{"id":84,"date":"2026-09-09T14:18:20","date_gmt":"2026-09-09T06:18:20","guid":{"rendered":"https:\/\/www.oldhamburger.cn\/?p=84"},"modified":"2026-09-09T16:23:15","modified_gmt":"2026-09-09T08:23:15","slug":"%e6%ad%a3%e6%bf%80%e3%80%81%e5%8f%8d%e6%bf%80%e3%80%81%e6%8e%a8%e6%8c%bd%e3%80%81%e5%8d%8a%e6%a1%a5%e4%b8%8e%e5%85%a8%e6%a1%a5%ef%bc%9a%e9%9a%94%e7%a6%bb%e5%9e%8b%e5%bc%80%e5%85%b3%e7%94%b5%e6%ba%90","status":"publish","type":"post","link":"https:\/\/www.oldhamburger.cn\/index.php\/2026\/09\/09\/%e6%ad%a3%e6%bf%80%e3%80%81%e5%8f%8d%e6%bf%80%e3%80%81%e6%8e%a8%e6%8c%bd%e3%80%81%e5%8d%8a%e6%a1%a5%e4%b8%8e%e5%85%a8%e6%a1%a5%ef%bc%9a%e9%9a%94%e7%a6%bb%e5%9e%8b%e5%bc%80%e5%85%b3%e7%94%b5%e6%ba%90\/","title":{"rendered":"\u6b63\u6fc0\u3001\u53cd\u6fc0\u3001\u63a8\u633d\u3001\u534a\u6865\u4e0e\u5168\u6865\uff1a\u9694\u79bb\u578b\u5f00\u5173\u7535\u6e90\u62d3\u6251\u8be6\u89e3\u3001\u533a\u522b\u4e0e\u8ba1\u7b97"},"content":{"rendered":"<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/09\/power-topologies-cover.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"2443\" height=\"1220\" data-original=\"https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/09\/power-topologies-cover.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\u4e94\u79cd\u9694\u79bb\u7535\u6e90\u62d3\u6251\u7684\u539f\u8fb9\u6fc0\u52b1\u6ce2\u5f62\u5bf9\u6bd4\" class=\"wp-image-90\" style=\"width:100%;height:auto\"  sizes=\"auto, (max-width: 2443px) 100vw, 2443px\" \/><\/div><figcaption>\u56fe 1\uff1a\u7406\u60f3\u5316\u539f\u8fb9\u7ed5\u7ec4\u7535\u538b\u3002\u63a8\u633d\u89c2\u5bdf\u56fa\u5b9a\u7684\u4e00\u4e2a\u534a\u539f\u8fb9\uff1b\u534a\u6865\u539f\u8fb9\u5e45\u503c\u4e3a\u6bcd\u7ebf\u7535\u538b\u7684\u4e00\u534a\u3002<\/figcaption><\/figure>\n<p><strong>\u6458\u8981\uff1a<\/strong>\u9694\u79bb\u578b DC-DC \u4e0e AC-DC \u7535\u6e90\u4e2d\uff0c\u6b63\u6fc0\u3001\u53cd\u6fc0\u3001\u63a8\u633d\u3001\u534a\u6865\u3001\u5168\u6865\u662f\u6700\u5e38\u89c1\u7684\u4e94\u7c7b\u78c1\u6027\u5143\u4ef6\u62d3\u6251\u3002\u5b83\u4eec\u90fd\u5229\u7528\u9ad8\u9891\u5f00\u5173\u628a\u80fd\u91cf\u9001\u5165\u53d8\u538b\u5668\u6216\u8026\u5408\u7535\u611f\uff0c\u518d\u7ecf\u6574\u6d41\u3001\u6ee4\u6ce2\u5f97\u5230\u7a33\u5b9a\u8f93\u51fa\uff0c\u4f46\u80fd\u91cf\u4f20\u9012\u8def\u5f84\u3001\u78c1\u82af\u590d\u4f4d\u65b9\u5f0f\u3001\u5f00\u5173\u7ba1\u7535\u538b\u5e94\u529b\u3001\u53d8\u538b\u5668\u5229\u7528\u7387\u548c\u9002\u7528\u529f\u7387\u8303\u56f4\u5dee\u5f02\u5f88\u5927\u3002\u672c\u6587\u4ece\u7edf\u4e00\u7684\u4f0f\u79d2\u5e73\u8861\u548c\u529f\u7387\u4f30\u7b97\u51fa\u53d1\uff0c\u9010\u4e00\u7ed9\u51fa\u7535\u8def\u62d3\u6251\u3001\u5de5\u4f5c\u8fc7\u7a0b\u3001\u5173\u952e\u516c\u5f0f\u3001\u8bbe\u8ba1\u6b65\u9aa4\u3001\u635f\u8017\u6765\u6e90\u3001\u6ce2\u5f62\u95ee\u9898\u4e0e\u9009\u578b\u5efa\u8bae\u3002<\/p>\n<p><strong>\u9605\u8bfb\u63d0\u793a\uff1a<\/strong>\u6587\u4e2d\u7684\u516c\u5f0f\u5747\u91c7\u7528\u7406\u60f3\u5316\u4e00\u9636\u6a21\u578b\uff0c\u5b9e\u9645\u8bbe\u8ba1\u8fd8\u8981\u52a0\u5165\u6f0f\u611f\u3001\u538b\u964d\u3001\u6b7b\u533a\u3001\u78c1\u82af\u635f\u8017\u3001\u6e29\u5347\u3001EMI \u548c\u63a7\u5236\u73af\u8def\u88d5\u91cf\u3002\u7b26\u53f7\u7ea6\u5b9a\uff1a\u8f93\u5165\u7535\u538b\u4e3a <em>V<sub>in<\/sub><\/em>\uff0c\u8f93\u51fa\u7535\u538b\u4e3a <em>V<sub>o<\/sub><\/em>\uff0c\u5f00\u5173\u9891\u7387\u4e3a <em>f<sub>s<\/sub><\/em>\uff0c\u5360\u7a7a\u6bd4\u4e3a <em>D<\/em>\uff0c\u53d8\u538b\u5668\u531d\u6bd4 <em>n=N<sub>p<\/sub>\/N<sub>s<\/sub><\/em>\uff0c\u6548\u7387\u4e3a \u03b7\u3002<\/p>\n<h2>\u4e00\u3001\u5148\u5efa\u7acb\u5171\u540c\u8bed\u8a00\uff1a\u4e94\u79cd\u62d3\u6251\u5230\u5e95\u5728\u6bd4\u8f83\u4ec0\u4e48<\/h2>\n<h3>1. \u9694\u79bb\u4e0e\u975e\u9694\u79bb<\/h3>\n<p>\u53d8\u538b\u5668\u63d0\u4f9b\u7535\u6c14\u9694\u79bb\u3001\u963b\u6297\u53d8\u6362\u548c\u7535\u538b\u53d8\u6362\u3002\u539f\u8fb9\u548c\u526f\u8fb9\u6ca1\u6709\u76f4\u6d41\u5bfc\u901a\u8def\u5f84\uff0c\u5b89\u5168\u8ba4\u8bc1\u3001\u8f93\u51fa\u63a5\u5730\u65b9\u5f0f\u548c\u5171\u6a21\u566a\u58f0\u90fd\u56e0\u6b64\u53d7\u5230\u5f71\u54cd\u3002\u53cd\u6fc0\u4f7f\u7528\u201c\u53d8\u538b\u5668\u5f0f\u8026\u5408\u7535\u611f\u201d\u50a8\u80fd\uff1b\u6b63\u6fc0\u3001\u63a8\u633d\u3001\u534a\u6865\u3001\u5168\u6865\u4e3b\u8981\u5728\u78c1\u82af\u4f20\u8f93\u80fd\u91cf\u3002<\/p>\n<h3>2. \u78c1\u901a\u5fc5\u987b\u590d\u4f4d<\/h3>\n<p>\u78c1\u82af\u6ee1\u8db3 <strong>v=N\u00b7d\u03a6\/dt<\/strong>\u3002\u82e5\u4e00\u4e2a\u5468\u671f\u5185\u6b63\u3001\u8d1f\u4f0f\u79d2\u4e0d\u5e73\u8861\uff0c\u78c1\u901a\u4f1a\u9010\u5468\u671f\u504f\u79fb\uff0c\u6700\u540e\u8fdb\u5165\u9971\u548c\u3002\u8bbe\u8ba1\u65f6\u5fc5\u987b\u6ee1\u8db3\uff1a<\/p>\n<p style='text-align:center'><strong>\u222bv<sub>p<\/sub>(t)dt = 0<\/strong>\uff08\u7a33\u6001\u4f0f\u79d2\u5e73\u8861\uff09<\/p>\n<p>\u6b63\u6fc0\u4f9d\u9760\u590d\u4f4d\u7ed5\u7ec4\u6216\u6709\u6e90\u7b9d\u4f4d\uff0c\u53cd\u6fc0\u5728\u5173\u65ad\u671f\u95f4\u7531\u526f\u8fb9\u91ca\u653e\u80fd\u91cf\u5e76\u4f7f\u78c1\u82af\u56de\u5230\u8d77\u70b9\uff0c\u63a8\u633d\u4f9d\u9760\u4e24\u534a\u539f\u8fb9\u4ea4\u66ff\u6fc0\u52b1\uff0c\u534a\u6865\u548c\u5168\u6865\u5929\u7136\u63d0\u4f9b\u6b63\u8d1f\u5bf9\u79f0\u7535\u538b\u4f46\u4ecd\u9700\u63a7\u5236\u6b7b\u533a\u548c\u504f\u78c1\u3002<\/p>\n<h3>3. \u529f\u7387\u8303\u56f4\u7684\u7c97\u7565\u5206\u754c<\/h3>\n<table>\n<tr>\n<th>\u62d3\u6251<\/th>\n<th>\u5e38\u89c1\u529f\u7387\u533a\u95f4<\/th>\n<th>\u5178\u578b\u5f00\u5173\u9891\u7387<\/th>\n<th>\u4e3b\u8981\u4f18\u70b9<\/th>\n<th>\u4e3b\u8981\u9650\u5236<\/th>\n<\/tr>\n<tr>\n<td>\u53cd\u6fc0<\/td>\n<td>1\uff5e150 W\uff08\u7279\u6b8a\u8bbe\u8ba1\u53ef\u66f4\u9ad8\uff09<\/td>\n<td>50\uff5e200 kHz<\/td>\n<td>\u5668\u4ef6\u5c11\u3001\u6210\u672c\u4f4e\u3001\u53ef\u591a\u8def\u8f93\u51fa<\/td>\n<td>\u5cf0\u503c\u7535\u6d41\u5927\u3001\u7eb9\u6ce2\u4e0e EMI \u8f83\u96be<\/td>\n<\/tr>\n<tr>\n<td>\u6b63\u6fc0<\/td>\n<td>50\uff5e500 W<\/td>\n<td>50\uff5e300 kHz<\/td>\n<td>\u8f93\u51fa\u7eb9\u6ce2\u5c0f\u3001\u6548\u7387\u8f83\u9ad8<\/td>\n<td>\u9700\u8981\u590d\u4f4d\uff0c\u78c1\u82af\u5229\u7528\u7387\u6709\u9650<\/td>\n<\/tr>\n<tr>\n<td>\u63a8\u633d<\/td>\n<td>100 W\uff5e1 kW<\/td>\n<td>20\uff5e200 kHz<\/td>\n<td>\u53d8\u538b\u5668\u5229\u7528\u7387\u9ad8\u3001\u9002\u5408\u4f4e\u538b\u5927\u7535\u6d41\u8f93\u5165<\/td>\n<td>\u5f00\u5173\u7ba1\u7535\u538b\u5c16\u5cf0\u548c\u504f\u78c1\u654f\u611f<\/td>\n<\/tr>\n<tr>\n<td>\u534a\u6865<\/td>\n<td>300 W\uff5e2 kW<\/td>\n<td>50\uff5e300 kHz<\/td>\n<td>\u5f00\u5173\u7ba1\u7535\u538b\u5e94\u529b\u4f4e\u3001\u9002\u5408\u9ad8\u538b\u6bcd\u7ebf<\/td>\n<td>\u9700\u8981\u4e0a\u4e0b\u7ba1\u9a71\u52a8\u548c\u7535\u5bb9\u5e73\u8861<\/td>\n<\/tr>\n<tr>\n<td>\u5168\u6865<\/td>\n<td>500 W\uff5e\u6570\u5341 kW<\/td>\n<td>20\uff5e200 kHz<\/td>\n<td>\u529f\u7387\u5bc6\u5ea6\u9ad8\u3001\u53d8\u538b\u5668\u5229\u7528\u5145\u5206<\/td>\n<td>\u5668\u4ef6\u591a\u3001\u9a71\u52a8\u4e0e\u5e03\u5c40\u590d\u6742<\/td>\n<\/tr>\n<\/table>\n<h2>\u4e8c\u3001\u53cd\u6fc0\uff08Flyback\uff09\uff1a\u5148\u50a8\u80fd\uff0c\u540e\u653e\u80fd<\/h2>\n<h3>1. \u62d3\u6251\u4e0e\u7535\u6d41\u8def\u5f84<\/h3>\n<pre>      \u539f\u8fb9                          \u526f\u8fb9\nVin \u2500\u2500Np\u2500\u2500\u25cf\u2500\u2500\u2500\u2500Q\u2500\u2500\u2500\u2500GND       \u25cf\u2500\u2500|&gt;|\u2500\u2500L_o\u2500\u2500+\u2500\u2500Vo\n          \u2502    MOSFET          Ns  D_s       \u2502\n          \u2514\u2500\u2500RCD\/\u6709\u6e90\u7b9d\u4f4d\u2500\u2500\u2518                 C_o\n                                             \u2502\n                                            GND<\/pre>\n<p>\u53cd\u6fc0\u53d8\u538b\u5668\u7684\u78c1\u5316\u7535\u611f L<sub>m<\/sub> \u5c31\u662f\u50a8\u80fd\u5143\u4ef6\u3002Q \u5bfc\u901a\u65f6\uff0c\u539f\u8fb9\u7535\u6d41\u4e0a\u5347\uff0c\u526f\u8fb9\u4e8c\u6781\u7ba1\u53cd\u504f\uff0c\u80fd\u91cf\u5b58\u5165\u78c1\u82af\u6c14\u9699\uff1bQ \u5173\u65ad\u65f6\uff0c\u78c1\u573a\u584c\u7f29\uff0c\u526f\u8fb9\u6781\u6027\u7ffb\u8f6c\uff0cD<sub>s<\/sub> \u5bfc\u901a\uff0c\u628a\u50a8\u5b58\u80fd\u91cf\u9001\u5230\u8f93\u51fa\u3002<\/p>\n<h3>2. \u5173\u952e\u8ba1\u7b97<\/h3>\n<p>\u5728\u8fde\u7eed\u5bfc\u901a\u6a21\u5f0f CCM \u4e0b\uff0c\u539f\u8fb9\u78c1\u5316\u7535\u6d41\u7eb9\u6ce2\uff1a<\/p>\n<p style='text-align:center'>\u0394I<sub>p<\/sub> = V<sub>in<\/sub>\u00b7D \/(L<sub>m<\/sub>\u00b7f<sub>s<\/sub>)<\/p>\n<p>\u50a8\u80fd\u5cf0\u503c