u6700\u4f4e\u53ef\u7528\u8109\u5bbd\u5171\u540c\u51b3\u5b9a\u3002<\/p>\n<p>\u8f93\u51fa\u77ed\u8def\u65f6\u7535\u538b\u4f4e\uff0c\u8f93\u51fa\u7535\u611f\u7eed\u6d41\u4e0b\u964d\u4e5f\u53ef\u80fd\u8f83\u6162\uff0c\u5e94\u9a8c\u8bc1\u8fde\u7eed\u9650\u6d41\u5468\u671f\u7684\u5e73\u5747\u80fd\u91cf\u548c\u5668\u4ef6\u6e29\u5347\u3002\u6253\u55dd\u51cf\u5c11\u5e73\u5747\u70ed\u4e0d\u7b49\u4e8e\u6bcf\u6b21\u542f\u52a8\u8109\u51b2\u90fd\u5b89\u5168\uff0c\u5355\u6b21\u6700\u5927\u5e94\u529b\u540c\u6837\u8981\u770b\u3002<\/p>\n<h2 id=\"pcb\">\u4e8c\u5341\u4e03\u3001PCB\u5e03\u5c40\uff1a\u56de\u6d41\u8def\u5f84\u6bd4\u5730\u7b26\u53f7\u66f4\u771f\u5b9e<\/h2>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-12-layout.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" style=\"display:block;max-width:100%;height:auto;margin:26px auto\" loading=\"lazy\" alt=\"\u5355\u7ba1\u548c\u53cc\u7ba1\u6b63\u6fc0\u7684\u5173\u952e\u529f\u7387\u56de\u8def\u3001\u53cd\u9988\u533a\u4e0e\u9694\u79bb\u8fb9\u754c\" data-original=\"https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-12-layout.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<h3 id=\"271\">27.1 \u8f93\u5165\u4f20\u80fd\u56de\u8def<\/h3>\n<p>\u8f93\u5165\u9ad8\u9891\u65c1\u8def\u3001\u4e3b\u5f00\u5173\u4e0e\u521d\u7ea7\u5f62\u6210\u5feb\u901f\u8109\u51b2\u56de\u8def\uff0c\u5e94\u77ed\u800c\u7d27\u51d1\u3002\u53cc\u7ba1\u591a\u4e00\u4e2a\u9ad8\u8fb9\u5f00\u5173\u4e0e\u8fde\u63a5\u8282\u70b9\uff0c\u4e0d\u80fd\u4e3a\u4e86\u753b\u5f97\u6574\u9f50\u800c\u628a\u56de\u8def\u7ed5\u677f\u4e00\u5708\u3002\u5c40\u90e8\u65c1\u8def\u548c\u50a8\u80fd\u7535\u5bb9\u5206\u5de5\u660e\u786e\uff0c\u989d\u5b9a\u7535\u538b\u4e0e\u8109\u51b2\u80fd\u529b\u8981\u591f\u3002<\/p>\n<p>\u6f0f\u6781\u548c\u521d\u7ea7\u9ad8dv\/dt\u8282\u70b9\u4e0d\u8981\u8de8\u8fc7\u53cd\u9988\u3001\u5149\u8026\u6216\u8f93\u51fa\u91c7\u6837\u4e0b\u65b9\u3002\u6563\u70ed\u94dc\u7684\u9762\u79ef\u4e0e\u4f4d\u7f6e\u9700\u8981\u8003\u8651\u7535\u5bb9\u8026\u5408\u3002\u529f\u7387\u56de\u8def\u6700\u77ed\u4e0d\u4ee3\u8868\u53ef\u4ee5\u7a7f\u8d8a\u5b89\u5168\u9694\u79bb\u533a\uff0c\u4e8c\u8005\u9700\u540c\u65f6\u6ee1\u8db3\u3002<\/p>\n<h3 id=\"272\">27.2 \u590d\u4f4d\u56de\u8def<\/h3>\n<p>\u5355\u7ba1\u590d\u4f4d\u7ed5\u7ec4\u3001DR\u4e0e\u8f93\u5165\u7535\u5bb9\u6784\u6210\u56de\u9001\u56de\u8def\uff0c\u53cc\u7ba1\u5219\u662fDA\u3001\u521d\u7ea7\u3001DB\u4e0e\u5c40\u90e8\u8f93\u5165\u7535\u5bb9\u3002\u5173\u65ad\u7535\u6d41\u5fc5\u987b\u6709\u4f4e\u5bc4\u751f\u8def\u5f84\uff0c\u5426\u5219\u94b3\u4f4d\u70b9\u4e0e\u5668\u4ef6\u7535\u6781\u4e4b\u95f4\u4f1a\u6709\u989d\u5916\u8fc7\u538b\u3002<\/p>\n<p>\u590d\u4f4d\u4e8c\u6781\u7ba1\u9760\u8fd1\u5bf9\u5e94\u8282\u70b9\u4e0e\u7535\u5bb9\u5e03\u7f6e\uff0c\u522b\u628a\u5b83\u4eec\u653e\u5728\u677f\u8fb9\u518d\u62c9\u957f\u7ebf\u56de\u6765\u3002\u82e5\u78c1\u4ef6\u590d\u4f4d\u7ed5\u7ec4\u672c\u8eab\u8026\u5408\u5dee\uff0c\u4e5f\u9700\u4ece\u7ed5\u7ec4\u7ed3\u6784\u6539\u5584\uff1bPCB\u53ea\u80fd\u964d\u4f4e\u5916\u90e8\u5bc4\u751f\uff0c\u4e0d\u80fd\u6d88\u9664\u5185\u90e8\u6f0f\u611f\u3002<\/p>\n<h3 id=\"273\">27.3 \u6b21\u7ea7\u6362\u6d41\u56de\u8def<\/h3>\n<p>DF\u3001DW\u548c\u6b21\u7ea7\u7ed5\u7ec4\u5f62\u6210\u5feb\u901f\u6362\u6d41\u533a\u57df\uff0cLo\u7535\u6d41\u5927\u4f53\u8fde\u7eed\uff0c\u4f46\u4eceDF\u5207\u5230DW\u7684\u5c40\u90e8\u56de\u8def\u7535\u6d41\u53d8\u5316\u5f88\u5feb\u3002\u8f93\u51fa\u7535\u5bb9\u3001Lo\u4e0e\u8d1f\u8f7d\u8fd4\u56de\u4e5f\u9700\u4f4e\u963b\u8fde\u63a5\u3002\u628a\u53cd\u9988\u5730\u63a5\u5728DW\u529f\u7387\u56de\u6d41\u957f\u94dc\u7ebf\u4e0a\uff0c\u4f1a\u5f15\u5165\u865a\u5047\u8f93\u51fa\u8bef\u5dee\u3002<\/p>\n<p>\u53cd\u9988\u4ece\u8f93\u51fa\u7535\u5bb9\u5b89\u9759\u7aef\u70b9\u6216\u89c4\u5b9a\u8d1f\u8f7d\u70b9\u72ec\u7acb\u53d6\u6837\u3002\u7535\u5bb9\u9ad8\u9891\u65c1\u8def\u8981\u9760\u8fd1\u7535\u6d41\u8def\u5f84\uff0c\u800c\u4e0d\u662f\u4ec5\u5728\u677f\u4e0a\u4efb\u610f\u4f4d\u7f6e\u591a\u653e\u51e0\u9897\u3002\u6b21\u7ea7SW\u8282\u70b9\u4e0d\u5e94\u94fa\u5f97\u8fc7\u5927\uff0c\u907f\u514d\u8026\u5408\u5230\u8f93\u51fa\u548c\u5916\u90e8\u7ebf\u7f06\u3002<\/p>\n<h3 id=\"274-cs\">27.4 \u6805\u6781\u548cCS<\/h3>\n<p>\u6bcf\u53eaMOSFET\u7684\u9a71\u52a8\u56de\u8def\u90fd\u4ee5\u5176\u6e90\u6781\u4e3a\u53c2\u8003\uff0c\u9ad8\u8fb9\u9a71\u52a8\u5c24\u5176\u9700\u8981\u77ed\u8fde\u63a5\u3002\u63a7\u5236\u5668\u53bb\u8026\u8d34\u8fd1\u5f15\u811a\uff0cCS\u6ee4\u6ce2\u8d34\u8fd1\u8f93\u5165\u7aef\uff0c\u91c7\u6837\u7535\u963b\u91c7\u7528Kelvin\u3002\u9a71\u52a8\u8fd4\u56de\u4e0d\u5e94\u7ecf\u8fc7\u654f\u611f\u8bef\u5dee\u653e\u5927\u5668\u5730\u3002<\/p>\n<p>\u6805\u6781\u7535\u963b\u653e\u5728\u5408\u9002\u4f4d\u7f6e\u6291\u5236\u5c40\u90e8\u632f\u94c3\uff0c\u6805\u6e90\u4e0b\u62c9\u4fdd\u8bc1\u9a71\u52a8\u672a\u5efa\u7acb\u65f6\u5173\u65ad\u3002\u4e24\u7ba1\u65f6\u5e8f\u5339\u914d\u4e0d\u4ec5\u7531\u8f6f\u4ef6\u4fe1\u53f7\u51b3\u5b9a\uff0c\u4e5f\u5305\u62ec\u9a71\u52a8\u5668\u5ef6\u65f6\u3001\u8d70\u7ebf\u3001\u5668\u4ef6\u6805\u7535\u8377\u548c\u4f9b\u7535\u3002\u5e03\u5c40\u540e\u4ecd\u987b\u6d4b\u5b9e\u9645VGS\u3002<\/p>\n<h3 id=\"275\">27.5 \u9694\u79bb\u533a\u548c\u5c4f\u853d<\/h3>\n<p>\u521d\u6b21\u7ea7\u7535\u6c14\u95f4\u9699\u3001\u722c\u7535\u4e0e\u56fa\u4f53\u7edd\u7f18\u5e94\u6309\u4ea7\u54c1\u6807\u51c6\u3001\u5de5\u4f5c\u7535\u538b\u3001\u77ac\u6001\u3001\u73af\u5883\u3001\u6750\u6599\u548c\u6d77\u62d4\u8bbe\u8ba1\u3002\u5f00\u69fd\u53ef\u4ee5\u6539\u53d8\u67d0\u4e9b\u8868\u9762\u8def\u5f84\uff0c\u4f46\u4e0d\u81ea\u52a8\u8865\u6551\u53d8\u538b\u5668\u5185\u90e8\u3001\u5149\u8026\u811a\u95f4\u6216\u5f15\u7ebf\u5957\u7ba1\u4e0d\u8db3\u3002\u666e\u901a\u963b\u710a\u4e0d\u80fd\u65e0\u6761\u4ef6\u5f53\u4f5c\u5b89\u5168\u5c4f\u969c\u3002<\/p>\n<p>\u5c4f\u853d\u7ed5\u7ec4\u3001Y\u7535\u5bb9\u4e0e\u5171\u6a21\u6ee4\u6ce2\u6539\u53d8\u9ad8\u9891\u56de\u6d41\uff0c\u4e5f\u4f1a\u5f71\u54cd\u89e6\u6478\u7535\u6d41\u3002\u4e0d\u8981\u628a\u521d\u6b21\u7ea7\u5730\u901a\u8fc7\u666e\u901a\u5bfc\u7ebf\u8fde\u63a5\u4ee5\u6c42\u6ce2\u5f62\u201c\u5b89\u9759\u201d\u3002\u566a\u58f0\u4f4e\u548c\u5b89\u5168\u9694\u79bb\u662f\u5fc5\u987b\u540c\u65f6\u5b9e\u73b0\u7684\u8981\u6c42\uff0c\u4e0d\u80fd\u76f8\u4e92\u66ff\u4ee3\u3002<\/p>\n<h3 id=\"276\">27.6 \u8f93\u5165\u6ee4\u6ce2\u7684\u4ea4\u4e92<\/h3>\n<p>\u8f93\u5165\u6ee4\u6ce2LC\u82e5\u963b\u5c3c\u4e0d\u8db3\uff0c\u53ef\u80fd\u4e0e\u53d7\u63a7\u7535\u6e90\u8f93\u5165\u7279\u6027\u76f8\u4e92\u4f5c\u7528\uff0c\u4ea7\u751f\u4f4e\u9891\u632f\u8361\u3002\u4ec5\u589e\u52a0\u5171\u6a21\u7535\u611f\u6216\u5dee\u6a21\u7535\u611f\u4e0d\u4e00\u5b9a\u6539\u5584\u6240\u6709\u95ee\u9898\uff0c\u5e94\u533a\u5206\u566a\u58f0\u6a21\u5f0f\u548c\u63a7\u5236\u8026\u5408\u3002<\/p>\n<p>EMI\u6700\u7ec8\u9700\u8981\u5728\u89c4\u5b9a\u73af\u5883\u6d4b\u8bd5\u3002\u793a\u6ce2\u5668\u8f93\u51fa\u7eb9\u6ce2\u5c0f\uff0c\u4e0d\u4ee3\u8868\u4f20\u5bfc\u53d1\u5c04\u5408\u683c\uff1b\u4e3b\u5f00\u5173\u5c16\u5cf0\u4f4e\uff0c\u4e5f\u4e0d\u4ee3\u8868\u5171\u6a21\u7535\u6d41\u4f4e\u3002\u628a\u566a\u58f0\u9891\u6bb5\u3001\u8def\u5f84\u548c\u6ee4\u6ce2\u5143\u4ef6\u4e00\u4e00\u5bf9\u5e94\uff0c\u4f18\u5316\u624d\u6709\u660e\u786e\u65b9\u5411\u3002<\/p>\n<h2 id=\"_18\">\u4e8c\u5341\u516b\u3001\u4ece\u7b2c\u4e00\u53ea\u6837\u673a\u5230\u7a33\u5b9a\u8fd0\u884c\uff1a\u6309\u987a\u5e8f\u8c03\u8bd5<\/h2>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-13-test-flow.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" style=\"display:block;max-width:100%;height:auto;margin:26px auto\" loading=\"lazy\" alt=\"\u6b63\u6fc0\u6837\u673a\u9759\u6001\u68c0\u67e5\u3001\u53d7\u63a7\u542f\u52a8\u3001\u590d\u4f4d\u9a8c\u8bc1\u4e0e\u70ed\u6d4b\u8bd5\u6d41\u7a0b\" data-original=\"https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/10\/forward-13-test-flow.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<h3 id=\"281\">28.1 \u9759\u6001\u68c0\u67e5\u4e0d\u7701\u7565<\/h3>\n<p>\u6838\u5bf9\u4e3b\u7ed5\u7ec4\u4e32\u8054\u52a9\u78c1\u3001\u6b21\u7ea7\u70b9\u7aef\u3001\u590d\u4f4d\u7ed5\u7ec4\u4e0e\u4e8c\u6781\u7ba1\u65b9\u5411\u3001\u53cc\u7ba1\u4e24\u53ea\u56de\u9988\u4e8c\u6781\u7ba1\u65b9\u5411\u3001Lo\u89c4\u683c\u548c\u6240\u6709\u7535\u5bb9\u6781\u6027\u3002MOSFET\u5c01\u88c5\u811a\u4f4d\u3001\u9a71\u52a8\u5668\u7535\u6e90\u548c\u5149\u8026\u65b9\u5411\u4e5f\u8981\u9010\u4e2a\u786e\u8ba4\u3002<\/p>\n<p>\u6d4bDCR\u3001\u531d\u6bd4\u3001Lm\u3001\u6f0f\u611f\u548c\u8f93\u51fa\u7535\u611f\u503c\uff0c\u8bb0\u5f55\u9891\u7387\u3001\u5e45\u503c\u53ca\u5939\u5177\u3002\u8702\u9e23\u4e0d\u80fd\u6392\u9664\u77ed\u8def\u531d\uff0c\u4e5f\u4e0d\u8bc1\u660e\u6bcf\u80a1\u7ebf\u710a\u597d\u3002\u7535\u611f\u6d4b\u91cf\u524d\u786e\u8ba4\u78c1\u82af\u88c5\u914d\u72b6\u6001\uff0c\u5e76\u5728\u5141\u8bb8\u6761\u4ef6\u4e0b\u9a8c\u8bc1\u76f4\u6d41\u504f\u7f6e\u80fd\u529b\u3002<\/p>\n<h3 id=\"282\">28.2 \u5148\u770b\u9a71\u52a8\u548c\u63a7\u5236<\/h3>\n<p>\u5728\u4e0e\u63a7\u5236\u5668\u5339\u914d\u7684\u9694\u79bb\u4f4e\u538bVCC\u6761\u4ef6\u4e0b\uff0c\u68c0\u67e5\u9891\u7387\u3001DMAX\u3001\u8f6f\u542f\u52a8\u548c\u4e24\u4e2a\u6805\u6781\u7684\u76f8\u4f4d\u3002\u53cc\u7ba1\u5e94\u540c\u65f6\u5f00\u5173\uff0c\u4e0d\u662f\u4e92\u8865\u3002\u82e5\u9a71\u52a8\u53d8\u538b\u5668\u8109\u51b2\u540e\u534a\u6bb5\u660e\u663e\u4e0b\u5782\uff0c\u5e94\u5148\u4fee\u9a71\u52a8\uff0c\u800c\u4e0d\u662f\u6295\u5165\u4e3b\u6bcd\u7ebf\u8bd5\u9a8c\u3002<\/p>\n<p>\u5916\u4f9bVCC\u53ef\u80fd\u6539\u53d8\u5185\u90e8\u542f\u52a8\u4e0e\u4fdd\u62a4\uff0c\u907f\u514d\u56de\u704c\u5e76\u8bb0\u5f55\u5dee\u5f02\u3002\u5e02\u7535\u56de\u8def\u7531\u5177\u5907\u6761\u4ef6\u7684\u4eba\u4f7f\u7528\u5408\u9002\u8bbe\u5907\u6d4b\u91cf\uff0c\u7981\u6b62\u901a\u8fc7\u62c6\u793a\u6ce2\u5668\u4fdd\u62a4\u5730\u83b7\u5f97\u6240\u8c13\u6d6e\u5730\u3002\u9694\u79bb\u53d8\u538b\u5668\u4e0d\u80fd\u53d6\u6d88\u6bcd\u7ebf\u9ad8\u538b\u4e0e\u50a8\u80fd\u98ce\u9669\u3002<\/p>\n<h3 id=\"283\">28.3 \u53d7\u63a7\u4e0a\u7535\u5148\u786e\u8ba4\u590d\u4f4d<\/h3>\n<p>\u521d\u59cb\u8f93\u5165\u4e0e\u5141\u8bb8\u8d1f\u8f7d\u6309\u6d4b\u8bd5\u65b9\u6848\u9010\u6b65\u63d0\u5347\uff0c\u540c\u65f6\u770b\u521d\u7ea7\u4f0f\u79d2\u3001\u6f0f\u6781\u5e73\u53f0\u3001\u590d\u4f4d\u7535\u6d41\u548c\u7535\u6d41\u659c\u7387\u3002\u82e5\u7535\u6d41\u9010\u5468\u671f\u722c\u5347\u3001\u590d\u4f4d\u672a\u7ed3\u675f\u5c31\u518d\u5f00\u901a\uff0c\u6216\u8109\u51b2\u540e\u6bb5\u7a81\u7136\u53d8\u9661\uff0c\u5e94\u7acb\u5373\u56de\u5230\u8fde\u63a5\u4e0e\u63a7\u5236\u68c0\u67e5\u3002<\/p>\n<p>\u6b63\u6fc0\u7a7a\u8f7d\u53ef\u80fd\u8fdb\u5165DCM\u6216\u8df3\u8109\u51b2\uff0c\u4e0d\u80fd\u62ff\u6ee1\u8f7d\u516c\u5f0f\u8981\u6c42\u6bcf\u4e2a\u7a7a\u8f7d\u5468\u671f\u5b8c\u5168\u76f8\u540c\u3002\u6d4b\u8bd5\u91cd\u70b9\u662f\u6bcf\u4e2a\u8109\u51b2\u4f0f\u79d2\u53d7\u63a7\u3001\u590d\u4f4d\u6b63\u786e\u3001\u8f93\u51fa\u4e0d\u8fc7\u538b\u548cVCC\u7a33\u5b9a\uff0c\u800c\u4e0d\u662f\u5f3a\u5236\u9891\u7387\u8868\u9762\u597d\u770b\u3002<\/p>\n<h3 id=\"284\">28.4 \u5bf9\u7167\u7b97\u4f8b\u6ce2\u5f62<\/h3>\n<p>\u4f4e\u538b36 V\u6ee1\u8f7d\u6b63\u5e38\u5bfc\u901a\u7ea64.323 \u03bcs\uff0c\u7b49\u531d\u590d\u4f4d\u8fd1\u4f3c\u76f8\u540c\uff0c\u8f93\u51fa\u7535\u611f\u56f4\u7ed5\u4e94\u5b89\u6446\u52a8\u7ea60.471 A\u3002\u4e94\u4f0f\u53cc\u7ba1230 V\u6bcd\u7ebf\u6b63\u5e38\u5bfc\u901a\u7ea63.159 \u03bcs\uff0c\u8f93\u51fa\u7535\u611f\u56f4\u7ed5\u4e24\u5b89\u6446\u52a8\u7ea60.548 