E = \u00bdL<sub>m<\/sub>I<sub>pk<\/sub><sup>2<\/sup>\uff0c\u6bcf\u5468\u671f\u4f20\u8f93\u529f\u7387\u8fd1\u4f3c P<sub>o<\/sub>\u2248\u03b7\u00b7\u00bdL<sub>m<\/sub>I<sub>pk<\/sub><sup>2<\/sup>f<sub>s<\/sub>\u3002\u56e0\u6b64\uff1a<\/p>\n<p style='text-align:center'>L<sub>m<\/sub> \u2248 2P<sub>o<\/sub> \/(\u03b7\u00b7I<sub>pk<\/sub><sup>2<\/sup>\u00b7f<sub>s<\/sub>)<\/p>\n<p>\u7406\u60f3 CCM \u7535\u538b\u589e\u76ca\u4e3a\uff1a<\/p>\n<p style='text-align:center'>V<sub>o<\/sub> = (N<sub>s<\/sub>\/N<sub>p<\/sub>)\u00b7V<sub>in<\/sub>\u00b7D\/(1\u2212D)<\/p>\n<p>\u82e5\u8003\u8651\u4e8c\u6781\u7ba1\u538b\u964d V<sub>D<\/sub> \u4e0e MOSFET \u5bfc\u901a\u538b\u964d\uff0c\u53ef\u628a\u526f\u8fb9\u6709\u6548\u7535\u538b\u5199\u6210 V<sub>o<\/sub>+V<sub>D<\/sub>\uff0c\u5e76\u6309\u6700\u4f4e\u8f93\u5165\u3001\u6700\u5927\u5360\u7a7a\u6bd4\u6821\u6838\u3002DCM \u65f6\u589e\u76ca\u8fd8\u4e0e\u8d1f\u8f7d\u3001L<sub>m<\/sub> \u548c\u9891\u7387\u76f8\u5173\uff0c\u4e0d\u80fd\u76f4\u63a5\u5957 CCM \u516c\u5f0f\u3002<\/p>\n<h3>3. \u5668\u4ef6\u5e94\u529b\u4e0e\u7b9d\u4f4d<\/h3>\n<p>MOSFET \u5173\u65ad\u77ac\u95f4\u627f\u53d7\uff1a<\/p>\n<p style='text-align:center'>V<sub>DS,max<\/sub>\u2248V<sub>in,max<\/sub> + n(V<sub>o<\/sub>+V<sub>D<\/sub>) + V<sub>spike<\/sub><\/p>\n<p>\u6f0f\u611f\u80fd\u91cf\u4f1a\u9020\u6210\u5c16\u5cf0\uff0c\u5e38\u7528 RCD\u3001TVS\u3001LCD \u6216\u6709\u6e90\u7b9d\u4f4d\u5438\u6536\u3002\u4e8c\u6781\u7ba1\u53cd\u5411\u8010\u538b\u7ea6\u4e3a V<sub>RRM<\/sub>\u2248V<sub>o<\/sub>+V<sub>in,max<\/sub>\/n\uff0c\u5fc5\u987b\u7559\u51fa\u6e29\u5ea6\u548c\u77ac\u6001\u88d5\u91cf\u3002<\/p>\n<h3>4. \u53cd\u6fc0\u7684\u7279\u70b9<\/h3>\n<p>\u4f18\u70b9\u662f\u5668\u4ef6\u6570\u91cf\u5c11\u3001\u53d8\u538b\u5668\u517c\u5177\u7535\u611f\u529f\u80fd\u3001\u53ef\u5b9e\u73b0\u5bbd\u8f93\u5165\u548c\u591a\u8def\u8f93\u51fa\uff0c\u5f85\u673a\u529f\u8017\u4e5f\u5bb9\u6613\u505a\u5230\u5f88\u4f4e\u3002\u7f3a\u70b9\u662f\u539f\u526f\u8fb9\u5cf0\u503c\u7535\u6d41\u9ad8\uff0c\u8f93\u51fa\u7535\u5bb9 RMS \u7535\u6d41\u5927\uff0c\u5f00\u5173\u8282\u70b9 dv\/dt \u5f3a\uff0c\u6f0f\u611f\u5c16\u5cf0\u548c EMI \u8bbe\u8ba1\u5360\u4e3b\u8981\u5de5\u4f5c\u91cf\u3002\u8f93\u51fa\u529f\u7387\u8d85\u8fc7\u7ea6 100\uff5e150 W \u540e\uff0c\u6b63\u6fc0\u6216\u6865\u5f0f\u62d3\u6251\u901a\u5e38\u66f4\u6709\u4f18\u52bf\u3002<\/p>\n<h2>\u4e09\u3001\u6b63\u6fc0\uff08Forward\uff09\uff1a\u5bfc\u901a\u65f6\u76f4\u63a5\u4f20\u80fd\uff0c\u5173\u65ad\u65f6\u590d\u4f4d<\/h2>\n<h3>1. \u5355\u7ba1\u6b63\u6fc0\u62d3\u6251<\/h3>\n<pre>Vin \u2500\u2500Np\u2500\u2500Q\u2500\u2500\u2500\u2500GND       Ns\u2500\u2500|&gt;|\u2500\u2500L_o\u2500\u2500Vo\n       \u2502   \u2502              D_f\uff08\u7eed\u6d41\uff09\u2502\n       \u2514\u2500\u590d\u4f4d\u7ed5\u7ec4Nr\u2500D_r\u2500\u2518             C_o<\/pre>\n<p>Q \u5bfc\u901a\u65f6\uff0c\u53d8\u538b\u5668\u526f\u8fb9\u7acb\u5373\u5f97\u5230\u7535\u538b\uff0c\u6574\u6d41\u4e8c\u6781\u7ba1\u5bfc\u901a\uff0c\u7535\u611f L<sub>o<\/sub> \u50a8\u80fd\u5e76\u5411\u8d1f\u8f7d\u4f9b\u7535\uff1bQ \u5173\u65ad\u65f6\uff0c\u526f\u8fb9\u4e3b\u4e8c\u6781\u7ba1\u622a\u6b62\uff0c\u7eed\u6d41\u4e8c\u6781\u7ba1\u63a5\u7ba1\u7535\u611f\u7535\u6d41\u3002\u539f\u8fb9\u78c1\u5316\u80fd\u91cf\u4e0d\u80fd\u50cf\u53cd\u6fc0\u90a3\u6837\u7559\u5728\u78c1\u82af\u4e2d\u7b49\u5f85\u91ca\u653e\uff0c\u56e0\u6b64\u5fc5\u987b\u7528\u590d\u4f4d\u7ed5\u7ec4\u3001RCD \u6216\u6709\u6e90\u7b9d\u4f4d\u628a\u78c1\u901a\u9000\u56de\u3002<\/p>\n<h3>2. \u7535\u538b\u589e\u76ca\u4e0e\u5360\u7a7a\u6bd4\u9650\u5236<\/h3>\n<p>\u7406\u60f3\u60c5\u51b5\u4e0b\uff1a<\/p>\n<p style='text-align:center'>V<sub>o<\/sub>\u2248D\u00b7(N<sub>s<\/sub>\/N<sub>p<\/sub>)\u00b7V<sub>in<\/sub> \u2212 \u538b\u964d\u9879<\/p>\n<p>\u4e09\u7ed5\u7ec4\u590d\u4f4d\u65f6\uff0c\u590d\u4f4d\u7ed5\u7ec4\u531d\u6570\u901a\u5e38\u53d6 N<sub>r<\/sub>\u2248N<sub>p<\/sub>\uff0c\u6700\u5927\u5360\u7a7a\u6bd4\u9700\u6ee1\u8db3 D<sub>max<\/sub>\u22640.5\uff0c\u4ee5\u4fbf\u5728\u5173\u65ad\u65f6\u95f4\u5185\u5b8c\u6210\u7b49\u5e45\u53cd\u5411\u590d\u4f4d\u3002\u82e5 N<sub>r<\/sub>&lt;N<sub>p<\/sub>\uff0c\u590d\u4f4d\u7535\u538b\u53d8\u5927\uff0c\u5360\u7a7a\u6bd4\u53ef\u63d0\u9ad8\uff0c\u4f46 Q \u7684\u5173\u65ad\u7535\u538b\u4e5f\u968f\u4e4b\u5347\u9ad8\u3002<\/p>\n<h3>3. \u8f93\u51fa\u7535\u611f\u8ba1\u7b97<\/h3>\n<p>\u8bbe\u526f\u8fb9\u5bfc\u901a\u7535\u538b\u4e3a V<sub>s<\/sub>=V<sub>in<\/sub>\/n\uff0c\u7535\u611f\u7eb9\u6ce2\u6307\u6807\u4e3a \u0394I<sub>L<\/sub>\uff0c\u5219\uff1a<\/p>\n<p style='text-align:center'>L<sub>o<\/sub> = (V<sub>s<\/sub>\u2212V<sub>o<\/sub>)\u00b7D \/(\u0394I<sub>L<\/sub>\u00b7f<sub>s<\/sub>)<\/p>\n<p>\u5173\u65ad\u671f\u95f4\u7535\u611f\u4e24\u7aef\u7ea6\u4e3a \u2212V<sub>o<\/sub>\uff0c\u8fde\u7eed\u5bfc\u901a\u6761\u4ef6\u4e3a I<sub>o<\/sub>&gt;\u0394I<sub>L<\/sub>\/2\u3002\u4e8c\u6781\u7ba1\u548c\u7535\u611f\u7684 RMS \u7535\u6d41\u51b3\u5b9a\u94dc\u635f\u4e0e\u6e29\u5347\u3002<\/p>\n<h3>4. \u6b63\u6fc0\u4e0e\u53cd\u6fc0\u7684\u6839\u672c\u533a\u522b<\/h3>\n<p>\u6b63\u6fc0\u5728\u5f00\u5173\u7ba1\u5bfc\u901a\u671f\u95f4\u4f20\u80fd\uff0c\u8f93\u51fa\u7535\u611f\u8d1f\u8d23\u5e73\u6ed1\uff1b\u53cd\u6fc0\u5728\u5f00\u5173\u7ba1\u5173\u65ad\u671f\u95f4\u4f20\u80fd\uff0c\u78c1\u5316\u7535\u611f\u8d1f\u8d23\u50a8\u80fd\u3002\u56e0\u6b64\u76f8\u540c\u529f\u7387\u4e0b\uff0c\u6b63\u6fc0\u5cf0\u503c\u7535\u6d41\u901a\u5e38\u66f4\u4f4e\u3001\u8f93\u51fa\u7eb9\u6ce2\u66f4\u5c0f\u3001\u6548\u7387\u66f4\u9ad8\uff0c\u4f46\u9700\u8981\u989d\u5916\u590d\u4f4d\u7f51\u7edc\u548c\u66f4\u591a\u78c1\u6027\u5143\u4ef6\u3002<\/p>\n<h2>\u56db\u3001\u63a8\u633d\uff08Push-Pull\uff09\uff1a\u4f4e\u538b\u8f93\u5165\u7684\u4ea4\u66ff\u52b1\u78c1<\/h2>\n<h3>1. \u4e2d\u5fc3\u62bd\u5934\u63a8\u633d\u62d3\u6251<\/h3>\n<pre>             Q1                 D1\u2500\u2500L_o\u2500\u2500Vo\nVin \u2500\u2500\u25cf\u2500\u2500Np\/2\u2500\u2500\u2524                \u250c\u2500|&gt;|\u2500\u2500\u2500\u2500\u2524\n      \u2502        \u2514\u2500GND     Ns     \u2502        C_o\n      \u2514\u2500\u2500Np\/2\u2500\u2500Q2\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524\u251c\u2500\u2500\u2500\u2500\u2500\u2500\u2518\n                         \u2502       D2\uff08\u53e6\u4e00\u534a\u5468\uff09<\/pre>\n<p>\u53d8\u538b\u5668\u539f\u8fb9\u4e2d\u5fc3\u62bd\u5934\u63a5\u8f93\u5165\uff0cQ1\u3001Q2 \u4ea4\u66ff\u5bfc\u901a\u3002Q1 \u5bfc\u901a\u65f6\uff0c\u78c1\u901a\u5411\u4e00\u4e2a\u65b9\u5411\u53d8\u5316\uff1bQ2 \u5bfc\u901a\u65f6\uff0c\u53e6\u4e00\u534a\u539f\u8fb9\u4ea7\u751f\u76f8\u53cd\u78c1\u901a\u3002\u526f\u8fb9\u7ecf\u5168\u6ce2\u6574\u6d41\u5f97\u5230\u9ad8\u9891\u8109\u52a8\uff0c\u518d\u7531\u7535\u611f\u7535\u5bb9\u6ee4\u6ce2\u3002<\/p>\n<h3>2. \u7535\u538b\u5173\u7cfb\u4e0e\u5360\u7a7a\u6bd4<\/h3>\n<p>\u7406\u60f3\u63a8\u633d\u7684\u526f\u8fb9\u6574\u6d41\u5e73\u5747\u7535\u538b\u53ef\u8fd1\u4f3c\u5199\u6210\uff1a<\/p>\n<p style='text-align:center'>V<sub>o<\/sub>\u22482D\u00b7(N<sub>s<\/sub>\/N<sub>p,half<\/sub>)\u00b7V<sub>in<\/sub><\/p>\n<p>\u8fd9\u91cc N<sub>p,half<\/sub> \u662f\u4e2d\u5fc3\u62bd\u5934\u5230\u4e00\u7aef\u7684\u531d\u6570\uff0cD \u662f\u5355\u7ba1\u5360\u6574\u4e2a\u5468\u671f\u7684\u5bfc\u901a\u5360\u7a7a\u6bd4\uff0c\u901a\u5e38 D&lt;0.5\uff0c\u5e76\u4e3a\u6362\u5411\u7559\u51fa\u6b7b\u533a\u3002<\/p>\n<h3>3. \u6700\u5927\u95ee\u9898\uff1a\u504f\u78c1\u4e0e\u7535\u538b\u5c16\u5cf0<\/h3>\n<p>\u4e24\u53ea MOSFET \u7684\u5bfc\u901a\u7535\u963b\u3001\u9a71\u52a8\u5ef6\u8fdf\u3001\u53d8\u538b\u5668\u4e24\u534a\u531d\u6570\u4e0d\u4e00\u81f4\uff0c\u90fd\u4f1a\u8ba9\u4f0f\u79d2\u4e0d\u5e73\u8861\uff0c\u4ea7\u751f\u78c1\u901a\u504f\u79fb\u3002\u6f0f\u611f\u5728\u6362\u5411\u65f6\u4f1a\u4e0e MOSFET \u8f93\u51fa\u7535\u5bb9\u8c10\u632f\uff0c\u4f7f\u5173\u65ad\u7ba1 V<sub>DS<\/sub> \u63a5\u8fd1 2V<sub>in<\/sub> \u751a\u81f3\u66f4\u9ad8\u3002\u8bbe\u8ba1\u4e2d\u5e38\u7528 RC\/RCD \u5438\u6536\u3001\u4e3b\u52a8\u7b9d\u4f4d\u3001\u4e25\u683c\u5339\u914d\u7684\u6805\u6781\u9a71\u52a8\u548c\u7535\u6d41\u6a21\u5f0f\u9650\u6d41\u3002<\/p>\n<h3>4. \u9002\u7528\u573a\u666f<\/h3>\n<p>\u63a8\u633d\u7279\u522b\u9002\u5408 12 V\u300124 V\u300148 V \u7535\u6c60\u8f93\u5165\u7684\u9006\u53d8\u5668\u3001\u8f66\u8f7d\u7535\u6e90\u548c\u901a\u4fe1\u7535\u6e90\u3002\u4f4e\u538b\u4fa7\u7535\u6d41\u5f88\u5927\uff0c\u94dc\u6392\u3001MOSFET \u5e76\u8054\u3001\u53d8\u538b\u5668\u6f0f\u611f\u548c\u6574\u6d41\u635f\u8017\u662f\u91cd\u70b9\u3002\u8f93\u5165\u7535\u538b\u8f83\u9ad8\u65f6\uff0c\u63a8\u633d\u7684\u5f00\u5173\u7ba1\u5e94\u529b\u548c\u504f\u78c1\u98ce\u9669\u4f1a\u524a\u5f31\u5176\u4f18\u52bf\u3002<\/p>\n<h2>\u4e94\u3001\u534a\u6865\uff08Half-Bridge\uff09\uff1a\u6bcd\u7ebf\u5206\u538b\u540e\u7684\u53cc\u5411\u6fc0\u52b1<\/h2>\n<h3>1. \u534a\u6865\u62d3\u6251<\/h3>\n<pre>                 Q1\nDC+ \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524\u251c\u2500\u2500\u2500\u2500\u25cf\u2500\u2500\u2500\u2500Np\u2500\u2500\u2500\u2500\u2524\u251c\u2500\u2500\u2500\u2500\u25cf\u2500\u2500\u2500\u2500\u2524\u251c\u2500\u2500\u2500\u2500 DC\u2212\n             C1   \u4e2d\u70b9          Q2\nDC+ \u2500\u2500C1\u2500\u2500\u25cf\u2500\u2500\u2518                  \u2514\u2500\u2500C2\u2500\u2500DC\u2212\n\u526f\u8fb9\uff1aNp \u611f\u5e94\u7535\u538b \u2192 D1\/D2 \u5168\u6ce2\u6574\u6d41 \u2192 L_o\u3001C_o\u3001\u8d1f\u8f7d<\/pre>\n<p>\u4e24\u4e2a\u4e32\u8054\u7535\u5bb9\u628a\u76f4\u6d41\u6bcd\u7ebf\u5206\u6210\u4e0a\u4e0b\u4e24\u4e2a\u7ea6 V<sub>in<\/sub>\/2 \u7684\u7535\u4f4d\u3002Q1\u3001Q2 \u4e92\u8865\u5bfc\u901a\uff0c\u53d8\u538b\u5668\u539f\u8fb9\u5f97\u5230 +V<sub>in<\/sub>\/2 \u548c \u2212V<sub>in<\/sub>\/2 \u7684\u4ea4\u66ff\u65b9\u6ce2\u3002\u4e0e\u5355\u7ba1\u6b63\u6fc0\u76f8\u6bd4\uff0c\u78c1\u82af\u53cc\u5411\u5229\u7528\uff0c\u5f00\u5173\u7ba1\u7535\u538b\u5e94\u529b\u7ea6\u4e3a\u6bcd\u7ebf\u7535\u538b\u3002<\/p>\n<h3>2. \u8ba1\u7b97\u5173\u7cfb<\/h3>\n<p>\u82e5\u6bcf\u4e2a\u534a\u5468\u7684\u6709\u6548\u5360\u7a7a\u6bd4\u4e3a D\uff0c\u5219\u539f\u8fb9\u65b9\u6ce2\u5e45\u503c\u4e3a V<sub>in<\/sub>\/2\uff0c\u526f\u8fb9\u6574\u6d41\u540e\uff1a<\/p>\n<p style='text-align:center'>V<sub>o<\/sub>\u2248D\u00b7(N<sub>s<\/sub>\/N<sub>p<\/sub>)\u00b7V<sub>in<\/sub><\/p>\n<p>\u534a\u6865\u7684\u53d8\u538b\u5668\u4f0f\u79d2\u4e0e\u5168\u6865\u76f8\u6bd4\u5c11\u4e00\u534a\uff0c\u56e0\u6b64\u540c\u529f\u7387\u540c\u9891\u7387\u4e0b\u9700\u8981\u66f4\u5927\u7684\u531d\u6570\u6216\u66f4\u9ad8\u7535\u6d41\u3002\u8c10\u632f\u534a\u6865\uff08LLC\uff09\u5219\u5229\u7528\u6f0f\u611f\u3001\u52b1\u78c1\u7535\u611f\u548c\u8c10\u632f\u7535\u5bb9\u5b9e\u73b0\u8f6f\u5f00\u5173\uff0c\u516c\u5f0f\u9700\u8981\u4f7f\u7528 FHA\uff08\u57fa\u6ce2\u8fd1\u4f3c\uff09\u6a21\u578b\u3002<\/p>\n<h3>3. \u7535\u5bb9\u5e73\u8861\u4e0e\u9a71\u52a8<\/h3>\n<p>\u4e0a\u4e0b\u7535\u5bb9\u5fc5\u987b\u627f\u53d7\u7eb9\u6ce2\u7535\u6d41\u5e76\u4fdd\u6301\u4e2d\u70b9\u7535\u538b\u5e73\u8861\u3002\u9a71\u52a8\u5668\u8981\u63d0\u4f9b\u9ad8\u4fa7\u9694\u79bb\u6216\u81ea\u4e3e\u4f9b\u7535\u3001\u4e92\u8865\u903b\u8f91\u548c\u8db3\u591f\u6b7b\u533a\uff0c\u9632\u6b62\u4e0a\u4e0b\u7ba1\u76f4\u901a\u3002\u6b7b\u533a\u8fc7\u5927\u589e\u52a0\u4f53\u4e8c\u6781\u7ba1\u5bfc\u901a\u4e0e\u53cd\u5411\u6062\u590d\u635f\u8017\uff0c\u8fc7\u5c0f\u5219\u5b58\u5728\u76f4\u901a\u98ce\u9669\u3002<\/p>\n<h2>\u516d\u3001\u5168\u6865\uff08Full-Bridge\uff09\uff1a\u56db\u5f00\u5173\u83b7\u5f97\u6700\u5927\u53d8\u538b\u5668\u5229\u7528\u7387<\/h2>\n<h3>1. \u62d3\u6251<\/h3>\n<pre>             Q1             Q3\nDC+ \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524\u251c\u2500\u2500\u25cf\u2500\u2500\u2500\u2500Np\u2500\u2500\u2500\u2500\u25cf\u2500\u2500\u2524\u251c\u2500\u2500\u2500\u2500 DC+\n                    \u2502\nDC\u2212 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524\u251c\u2500\u2500\u25cf\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u25cf\u2500\u2500\u2524\u251c\u2500\u2500\u2500\u2500 DC\u2212\n             Q2             Q4\n\u9a71\u52a8\u987a\u5e8f\uff1aQ1+Q4 \u5bfc\u901a \u2192 \u539f\u8fb9\u6b63\u5411\uff1bQ2+Q3 \u5bfc\u901a \u2192 \u539f\u8fb9\u53cd\u5411\u3002<\/pre>\n<p>\u5168\u6865\u6bcf\u6b21\u7531\u5bf9\u89d2\u7ebf\u4e0a\u7684\u4e24\u53ea\u5f00\u5173\u540c\u65f6\u5bfc\u901a\uff0c\u539f\u8fb9\u65bd\u52a0 \u00b1V<sub>in<\/sub>\u3002\u526f\u8fb9\u91c7\u7528\u4e2d\u5fc3\u62bd\u5934\u6216\u5168\u6865\u6574\u6d41\u3002\u6865\u81c2\u5fc5\u987b\u8bbe\u7f6e\u6b7b\u533a\uff0c\u63a7\u5236\u5668\u8fd8\u8981\u9632\u6b62\u78c1\u901a\u4e0d\u5e73\u8861\u548c\u5360\u7a7a\u6bd4\u4e0d\u5bf9\u79f0\u3002<\/p>\n<h3>2. \u7535\u538b\u589e\u76ca<\/h3>\n<p>\u7406\u60f3\u5168\u6865 PWM \u4e0b\uff1a<\/p>\n<p style='text-align:center'>V<sub>o<\/sub>\u22482D\u00b7(N<sub>s<\/sub>\/N<sub>p<\/sub>)\u00b7V<sub>in<\/sub><\/p>\n<p>\u82e5 D \u8868\u793a\u6bcf\u4e2a\u6b63\u3001\u8d1f\u8109\u51b2\u5360\u534a\u5468\u671f\u7684\u6bd4\u4f8b\uff1b\u91c7\u7528\u79fb\u76f8\u5168\u6865\u65f6\uff0c\u5b9e\u9645\u6709\u6548\u5360\u7a7a\u6bd4\u8fd8\u8981\u6263\u9664\u4e24\u6865\u81c2\u79fb\u76f8\u9020\u6210\u7684\u81ea\u7531\u7eed\u6d41\u533a\u95f4\u3002\u53d8\u538b\u5668\u539f\u8fb9\u7535\u6d41\u5305\u542b\u8d1f\u8f7d\u53cd\u5c04\u7535\u6d41\u3001\u52b1\u78c1\u7535\u6d41\u548c\u6362\u5411\u73af\u6d41\u3002<\/p>\n<h3>3. \u8f6f\u5f00\u5173\u4e0e\u79fb\u76f8\u5168\u6865<\/h3>\n<p>\u79fb\u76f8\u5168\u6865 PSFB \u901a\u8fc7\u8c03\u8282\u4e24\u6865\u81c2\u76f8\u4f4d\u5dee\u6539\u53d8\u6709\u6548\u8109\u5bbd\u3002\u6f0f\u611f\u548c MOSFET \u8f93\u51fa\u7535\u5bb9\u53c2\u4e0e\u6362\u6d41\uff0c\u4f7f\u5f00\u5173\u5728\u96f6\u7535\u538b\u9644\u8fd1\u5bfc\u901a\uff0c\u4ece\u800c\u964d\u4f4e\u9ad8\u538b\u5927\u529f\u7387\u4e0b\u7684\u5f00\u5173\u635f\u8017\u3002\u8f7b\u8f7d\u65f6 ZVS \u8303\u56f4\u7f29\u5c0f\uff0c\u5bb9\u6613\u51fa\u73b0\u4e8c\u6781\u7ba1\u53cd\u5411\u6062\u590d\u548c\u73af\u6d41\u5360\u6bd4\u589e\u52a0\uff0c\u9700\u8981\u8f7b\u8f7d\u7b56\u7565\u6216\u540c\u6b65\u6574\u6d41\u3002<\/p>\n<h2>\u4e03\u3001\u4e94\u79cd\u62d3\u6251\u7684\u7cfb\u7edf\u5bf9\u6bd4<\/h2>\n<table>\n<tr>\n<th>\u6307\u6807<\/th>\n<th>\u53cd\u6fc0<\/th>\n<th>\u6b63\u6fc0<\/th>\n<th>\u63a8\u633d<\/th>\n<th>\u534a\u6865<\/th>\n<th>\u5168\u6865<\/th>\n<\/tr>\n<tr>\n<td>\u80fd\u91cf\u65b9\u5f0f<\/td>\n<td>\u50a8\u80fd\u540e\u91ca\u653e<\/td>\n<td>\u5bfc\u901a\u5373\u4f20\u80fd<\/td>\n<td>\u4ea4\u66ff\u4f20\u80fd<\/td>\n<td>\u53cc\u5411\u4f20\u80fd<\/td>\n<td>\u53cc\u5411\u5168\u5e45\u4f20\u80fd<\/td>\n<\/tr>\n<tr>\n<td>\u78c1\u82af\u590d\u4f4d<\/td>\n<td>\u526f\u8fb9\u653e\u80fd<\/td>\n<td>\u590d\u4f4d\u7ed5\u7ec4\/\u7b9d\u4f4d<\/td>\n<td>\u53e6\u4e00\u534a\u539f\u8fb9<\/td>\n<td>\u53cd\u5411\u534a\u5468<\/td>\n<td>\u53cd\u5411\u534a\u5468<\/td>\n<\/tr>\n<tr>\n<td>\u5f00\u5173\u7ba1\u5e94\u529b<\/td>\n<td>\u9ad8\u4e8e Vin\uff0c\u542b\u53cd\u5c04\u7535\u538b<\/td>\n<td>Vin \u52a0\u590d\u4f4d\u7535\u538b<\/td>\n<td>\u7ea6 2Vin \u52a0\u5c16\u5cf0<\/td>\n<td>\u7ea6 Vin<\/td>\n<td>\u7ea6 Vin<\/td>\n<\/tr>\n<tr>\n<td>\u8f93\u51fa\u7eb9\u6ce2<\/td>\n<td>\u8f83\u5927<\/td>\n<td>\u8f83\u5c0f<\/td>\n<td>\u4e2d\u7b49<\/td>\n<td>\u5c0f<\/td>\n<td>\u5c0f<\/td>\n<\/tr>\n<tr>\n<td>\u63a7\u5236\u590d\u6742\u5ea6<\/td>\n<td>\u4f4e<\/td>\n<td>\u4e2d<\/td>\n<td>\u4e2d\u9ad8<\/td>\n<td>\u4e2d\u9ad8<\/td>\n<td>\u9ad8<\/td>\n<\/tr>\n<tr>\n<td>\u63a8\u8350\u529f\u7387<\/td>\n<td>\u4f4e\u529f\u7387<\/td>\n<td>\u4e2d\u529f\u7387<\/td>\n<td>\u4f4e\u538b\u4e2d\u529f\u7387<\/td>\n<td>\u4e2d\u9ad8\u529f\u7387<\/td>\n<td>\u9ad8\u529f\u7387<\/td>\n<\/tr>\n<\/table>\n<h2>\u516b\u3001\u7edf\u4e00\u7684\u53d8\u538b\u5668\u4e0e\u78c1\u82af\u8ba1\u7b97<\/h2>\n<h3>1. \u531d\u6570\u8ba1\u7b97<\/h3>\n<p>\u7531\u6cd5\u62c9\u7b2c\u5b9a\u5f8b\uff0c\u65b9\u6ce2\u6fc0\u52b1\u4e0b\u539f\u8fb9\u531d\u6570\uff1a<\/p>\n<p style='text-align:center'>N<sub>p<\/sub> \u2265 V<sub>p,pk<\/sub>\u00b7t<sub>on<\/sub> \/(\u0394B\u00b7A<sub>e<\/sub>) = V<sub>p,pk<\/sub>\u00b7D \/(\u0394B\u00b7A<sub>e<\/sub>\u00b7f<sub>s<\/sub>)<\/p>\n<p>\u5176\u4e2d A<sub>e<\/sub> \u662f\u6709\u6548\u622a\u9762\u79ef\uff0c\u0394B \u662f\u5141\u8bb8\u78c1\u901a\u6446\u5e45\u3002\u94c1\u6c27\u4f53\u5728 100 kHz \u5de6\u53f3\u5e38\u628a \u0394B \u8bbe\u8ba1\u5728 0.15\uff5e0.25 T \u8303\u56f4\uff0c\u5177\u4f53\u53d6\u503c\u5fc5\u987b\u67e5\u78c1\u82af\u6750\u6599\u66f2\u7ebf\u3002<\/p>\n<h3>2. \u94dc\u7ebf\u4e0e\u96c6\u80a4\u6548\u5e94<\/h3>\n<p>\u94dc\u7684\u96c6\u80a4\u6df1\u5ea6\u7ea6\u4e3a \u03b4\u224866\/\u221af(mm)\uff0cf \u4ee5 Hz \u8ba1\u3002100 kHz \u65f6 \u03b4 \u7ea6 0.2 mm\uff0c\u56e0\u6b64\u9ad8\u9891\u7ed5\u7ec4\u5b9c\u7528\u591a\u80a1\u7ede\u7ebf\u3001\u5229\u5179\u7ebf\u6216\u94dc\u7b94\u3002\u7a97\u53e3\u5229\u7528\u7387 k<sub>u<\/sub> \u901a\u5e38\u53ea\u53d6 0.2\uff5e0.4\uff0c\u5fc5\u987b\u7ed9\u7edd\u7f18\u3001\u5c42\u95f4\u80f6\u5e26\u548c\u722c\u7535\u8ddd\u79bb\u7559\u7a7a\u95f4\u3002<\/p>\n<h3>3. \u635f\u8017\u4f30\u7b97<\/h3>\n<p>\u603b\u635f\u8017\u53ef\u4ee5\u62c6\u4e3a