A\u3002<\/p>\n<p>\u771f\u5b9e\u538b\u964d\u4e0e\u635f\u8017\u4f1a\u4f7f\u6570\u5b57\u53d8\u5316\uff0c\u4f46\u9636\u6bb5\u5173\u7cfb\u5e94\u4e00\u81f4\u3002\u82e5\u5b9e\u9645\u521d\u7ea7\u6ce2\u5f62\u53ea\u6709\u4ece\u96f6\u4e0a\u5347\u7684\u5927\u4e09\u89d2\uff0c\u6216\u6b21\u7ea7\u5728\u4e3b\u5f00\u5173\u5173\u65ad\u540e\u624d\u5411\u8f93\u51fa\u9001\u80fd\uff0c\u5e94\u68c0\u67e5\u662f\u5426\u63a5\u6210\u4e86\u53cd\u6fc0\u6781\u6027\uff0c\u4e0d\u80fd\u4ec5\u8c03\u5360\u7a7a\u6bd4\u63a9\u76d6\u3002<\/p>\n<h3 id=\"285\">28.5 \u626b\u63cf\u8f93\u5165\u548c\u8d1f\u8f7d<\/h3>\n<p>\u5206\u522b\u8bb0\u5f55\u6700\u4f4e\u3001\u6807\u79f0\u3001\u6700\u9ad8\u8f93\u5165\u4e0b\u7684\u7a7a\u8f7d\u3001\u8f7b\u8f7d\u3001\u534a\u8f7d\u3001\u6ee1\u8f7d\u4e0e\u4fdd\u62a4\u8fb9\u754c\u3002\u4f4e\u8f93\u5165\u91cd\u70b9\u770bDMAX\u548c\u590d\u4f4d\u4f59\u91cf\uff0c\u9ad8\u8f93\u5165\u770b\u7eb9\u6ce2\u3001\u5668\u4ef6\u53cd\u538b\u3001\u7eed\u6d41\u635f\u8017\u548c\u6700\u5c0f\u5bfc\u901a\u3002\u4e0d\u540c\u9879\u7684\u6700\u574f\u70b9\u9700\u5206\u522b\u5217\u51fa\u3002<\/p>\n<p>\u4e0d\u8981\u4e00\u6b21\u6539\u53d8\u531d\u6bd4\u3001\u6c14\u9699\u3001\u8865\u507f\u548c\u5438\u6536\u3002\u6bcf\u8f6e\u53ea\u6539\u80fd\u89e3\u91ca\u7684\u5c11\u6570\u53c2\u6570\uff0c\u4fdd\u5b58\u7248\u672c\u3001\u6ce2\u5f62\u548c\u6e29\u5ea6\u3002\u8fd9\u6837\u6539\u5584\u624d\u53ef\u590d\u73b0\uff0c\u4e5f\u80fd\u9632\u6b62\u4e0b\u4e00\u4e2a\u6279\u6b21\u56e0\u516c\u5dee\u628a\u95ee\u9898\u5e26\u56de\u6765\u3002<\/p>\n<h3 id=\"286\">28.6 \u70ed\u7a33\u6001\u4e0e\u52a8\u6001<\/h3>\n<p>\u6309\u771f\u5b9e\u5916\u58f3\u548c\u6700\u9ad8\u73af\u5883\u8fd0\u884c\u5230\u63a5\u8fd1\u7a33\u5b9a\uff0c\u6d4b\u4e3b\u5f00\u5173\u3001DF\u3001DW\u3001Lo\u3001\u4e3b\u78c1\u82af\u3001\u590d\u4f4d\u5668\u4ef6\u4e0e\u542f\u52a8\u7535\u963b\u3002\u8d1f\u8f7d\u9636\u8dc3\u89c2\u5bdf\u6062\u590d\u4e0e\u632f\u94c3\uff0c\u5378\u8f7d\u770bLo\u80fd\u91cf\u5bfc\u81f4\u7684\u8fc7\u51b2\uff1b\u77ed\u8def\u4e0e\u6062\u590d\u9700\u540c\u65f6\u770b\u5355\u8109\u51b2\u6700\u5927\u503c\u548c\u5e73\u5747\u70ed\u3002<\/p>\n<p>\u8bb0\u5f55\u5e94\u542b\u6761\u4ef6\u3001\u7ed3\u679c\u3001\u9650\u503c\u548c\u7ed3\u8bba\u3002\u53ea\u6709\u4e00\u53e5\u201c\u6ee1\u8f7d\u6b63\u5e38\u201d\u4e0d\u5982\u5199\u6e05\u8f93\u5165\u3001\u8d1f\u8f7d\u3001\u73af\u5883\u3001\u8fd0\u884c\u65f6\u95f4\u3001\u6700\u9ad8\u7535\u538b\u3001\u6e29\u5ea6\u548c\u8f93\u51fa\u8bef\u5dee\u3002\u4eea\u5668\u578b\u53f7\u3001\u63a2\u5934\u65b9\u5f0f\u548c\u5e26\u5bbd\u4e5f\u5e94\u4fdd\u5b58\u3002<\/p>\n<h2 id=\"_19\">\u4e8c\u5341\u4e5d\u3001\u5e38\u89c1\u6545\u969c\uff1a\u4ece\u73b0\u8c61\u56de\u5230\u7535\u8def\u8def\u5f84<\/h2>\n<div style=\"overflow-x:auto;margin:20px 0\">\n<table style=\"width:100%;border-collapse:collapse;font-size:0.94em\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d4dce6;padding:10px;text-align:left;background:#eef4f9\">\u73b0\u8c61<\/th>\n<th style=\"border:1px solid #d4dce6;padding:10px;text-align:left;background:#eef4f9\">\u4f18\u5148\u68c0\u67e5<\/th>\n<th style=\"border:1px solid #d4dce6;padding:10px;text-align:left;background:#eef4f9\">\u4e0d\u5b9c\u76f4\u63a5\u91c7\u53d6\u7684\u529e\u6cd5<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4e0a\u7535\u7535\u6d41\u5f02\u5e38\u5927<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6781\u6027\u3001\u77ed\u8def\u3001\u53cc\u7ba1\u9a71\u52a8\u3001\u590d\u4f4d<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u7ee7\u7eed\u52a0\u8f93\u5165<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u7535\u6d41\u540e\u6bb5\u53d8\u9661<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u8fc7\u4f0f\u79d2\u3001\u78c1\u82af\/Lo\u9971\u548c\u3001\u6d4b\u91cf<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4e00\u5473\u52a0\u5927\u9650\u6d41<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4f4e\u8f93\u5165\u6389\u538b<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">DMAX\u3001\u70ed\u6001\u538b\u964d\u3001\u590d\u4f4d\u4f59\u91cf<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u63d0\u9ad8\u7a7a\u8f7d\u8f93\u51fa\u63a9\u76d6<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u9ad8\u8f93\u5165DW\u5f88\u70ed<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u7eed\u6d41\u5360\u6bd4\u3001VF\u3001\u6062\u590d\u3001\u6563\u70ed<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u53ea\u6362DF<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6f0f\u6781\u5c16\u5cf0\u9ad8<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u56de\u8def\u3001\u6f0f\u611f\u3001\u94b3\u4f4d\u3001\u63a2\u5934<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4efb\u610f\u5806\u5927\u7535\u5bb9<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u8f93\u51fa\u7535\u611f\u5f88\u70ed<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u76f4\u6d41\u94dc\u635f\u3001\u6c14\u9699\u3001\u504f\u7f6e\u964d\u611f<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u53ea\u6d4b\u4e3b\u53d8\u538b\u5668\u6e29\u5ea6<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u542f\u52a8\u4e00\u4e0b\u4e00\u76f4\u91cd\u590d<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">VCC\u3001\u8f85\u52a9\u7ed5\u7ec4\u3001\u4fdd\u62a4<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u53ea\u589e\u8f93\u51fa\u7535\u5bb9<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u76f8\u90bb\u5468\u671f\u4ea4\u66ff<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u91c7\u6837\u3001\u659c\u5761\u3001\u9a71\u52a8\u3001\u590d\u4f4d<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u53ea\u6539\u5916\u73af\u79ef\u5206\u7535\u5bb9<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u8f7b\u8f7d\u8fc7\u538b\u6216\u5578\u53eb<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6700\u5c0f\u8109\u5bbd\u3001\u6a21\u5f0f\u3001\u53cd\u9988\u504f\u7f6e<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u5ba3\u79f0\u4e00\u5b9a\u9971\u548c<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u53cc\u7ba1\u4e00\u53ea\u7279\u522b\u70ed<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">VGS\u3001\u5ef6\u65f6\u3001\u5c40\u90e8\u5c16\u5cf0\u3001\u5668\u4ef6<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u9ed8\u8ba4\u4e24\u53ea\u7535\u6d41\u5fc5\u76f8\u540c\u4e14\u65e0\u95ee\u9898<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3 id=\"291\">29.1 \u9971\u548c\u4e0e\u6f0f\u611f\u5c16\u5cf0\u600e\u6837\u5206\u8fa8<\/h3>\n<p>\u6f0f\u611f\u5c16\u5cf0\u5e38\u51fa\u73b0\u5728\u5f00\u5173\u8fc7\u6e21\u9644\u8fd1\uff0c\u800c\u9971\u548c\u53ef\u80fd\u4f7f\u5bfc\u901a\u540e\u6bb5\u7535\u6d41\u659c\u7387\u660e\u663e\u52a0\u901f\u3002\u540c\u6b65\u89c2\u5bdf\u7ed5\u7ec4\u7535\u538b\uff0c\u786e\u8ba4\u659c\u7387\u53d8\u5316\u4e0d\u662f\u8f93\u5165\u6216\u63a7\u5236\u6539\u53d8\u3002\u78c1\u4ef6\u6d4b\u8bd5\u9891\u7387\u548c\u7535\u6d41\u5e45\u503c\u4e0d\u5339\u914d\uff0c\u4e5f\u53ef\u80fd\u5bfc\u81f4\u8bef\u5224\u3002<\/p>\n<p>\u9971\u548c\u7591\u70b9\u5e94\u5148\u51cf\u5c0f\u80fd\u91cf\u5e76\u68c0\u67e5\u531d\u6570\u3001\u6750\u6599\u3001AL\u548c\u4f0f\u79d2\uff0c\u4e0d\u80fd\u9760\u6269\u5927\u6ee4\u6ce2\u8ba9\u63a7\u5236\u5668\u770b\u4e0d\u89c1\u3002\u6f0f\u611f\u5c16\u5cf0\u5219\u4ece\u8026\u5408\u3001\u6362\u6d41\u56de\u8def\u3001\u4e8c\u6781\u7ba1\u52a8\u6001\u548c\u5438\u6536\u5904\u7406\uff0c\u4e24\u7c7b\u95ee\u9898\u9700\u8981\u4e0d\u540c\u6539\u6cd5\u3002<\/p>\n<h3 id=\"292\">29.2 \u6389\u538b\u4e0d\u4e00\u5b9a\u662f\u6b21\u7ea7\u531d\u6570\u5c11<\/h3>\n<p>\u8f93\u5165\u8c37\u503c\u3001\u9650\u6d41\u3001\u63a7\u5236\u5668DMAX\u3001\u6574\u6d41\u538b\u964d\u3001Lo\u70ed\u963b\u3001\u8fde\u63a5\u5668\u548c\u7ebf\u7f06\u90fd\u53ef\u80fd\u9020\u6210\u6389\u538b\u3002\u5148\u770b\u53cd\u9988\u662f\u5426\u5df2\u7ecf\u5230\u6781\u9650\u3001\u5b9e\u9645D\u591a\u5c11\u548c\u6bcd\u7ebf\u8c37\u503c\uff0c\u518d\u51b3\u5b9a\u531d\u6570\u3002\u968f\u4fbf\u52a0\u6b21\u7ea7\u531d\u6570\u4f1a\u6539\u53d8\u8109\u51b2\u5e45\u503c\u3001\u5668\u4ef6\u53cd\u538b\u3001D\u548c\u7eb9\u6ce2\u3002<\/p>\n<h3 id=\"293-emi\">29.3 \u4f4e\u6f0f\u611f\u4e5f\u53ef\u80fd\u8ba9EMI\u53d8\u5dee<\/h3>\n<p>\u66f4\u7d27\u7684\u4e09\u660e\u6cbb\u589e\u52a0\u521d\u6b21\u7ea7\u76f8\u90bb\u9762\u79ef\uff0c\u964d\u4f4e\u6f0f\u611f\u5374\u53ef\u80fd\u63d0\u9ad8\u5bc4\u751f\u7535\u5bb9\u3002\u6f0f\u6781dv\/dt\u901a\u8fc7\u5b83\u5f62\u6210\u5171\u6a21\u7535\u6d41\uff0c\u8f93\u51fa\u7ebf\u7f06\u53ef\u80fd\u53d8\u6210\u4e3b\u8981\u566a\u58f0\u8def\u5f84\u3002\u5e94\u540c\u65f6\u5bf9\u6bd4\u7535\u5bb9\u3001\u5c16\u5cf0\u548cEMI\uff0c\u800c\u4e0d\u662f\u53ea\u4fdd\u7559LCR\u8868\u4e0a\u6700\u5c0f\u6570\u5b57\u3002<\/p>\n<h3 id=\"294\">29.4 \u6e29\u5ea6\u95ee\u9898\u6309\u635f\u8017\u4f4d\u7f6e\u5b9a\u4f4d<\/h3>\n<p>DW\u70ed\u800cDF\u4e0d\u70ed\uff0c\u5148\u770b\u9ad8\u8f93\u5165\u7eed\u6d41\u65f6\u95f4\uff1b\u4e3b\u53d8\u538b\u5668\u70ed\uff0c\u770b\u78c1\u82af\u6750\u6599\u3001\u0394B\u3001\u94dc\u5c42\u4e0e\u8026\u5408\uff1bLo\u70ed\uff0c\u770bDCR\u3001\u76f4\u6d41\u504f\u7f6e\u4e0e\u6c14\u9699\u6f0f\u78c1\uff1b\u4e24\u7ba1\u6e29\u5ea6\u4e0d\u5747\uff0c\u5148\u6d4b\u5b9e\u9645VGS\u548c\u5c40\u90e8\u8fc7\u51b2\u3002<\/p>\n<p>\u70ed\u50cf\u56fe\u662f\u7ebf\u7d22\uff0c\u4e0d\u662f\u6240\u6709\u5185\u90e8\u635f\u8017\u7684\u76f4\u63a5\u8bfb\u6570\u3002\u80f6\u3001\u5c4f\u853d\u548c\u5c01\u88c5\u8868\u9762\u4f1a\u5f71\u54cd\u6d4b\u6e29\uff0c\u5fc5\u8981\u65f6\u7ed3\u5408\u7535\u963b\u6cd5\u548c\u529f\u7387\u9884\u7b97\u3002\u82e5\u4fee\u6539\u540e\u603b\u6548\u7387\u4e0d\u53d8\u4f46\u70ed\u8f6c\u79fb\u5230\u53e6\u4e00\u4e2a\u5668\u4ef6\uff0c\u5e94\u5982\u5b9e\u8bb0\u5f55\uff0c\u800c\u4e0d\u662f\u53ea\u770b\u539f\u70ed\u70b9\u53d8\u51c9\u3002<\/p>\n<h2 id=\"_20\">\u4e09\u5341\u3001\u591a\u8def\u8f93\u51fa\u3001\u540c\u6b65\u6574\u6d41\u4e0e\u62d3\u6251\u9009\u62e9\u7684\u8fb9\u754c<\/h2>\n<h3 id=\"301\">30.1 \u591a\u8def\u8f93\u51fa\u4e0d\u53ea\u662f\u591a\u7ed5\u51e0\u531d<\/h3>\n<p>\u6bcf\u8def\u6b21\u7ea7\u901a\u5e38\u9700\u8981\u76f8\u5e94\u6574\u6d41\u4e0e\u6ee4\u6ce2\uff0c\u4e3b\u53cd\u9988\u53ea\u80fd\u76f4\u63a5\u63a7\u5236\u89c4\u5b9a\u91c7\u6837\u8f93\u51fa\u3002\u5176\u4ed6\u8def\u53d7\u8d1f\u8f7d\u3001\u94dc\u963b\u3001\u6f0f\u611f\u548c\u6574\u6d41\u538b\u964d\u5f71\u54cd\uff0c\u4ea4\u53c9\u8c03\u6574\u7387\u53ef\u80fd\u4e0d\u6ee1\u8db3\u8981\u6c42\u3002\u52a0\u540e\u7ea7\u7a33\u538b\u6216\u591a\u8f93\u51fa\u63a7\u5236\u4f1a\u6539\u53d8\u6210\u672c\u4e0e\u6548\u7387\u3002<\/p>\n<p>\u591a\u4e2a\u8f93\u51fa\u7535\u611f\u91c7\u7528\u8026\u5408\u7ed3\u6784\u6709\u65f6\u80fd\u6539\u5584\u67d0\u4e9b\u4ea4\u53c9\u7279\u6027\uff0c\u4f46\u4e5f\u5f15\u5165\u8026\u5408\u3001\u8d1f\u8f7d\u7ec4\u5408\u548c\u6f0f\u611f\u95ee\u9898\u3002\u4e0d\u80fd\u628a\u6240\u6709\u8f93\u51fa\u6700\u5927\u7535\u6d41\u540c\u65f6\u7b80\u5355\u76f8\u52a0\uff0c\u8fd8\u8981\u660e\u786e\u6700\u5927\u540c\u65f6\u529f\u7387\u4e0e\u504f\u8f7d\u72b6\u6001\u3002<\/p>\n<h3 id=\"302\">30.2 \u52a0\u5927\u529f\u7387\u8981\u91cd\u7b97\u54ea\u4e9b\u9879<\/h3>\n<p>\u8f93\u51fa\u7535\u6d41\u589e\u52a0\u65f6\uff0c\u6b21\u7ea7\u548cLo\u94dc\u635f\u6309\u7535\u6d41\u5e73\u65b9\u4e0a\u5347\uff0c\u521d\u7ea7RMS\u548c\u5cf0\u503c\u589e\u52a0\uff0c\u6574\u6d41\u6362\u6d41\u4e0e\u5e03\u5c40\u4e5f\u66f4\u82db\u523b\u3002\u6b63\u6fc0\u4e3b\u78c1\u901a\u5728\u6b63\u5e38\u7535\u538b\u73af\u4e0b\u4e3b\u8981\u7531\u4f0f\u79d2\u51b3\u5b9a\uff0c\u4e0d\u4ee3\u8868\u529f\u7387\u63d0\u9ad8\u4e0d\u5f71\u54cd\u78c1\u4ef6\uff1a\u94dc\u7ebf\u3001\u7a97\u53e3\u3001\u6f0f\u611f\u548c\u70ed\u4ecd\u4f1a\u6210\u4e3a\u9650\u5236\u3002<\/p>\n<p>\u589e\u52a0\u7535\u6d41\u4e0d\u80fd\u53ea\u6362\u66f4\u5927MOSFET\u3002\u8981\u540c\u65f6\u91cd\u7b97\u91c7\u6837\u3001Lo\u9971\u548c\u3001\u7ebf\u6750\u3001\u7aef\u5b50\u3001\u6574\u6d41\u3001\u8f93\u51fa\u7535\u5bb9\u3001\u52a8\u6001\u548c\u4fdd\u62a4\u3002\u529f\u7387\u5bc6\u5ea6\u63d0\u9ad8\u540e\uff0c\u9009\u62e9\u6709\u6e90\u94b3\u4f4d\u3001\u534a\u6865\u6216\u5168\u6865\u53ef\u80fd\u6bd4\u7ee7\u7eed\u5806\u94dc\u66f4\u5408\u7406\u3002<\/p>\n<h3 id=\"303\">30.3 \u6539\u9891\u7387\u7684\u6536\u76ca\u548c\u4ee3\u4ef7<\/h3>\n<p>\u63d0\u9ad8\u9891\u7387\u5728\u76f8\u540c\u8109\u51b2\u5e73\u5747\u5173\u7cfb\u4e0b\u51cf\u5c0f\u5355\u5468\u671f\u4f0f\u79d2\u548cLo\u7eb9\u6ce2\uff0c\u4f46\u5f00\u5173\u3001\u9a71\u52a8\u548c\u78c1\u82af\u635f\u8017\u53ef\u80fd\u589e\u52a0\uff1b\u964d\u4f4e\u9891\u7387\u5219\u9700\u8981\u66f4\u591a\u531d\u6570\u6216\u66f4\u5927\u78c1\u82af\u53ca\u7535\u611f\u3002\u63a7\u5236\u5668\u9891\u7387\u5bb9\u5dee\u3001\u6700\u4f4e\u9891\u7387\u548c\u7a81\u53d1\u5355\u8109\u51b2\u5fc5\u987b\u5305\u542b\u5728\u6700\u574f\u4f0f\u79d2\u91cc\u3002<\/p>\n<p>\u9891\u7387\u4e0d\u80fd\u72ec\u7acb\u4e8e\u78c1\u82af\u6750\u6599\u548c\u5668\u4ef6\u8c03\u6574\u3002\u628a\u73b0\u6210\u4e94\u5341\u5343\u8d6b\u8bbe\u8ba1\u7b80\u5355\u6539\u5230\u4e8c\u767e\u5343\u8d6b\uff0c\u518d\u8ba4\u4e3a\u8f93\u51fa\u53ea\u7531D\u51b3\u5b9a\u6240\u4ee5\u5176\u4ed6\u4e0d\u53d8\uff0c\u4f1a\u6f0f\u6389\u4e3b\u8981\u635f\u8017\u4e0e\u65f6\u5e8f\u95ee\u9898\u3002<\/p>\n<h3 id=\"304\">30.4 \u54ea\u4e9b\u60c5\u51b5\u4e0b\u9009\u62e9\u53cd\u6fc0<\/h3>\n<p>\u5c0f\u529f\u7387\u3001\u5668\u4ef6\u6570\u91cf\u548c\u6210\u672c\u4f18\u5148\u3001\u8f93\u51fa\u7535\u6d41\u4e0d\u9ad8\u65f6\uff0c\u53cd\u6fc0\u901a\u5e38\u66f4\u76f4\u63a5\uff1b\u4e94\u4f0f\u4e24\u5b89\u5c31\u5e94\u8ba4\u771f\u6bd4\u8f83\u3002\u53cd\u6fc0\u7684\u78c1\u4ef6\u50a8\u80fd\u3001\u6b21\u7ea7\u8109\u51b2\u548c\u94b3\u4f4d\u4e5f\u6709\u4ee3\u4ef7\uff0c\u4e0d\u5e94\u4e3a\u4e86\u5c11\u4e00\u4e2aLo\u5c31\u5ffd\u7565\u6548\u7387\u4e0e\u70ed\u3002<\/p>\n<p>\u6b63\u6fc0\u9002\u5408\u9700\u8981\u8f83\u5e73\u6ed1\u8f93\u51fa\u7535\u611f\u7535\u6d41\u3001\u529f\u7387\u4e0e\u7535\u6d41\u8f83\u5927\u3001\u53ef\u4ee5\u63a5\u53d7\u590d\u4f4d\u548c\u989d\u5916\u5668\u4ef6\u7684\u573a\u5408\u3002\u6700\u7ec8\u9009\u62e9\u5e94\u57fa\u4e8e\u5b9e\u9645\u8f93\u5165\u8303\u56f4\u3001\u8f93\u51fa\u3001\u9694\u79bb\u3001EMI\u3001\u6210\u672c\u548c\u5de5\u827a\uff0c\u800c\u4e0d\u662f\u628a\u67d0\u79cd\u62d3\u6251\u5f53\u4f5c\u7edf\u4e00\u5347\u7ea7\u65b9\u5411\u3002<\/p>\n<h3 id=\"305\">30.5 \u53cc\u7ba1\u4e0d\u662f\u534a\u6865\u7684\u8fc7\u6e21\u66ff\u4ee3\u8bcd<\/h3>\n<p>\u53cc\u7ba1\u6b63\u6fc0\u4e24\u7ba1\u540c\u65f6\u5f00\uff0c\u521d\u7ea7\u4f20\u80fd\u7535\u538b\u7ea6Vin\uff1b\u534a\u6865\u901a\u5e38\u4e0a\u4e0b\u7ba1\u4ea4\u66ff\uff0c\u521d\u7ea7\u7535\u538b\u4e0e\u534a\u6bcd\u7ebf\u53ca\u7535\u5bb9\u5e73\u8861\u6709\u5173\uff0c\u8f93\u51fa\u6574\u6d41\u4e0e\u78c1\u82af\u5229\u7528\u4e5f\u4e0d\u540c\u3002\u63a8\u633d\u548c\u5168\u6865\u53c8\u6709\u5404\u81ea\u65f6\u5e8f\uff0c\u4e0d\u80fd\u53ea\u6309\u5f00\u5173\u6570\u91cf\u5957\u516c\u5f0f\u3002<\/p>\n<p>\u7406\u89e3\u4e86\u5bfc\u901a\u529f\u7387\u8def\u5f84\u3001\u5173\u65ad\u50a8\u80fd\u8def\u5f84\u3001\u4e3b\u78c1\u901a\u590d\u4f4d\u4e0e\u5668\u4ef6\u7535\u538b\uff0c\u5c31\u80fd\u4ece\u56fe\u5224\u65ad\u771f\u6b63\u62d3\u6251\u3002\u8fd9\u4e2a\u80fd\u529b\u6bd4\u8bb0\u4f4f\u67d0\u5f20\u201c\u591a\u5c11\u74e6\u7528\u4ec0\u4e48\u201d\u7684\u56fa\u5b9a\u8868\u66f4\u53ef\u9760\u3002<\/p>\n<h2 id=\"_21\">\u4e09\u5341\u4e00\u3001\u628a\u8bbe\u8ba1\u4ea4\u4ed8\u4e3a\u8ba1\u7b97\u8868\u3001\u7ed5\u7ec4\u8868\u548c\u6d4b\u8bd5\u89c4\u8303<\/h2>\n<h3 id=\"311\">31.1 \u4e94\u4f0f\u53cc\u7ba1\u7b97\u4f8b\u6c47\u603b<\/h3>\n<div style=\"overflow-x:auto;margin:20px 0\">\n<table style=\"width:100%;border-collapse:collapse;font-size:0.94em\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d4dce6;padding:10px;text-align:left;background:#eef4f9\">\u53c2\u6570<\/th>\n<th style=\"text-align: right;\">\u7ed3\u679c<\/th>\n<th style=\"border:1px solid #d4dce6;padding:10px;text-align:left;background:#eef4f9\">\u7528\u9014\/\u9650\u5236<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4ea4\u6d41\u8f93\u5165<\/td>\n<td style=\"text-align: right;\">198\uff5e242 V AC\u300150 Hz<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">220 V\u00b110%\u4f8b\u503c<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u8bbe\u8ba1\u6bcd\u7ebf<\/td>\n<td style=\"text-align: right;\">230\uff5e\u7ea6342 V DC<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u8c37\u503c\u4e0e\u77ac\u6001\u5f85\u9a8c\u8bc1<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u8f93\u51fa<\/td>\n<td style=\"text-align: right;\">5 V\/2 A\uff0c10 W<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4e0e\u53cd\u6fc0\u7bc7\u5bf9\u7167<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">Np\/Ns<\/td>\n<td style=\"text-align: right;\">160\/12<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">k=0.075<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">fs\u3001Lm<\/td>\n<td style=\"text-align: right;\">100 kHz\u300120 mH<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u660e\u786e\u6d4b\u8bd5\u548c\u516c\u5dee<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4e3b\u78c1\u4ef6AL<\/td>\n<td style=\"text-align: right;\">781.25 nH\/\u531d\u00b2<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6838\u5bf9\u6750\u6599\u548c\u88c5\u914d<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6b63\u5e38\u0394B\u5e73\u5747\/\u5c40\u90e8<\/td>\n<td