MOSFET \u5bfc\u901a\u635f\u8017 P<sub>cond<\/sub>=I<sub>rms<\/sub><sup>2<\/sup>R<sub>DS(on)<\/sub>\u3001\u5f00\u5173\u635f\u8017 P<sub>sw<\/sub>\u2248\u00bdV<sub>DS<\/sub>I<sub>D<\/sub>(t<sub>r<\/sub>+t<sub>f<\/sub>)f<sub>s<\/sub>\u3001\u78c1\u82af\u635f\u8017\u3001\u94dc\u635f\u3001\u4e8c\u6781\u7ba1\u5bfc\u901a\u4e0e\u53cd\u5411\u6062\u590d\u635f\u8017\u3001\u9a71\u52a8\u548c\u63a7\u5236\u635f\u8017\u3002\u6548\u7387 \u03b7=P<sub>o<\/sub>\/(P<sub>o<\/sub>+\u03a3P<sub>loss<\/sub>)\u3002<\/p>\n<h2>\u4e5d\u3001\u5b8c\u6574\u8bbe\u8ba1\u793a\u4f8b\uff1a48 V \u8f93\u5165\u300112 V\/300 W \u8f93\u51fa<\/h2>\n<p>\u8bbe V<sub>in<\/sub>=36\uff5e60 V\uff0cV<sub>o<\/sub>=12 V\uff0cP<sub>o<\/sub>=300 W\uff0c\u03b7=0.92\uff0cf<sub>s<\/sub>=100 kHz\u3002\u82e5\u9009\u5168\u6865\uff0c\u5047\u8bbe\u6700\u5927\u6709\u6548\u5360\u7a7a\u6bd4 D=0.8\uff0c\u6574\u6d41\u538b\u964d\u6298\u7b97\u540e\u526f\u8fb9\u6240\u9700\u65b9\u6ce2\u7535\u538b\u7ea6 15 V\uff0c\u5219\u531d\u6bd4\u53ef\u6309 n\u2248D\u00b7V<sub>in,min<\/sub>\/15\u22481.92\uff0c\u53d6 N<sub>p<\/sub>:N<sub>s<\/sub>=2:1\u3002<\/p>\n<p>\u8f93\u51fa\u5e73\u5747\u7535\u6d41 I<sub>o<\/sub>=25 A\u3002\u82e5\u8bbe\u8ba1\u7535\u611f\u7eb9\u6ce2 20%\uff0c\u0394I<sub>L<\/sub>=5 A\uff0c\u526f\u8fb9\u5bfc\u901a\u7535\u538b\u7ea6 18 V\uff0c\u5219 L<sub>o<\/sub>\u2248(18\u221212)\u00d70.8\/(5\u00d7100kHz)=9.6 \u03bcH\uff0c\u53ef\u53d6 10 \u03bcH\uff0c\u5e76\u6309\u9971\u548c\u7535\u6d41\u5927\u4e8e 35 A\u3001RMS \u7535\u6d41\u5927\u4e8e 25 A \u9009\u578b\u3002\u8f93\u5165\u5e73\u5747\u7535\u6d41\u7ea6 P<sub>o<\/sub>\/(\u03b7V<sub>in,min<\/sub>)=9.1 A\uff0c\u8003\u8651\u7eb9\u6ce2\u548c\u73af\u6d41\u540e MOSFET RMS \u7535\u6d41\u9700\u6309\u5b9e\u6d4b\u6ce2\u5f62\u6821\u6838\u3002<\/p>\n<p>\u5982\u679c\u6539\u7528\u53cd\u6fc0\uff0c300 W \u65f6\u539f\u8fb9\u5cf0\u503c\u7535\u6d41\u4f1a\u975e\u5e38\u9ad8\uff0c\u78c1\u82af\u6c14\u9699\u3001\u6f0f\u611f\u7b9d\u4f4d\u3001MOSFET \u548c\u8f93\u51fa\u6574\u6d41\u5668\u90fd\u4f1a\u53d8\u5f97\u56f0\u96be\uff0c\u56e0\u6b64\u901a\u5e38\u6539\u7528\u6b63\u6fc0\u3001\u534a\u6865\u6216\u5168\u6865\u3002\u82e5\u8f93\u5165\u6539\u4e3a 12 V \u7535\u6c60\uff0c\u5219\u63a8\u633d\u53ef\u80fd\u66f4\u5408\u9002\uff0c\u56e0\u4e3a\u5b83\u5145\u5206\u5229\u7528\u4f4e\u538b\u4fa7\u7535\u6d41\u548c\u53d8\u538b\u5668\u94dc\u7a97\u3002<\/p>\n<h2>\u5341\u3001\u5e03\u5c40\u3001EMI \u4e0e\u53ef\u9760\u6027\u8981\u70b9<\/h2>\n<ol>\n<li>\u9ad8 di\/dt \u56de\u8def\u9762\u79ef\u5fc5\u987b\u6700\u5c0f\uff1aMOSFET\u3001\u53d8\u538b\u5668\u539f\u8fb9\u3001\u7b9d\u4f4d\u7535\u5bb9\u6784\u6210\u7684\u56de\u8def\u8981\u7d27\u51d1\u3002<\/li>\n<li>\u529f\u7387\u5730\u3001\u9a71\u52a8\u5730\u3001\u91c7\u6837\u5730\u5206\u533a\uff0c\u7535\u6d41\u91c7\u6837\u8d70 Kelvin \u7ebf\uff0c\u907f\u514d\u5927\u7535\u6d41\u94dc\u7b94\u538b\u5dee\u8fdb\u5165\u63a7\u5236\u5668\u3002<\/li>\n<li>\u53d8\u538b\u5668\u5c42\u95f4\u5c4f\u853d\u53ef\u964d\u4f4e\u5171\u6a21\u566a\u58f0\uff0c\u4f46\u5c4f\u853d\u5c42\u5fc5\u987b\u5355\u70b9\u63a5\u5730\u5e76\u6ee1\u8db3\u5b89\u89c4\u7edd\u7f18\u3002<\/li>\n<li>\u4e8c\u6781\u7ba1\u53cd\u5411\u6062\u590d\u4f1a\u5728\u6865\u5f0f\u62d3\u6251\u4e2d\u4ea7\u751f\u5c16\u5cf0\uff1b\u9ad8\u9891\u4f4e\u538b\u8f93\u51fa\u5b9c\u4f7f\u7528\u540c\u6b65\u6574\u6d41\u3002<\/li>\n<li>\u6240\u6709\u7535\u538b\u3001\u7535\u6d41\u3001\u6e29\u5ea6\u989d\u5b9a\u503c\u81f3\u5c11\u7559 20%\uff5e30% \u88d5\u91cf\uff0c\u6d6a\u6d8c\u3001\u77ed\u8def\u3001\u542f\u52a8\u548c\u5f02\u5e38\u5360\u7a7a\u6bd4\u5fc5\u987b\u5355\u72ec\u6d4b\u8bd5\u3002<\/li>\n<li>\u5b89\u89c4\u9694\u79bb\u8ddd\u79bb\u3001\u4fdd\u9669\u4e1d\u3001\u653e\u7535\u7535\u963b\u3001Y \u7535\u5bb9\u6cc4\u6f0f\u7535\u6d41\u548c\u53d8\u538b\u5668\u8010\u538b\u6d4b\u8bd5\u4e0d\u53ef\u7701\u7565\u3002<\/li>\n<\/ol>\n<h2>\u5341\u4e00\u3001\u5982\u4f55\u5feb\u901f\u9009\u578b<\/h2>\n<p>\u8f93\u51fa\u4f4e\u4e8e 100 W\u3001\u9700\u8981\u591a\u8def\u8f93\u51fa\u4e14\u6210\u672c\u654f\u611f\uff1a\u4f18\u5148\u53cd\u6fc0\uff1b100\uff5e500 W\u3001\u5e0c\u671b\u7eb9\u6ce2\u548c\u6548\u7387\u66f4\u597d\uff1a\u5355\u7ba1\u6b63\u6fc0\u6216\u53cc\u7ba1\u6b63\u6fc0\uff1b\u4f4e\u538b\u7535\u6c60\u8f93\u5165\u3001\u529f\u7387\u51e0\u767e\u74e6\uff1a\u63a8\u633d\uff1b\u9ad8\u538b\u76f4\u6d41\u6bcd\u7ebf\u3001\u51e0\u767e\u74e6\u5230\u6570\u5343\u74e6\uff1a\u534a\u6865\uff1b\u9ad8\u529f\u7387\u3001\u9ad8\u529f\u7387\u5bc6\u5ea6\u3001\u9700\u8981\u8f6f\u5f00\u5173\uff1a\u5168\u6865\u6216\u79fb\u76f8\u5168\u6865\u3002\u82e5\u76ee\u6807\u662f\u9ad8\u6548\u7387\u8f7b\u8f7d\uff0cLLC \u534a\u6865\u503c\u5f97\u8003\u8651\uff1b\u82e5\u76ee\u6807\u662f\u5bbd\u8f93\u5165\u3001\u4f4e\u5f85\u673a\u548c\u4f4e\u6210\u672c\uff0c\u53cd\u6fc0\u4ecd\u7136\u6700\u6709\u7ade\u4e89\u529b\u3002<\/p>\n<h2>\u5341\u4e8c\u3001\u7ed3\u8bed<\/h2>\n<p>\u4e94\u79cd\u62d3\u6251\u6ca1\u6709\u7edd\u5bf9\u7684\u201c\u6700\u597d\u201d\u3002\u53cd\u6fc0\u628a\u5668\u4ef6\u6570\u91cf\u548c\u6210\u672c\u964d\u5230\u6700\u4f4e\uff0c\u4ee3\u4ef7\u662f\u5cf0\u503c\u7535\u6d41\u548c EMI\uff1b\u6b63\u6fc0\u8ba9\u80fd\u91cf\u5728\u5bfc\u901a\u671f\u95f4\u76f4\u63a5\u8fdb\u5165\u8f93\u51fa\uff0c\u4ee3\u4ef7\u662f\u590d\u4f4d\u7f51\u7edc\uff1b\u63a8\u633d\u9002\u5408\u4f4e\u538b\u5927\u7535\u6d41\uff0c\u5374\u5bf9\u504f\u78c1\u548c\u5c16\u5cf0\u654f\u611f\uff1b\u534a\u6865\u7528\u8f83\u4f4e\u5668\u4ef6\u5e94\u529b\u6362\u53d6\u4e2d\u7b49\u529f\u7387\u80fd\u529b\uff1b\u5168\u6865\u5728\u9ad8\u529f\u7387\u573a\u666f\u4e2d\u63d0\u4f9b\u6700\u9ad8\u7684\u53d8\u538b\u5668\u5229\u7528\u7387\u548c\u8f6f\u5f00\u5173\u7a7a\u95f4\u3002\u771f\u6b63\u53ef\u9760\u7684\u8bbe\u8ba1\u5fc5\u987b\u628a\u62d3\u6251\u3001\u78c1\u82af\u3001\u5f00\u5173\u5668\u4ef6\u3001\u6574\u6d41\u3001\u63a7\u5236\u3001\u6563\u70ed\u3001\u5e03\u5c40\u548c\u5b89\u89c4\u4f5c\u4e3a\u4e00\u4e2a\u6574\u4f53\u4f18\u5316\u3002<\/p>\n<p><strong>\u5173\u952e\u8bcd\uff1a<\/strong>\u6b63\u6fc0\u3001\u53cd\u6fc0\u3001\u63a8\u633d\u3001\u534a\u6865\u3001\u5168\u6865\u3001\u5f00\u5173\u7535\u6e90\u3001\u53d8\u538b\u5668\u3001\u78c1\u82af\u590d\u4f4d\u3001PWM\u3001\u79fb\u76f8\u5168\u6865\u3001LLC\u3001\u540c\u6b65\u6574\u6d41\u3001\u7535\u6e90\u8bbe\u8ba1\u3002<\/p>\n<figure style=\"text-align:center\"><svg viewBox=\"0 0 900 260\" width=\"100%\" role=\"img\" aria-label=\"\u4e94\u79cd\u9694\u79bb\u578b\u5f00\u5173\u7535\u6e90\u62d3\u6251\u80fd\u91cf\u8def\u5f84\u5bf9\u6bd4\"><rect width=\"900\" height=\"260\" fill=\"#f8fafc\"\/><text x=\"30\" y=\"35\" font-size=\"24\" font-weight=\"bold\">\u4e94\u79cd\u62d3\u6251\u7684\u80fd\u91cf\u8def\u5f84\u5bf9\u6bd4<\/text><g font-size=\"18\" fill=\"#111827\"><text x=\"35\" y=\"90\">\u53cd\u6fc0<\/text><path d=\"M110 84h120\" stroke=\"#2563eb\" stroke-width=\"6\"\/><text x=\"125\" y=\"120\">\u50a8\u80fd \u2192 \u653e\u80fd<\/text><text x=\"285\" y=\"90\">\u6b63\u6fc0<\/text><path d=\"M360 84h120\" stroke=\"#16a34a\" stroke-width=\"6\"\/><text x=\"365\" y=\"120\">\u5bfc\u901a\u76f4\u63a5\u4f20\u80fd<\/text><text x=\"540\" y=\"90\">\u63a8\u633d<\/text><path d=\"M610 84h100\" stroke=\"#ea580c\" stroke-width=\"6\"\/><text x=\"595\" y=\"120\">\u4ea4\u66ff\u52b1\u78c1<\/text><text x=\"35\" y=\"190\">\u534a\u6865<\/text><path d=\"M110 184h120\" stroke=\"#7c3aed\" stroke-width=\"6\"\/><text x=\"120\" y=\"220\">\u00b1Vin\/2<\/text><text x=\"285\" y=\"190\">\u5168\u6865<\/text><path d=\"M360 184h120\" stroke=\"#db2777\" stroke-width=\"6\"\/><text x=\"375\" y=\"220\">\u00b1Vin<\/text><text x=\"540\" y=\"190\">\u5171\u540c\u76ee\u6807<\/text><path d=\"M650 184h180\" stroke=\"#111827\" stroke-width=\"6\"\/><text x=\"665\" y=\"220\">\u6574\u6d41 + \u6ee4\u6ce2 + \u7a33\u538b<\/text><\/g><\/svg><figcaption>\u56fe\uff1a\u4e94\u7c7b\u62d3\u6251\u7684\u80fd\u91cf\u4f20\u9012\u65b9\u5f0f\u4e0e\u539f\u8fb9\u6fc0\u52b1\u5e45\u503c<\/figcaption><\/figure>\n<h2>\u5341\u4e09\u3001\u4ece\u6ce2\u5f62\u89d2\u5ea6\u7406\u89e3\u4e94\u79cd\u62d3\u6251<\/h2>\n<p>\u4ec5\u770b\u7535\u8def\u56fe\u5bb9\u6613\u628a\u62d3\u6251\u7406\u89e3\u6210\u201c\u5f00\u5173\u6570\u91cf\u4e0d\u540c\u201d\u3002\u771f\u6b63\u51b3\u5b9a\u6027\u80fd\u7684\u662f\u5173\u952e\u8282\u70b9\u7684\u6ce2\u5f62\u3002\u5efa\u8bae\u5728\u539f\u578b\u673a\u4e0a\u540c\u65f6\u89c2\u5bdf MOSFET \u7684 VDS\u3001\u6805\u6781 