style=\"text-align: right;\">0.1514\/0.1682 T<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4e0d\u542b\u5f02\u5e38\u6700\u5927\u8109\u5bbd<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6700\u4f4e\u6bcd\u7ebfD\/ton<\/td>\n<td style=\"text-align: right;\">0.31594\/3.159 \u03bcs<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u590d\u4f4d\u7ea6\u540c\u957f<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u590d\u4f4d\u540e\u65f6\u95f4\u4f59\u91cf<\/td>\n<td style=\"text-align: right;\">3.681 \u03bcs<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4f4e\u6bcd\u7ebf\u6b63\u5e38\u70b9<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6700\u5927\u6b63\u5e38Ip,pk<\/td>\n<td style=\"text-align: right;\">\u7ea60.2100 A<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u9ad8\u6bcd\u7ebf\u6b63\u5e38\u70b9<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6bcf\u7ba1\u6700\u5927RMS<\/td>\n<td style=\"text-align: right;\">\u7ea60.09536 A<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4f4e\u6bcd\u7ebf\u6b63\u5e38\u70b9<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6bcf\u7ba1\u7406\u60f3\u8010\u538b\u5e73\u53f0<\/td>\n<td style=\"text-align: right;\">\u6700\u9ad8\u7ea6342 V<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u53e6\u52a0\u52a8\u6001\u88d5\u91cf<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">Lo<\/td>\n<td style=\"text-align: right;\">68 \u03bcH<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6b63\u5e38CCM<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">Lo\u5cf0\u503c\/RMS<\/td>\n<td style=\"text-align: right;\">\u7ea62.3156\/2.0083 A<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u9ad8\u6bcd\u7ebf\u6b63\u5e38\u70b9<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">Lo\u5019\u9009\u531d\u6570\/AL<\/td>\n<td style=\"text-align: right;\">32T\/66.41 nH\/\u531d\u00b2<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u9700\u5b9e\u9645\u78c1\u82af<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">Lo\u7b49\u6548\u603b\u6c14\u9699\u521d\u4f30<\/td>\n<td style=\"text-align: right;\">\u7ea60.568 mm<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u975e\u76f4\u63a5\u78e8\u5236\u56fe<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u6b21\u7ea7\u6700\u5927\u7406\u60f3\u53cd\u538b<\/td>\n<td style=\"text-align: right;\">\u7ea625.65 V<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u53e6\u52a0\u6062\u590d\u4e0e\u632f\u94c3<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u8f93\u51fa\u7535\u5bb9RMS<\/td>\n<td style=\"text-align: right;\">\u7ea60.1822 A<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4e0d\u542b\u77ac\u6001\u4e0e\u7a81\u53d1<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">470 \u03bcF\u7eaf\u5bb9\u91cf\u7eb9\u6ce2<\/td>\n<td style=\"text-align: right;\">\u7ea61.68 mV<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4e0d\u7b49\u4e8e\u5b9e\u6d4b\u603b\u7eb9\u6ce2<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u4e24\u6574\u6d41\u5668\u5bfc\u901a\u635f\u8017<\/td>\n<td style=\"text-align: right;\">\u7ea60.90 W<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u56fa\u5b9a0.45 V\u5047\u8bbe<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u8f93\u5165\u50a8\u80fd\u5019\u9009<\/td>\n<td style=\"text-align: right;\">22 \u03bcF<\/td>\n<td style=\"border:1px solid #d4dce6;padding:10px;text-align:left\">\u8010\u538b\u3001\u7eb9\u6ce2\u3001\u5bff\u547d\u6838\u5bf9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3 id=\"312\">31.2 \u4e00\u5f20\u53ef\u8ffd\u6eaf\u8ba1\u7b97\u8868<\/h3>\n<p>\u6bcf\u4e2a\u53c2\u6570\u6807\u6765\u6e90\uff1a\u9700\u6c42\u3001\u5668\u4ef6\u624b\u518c\u3001\u78c1\u82af\u624b\u518c\u3001\u516c\u5f0f\u3001\u4eff\u771f\u3001\u5de5\u7a0b\u5047\u8bbe\u6216\u6837\u673a\u6d4b\u91cf\u3002\u53e6\u5217\u6700\u4f4e\/\u5178\u578b\/\u6700\u9ad8\u4e0e\u6e29\u5ea6\u6761\u4ef6\uff0c\u4e0d\u628a\u5178\u578b\u503c\u5f53\u4fdd\u8bc1\u503c\u3002\u9891\u7387\u3001\u9608\u503c\u3001\u6c14\u9699\u4e0e\u7ebf\u6750\u90fd\u6709\u516c\u5dee\uff0c\u6700\u574f\u7ec4\u5408\u8981\u6709\u660e\u786e\u68c0\u67e5\u3002<\/p>\n<p>\u8ba1\u7b97\u8868\u81f3\u5c11\u5173\u8054VinD\u3001\u590d\u4f4d\u65f6\u95f4\u3001\u0394B\u3001Im\u3001\u8f93\u51fa\u7eb9\u6ce2\u3001\u5404\u5668\u4ef6RMS\u3001\u53cd\u538b\u3001\u635f\u8017\u548c\u6e29\u5347\u3002\u531d\u6570\u3001Lo\u6216\u9891\u7387\u6539\u53d8\u540e\uff0c\u4e0d\u5e94\u9760\u4eba\u5de5\u8bb0\u5fc6\u9009\u62e9\u6027\u4fee\u6539\u51e0\u884c\uff0c\u6240\u6709\u4e0b\u6e38\u7ed3\u679c\u5e94\u540c\u6b65\u56de\u7b97\u3002<\/p>\n<h3 id=\"313\">31.3 \u7ed5\u7ec4\u5de5\u827a\u5361<\/h3>\n<p>\u5305\u62ec\u5b8c\u6574\u78c1\u82af\u548c\u9aa8\u67b6\u6599\u53f7\u3001\u6750\u6599\u3001AL\u3001\u89c2\u5bdf\u9762\u3001\u5f15\u811a\u3001\u70b9\u7aef\u3001\u6bcf\u7ec4\u531d\u6570\u3001\u5c42\u6b21\u3001\u6bcf\u5c42\u6392\u7ebf\u3001\u88f8\u5f84\u548c\u6700\u5927\u5916\u5f84\u3001\u5e76\u80a1\u6570\u3001\u80f6\u5e26\u3001\u8fb9\u8ddd\u3001\u5957\u7ba1\u3001\u5f15\u7ebf\u548c\u88c5\u914d\u65b9\u5f0f\u3002\u4e3b\u53d8\u538b\u5668\u4e0eLo\u5206\u522b\u5199\uff0c\u907f\u514d\u540c\u6837\u53eb\u201c\u7535\u611f\u201d\u9020\u6210\u6df7\u6dc6\u3002<\/p>\n<p>\u6bcf\u4e2a\u5173\u952e\u5c42\u62cd\u7167\u5e76\u8bb0\u5f55\u4e2d\u95f4\u6d4b\u8bd5\u3002\u7ed5\u9519\u3001\u6f06\u819c\u4f24\u3001\u6f0f\u710a\u548c\u9aa8\u67b6\u6bdb\u523a\u5e94\u6309\u8fd4\u5de5\u89c4\u5219\u5904\u7406\uff0c\u4e0d\u5728\u5185\u90e8\u968f\u610f\u6253\u7ed3\u63a5\u7ebf\u3002\u91cf\u4ea7\u89c4\u683c\u51bb\u7ed3\u540e\uff0c\u4efb\u4f55\u6539\u52a8\u90fd\u5efa\u7acb\u7248\u672c\u5e76\u91cd\u65b0\u786e\u8ba4\u76f8\u5173\u6d4b\u8bd5\u3002<\/p>\n<h3 