VGS\u3001\u53d8\u538b\u5668\u539f\u8fb9\u7535\u6d41\u3001\u526f\u8fb9\u6574\u6d41\u7535\u6d41\u548c\u8f93\u51fa\u7535\u611f\u7535\u6d41\u3002\u6ce2\u5f62\u6bd4\u9759\u6001\u4e07\u7528\u8868\u8bfb\u6570\u66f4\u80fd\u66b4\u9732\u78c1\u82af\u504f\u78c1\u3001\u6b7b\u533a\u4e0d\u8db3\u3001\u53cd\u5411\u6062\u590d\u548c\u7b9d\u4f4d\u5931\u6548\u3002<\/p>\n<h3>1. \u53cd\u6fc0\u6ce2\u5f62<\/h3>\n<p>\u53cd\u6fc0\u5bfc\u901a\u65f6\u539f\u8fb9\u7535\u6d41\u901a\u5e38\u5448\u4e0a\u5347\u659c\u5761\uff0c\u5173\u65ad\u77ac\u95f4 VDS \u5148\u5feb\u901f\u4e0a\u5347\uff0c\u518d\u53e0\u52a0\u6f0f\u611f\u5c16\u5cf0\u548c\u632f\u94c3\uff1b\u526f\u8fb9\u7535\u6d41\u662f\u4e00\u4e2a\u4e2a\u4e09\u89d2\u5f62\u8109\u51b2\u3002CCM \u4e0b\u6bcf\u5468\u671f\u5f00\u59cb\u65f6\u78c1\u5316\u7535\u6d41\u4e0d\u4e3a\u96f6\uff0cDCM \u4e0b\u6bcf\u5468\u671f\u4f1a\u56de\u5230\u96f6\u3002\u8f7b\u8f7d\u4ece CCM \u8fc7\u6e21\u5230 DCM \u65f6\uff0c\u73af\u8def\u589e\u76ca\u3001\u6b21\u8c10\u6ce2\u548c\u566a\u58f0\u7279\u6027\u90fd\u4f1a\u53d8\u5316\uff0c\u63a7\u5236\u5668\u9700\u8981\u6839\u636e\u6a21\u5f0f\u5207\u6362\u8fdb\u884c\u8865\u507f\u3002<\/p>\n<h3>2. \u6b63\u6fc0\u6ce2\u5f62<\/h3>\n<p>\u6b63\u6fc0\u539f\u8fb9\u7535\u6d41\u7531\u8d1f\u8f7d\u53cd\u5c04\u7535\u6d41\u4e0e\u78c1\u5316\u7535\u6d41\u53e0\u52a0\u3002Q \u5bfc\u901a\u65f6\u526f\u8fb9\u6574\u6d41\u7535\u6d41\u51fa\u73b0\uff0cQ \u5173\u65ad\u540e\u7535\u6d41\u8fc5\u901f\u8f6c\u79fb\u5230\u7eed\u6d41\u4e8c\u6781\u7ba1\u3002\u590d\u4f4d\u7ed5\u7ec4\u4e24\u7aef\u4f1a\u51fa\u73b0\u53cd\u5411\u7535\u538b\uff0c\u590d\u4f4d\u65f6\u95f4\u5fc5\u987b\u5c0f\u4e8e\u5269\u4f59\u5173\u65ad\u65f6\u95f4\uff0c\u5426\u5219\u4e0b\u4e00\u5468\u671f\u521d\u59cb\u78c1\u901a\u4e0d\u4e3a\u96f6\u3002\u53cc\u7ba1\u6b63\u6fc0\u628a\u5f00\u5173\u7ba1\u7535\u538b\u7b9d\u5728\u8f93\u5165\u7535\u538b\u9644\u8fd1\uff0c\u4ee3\u4ef7\u662f\u4e24\u4e2a\u5f00\u5173\u548c\u4e24\u4e2a\u7b9d\u4f4d\u4e8c\u6781\u7ba1\u3002<\/p>\n<h3>3. \u63a8\u633d\u6ce2\u5f62<\/h3>\n<p>\u7406\u60f3\u60c5\u51b5\u4e0b Q1\u3001Q2 \u7684\u6f0f\u6781\u7535\u538b\u4ea4\u66ff\u5728\u63a5\u8fd1 0 V \u548c 2Vin \u4e4b\u95f4\u8df3\u53d8\uff0c\u4e24\u4e2a\u534a\u5468\u7684\u7535\u6d41\u955c\u50cf\u5bf9\u79f0\u3002\u5b9e\u9645\u6d4b\u91cf\u4e2d\u82e5\u53d1\u73b0\u4e00\u53ea\u7ba1\u7684\u5bfc\u901a\u7535\u6d41\u660e\u663e\u66f4\u5927\uff0c\u6216\u8005\u6f0f\u6781\u5e73\u53f0\u7535\u538b\u4e0d\u76f8\u7b49\uff0c\u5e94\u4f18\u5148\u68c0\u67e5\u9a71\u52a8\u65f6\u5e8f\u3001\u4e2d\u5fc3\u62bd\u5934\u7ed5\u7ec4\u531d\u6570\u548c\u78c1\u82af\u6c14\u9699\uff0c\u800c\u4e0d\u662f\u7acb\u5373\u66f4\u6362\u66f4\u5927\u7535\u6d41\u7684 MOSFET\u3002<\/p>\n<h3>4. \u534a\u6865\u6ce2\u5f62<\/h3>\n<p>\u534a\u6865\u4e2d\u70b9\u7535\u538b\u5728 +Vin\/2 \u548c \u2212Vin\/2 \u4e4b\u95f4\u6446\u52a8\u3002\u4e0a\u4e0b\u7535\u5bb9\u7684\u7535\u538b\u7eb9\u6ce2\u4e0d\u80fd\u53ea\u770b\u5e73\u5747\u503c\uff0c\u8fd8\u8981\u770b\u4f4e\u9891\u4e0d\u5e73\u8861\u548c\u9ad8\u9891 ESR\u3002\u542f\u52a8\u9636\u6bb5\u82e5\u4e24\u53ea\u7535\u5bb9\u5145\u7535\u4e0d\u4e00\u81f4\uff0c\u4e2d\u70b9\u4f1a\u504f\u79fb\uff0c\u5bfc\u81f4\u53d8\u538b\u5668\u4f0f\u79d2\u4e0d\u5e73\u8861\u3002\u589e\u52a0\u5747\u538b\u7535\u963b\u3001\u9009\u7528\u5bf9\u79f0\u7535\u5bb9\u3001\u6539\u5584\u9a71\u52a8\u6b7b\u533a\u548c\u91c7\u7528\u7535\u6d41\u5e73\u8861\u63a7\u5236\u90fd\u53ef\u4ee5\u964d\u4f4e\u98ce\u9669\u3002<\/p>\n<h3>5. \u5168\u6865\u6ce2\u5f62<\/h3>\n<p>\u5168\u6865\u539f\u8fb9\u65b9\u6ce2\u5e45\u503c\u6700\u5927\uff0c\u53d8\u538b\u5668\u5229\u7528\u7387\u6700\u9ad8\u3002\u786c\u5f00\u5173\u5168\u6865\u5728\u6362\u5411\u65f6\u4f1a\u4ea7\u751f\u8f83\u5927\u7684\u73af\u6d41\u548c\u5c16\u5cf0\uff0c\u79fb\u76f8\u5168\u6865\u5219\u901a\u8fc7\u6865\u81c2\u76f8\u4f4d\u5dee\u5b9e\u73b0\u8f6f\u5f00\u5173\u3002\u89c2\u5bdf ZVS \u662f\u5426\u6210\u529f\u65f6\uff0c\u5e94\u628a VDS \u4e0e VGS \u653e\u5728\u540c\u4e00\u65f6\u95f4\u8f74\u4e0a\uff1a\u5982\u679c VDS \u5c1a\u672a\u964d\u5230\u63a5\u8fd1\u96f6\uff0c\u6805\u6781\u5df2\u7ecf\u4e0a\u5347\uff0c\u8bf4\u660e\u8f6f\u5f00\u5173\u5931\u8d25\uff0c\u5f00\u5173\u635f\u8017\u4f1a\u5feb\u901f\u589e\u52a0\u3002<\/p>\n<h2>\u5341\u56db\u3001\u53cd\u6fc0\u7684\u6df1\u5165\u8bbe\u8ba1\uff1a\u6c14\u9699\u3001RCD \u4e0e\u73af\u8def<\/h2>\n<p>\u53cd\u6fc0\u78c1\u82af\u901a\u5e38\u9700\u8981\u6c14\u9699\uff0c\u6c14\u9699\u628a\u4e3b\u8981\u50a8\u80fd\u8f6c\u79fb\u5230\u7a7a\u6c14\u9699\u4e2d\uff0c\u964d\u4f4e\u6709\u6548\u78c1\u5bfc\u7387\u5e76\u63d0\u9ad8\u53ef\u50a8\u5b58\u80fd\u91cf\u3002\u8fd1\u4f3c\u5173\u7cfb\u4e3a E=\u00bdL<sub>m<\/sub>I<sub>pk<\/sub><sup>2<\/sup>\uff0c\u800c\u6c14\u9699\u957f\u5ea6\u589e\u5927\u65f6 Lm \u51cf\u5c0f\u3001\u5141\u8bb8\u5cf0\u503c\u7535\u6d41\u589e\u5927\u3002\u8bbe\u8ba1\u4e0d\u80fd\u53ea\u6309\u7535\u611f\u91cf\u9009\u78c1\u82af\uff0c\u8fd8\u8981\u68c0\u67e5\u6c14\u9699\u8fb9\u7f18\u78c1\u901a\u5bfc\u81f4\u7684\u90bb\u8fd1\u635f\u8017\u548c\u7ed5\u7ec4\u6e29\u5347\u3002<\/p>\n<p>RCD \u7b9d\u4f4d\u7684\u7535\u963b\u8d1f\u8d23\u8017\u6563\u6f0f\u611f\u80fd\u91cf\uff0c\u7535\u5bb9\u51b3\u5b9a\u5c16\u5cf0\u7535\u538b\uff0c\u4e8c\u6781\u7ba1\u8d1f\u8d23\u5355\u5411\u5145\u7535\u3002\u521d\u59cb\u4f30\u7b97\u53ef\u6309\u6bcf\u5468\u671f\u6f0f\u611f\u80fd\u91cf P<sub>lk<\/sub>=\u00bdL<sub>lk<\/sub>I<sub>pk<\/sub><sup>2<\/sup>f<sub>s<\/sub>\uff0c\u8ba9\u7b9d\u4f4d\u7535\u963b\u529f\u7387\u989d\u5b9a\u503c\u81f3\u5c11\u4e3a\u4f30\u7b97\u503c\u7684\u4e24\u500d\uff0c\u518d\u901a\u8fc7\u793a\u6ce2\u5668\u8c03\u8282\u963b\u503c\u4e0e\u7535\u5bb9\uff0c\u4f7f VDS \u5c16\u5cf0\u4f4e\u4e8e\u989d\u5b9a\u503c\u7684 80%\u3002\u6709\u6e90\u7b9d\u4f4d\u53ef\u4ee5\u56de\u6536\u90e8\u5206\u6f0f\u611f\u80fd\u91cf\u5e76\u6269\u5927\u5360\u7a7a\u6bd4\uff0c\u4f46\u9700\u8981\u989d\u5916\u5f00\u5173\u3001\u9a71\u52a8\u4e0e\u63a7\u5236\u7b56\u7565\u3002<\/p>\n<p>\u53cd\u6fc0\u73af\u8def\u8865\u507f\u5e38\u89c1\u7535\u6d41\u6a21\u5f0f\u63a7\u5236\u3002\u7535\u6d41\u5185\u73af\u628a\u529f\u7387\u7ea7\u8fd1\u4f3c\u6210\u7535\u538b\u6e90\uff0c\u5916\u73af\u8c03\u8282\u5cf0\u503c\u7535\u6d41\u3002\u6700\u5927\u5360\u7a7a\u6bd4\u8d85\u8fc7 50% \u65f6\uff0c\u56fa\u5b9a\u9891\u7387\u5cf0\u503c\u7535\u6d41\u6a21\u5f0f\u53ef\u80fd\u51fa\u73b0\u6b21\u8c10\u6ce2\uff0c\u9700\u8981\u659c\u5761\u8865\u507f\u3002\u8865\u507f\u659c\u5761\u81f3\u5c11\u5e94\u4e0e\u7535\u611f\u4e0b\u964d\u659c\u7387\u5339\u914d\uff0c\u5b9e\u9645\u5de5\u7a0b\u901a\u5e38\u4fdd\u7559 1.0\uff5e1.5 \u500d\u88d5\u91cf\u3002<\/p>\n<h2>\u5341\u4e94\u3001\u6b63\u6fc0\u7684\u6df1\u5165\u8bbe\u8ba1\uff1a\u590d\u4f4d\u65b9\u6848\u6bd4\u8f83<\/h2>\n<table>\n<tr>\n<th>\u590d\u4f4d\u65b9\u5f0f<\/th>\n<th>\u4f18\u70b9<\/th>\n<th>\u7f3a\u70b9<\/th>\n<th>\u9002\u7528\u5efa\u8bae<\/th>\n<\/tr>\n<tr>\n<td>\u590d\u4f4d\u7ed5\u7ec4<\/td>\n<td>\u7b80\u5355\u3001\u6210\u672c\u4f4e\u3001\u53ef\u9760<\/td>\n<td>\u5360\u7a7a\u6bd4\u53d7\u9650\uff0c\u9700\u989d\u5916\u7ed5\u7ec4<\/td>\n<td>\u4e2d\u4f4e\u529f\u7387\u3001\u6210\u672c\u654f\u611f<\/td>\n<\/tr>\n<tr>\n<td>RCD \u7b9d\u4f4d<\/td>\n<td>\u4e0d\u7528\u590d\u4f4d\u7ed5\u7ec4<\/td>\n<td>\u80fd\u91cf\u53d8\u70ed\uff0c\u6548\u7387\u8f83\u4f4e<\/td>\n<td>\u539f\u578b\u9a8c\u8bc1\u3001\u529f\u7387\u8f83\u5c0f<\/td>\n<\/tr>\n<tr>\n<td>\u6709\u6e90\u7b9d\u4f4d<\/td>\n<td>\u56de\u6536\u80fd\u91cf\uff0c\u53ef\u5b9e\u73b0\u8f6f\u5f00\u5173<\/td>\n<td>\u63a7\u5236\u590d\u6742\uff0c\u5668\u4ef6\u591a<\/td>\n<td>\u9ad8\u6548\u7387\u3001\u4e2d\u9ad8\u529f\u7387<\/td>\n<\/tr>\n<tr>\n<td>\u53cc\u7ba1\u6b63\u6fc0<\/td>\n<td>\u5f00\u5173\u7ba1\u7535\u538b\u5e94\u529b\u4f4e<\/td>\n<td>\u4e24\u7ba1\u540c\u6b65\u9a71\u52a8\u3001\u4e8c\u6781\u7ba1\u591a<\/td>\n<td>\u9ad8\u8f93\u5165\u7535\u538b\u5de5\u4e1a\u7535\u6e90<\/td>\n<\/tr>\n<\/table>\n<p>\u6b63\u6fc0\u8f93\u51fa\u7535\u611f\u7684\u8bbe\u8ba1\u76ee\u6807\u901a\u5e38\u662f\u8fde\u7eed\u5bfc\u901a\u3002\u7535\u611f\u7eb9\u6ce2\u8d8a\u5c0f\uff0c\u8f93\u51fa\u7535\u5bb9 RMS \u7535\u6d41\u8d8a\u4f4e\uff0c\u4f46\u7535\u611f\u4f53\u79ef\u548c\u94dc\u635f\u589e\u52a0\uff1b\u7eb9\u6ce2\u8fc7\u5927\u5219\u4f1a\u5f15\u8d77\u7535\u6d41\u6a21\u5f0f\u63a7\u5236\u566a\u58f0\u548c\u8f93\u51fa\u7eb9\u6ce2\u4e0a\u5347\u3002\u5de5\u7a0b\u4e0a\u5e38\u53d6\u5cf0\u5cf0\u503c\u7eb9\u6ce2\u4e3a\u6700\u5927\u8d1f\u8f7d\u7535\u6d41\u7684 10%\uff5e30%\uff0c\u518d\u6839\u636e\u77ac\u6001\u54cd\u5e94\u548c\u5c3a\u5bf8\u4f18\u5316\u3002<\/p>\n<h2>\u5341\u516d\u3001\u63a8\u633d\u7684\u6df1\u5165\u8bbe\u8ba1\uff1a\u4e2d\u5fc3\u62bd\u5934\u4e0e\u4ea4\u9519\u8bef\u5dee<\/h2>\n<p>\u63a8\u633d\u53d8\u538b\u5668\u4e24\u534a\u539f\u8fb9\u7684\u531d\u6570\u5fc5\u987b\u5c3d\u91cf\u4e00\u81f4\uff0c\u7ed5\u5236\u65f6\u53ef\u91c7\u7528\u53cc\u7ebf\u5e76\u7ed5\u540e\u4e32\u8054\uff0c\u518d\u5c06\u4e2d\u70b9\u5f15\u51fa\u3002\u8fd9\u6837\u4e24\u534a\u7684\u6f0f\u611f\u3001\u76f4\u6d41\u7535\u963b\u548c\u5206\u5e03\u7535\u5bb9\u66f4\u63a5\u8fd1\u3002\u4e2d\u5fc3\u62bd\u5934\u94dc\u7b94\u8981\u80fd\u627f\u53d7\u603b\u8f93\u5165\u7535\u6d41\uff0c\u4e0d\u80fd\u53ea\u6309\u5355\u7ba1\u7535\u6d41\u9009\u62e9\u3002<\/p>\n<p>\u63a8\u633d\u6b7b\u533a\u7684\u53d6\u503c\u662f\u6298\u4e2d\uff1a\u6b7b\u533a\u592a\u77ed\uff0c\u4e0a\u4e0b\u7ba1\u6362\u5411\u65f6\u6f0f\u611f\u7535\u6d41\u53ef\u80fd\u9020\u6210\u76f4\u901a\uff1b\u6b7b\u533a\u592a\u957f\uff0c\u53d8\u538b\u5668\u80fd\u91cf\u901a\u8fc7\u4f53\u4e8c\u6781\u7ba1\u6216\u5bc4\u751f\u56de\u8def\u7eed\u6d41\uff0c\u589e\u52a0\u635f\u8017\u3002\u5b9e\u9645\u53d6\u503c\u5e94\u7ed3\u5408\u6805\u6781\u9a71\u52a8\u5668\u4f20\u64ad\u5ef6\u8fdf\u3001MOSFET \u5173\u65ad\u65f6\u95f4\u3001\u6e29\u5ea6\u53d8\u5316\u548c\u6700\u5927\u8d1f\u8f7d\u7535\u6d41\u6d4b\u8bd5\u3002<\/p>\n<p>\u7535\u6d41\u6a21\u5f0f\u63a7\u5236\u53ef\u4ee5\u9010\u5468\u671f\u9650\u5236\u5cf0\u503c\u7535\u6d41\uff0c\u907f\u514d\u78c1\u82af\u9971\u548c\uff1b\u7535\u538b\u6a21\u5f0f\u63a7\u5236\u5219\u9700\u8981\u66f4\u4e25\u683c\u7684\u6700\u5927\u5360\u7a7a\u6bd4\u548c\u8f6f\u542f\u52a8\u3002\u5bf9\u4e8e\u7535\u6c60\u8f93\u5165\uff0c\u8f93\u5165\u7535\u538b\u4f1a\u968f SOC\u3001\u7ebf\u7f06\u538b\u964d\u548c\u77ac\u6001\u53d8\u5316\uff0c\u531d\u6bd4\u548c\u9650\u6d41\u70b9\u5fc5\u987b\u6309\u6700\u4f4e\u7535\u538b\u5de5\u51b5\u8bbe\u8ba1\u3002<\/p>\n<h2>\u5341\u4e03\u3001\u534a\u6865\u4e0e LLC\uff1a\u4e3a\u4ec0\u4e48\u9ad8\u7aef\u7535\u6e90\u5e38\u4ece\u534a\u6865\u5f00\u59cb<\/h2>\n<p>\u534a\u6865\u53ea\u9700\u8981\u4e24\u4e2a\u4e3b\u5f00\u5173\uff0c\u5374\u80fd\u5728\u53d8\u538b\u5668\u4e0a\u4ea7\u751f\u53cc\u6781\u6027\u6fc0\u52b1\uff0c\u56e0\u6b64\u5e38\u4f5c\u4e3a LLC \u8c10\u632f\u53d8\u6362\u5668\u7684\u57fa\u7840\u3002LLC \u7684\u8c10\u632f\u8154\u5305\u62ec\u8c10\u632f\u7535\u611f Lr\u3001\u8c10\u632f\u7535\u5bb9 Cr \u548c\u52b1\u78c1\u7535\u611f Lm\u3002\u4e32\u8054\u8c10\u632f\u9891\u7387 f<sub>r<\/sub>=1\/(2\u03c0\u221a(LrCr))\uff0c\u589e\u76ca\u7531\u5f00\u5173\u9891\u7387\u76f8\u5bf9\u8c10\u632f\u9891\u7387\u7684\u4f4d\u7f6e\u51b3\u5b9a\u3002\u9ad8\u4e8e\u8c10\u632f\u9891\u7387\u65f6\u589e\u76ca\u4e0b\u964d\uff0c\u4f4e\u4e8e\u8c10\u632f\u9891\u7387\u65f6\u589e\u76ca\u4e0a\u5347\uff0c\u63a7\u5236\u5668\u901a\u8fc7\u53d8\u9891\u7a33\u538b\u3002<\/p>\n<p>LLC \u7684\u4f18\u70b9\u662f\u539f\u8fb9 MOSFET \u5bb9\u6613\u5b9e\u73b0 ZVS\uff0c\u526f\u8fb9\u6574\u6d41\u5668\u4e5f\u53ef\u5b9e\u73b0\u8fd1\u4f3c\u96f6\u7535\u6d41\u5173\u65ad\u3002\u7f3a\u70b9\u662f\u8f7b\u8f7d\u8c03\u8282\u8303\u56f4\u6709\u9650\u3001\u78c1\u6027\u53c2\u6570\u654f\u611f\u3001\u542f\u52a8\u4e0e\u77ed\u8def\u4fdd\u62a4\u66f4\u590d\u6742\u3002\u8bbe\u8ba1\u65f6\u8981\u540c\u65f6\u8ba1\u7b97\u989d\u5b9a\u8f93\u5165\u3001\u6700\u4f4e\u8f93\u5165\u3001\u7a7a\u8f7d\u548c\u77ed\u8def\u4fdd\u62a4\u70b9\uff0c\u4e0d\u80fd\u53ea\u7528\u989d\u5b9a\u8d1f\u8f7d\u7684\u4e00\u4e2a\u5de5\u4f5c\u70b9\u3002<\/p>\n<h2>\u5341\u516b\u3001\u5168\u6865\u4e0e\u79fb\u76f8\u63a7\u5236\uff1a\u73af\u6d41\u3001\u5360\u7a7a\u6bd4\u4e22\u5931\u4e0e\u6574\u6d41<\/h2>\n<p>\u79fb\u76f8\u5168\u6865\u7684\u4e24\u4e2a\u6865\u81c2\u5206\u522b\u79f0\u4e3a\u8d85\u524d\u6865\u81c2\u548c\u6ede\u540e\u6865\u81c2\u3002\u8d85\u524d\u6865\u81c2\u901a\u5e38\u66f4\u5bb9\u6613\u5b9e\u73b0 ZVS\uff0c\u6ede\u540e\u6865\u81c2\u5728\u8f7b\u8f7d\u65f6\u53ef\u80fd\u7f3a\u5c11\u8db3\u591f\u80fd\u91cf\u7ed9\u8f93\u51fa\u7535\u5bb9\u5145\u653e\u7535\uff0c\u56e0\u6b64\u9700\u8981\u5229\u7528\u52b1\u78c1\u7535\u6d41\u3001\u589e\u52a0\u4e32\u8054\u7535\u611f\u6216\u91c7\u7528\u6df7\u5408\u8c03\u5236\u6269\u5927 ZVS \u8303\u56f4\u3002<\/p>\n<p>\u526f\u8fb9\u4e8c\u6781\u7ba1\u53cd\u5411\u6062\u590d\u4f1a\u628a\u80fd\u91cf\u53cd\u5c04\u56de\u539f\u8fb9\uff0c\u5f62\u6210\u5c16\u5cf0\u548c\u73af\u6d41\u3002\u4f4e\u538b\u5927\u7535\u6d41\u8f93\u51fa\u9002\u5408\u4f7f\u7528\u540c\u6b65\u6574\u6d41 MOSFET\uff0c\u4f46\u540c\u6b65\u6574\u6d41\u7684\u9a71\u52a8\u65f6\u5e8f\u5fc5\u987b\u9632\u6b62\u4e24\u4e2a\u6574\u6d41\u7ba1\u540c\u65f6\u5bfc\u901a\u3002\u6b7b\u533a\u3001\u4f53\u4e8c\u6781\u7ba1\u5bfc\u901a\u65f6\u95f4\u548c MOSFET \u7684 Qrr \u90fd\u4f1a\u5f71\u54cd\u6548\u7387\uff0c\u793a\u6ce2\u5668\u6d4b\u91cf\u6805\u6781\u4e0e\u6f0f\u6781\u6ce2\u5f62\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002<\/p>\n<h2>\u5341\u4e5d\u3001\u63a7\u5236\u7b56\u7565\u5bf9\u6bd4<\/h2>\n<table>\n<tr>\n<th>\u63a7\u5236\u65b9\u5f0f<\/th>\n<th>\u4f18\u70b9<\/th>\n<th>\u9700\u8981\u6ce8\u610f<\/th>\n<\/tr>\n<tr>\n<td>\u5cf0\u503c\u7535\u6d41\u6a21\u5f0f<\/td>\n<td>\u9650\u6d41\u76f4\u63a5\u3001\u52a8\u6001\u54cd\u5e94\u5feb<\/td>\n<td>D&gt;0.5 \u65f6\u9700\u659c\u5761\u8865\u507f<\/td>\n<\/tr>\n<tr>\n<td>\u7535\u538b\u6a21\u5f0f<\/td>\n<td>\u7ed3\u6784\u76f4\u89c2\u3001\u566a\u58f0\u8def\u5f84\u5c11<\/td>\n<td>\u529f\u7387\u7ea7\u53cc\u6781\u70b9\u8865\u507f\u8f83\u590d\u6742<\/td>\n<\/tr>\n<tr>\n<td>\u5e73\u5747\u7535\u6d41\u6a21\u5f0f<\/td>\n<td>\u8f93\u5165\/\u8f93\u51fa\u7535\u6d41\u63a7\u5236\u7cbe\u786e<\/td>\n<td>\u8fd0\u653e\u8865\u507f\u4e0e\u91c7\u6837\u5e26\u5bbd\u8981\u6c42\u9ad8<\/td>\n<\/tr>\n<tr>\n<td>\u79fb\u76f8\u63a7\u5236<\/td>\n<td>\u9002\u5408\u5168\u6865\u8f6f\u5f00\u5173<\/td>\n<td>\u8f7b\u8f7d\u73af\u6d41\u548c ZVS \u8303\u56f4\u95ee\u9898<\/td>\n<\/tr>\n<tr>\n<td>\u53d8\u9891\u8c10\u632f<\/td>\n<td>\u8f6f\u5f00\u5173\u3001\u9ad8\u6548\u7387<\/td>\n<td>\u9891\u7387\u8303\u56f4\u3001\u78c1\u6027\u8bbe\u8ba1\u654f\u611f<\/td>\n<\/tr>\n<\/table>\n<h2>\u4e8c\u5341\u3001\u4eff\u771f\u4e0e\u5b9e\u9a8c\u9a8c\u8bc1\u6d41\u7a0b<\/h2>\n<p>\u63a8\u8350\u5148\u7528\u5c0f\u4fe1\u53f7\u6a21\u578b\u786e\u5b9a\u7a33\u6001\u5de5\u4f5c\u70b9\uff0c\u518d\u7528 SPICE \u6216\u5382\u5546\u6a21\u578b\u89c2\u5bdf\u5f00\u5173\u77ac\u6001\uff0c\u6700\u540e\u5236\u4f5c\u4f4e\u538b\u9694\u79bb\u6837\u673a\u3002\u4eff\u771f\u5e94\u8986\u76d6\u8f93\u5165\u4e0a\u4e0b\u9650\u3001\u6ee1\u8f7d\u3001\u534a\u8f7d\u3001\u8f7b\u8f7d\u3001\u542f\u52a8\u3001\u77ed\u8def\u548c\u8d1f\u8f7d\u9636\u8dc3\u3002\u5b9e\u9a8c\u9636\u6bb5\u5148\u7528\u9650\u6d41\u76f4\u6d41\u7535\u6e90\u548c\u4f4e\u8f93\u5165\u7535\u538b\uff0c\u786e\u8ba4\u9a71\u52a8\u4e92\u9501\u3001\u53d8\u538b\u5668\u78c1\u901a\u548c\u6e29\u5347\uff0c\u518d\u9010\u6b65\u63d0\u9ad8\u8f93\u5165\u3002<\/p>\n<p>\u6d4b\u91cf\u9ad8\u4fa7\u6d6e\u5730\u6ce2\u5f62\u65f6\u8981\u4f7f\u7528\u5408\u9002\u5e26\u5bbd\u548c\u989d\u5b9a\u7535\u538b\u7684\u5dee\u5206\u63a2\u5934\uff1b\u666e\u901a\u793a\u6ce2\u5668\u5730\u5939\u4e0d\u80fd\u968f\u610f\u63a5\u5230\u6865\u81c2\u4e2d\u70b9\uff0c\u5426\u5219\u53ef\u80fd\u9020\u6210\u77ed\u8def\u3002\u7535\u6d41\u63a2\u5934\u8981\u6821\u96f6\uff0c\u5c3d\u91cf\u907f\u5f00\u5927\u9762\u79ef\u78c1\u573a\u548c\u9ad8 di\/dt \u5bfc\u4f53\u3002\u6240\u6709\u6ce2\u5f62\u90fd\u5e94\u8bb0\u5f55\u65f6\u95f4\u57fa\u51c6\u3001\u63a2\u5934\u8870\u51cf\u3001\u5e26\u5bbd\u9650\u5236\u548c\u8f93\u5165\u8f93\u51fa\u5de5\u51b5\u3002<\/p>\n<h2>\u4e8c\u5341\u4e00\u3001\u5e38\u89c1\u6545\u969c\u8bca\u65ad\u8868<\/h2>\n<table>\n<tr>\n<th>\u73b0\u8c61<\/th>\n<th>\u53ef\u80fd\u539f\u56e0<\/th>\n<th>\u4f18\u5148\u68c0\u67e5<\/th>\n<\/tr>\n<tr>\n<td>\u7a7a\u8f7d\u6b63\u5e38\uff0c\u6ee1\u8f7d\u70b8\u7ba1<\/td>\n<td>\u5cf0\u503c\u7535\u6d41\u8fc7\u5927\u3001\u5c16\u5cf0\u3001\u6563\u70ed\u4e0d\u8db3<\/td>\n<td>VDS\u3001\u9650\u6d41\u70b9\u3001\u7b9d\u4f4d\u6ce2\u5f62<\/td>\n<\/tr>\n<tr>\n<td>\u8f93\u51fa\u6709\u4f4e\u9891\u5578\u53eb<\/td>\n<td>\u7a81\u53d1\u6a21\u5f0f\u3001\u78c1\u82af\u673a\u68b0\u632f\u52a8\u3001\u73af\u8def\u4e0d\u7a33\u5b9a<\/td>\n<td>\u63a7\u5236\u9891\u7387\u3001\u8865\u507f\u3001\u78c1\u82af\u56fa\u5b9a<\/td>\n<\/tr>\n<tr>\n<td>\u53d8\u538b\u5668\u53d1\u70ed\u660e\u663e<\/td>\n<td>\u78c1\u901a\u5bc6\u5ea6\u8fc7\u9ad8\u3001\u94dc\u635f\u6216\u504f\u78c1<\/td>\n<td>\u539f\u8fb9\u4f0f\u79d2\u3001\u531d\u6570\u3001\u7ed5\u7ec4\u6e29\u5347<\/td>\n<\/tr>\n<tr>\n<td>EMI \u8d85\u6807<\/td>\n<td>\u5171\u6a21\u7535\u6d41\u3001\u6f0f\u611f\u632f\u94c3\u3001\u56de\u8def\u9762\u79ef\u5927<\/td>\n<td>\u5f00\u5173\u8282\u70b9\u3001Y \u7535\u5bb9\u3001\u5c4f\u853d\u4e0e\u5e03\u5c40<\/td>\n<\/tr>\n<tr>\n<td>\u8f93\u51fa\u7eb9\u6ce2\u5f02\u5e38<\/td>\n<td>\u7535\u611f\u9971\u548c\u3001\u6574\u6d41\u53cd\u5411\u6062\u590d\u3001\u7535\u5bb9 