id=\"314\">31.4 \u9a8c\u6536\u6761\u4ef6<\/h3>\n<p>\u4e3b\u53d8\u538b\u5668\u7684Lm\u3001\u6f0f\u611f\u3001DCR\u3001\u531d\u6bd4\u548c\u6781\u6027\u9700\u6709\u9891\u7387\u4e0e\u8fde\u63a5\u6761\u4ef6\uff1bLo\u9700\u6709\u7535\u611f\u3001DCR\u3001\u504f\u7f6e\u964d\u611f\u548c\u6e29\u5347\u9650\u503c\u3002\u6574\u673a\u5305\u62ec\u8f93\u5165\u8f93\u51fa\u8303\u56f4\u3001\u542f\u52a8\u3001\u52a8\u6001\u3001\u4fdd\u62a4\u3001\u6700\u9ad8\u5e94\u529b\u3001\u70ed\u70b9\u3001\u6548\u7387\u4e0eEMI\u3002<\/p>\n<p>\u7b2c\u4e00\u6b21\u6837\u54c1\u901a\u8fc7\u53ea\u662f\u8d77\u70b9\u3002\u4e0d\u540c\u78c1\u82af\u3001\u7ebf\u6750\u3001\u63a7\u5236\u9608\u503c\u548c\u6e29\u5ea6\u53ef\u80fd\u63a8\u52a8\u6700\u574f\u8fb9\u754c\uff0c\u56e0\u6b64\u6279\u91cf\u4e00\u81f4\u6027\u8981\u9760\u660e\u786e\u89c4\u683c\u548c\u5de5\u827a\uff0c\u800c\u4e0d\u662f\u53ea\u4fdd\u7559\u4e00\u53ea\u201c\u91d1\u6837\u201d\u8ba9\u5de5\u5382\u7167\u7740\u5916\u89c2\u505a\u3002<\/p>\n<h2 id=\"_22\">\u4e09\u5341\u4e8c\u3001\u7ec3\u4e60\u4e0e\u7b54\u6848\uff1a\u68c0\u67e5\u662f\u5426\u771f\u6b63\u8bfb\u61c2\u6b63\u6fc0<\/h2>\n<h3 id=\"_23\">\u7ec3\u4e60\u4e00\uff1a\u7b49\u531d\u590d\u4f4d<\/h3>\n<p>\u521d\u7ea7\u5bfc\u901a4 \u03bcs\u3001\u590d\u4f4d\u7ed5\u7ec4\u4e0e\u521d\u7ea7\u7b49\u531d\uff0c\u7406\u60f3\u590d\u4f4d\u9700\u8981\u591a\u4e45\uff1f\u7b54\u6848\u7ea64 \u03bcs\u3002\u5982\u679c\u5468\u671f10 \u03bcs\uff0c\u8fd8\u6709\u7ea62 \u03bcs\u7b49\u5f85\u3002\u82e5\u5bfc\u901a\u6539\u62106 \u03bcs\uff0c\u5269\u4e0b4 \u03bcs\u4e0d\u8db3\u4ee5\u5b8c\u6210\u590d\u4f4d\uff0c\u4e0d\u80fd\u56e0\u8f93\u51fa\u7535\u611f\u6709DW\u5c31\u7ee7\u7eed\u5de5\u4f5c\u3002<\/p>\n<h3 id=\"_24\">\u7ec3\u4e60\u4e8c\uff1a\u590d\u4f4d\u531d\u6bd4<\/h3>\n<p>Nr\/Np=0.5\u65f6\uff0c\u7406\u60f3\u6700\u5927D\u548cMOSFET\u5e73\u53f0\u662f\u591a\u5c11\uff1f\u7b54\u6848\u7ea62\/3\u548c3Vin\uff0c\u9700\u518d\u7559\u4f59\u91cf\u3002\u590d\u4f4d\u531d\u6570\u5c11\u4f7f\u590d\u4f4d\u66f4\u5feb\uff0c\u540c\u65f6\u63d0\u9ad8\u5f00\u5173\u5e94\u529b\uff0c\u5e76\u975e\u6beb\u65e0\u4ee3\u4ef7\u3002<\/p>\n<h3 id=\"_25\">\u7ec3\u4e60\u4e09\uff1a\u4e3b\u78c1\u901a\u7535\u6d41<\/h3>\n<p>\u521d\u7ea7\u603b\u7535\u6d414 A\u3001\u5176\u4e2d\u52b1\u78c1\u53ea\u67090.08 A\uff0cLm\u5e94\u4e58\u54ea\u4e2a\u7535\u6d41\u4f30\u4e3b\u78c1\u901a\uff1f\u7b54\u6848\u4f7f\u7528\u52b1\u78c1\u76f8\u5173\u7535\u6d41\u6216\u76f4\u63a5\u79ef\u5206\u7ed5\u7ec4\u7535\u538b\u3002\u603b\u8d1f\u8f7d\u7535\u6d41\u7531\u6b21\u7ea7\u5b89\u531d\u4e3b\u8981\u62b5\u6d88\uff0c\u4e0d\u80fd\u76f4\u63a5\u5f53\u52b1\u78c1\u3002<\/p>\n<h3 id=\"_26\">\u7ec3\u4e60\u56db\uff1a\u8f93\u51fa\u7535\u611f\u7eb9\u6ce2<\/h3>\n<p>Vo=5 V\u3001VW=0.45 V\u3001D=0.21248\u3001Lo=68 \u03bcH\u3001100 kHz\uff0c\u0394IL\u7ea6\u591a\u5c11\uff1f\u7b54\u6848\u7ea60.631 A\u3002\u82e5Io=2 A\uff0c\u5cf0\u503c\u7ea62.316 A\uff0c\u4e0d\u80fd\u53ea\u6309\u4e24\u5b89\u9009\u9971\u548c\u7535\u6d41\u3002<\/p>\n<h3 id=\"_27\">\u7ec3\u4e60\u4e94\uff1a\u6574\u6d41\u5668\u5e73\u5747\u7535\u6d41<\/h3>\n<p>Io=2 A\u3001D=0.25\u65f6DF\u4e0eDW\u5e73\u5747\u5206\u522b\u662f\u591a\u5c11\uff1f\u7b54\u68480.5 A\u548c1.5 A\u3002\u4e24\u8005\u5cf0\u503c\u4ecd\u63a5\u8fd1\u8f93\u51fa\u7535\u611f\u5cf0\u503c\uff0c\u5e73\u5747\u7535\u6d41\u4e0d\u80fd\u66ff\u4ee3\u5cf0\u503c\u4e0eRMS\u3002<\/p>\n<h3 id=\"_28\">\u7ec3\u4e60\u516d\uff1a\u53cc\u7ba1\u9a71\u52a8<\/h3>\n<p>\u53cc\u7ba1\u6b63\u6fc0\u7684\u4e24\u53ea\u4e3b\u5f00\u5173\u5e94\u4e92\u8865\u8fd8\u662f\u540c\u65f6\uff1f\u7b54\u6848\u540c\u65f6\u3002\u4e0a\u7ba1VGS\u76f8\u5bf9\u5b83\u81ea\u5df1\u7684\u6e90\u6781\u6d4b\u91cf\uff0c\u4e0d\u80fd\u7528\u70ed\u5730\u4f5c\u4e3a\u5171\u540c\u6805\u538b\u53c2\u8003\uff1b\u590d\u4f4d\u7531\u4e24\u4e2a\u56de\u9988\u4e8c\u6781\u7ba1\u5efa\u7acb\u3002<\/p>\n<h3 id=\"_29\">\u7ec3\u4e60\u4e03\uff1a\u8f93\u51fa\u7535\u5bb9<\/h3>\n<p>\u0394IL=0.6 A\u65f6CCM\u8f93\u51fa\u7535\u5bb9RMS\u7ea6\u591a\u5c11\uff1f\u7b54\u68480.6\/\u221a12\u22480.173 A\u3002\u82e5ESR=20 m\u03a9\uff0c\u5bf9\u5e94\u7eb9\u6ce2\u5206\u91cf\u7ea612 mV\uff0c\u5bb9\u91cf\u7eb9\u6ce2\u8fd8\u8981\u53e6\u7b97\uff0c\u8d1f\u8f7d\u9636\u8dc3\u66f4\u662f\u53e6\u4e00\u65f6\u95f4\u5c3a\u5ea6\u3002<\/p>\n<h3 id=\"_30\">\u7ec3\u4e60\u516b\uff1a\u5e02\u7535\u5355\u7ba1\u8010\u538b<\/h3>\n<p>242 V AC\u7406\u60f3\u6ce2\u5cf0\u7ea6342.2 V\uff0c\u7b49\u531d\u590d\u4f4d\u5355\u7ba1\u7406\u60f3\u5e73\u53f0\u7ea6\u591a\u5c11\uff1f\u7b54\u6848\u7ea6684.5 V\uff0c\u8fd8\u6ca1\u6709\u5c16\u5cf0\u3002\u4e24\u7ba1\u6b63\u6fc0\u6bcf\u7ba1\u7ea6342.2 V\uff0c\u4f46\u4e0d\u80fd\u5ffd\u7565\u9a71\u52a8\u3001\u5bc4\u751f\u4e0e\u6d6a\u6d8c\u3002<\/p>\n<h3 id=\"dcm\">\u7ec3\u4e60\u4e5d\uff1aDCM\u589e\u76ca<\/h3>\n<p>\u5728\u8f7b\u8f7dDCM\u4e0b\u662f\u5426\u8fd8\u80fd\u76f4\u63a5Vo=DkVin\uff1f\u7b54\u6848\u4e0d\u80fd\u3002\u7eed\u6d41\u4e0d\u518d\u5360\u6ee1\u5173\u65ad\u6bb5\uff0c\u5e73\u5747\u8f93\u51fa\u4f9d\u8d56\u8d1f\u8f7d\u3001\u7535\u611f\u3001\u9891\u7387\u548c\u8109\u5bbd\uff1b\u5fc5\u987b\u7528\u4e09\u6bb5\u6ce2\u5f62\u91cd\u65b0\u5efa\u7acb\u5e73\u8861\u3002<\/p>\n<h3 id=\"_31\">\u7ec3\u4e60\u5341\uff1a\u590d\u4f4d\u5b89\u5168\u4e0e\u78c1\u5bc6\u5b89\u5168<\/h3>\n<p>\u67d0\u6b63\u6fc0D=0.45\u5c0f\u4e8e0.5\uff0c\u662f\u5426\u5fc5\u7136\u4e0d\u4f1a\u9971\u548c\uff1f\u7b54\u6848\u4e0d\u662f\u3002\u8f93\u5165\u9ad8\u3001\u9891\u7387\u4f4e\u3001\u531d\u6570\u5c11\u6216\u8d77\u59cb\u504f\u78c1\u4ecd\u53ef\u80fd\u8ba9\u0394B\u8fc7\u5927\uff1b\u9700\u8981\u540c\u65f6\u7ea6\u675f\u590d\u4f4d\u65f6\u95f4\u548c\u6700\u5927\u4f0f\u79d2\u3002<\/p>\n<h2 