ESR<\/td>\n<td>\u7535\u611f\u7535\u6d41\u3001\u4e8c\u6781\u7ba1\u7535\u6d41\u3001\u7535\u5bb9\u6e29\u5347<\/td>\n<\/tr>\n<\/table>\n<h2>\u4e8c\u5341\u4e8c\u3001\u8bbe\u8ba1\u68c0\u67e5\u6e05\u5355<\/h2>\n<ol>\n<li>\u660e\u786e\u8f93\u5165\u8303\u56f4\u3001\u8f93\u51fa\u529f\u7387\u3001\u9694\u79bb\u8010\u538b\u3001\u6548\u7387\u548c\u73af\u5883\u6e29\u5ea6\u3002<\/li>\n<li>\u786e\u5b9a\u62d3\u6251\u540e\uff0c\u8ba1\u7b97\u6700\u5927\u5360\u7a7a\u6bd4\u3001\u531d\u6bd4\u3001\u78c1\u901a\u6446\u5e45\u548c\u5668\u4ef6\u5e94\u529b\u3002<\/li>\n<li>\u4e3a MOSFET\u3001\u4e8c\u6781\u7ba1\u3001\u7535\u5bb9\u3001\u7535\u611f\u548c\u78c1\u82af\u5efa\u7acb\u6700\u574f\u5de5\u51b5\u8868\u3002<\/li>\n<li>\u68c0\u67e5\u542f\u52a8\u3001\u5173\u673a\u3001\u77ed\u8def\u3001\u8fc7\u8f7d\u3001\u8f93\u5165\u6d6a\u6d8c\u548c\u8f93\u51fa\u53cd\u704c\u3002<\/li>\n<li>\u9a8c\u8bc1\u63a7\u5236\u5668 UVLO\u3001\u8f6f\u542f\u52a8\u3001\u9010\u5468\u671f\u9650\u6d41\u3001\u8fc7\u6e29\u548c\u6545\u969c\u9501\u5b58\u3002<\/li>\n<li>\u68c0\u67e5\u722c\u7535\u8ddd\u79bb\u3001\u7535\u6c14\u95f4\u9699\u3001\u7edd\u7f18\u80f6\u5e26\u3001\u4e09\u9632\u6f06\u548c\u8010\u538b\u6d4b\u8bd5\u3002<\/li>\n<li>\u5728\u6574\u673a\u5916\u58f3\u3001\u7ebf\u7f06\u3001\u6563\u70ed\u5668\u548c\u5c4f\u853d\u5c42\u5b89\u88c5\u540e\u91cd\u65b0\u505a EMI \u4e0e\u6e29\u5347\u6d4b\u8bd5\u3002<\/li>\n<\/ol>\n<h2>\u4e8c\u5341\u4e09\u3001\u8fdb\u4e00\u6b65\u7684\u9009\u578b\u6848\u4f8b<\/h2>\n<p><strong>\u6848\u4f8b A\uff1a5 V\/20 W \u673a\u9876\u76d2\u8f85\u52a9\u7535\u6e90\u3002<\/strong>\u8f93\u5165\u4e3a 85\uff5e265 VAC\uff0c\u8f93\u51fa\u9700\u8981\u4f4e\u5f85\u673a\u548c\u591a\u8def\u8f85\u52a9\u7535\u538b\u3002\u53cd\u6fc0\u6700\u5408\u9002\uff0c\u91c7\u7528\u51c6\u8c10\u632f\u6216\u8c37\u5e95\u5f00\u901a\u964d\u4f4e\u5f00\u5173\u635f\u8017\uff0c\u526f\u8fb9\u4f7f\u7528\u8096\u7279\u57fa\u4e8c\u6781\u7ba1\uff0c\u91cd\u70b9\u662f RCD \u7b9d\u4f4d\u3001\u53d8\u538b\u5668\u5b89\u89c4\u548c\u5f85\u673a\u7a81\u53d1\u6a21\u5f0f\u3002<\/p>\n<p><strong>\u6848\u4f8b B\uff1a24 V \u8f6c 12 V\/200 W \u5de5\u4e1a\u6a21\u5757\u3002<\/strong>\u8f93\u5165\u7535\u538b\u4f4e\u3001\u8f93\u51fa\u7535\u6d41\u7ea6 16.7 A\u3002\u63a8\u633d\u53ef\u4ee5\u51cf\u5c11\u539f\u8fb9\u5f00\u5173\u6570\u91cf\u5e76\u5229\u7528\u4e2d\u5fc3\u62bd\u5934\uff0c\u4f46\u5e94\u4e25\u683c\u5339\u914d\u4e24\u534a\u7ed5\u7ec4\uff0c\u8f93\u51fa\u4fa7\u91c7\u7528\u540c\u6b65\u6574\u6d41\u6216\u4f4e\u538b\u8096\u7279\u57fa\u3002<\/p>\n<p><strong>\u6848\u4f8b C\uff1a400 V \u6bcd\u7ebf\u8f6c 48 V\/1 kW\u3002<\/strong>\u534a\u6865\u548c\u5168\u6865\u90fd\u53ef\u884c\u3002\u82e5\u6210\u672c\u4f18\u5148\u3001\u9891\u7387\u4e2d\u7b49\uff0c\u534a\u6865\u914d LLC\uff1b\u82e5\u9700\u8981\u5bbd\u8f93\u5165\u548c\u66f4\u9ad8\u529f\u7387\u5bc6\u5ea6\uff0c\u79fb\u76f8\u5168\u6865\u914d\u540c\u6b65\u6574\u6d41\u66f4\u5408\u9002\u3002\u5668\u4ef6\u8010\u538b\u3001\u9a71\u52a8\u9694\u79bb\u3001\u53d8\u538b\u5668\u7edd\u7f18\u548c\u6563\u70ed\u662f\u4e3b\u8981\u6311\u6218\u3002<\/p>\n<h2>\u4e8c\u5341\u56db\u3001\u603b\u7ed3\u6027\u7684\u8bbe\u8ba1\u601d\u60f3<\/h2>\n<p>\u62d3\u6251\u9009\u62e9\u672c\u8d28\u4e0a\u662f\u5728\u80fd\u91cf\u5bc6\u5ea6\u3001\u5668\u4ef6\u5e94\u529b\u3001\u63a7\u5236\u590d\u6742\u5ea6\u3001\u6210\u672c\u548c\u6548\u7387\u4e4b\u95f4\u505a\u5e73\u8861\u3002\u53cd\u6fc0\u628a\u50a8\u80fd\u96c6\u4e2d\u5728\u78c1\u5316\u7535\u611f\u4e2d\uff0c\u9002\u5408\u4f4e\u529f\u7387\uff1b\u6b63\u6fc0\u628a\u4f20\u80fd\u4e0e\u50a8\u80fd\u5206\u5f00\uff0c\u9002\u5408\u4e2d\u529f\u7387\uff1b\u63a8\u633d\u7528\u4e24\u534a\u539f\u8fb9\u63d0\u9ad8\u4f4e\u538b\u8f93\u5165\u5229\u7528\u7387\uff1b\u534a\u6865\u7528\u6bcd\u7ebf\u7535\u5bb9\u548c\u53cc\u5411\u6fc0\u52b1\u964d\u4f4e\u5668\u4ef6\u538b\u529b\uff1b\u5168\u6865\u7528\u56db\u4e2a\u5f00\u5173\u628a\u6574\u4e2a\u6bcd\u7ebf\u7535\u538b\u65bd\u52a0\u5230\u53d8\u538b\u5668\uff0c\u9002\u5408\u5927\u529f\u7387\u548c\u8f6f\u5f00\u5173\u3002<\/p>\n<p>\u5f53\u4f60\u638c\u63e1\u4e86\u4f0f\u79d2\u5e73\u8861\u3001\u5b89\u531d\u5e73\u8861\u3001\u80fd\u91cf\u5b88\u6052\u548c RMS \u635f\u8017\u56db\u4e2a\u6838\u5fc3\u6982\u5ff5\uff0c\u4e94\u79cd\u62d3\u6251\u5c31\u4e0d\u518d\u662f\u4e92\u76f8\u5272\u88c2\u7684\u4e94\u5f20\u7535\u8def\u56fe\u3002\u9762\u5bf9\u65b0\u89c4\u683c\u65f6\uff0c\u53ef\u4ee5\u5148\u4ece\u8f93\u51fa\u529f\u7387\u4e0e\u8f93\u5165\u7535\u538b\u5224\u65ad\u5668\u4ef6\u6570\u91cf\uff0c\u518d\u7531\u5360\u7a7a\u6bd4\u548c\u531d\u6bd4\u786e\u5b9a\u53d8\u538b\u5668\uff0c\u63a5\u7740\u7531\u7eb9\u6ce2\u6307\u6807\u786e\u5b9a\u7535\u611f\u548c\u7535\u5bb9\uff0c\u6700\u540e\u7528\u6ce2\u5f62\u3001\u6e29\u5347\u3001\u6548\u7387\u548c EMI \u5b9e\u9a8c\u95ed\u73af\u9a8c\u8bc1\u3002<\/p>\n<h2>\u4e8c\u5341\u4e94\u3001\u5de5\u7a0b\u7ecf\u9a8c\u8865\u5145\uff08\u7b2c 1 \u8f6e\uff09<\/h2>\n<p>\u5728\u771f\u5b9e\u4ea7\u54c1\u4e2d\uff0c\u62d3\u6251\u7684\u7406\u8bba\u4f18\u52bf\u5fc5\u987b\u7ecf\u8fc7\u5668\u4ef6\u5bc4\u751f\u53c2\u6570\u3001\u78c1\u6027\u5143\u4ef6\u79bb\u6563\u6027\u548c\u751f\u4ea7\u4e00\u81f4\u6027\u9a8c\u8bc1\u3002\u8bbe\u8ba1\u8bc4\u5ba1\u65f6\u5efa\u8bae\u628a\u6bcf\u4e2a\u516c\u5f0f\u5bf9\u5e94\u5230\u4e00\u4e2a\u53ef\u6d4b\u91cf\u91cf\uff1a\u531d\u6570\u516c\u5f0f\u5bf9\u5e94\u78c1\u901a\u6446\u5e45\uff0c\u7535\u611f\u516c\u5f0f\u5bf9\u5e94\u7535\u6d41\u7eb9\u6ce2\uff0c\u635f\u8017\u516c\u5f0f\u5bf9\u5e94\u70ed\u50cf\u548c\u6e29\u5347\uff0c\u7b9d\u4f4d\u516c\u5f0f\u5bf9\u5e94 VDS \u5cf0\u503c\uff0c\u63a7\u5236\u73af\u8def\u516c\u5f0f\u5bf9\u5e94\u8d1f\u8f7d\u9636\u8dc3\u3002\u53ea\u6709\u8fd9\u6837\uff0c\u8ba1\u7b97\u624d\u80fd\u771f\u6b63\u6307\u5bfc\u786c\u4ef6\uff0c\u800c\u4e0d\u662f\u505c\u7559\u5728\u7eb8\u9762\u3002<\/p>\n<p>\u6837\u673a\u8c03\u8bd5\u8981\u9075\u5faa\u7531\u4f4e\u5230\u9ad8\u3001\u7531\u9759\u6001\u5230\u52a8\u6001\u3001\u7531\u5c40\u90e8\u5230\u6574\u673a\u7684\u987a\u5e8f\u3002\u5148\u9a8c\u8bc1\u9a71\u52a8\u4e92\u9501\u548c\u6b7b\u533a\uff0c\u518d\u9a8c\u8bc1\u7a7a\u8f7d\u6ce2\u5f62\uff1b\u968f\u540e\u9010\u7ea7\u589e\u52a0\u8d1f\u8f7d\uff0c\u8bb0\u5f55\u5f00\u5173\u8282\u70b9\u3001\u53d8\u538b\u5668\u548c\u8f93\u51fa\u7535\u611f\u6e29\u5347\uff1b\u6700\u540e\u518d\u505a\u8f93\u5165\u6d6a\u6d8c\u3001\u8d1f\u8f7d\u7a81\u53d8\u548c\u77ed\u8def\u3002\u4efb\u4f55\u4e00\u6b21\u5668\u4ef6\u5931\u6548\u90fd\u5e94\u4fdd\u7559\u5931\u6548\u524d\u540e\u7684\u6ce2\u5f62\uff0c\u7ed3\u5408 MOSFET SOA\u3001\u4e8c\u6781\u7ba1\u53cd\u5411\u6062\u590d\u548c\u78c1\u82af\u6e29\u5ea6\u8fdb\u884c\u5b9a\u4f4d\u3002<\/p>\n<h2>\u4e8c\u5341\u4e94\u3001\u5de5\u7a0b\u7ecf\u9a8c\u8865\u5145\uff08\u7b2c 2 \u8f6e\uff09<\/h2>\n<p>\u5728\u771f\u5b9e\u4ea7\u54c1\u4e2d\uff0c\u62d3\u6251\u7684\u7406\u8bba\u4f18\u52bf\u5fc5\u987b\u7ecf\u8fc7\u5668\u4ef6\u5bc4\u751f\u53c2\u6570\u3001\u78c1\u6027\u5143\u4ef6\u79bb\u6563\u6027\u548c\u751f\u4ea7\u4e00\u81f4\u6027\u9a8c\u8bc1\u3002\u8bbe\u8ba1\u8bc4\u5ba1\u65f6\u5efa\u8bae\u628a\u6bcf\u4e2a\u516c\u5f0f\u5bf9\u5e94\u5230\u4e00\u4e2a\u53ef\u6d4b\u91cf\u91cf\uff1a\u531d\u6570\u516c\u5f0f\u5bf9\u5e94\u78c1\u901a\u6446\u5e45\uff0c\u7535\u611f\u516c\u5f0f\u5bf9\u5e94\u7535\u6d41\u7eb9\u6ce2\uff0c\u635f\u8017\u516c\u5f0f\u5bf9\u5e94\u70ed\u50cf\u548c\u6e29\u5347\uff0c\u7b9d\u4f4d\u516c\u5f0f\u5bf9\u5e94 VDS \u5cf0\u503c\uff0c\u63a7\u5236\u73af\u8def\u516c\u5f0f\u5bf9\u5e94\u8d1f\u8f7d\u9636\u8dc3\u3002\u53ea\u6709\u8fd9\u6837\uff0c\u8ba1\u7b97\u624d\u80fd\u771f\u6b63\u6307\u5bfc\u786c\u4ef6\uff0c\u800c\u4e0d\u662f\u505c\u7559\u5728\u7eb8\u9762\u3002<\/p>\n<p>\u6837\u673a\u8c03\u8bd5\u8981\u9075\u5faa\u7531\u4f4e\u5230\u9ad8\u3001\u7531\u9759\u6001\u5230\u52a8\u6001\u3001\u7531\u5c40\u90e8\u5230\u6574\u673a\u7684\u987a\u5e8f\u3002\u5148\u9a8c\u8bc1\u9a71\u52a8\u4e92\u9501\u548c\u6b7b\u533a\uff0c\u518d\u9a8c\u8bc1\u7a7a\u8f7d\u6ce2\u5f62\uff1b\u968f\u540e\u9010\u7ea7\u589e\u52a0\u8d1f\u8f7d\uff0c\u8bb0\u5f55\u5f00\u5173\u8282\u70b9\u3001\u53d8\u538b\u5668\u548c\u8f93\u51fa\u7535\u611f\u6e29\u5347\uff1b\u6700\u540e\u518d\u505a\u8f93\u5165\u6d6a\u6d8c\u3001\u8d1f\u8f7d\u7a81\u53d8\u548c\u77ed\u8def\u3002\u4efb\u4f55\u4e00\u6b21\u5668\u4ef6\u5931\u6548\u90fd\u5e94\u4fdd\u7559\u5931\u6548\u524d\u540e\u7684\u6ce2\u5f62\uff0c\u7ed3\u5408 MOSFET 