id=\"_32\">\u53c2\u8003\u8d44\u6599\u4e0e\u8fdb\u4e00\u6b65\u9605\u8bfb<\/h2>\n<p>\u672c\u6587\u4e24\u4e2a\u7b97\u4f8b\u4e0e\u6570\u503c\u8868\u4e3a\u539f\u521b\u6559\u5b66\u63a8\u5bfc\uff0c\u4e3b\u8981\u4f9d\u636e\u7535\u611f\u7535\u538b\u5b9a\u5f8b\u3001\u5b89\u531d\u5173\u7cfb\u3001\u4f0f\u79d2\u548c\u80fd\u91cf\u5e73\u8861\u5efa\u7acb\u3002\u4ee5\u4e0b\u5b98\u65b9\u8d44\u6599\u7528\u4e8e\u6838\u5bf9\u5177\u4f53\u62d3\u6251\u548c\u5668\u4ef6\u6a21\u578b\uff1b\u9605\u8bfb\u65f6\u5148\u6838\u5bf9\u531d\u6bd4\u5b9a\u4e49\u3001\u590d\u4f4d\u7535\u538b\u53c2\u8003\u70b9\u548c\u63a7\u5236\u6a21\u5f0f\uff0c\u4e0d\u80fd\u5c06\u4e0d\u540c\u8d44\u6599\u7684\u7b26\u53f7\u65e0\u8f6c\u6362\u6df7\u7528\u3002<\/p>\n<ol>\n<li><a href=\"https:\/\/www.ti.com\/document-viewer\/lit\/html\/SLVAFW4\/GUID-4DD98635-9347-4982-83EE-1DCED3233664\">TI\uff1aHow to Approach a Power-Supply Design\u2014Part 7<\/a>\uff1a\u5355\u7ba1\u3001\u53cc\u7ba1\u4e0e\u6709\u6e90\u94b3\u4f4d\u6b63\u6fc0\u7684\u5165\u95e8\u62d3\u6251\u548c\u6ce2\u5f62\u3002<\/li>\n<li><a href=\"https:\/\/www.ti.com\/lit\/ml\/slup126\/slup126.pdf\">TI\uff1aPower Transformer Design\uff0cSLUP126<\/a>\uff1aBuck\u6d3e\u751f\u9694\u79bb\u62d3\u6251\u4e2d\u4f20\u80fd\u53d8\u538b\u5668\u3001\u52b1\u78c1\u548c\u6f0f\u611f\u7684\u8bbe\u8ba1\u6982\u5ff5\u3002<\/li>\n<li><a href=\"https:\/\/ww1.microchip.com\/downloads\/aemDocuments\/documents\/OTH\/ApplicationNotes\/ApplicationNotes\/01207B.pdf\">Microchip\uff1aAN1207\uff0cSwitch Mode Power Supply Topologies\u2014Part II<\/a>\uff1a\u5355\u7ba1\u4e0e\u53cc\u7ba1\u6b63\u6fc0\u7684\u8bbe\u8ba1\u7ae0\u8282\uff0c\u53ef\u9010\u9879\u5bf9\u7167\u529f\u7387\u8def\u5f84\u3002<\/li>\n<li><a href=\"https:\/\/www.ti.com\/lit\/an\/slua322\/slua322.pdf\">TI\uff1aActive Clamp Transformer Reset\u2014High Side or Low Side\uff0cSLUA322<\/a>\uff1a\u6709\u6e90\u94b3\u4f4d\u4e0d\u540c\u8fde\u63a5\u65b9\u5f0f\u4e0b\u7684\u7535\u538b\u5b9a\u4e49\u4e0e\u5668\u4ef6\u9009\u62e9\u3002<\/li>\n<li><a href=\"https:\/\/www.ti.com\/lit\/ds\/symlink\/ucc2897a.pdf\">TI\uff1aUCC2897A\u6570\u636e\u624b\u518c<\/a>\uff1a\u6709\u6e90\u94b3\u4f4d\u63a7\u5236\u5668\u7684\u65f6\u5e8f\u3001\u6700\u5927\u5360\u7a7a\u6bd4\u3001\u659c\u5761\u4e0e\u4fdd\u62a4\u5b9e\u4f8b\uff1b\u672c\u6587\u5e76\u672a\u628a\u5b83\u6307\u5b9a\u4e3a\u4e24\u4e2a\u666e\u901a\u6b63\u6fc0\u7b97\u4f8b\u7684\u6700\u7ec8\u63a7\u5236\u5668\u3002<\/li>\n<li><a href=\"https:\/\/www.ti.com\/lit\/ml\/slup197\/slup197.pdf\">TI\uff1aEddy Current Losses in Transformer Windings\uff0cSLUP197<\/a>\uff1a\u8d8b\u80a4\u3001\u90bb\u8fd1\u6548\u5e94\u548c\u7ed5\u7ec4\u7ed3\u6784\u5bf9\u9ad8\u9891\u94dc\u635f\u7684\u5f71\u54cd\u3002<\/li>\n<li><a href=\"https:\/\/www.tdk-electronics.tdk.com\/download\/187036\/dbcde584d155cc270f5d5dbf1efec233\/pdf-generaldefinitions.pdf\">TDK\uff1aFerrite Cores General Definitions<\/a>\uff1aAe\u3001Amin\u3001Ve\u3001AL\u7b49\u78c1\u82af\u53c2\u6570\u7684\u5b9a\u4e49\u3002<\/li>\n<\/ol>\n<p>\u5b66\u4e60\u65f6\u53ef\u5148\u5728\u5408\u9002\u7684\u9694\u79bb\u4f4e\u538b\u5e73\u53f0\u9a8c\u8bc1\u540c\u540d\u7aef\u3001\u4f20\u80fd\u3001\u7eed\u6d41\u548c\u590d\u4f4d\uff0c\u518d\u628a\u540c\u6837\u5206\u6790\u65b9\u6cd5\u7528\u4e8e\u5e02\u7535\u3002\u771f\u6b63\u5b8c\u6210\u6b63\u6fc0\u8bbe\u8ba1\uff0c\u4e0d\u53ea\u662f\u8f93\u51fa\u7aef\u6d4b\u5230\u76ee\u6807\u7535\u538b\uff0c\u800c\u662f\u6bcf\u4e2a\u8109\u51b2\u90fd\u6709\u8db3\u591f\u590d\u4f4d\u3001\u6bcf\u4e2a\u78c1\u4ef6\u6709\u53d7\u63a7\u78c1\u5bc6\u3001\u6bcf\u53ea\u5668\u4ef6\u6709\u53ef\u89e3\u91ca\u5e94\u529b\uff0c\u5e76\u4e14\u6240\u6709\u6b63\u5e38\u4e0e\u5f02\u5e38\u6761\u4ef6\u90fd\u80fd\u901a\u8fc7\u6d4b\u91cf\u9a8c\u8bc1\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9762\u5411\u521d\u5b66\u8005\u7684\u6b63\u6fc0\u7535\u6e90\u5b8c\u6574\u6559\u7a0b\uff0c\u8be6\u89e3\u5355\u7ba1\u4e0e\u53cc\u7ba1\u62d3\u6251\u3001\u78c1\u82af\u590d\u4f4d\u3001\u53d8\u538b\u5668\u548c\u8f93\u51fa\u7535\u611f\u8ba1\u7b97\u3001\u4e09\u660e\u6cbb\u7ed5\u6cd5\u3001\u53cd\u9988\u4e0e\u8c03\u8bd5\u3002\u542b36\uff5e60V\u8f93\u516512V\/5A\u5355\u7ba1\u3001220V\u4ea4\u6d41\u8f93\u51655V\/2A\u53cc\u7ba1\u4e24\u4e2a\u5b8c\u6574\u7b97\u4f8b\uff0c\u4ee5\u53ca\u516c\u5f0f\u3001\u6ce2\u5f62\u4e0e\u5de5\u827a\u5361\u3002<\/p>\n","protected":false},"author":2,"featured_media":170,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[58,42,24,56,55,52,41,57],"class_list":["post-169","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-study","tag-58","tag-42","tag-24","tag-56","tag-55","tag-52","tag-41","tag-57"],"_links":{"self":[{"href":"https:\/\/www.oldhamburger.cn\/index.php\/wp-json\/wp\/v2\/posts\/169","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oldhamburger.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.oldhamburger.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.oldhamburger.cn\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.oldhamburger.cn\/index.php\/wp-json\/wp\/v2\/comments?post=169"}],"version-history":[{"count":1,"href":"https:\/\/www.oldhamburger.cn\/index.php\/wp-json\/wp\/v2\/posts\/169\/revisions"}],"predecessor-version":[{"id":183,"href":"https:\/\/www.oldhamburger.cn\/index.php\/wp-json\/wp\/v2\/posts\/169\/revisions\/183"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.oldhamburger.cn\/index.php\/wp-json\/wp\/v2\/media\/170"}],"wp:attachment":[{"href":"https:\/\/www.oldhamburger.cn\/index.php\/wp-json\/wp\/v2\/media?parent=169"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.oldhamburger.cn\/index.php\/wp-json\/wp\/v2\/categories?post=169"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.oldhamburger.cn\/index.php\/wp-json\/wp\/v2\/tags?post=169"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}