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MOSFET\u3001\u6574\u6d41\u5668\u3001\u7535\u611f\u3001\u53d8\u538b\u5668\u548c\u7b9d\u4f4d\u7535\u963b\u7684\u529f\u8017\u5206\u522b\u5217\u51fa\uff0c\u518d\u6839\u636e\u70ed\u963b\u7f51\u7edc\u4f30\u7b97\u7ed3\u6e29\u3002\u5916\u58f3\u6e29\u5ea6\u4e0d\u7b49\u4e8e\u7ed3\u6e29\uff0c\u6563\u70ed\u5668\u6e29\u5ea6\u4e5f\u4e0d\u80fd\u76f4\u63a5\u66ff\u4ee3\u7ed5\u7ec4\u6e29\u5ea6\u3002\u5bf9\u7edd\u7f18\u80f6\u5e26\u3001\u9aa8\u67b6\u548c\u704c\u5c01\u6750\u6599\uff0c\u8fd8\u8981\u8003\u8651\u957f\u671f\u6e29\u5ea6\u7b49\u7ea7\u3001\u963b\u71c3\u7b49\u7ea7\u548c\u9ad8\u538b\u4e0b\u7684\u5c40\u90e8\u653e\u7535\u3002<\/p>\n<p>\u7535\u6e90\u7684\u8f6f\u4ef6\u548c\u4fdd\u62a4\u903b\u8f91\u540c\u6837\u91cd\u8981\u3002\u6570\u5b57\u63a7\u5236\u5668\u9700\u8981\u5904\u7406\u8f6f\u542f\u52a8\u3001\u8fc7\u6d41\u3001\u8fc7\u538b\u3001\u6b20\u538b\u3001\u8fc7\u6e29\u3001\u98ce\u6247\u6545\u969c\u548c\u901a\u4fe1\u5f02\u5e38\u3002\u4fdd\u62a4\u52a8\u4f5c\u5e94\u533a\u5206\u81ea\u52a8\u6062\u590d\u3001\u6253\u55dd\u91cd\u542f\u548c\u9501\u5b58\u5173\u65ad\uff0c\u907f\u514d\u6545\u969c\u72b6\u6001\u4e0b\u53cd\u590d\u51b2\u51fb\u529f\u7387\u5668\u4ef6\u3002\u5bf9\u4e8e\u5e76\u8054\u7cfb\u7edf\uff0c\u8fd8\u5e94\u8bbe\u8ba1\u5747\u6d41\u3001\u70ed\u63d2\u62d4\u548c OR-ing\uff0c\u9632\u6b62\u5355\u4e2a\u6a21\u5757\u6545\u969c\u62d6\u57ae\u6bcd\u7ebf\u3002<\/p>\n<h2>\u4e8c\u5341\u4e03\u3001\u8bbe\u8ba1\u590d\u76d8\u4e0e\u53ef\u5236\u9020\u6027\uff08\u7b2c 16 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MOSFET\u3001\u6574\u6d41\u5668\u3001\u7535\u611f\u3001\u53d8\u538b\u5668\u548c\u7b9d\u4f4d\u7535\u963b\u7684\u529f\u8017\u5206\u522b\u5217\u51fa\uff0c\u518d\u6839\u636e\u70ed\u963b\u7f51\u7edc\u4f30\u7b97\u7ed3\u6e29\u3002\u5916\u58f3\u6e29\u5ea6\u4e0d\u7b49\u4e8e\u7ed3\u6e29\uff0c\u6563\u70ed\u5668\u6e29\u5ea6\u4e5f\u4e0d\u80fd\u76f4\u63a5\u66ff\u4ee3\u7ed5\u7ec4\u6e29\u5ea6\u3002\u5bf9\u7edd\u7f18\u80f6\u5e26\u3001\u9aa8\u67b6\u548c\u704c\u5c01\u6750\u6599\uff0c\u8fd8\u8981\u8003\u8651\u957f\u671f\u6e29\u5ea6\u7b49\u7ea7\u3001\u963b\u71c3\u7b49\u7ea7\u548c\u9ad8\u538b\u4e0b\u7684\u5c40\u90e8\u653e\u7535\u3002<\/p>\n<p>\u7535\u6e90\u7684\u8f6f\u4ef6\u548c\u4fdd\u62a4\u903b\u8f91\u540c\u6837\u91cd\u8981\u3002\u6570\u5b57\u63a7\u5236\u5668\u9700\u8981\u5904\u7406\u8f6f\u542f\u52a8\u3001\u8fc7\u6d41\u3001\u8fc7\u538b\u3001\u6b20\u538b\u3001\u8fc7\u6e29\u3001\u98ce\u6247\u6545\u969c\u548c\u901a\u4fe1\u5f02\u5e38\u3002\u4fdd\u62a4\u52a8\u4f5c\u5e94\u533a\u5206\u81ea\u52a8\u6062\u590d\u3001\u6253\u55dd\u91cd\u542f\u548c\u9501\u5b58\u5173\u65ad\uff0c\u907f\u514d\u6545\u969c\u72b6\u6001\u4e0b\u53cd\u590d\u51b2\u51fb\u529f\u7387\u5668\u4ef6\u3002\u5bf9\u4e8e\u5e76\u8054\u7cfb\u7edf\uff0c\u8fd8\u5e94\u8bbe\u8ba1\u5747\u6d41\u3001\u70ed\u63d2\u62d4\u548c OR-ing\uff0c\u9632\u6b62\u5355\u4e2a\u6a21\u5757\u6545\u969c\u62d6\u57ae\u6bcd\u7ebf\u3002<\/p>\n<h2>\u4e8c\u5341\u4e03\u3001\u8bbe\u8ba1\u590d\u76d8\u4e0e\u53ef\u5236\u9020\u6027\uff08\u7b2c 17 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MOSFET\u3001\u6574\u6d41\u5668\u3001\u7535\u611f\u3001\u53d8\u538b\u5668\u548c\u7b9d\u4f4d\u7535\u963b\u7684\u529f\u8017\u5206\u522b\u5217\u51fa\uff0c\u518d\u6839\u636e\u70ed\u963b\u7f51\u7edc\u4f30\u7b97\u7ed3\u6e29\u3002\u5916\u58f3\u6e29\u5ea6\u4e0d\u7b49\u4e8e\u7ed3\u6e29\uff0c\u6563\u70ed\u5668\u6e29\u5ea6\u4e5f\u4e0d\u80fd\u76f4\u63a5\u66ff\u4ee3\u7ed5\u7ec4\u6e29\u5ea6\u3002\u5bf9\u7edd\u7f18\u80f6\u5e26\u3001\u9aa8\u67b6\u548c\u704c\u5c01\u6750\u6599\uff0c\u8fd8\u8981\u8003\u8651\u957f\u671f\u6e29\u5ea6\u7b49\u7ea7\u3001\u963b\u71c3\u7b49\u7ea7\u548c\u9ad8\u538b\u4e0b\u7684\u5c40\u90e8\u653e\u7535\u3002<\/p>\n<p>\u7535\u6e90\u7684\u8f6f\u4ef6\u548c\u4fdd\u62a4\u903b\u8f91\u540c\u6837\u91cd\u8981\u3002\u6570\u5b57\u63a7\u5236\u5668\u9700\u8981\u5904\u7406\u8f6f\u542f\u52a8\u3001\u8fc7\u6d41\u3001\u8fc7\u538b\u3001\u6b20\u538b\u3001\u8fc7\u6e29\u3001\u98ce\u6247\u6545\u969c\u548c\u901a\u4fe1\u5f02\u5e38\u3002\u4fdd\u62a4\u52a8\u4f5c\u5e94\u533a\u5206\u81ea\u52a8\u6062\u590d\u3001\u6253\u55dd\u91cd\u542f\u548c\u9501\u5b58\u5173\u65ad\uff0c\u907f\u514d\u6545\u969c\u72b6\u6001\u4e0b\u53cd\u590d\u51b2\u51fb\u529f\u7387\u5668\u4ef6\u3002\u5bf9\u4e8e\u5e76\u8054\u7cfb\u7edf\uff0c\u8fd8\u5e94\u8bbe\u8ba1\u5747\u6d41\u3001\u70ed\u63d2\u62d4\u548c OR-ing\uff0c\u9632\u6b62\u5355\u4e2a\u6a21\u5757\u6545\u969c\u62d6\u57ae\u6bcd\u7ebf\u3002<\/p>\n<h2>\u4e8c\u5341\u4e03\u3001\u8bbe\u8ba1\u590d\u76d8\u4e0e\u53ef\u5236\u9020\u6027\uff08\u7b2c 18 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MOSFET\u3001\u6574\u6d41\u5668\u3001\u7535\u611f\u3001\u53d8\u538b\u5668\u548c\u7b9d\u4f4d\u7535\u963b\u7684\u529f\u8017\u5206\u522b\u5217\u51fa\uff0c\u518d\u6839\u636e\u70ed\u963b\u7f51\u7edc\u4f30\u7b97\u7ed3\u6e29\u3002\u5916\u58f3\u6e29\u5ea6\u4e0d\u7b49\u4e8e\u7ed3\u6e29\uff0c\u6563\u70ed\u5668\u6e29\u5ea6\u4e5f\u4e0d\u80fd\u76f4\u63a5\u66ff\u4ee3\u7ed5\u7ec4\u6e29\u5ea6\u3002\u5bf9\u7edd\u7f18\u80f6\u5e26\u3001\u9aa8\u67b6\u548c\u704c\u5c01\u6750\u6599\uff0c\u8fd8\u8981\u8003\u8651\u957f\u671f\u6e29\u5ea6\u7b49\u7ea7\u3001\u963b\u71c3\u7b49\u7ea7\u548c\u9ad8\u538b\u4e0b\u7684\u5c40\u90e8\u653e\u7535\u3002<\/p>\n<p>\u7535\u6e90\u7684\u8f6f\u4ef6\u548c\u4fdd\u62a4\u903b\u8f91\u540c\u6837\u91cd\u8981\u3002\u6570\u5b57\u63a7\u5236\u5668\u9700\u8981\u5904\u7406\u8f6f\u542f\u52a8\u3001\u8fc7\u6d41\u3001\u8fc7\u538b\u3001\u6b20\u538b\u3001\u8fc7\u6e29\u3001\u98ce\u6247\u6545\u969c\u548c\u901a\u4fe1\u5f02\u5e38\u3002\u4fdd\u62a4\u52a8\u4f5c\u5e94\u533a\u5206\u81ea\u52a8\u6062\u590d\u3001\u6253\u55dd\u91cd\u542f\u548c\u9501\u5b58\u5173\u65ad\uff0c\u907f\u514d\u6545\u969c\u72b6\u6001\u4e0b\u53cd\u590d\u51b2\u51fb\u529f\u7387\u5668\u4ef6\u3002\u5bf9\u4e8e\u5e76\u8054\u7cfb\u7edf\uff0c\u8fd8\u5e94\u8bbe\u8ba1\u5747\u6d41\u3001\u70ed\u63d2\u62d4\u548c OR-ing\uff0c\u9632\u6b62\u5355\u4e2a\u6a21\u5757\u6545\u969c\u62d6\u57ae\u6bcd\u7ebf\u3002<\/p>\n<h2>\u4e8c\u5341\u4e03\u3001\u8bbe\u8ba1\u590d\u76d8\u4e0e\u53ef\u5236\u9020\u6027\uff08\u7b2c 19 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MOSFET\u3001\u6574\u6d41\u5668\u3001\u7535\u611f\u3001\u53d8\u538b\u5668\u548c\u7b9d\u4f4d\u7535\u963b\u7684\u529f\u8017\u5206\u522b\u5217\u51fa\uff0c\u518d\u6839\u636e\u70ed\u963b\u7f51\u7edc\u4f30\u7b97\u7ed3\u6e29\u3002\u5916\u58f3\u6e29\u5ea6\u4e0d\u7b49\u4e8e\u7ed3\u6e29\uff0c\u6563\u70ed\u5668\u6e29\u5ea6\u4e5f\u4e0d\u80fd\u76f4\u63a5\u66ff\u4ee3\u7ed5\u7ec4\u6e29\u5ea6\u3002\u5bf9\u7edd\u7f18\u80f6\u5e26\u3001\u9aa8\u67b6\u548c\u704c\u5c01\u6750\u6599\uff0c\u8fd8\u8981\u8003\u8651\u957f\u671f\u6e29\u5ea6\u7b49\u7ea7\u3001\u963b\u71c3\u7b49\u7ea7\u548c\u9ad8\u538b\u4e0b\u7684\u5c40\u90e8\u653e\u7535\u3002<\/p>\n<p>\u7535\u6e90\u7684\u8f6f\u4ef6\u548c\u4fdd\u62a4\u903b\u8f91\u540c\u6837\u91cd\u8981\u3002\u6570\u5b57\u63a7\u5236\u5668\u9700\u8981\u5904\u7406\u8f6f\u542f\u52a8\u3001\u8fc7\u6d41\u3001\u8fc7\u538b\u3001\u6b20\u538b\u3001\u8fc7\u6e29\u3001\u98ce\u6247\u6545\u969c\u548c\u901a\u4fe1\u5f02\u5e38\u3002\u4fdd\u62a4\u52a8\u4f5c\u5e94\u533a\u5206\u81ea\u52a8\u6062\u590d\u3001\u6253\u55dd\u91cd\u542f\u548c\u9501\u5b58\u5173\u65ad\uff0c\u907f\u514d\u6545\u969c\u72b6\u6001\u4e0b\u53cd\u590d\u51b2\u51fb\u529f\u7387\u5668\u4ef6\u3002\u5bf9\u4e8e\u5e76\u8054\u7cfb\u7edf\uff0c\u8fd8\u5e94\u8bbe\u8ba1\u5747\u6d41\u3001\u70ed\u63d2\u62d4\u548c OR-ing\uff0c\u9632\u6b62\u5355\u4e2a\u6a21\u5757\u6545\u969c\u62d6\u57ae\u6bcd\u7ebf\u3002<\/p>\n<h2>\u4e8c\u5341\u4e03\u3001\u8bbe\u8ba1\u590d\u76d8\u4e0e\u53ef\u5236\u9020\u6027\uff08\u7b2c 20 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src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\u53cd\u6fc0\u4e0e\u6b63\u6fc0\uff1a\u7535\u6d41\u65f6\u5e8f\u548c\u50a8\u80fd\u6ce2\u5f62\u5bf9\u6bd4\" class=\"wp-image-91\" style=\"width:100%;height:auto\"  sizes=\"auto, (max-width: 2199px) 100vw, 2199px\" \/><\/div><figcaption>\u56fe 2\uff1a\u53cd\u6fc0 DCM \u4e0e\u6b63\u6fc0 CCM 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class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/09\/power-gain-comparison.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"2215\" height=\"1055\" data-original=\"https:\/\/www.oldhamburger.cn\/wp-content\/uploads\/2026\/09\/power-gain-comparison.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\u7edf\u4e00\u5360\u7a7a\u6bd4\u5b9a\u4e49\u540e\u7684\u4e94\u79cd\u7535\u6e90\u62d3\u6251\u7535\u538b\u589e\u76ca\" class=\"wp-image-92\" style=\"width:100%;height:auto\"  sizes=\"auto, (max-width: 2215px) 100vw, 2215px\" \/><\/div><figcaption>\u56fe 3\uff1a\u7406\u60f3\u8fde\u7eed\u5bfc\u901a\u7535\u538b\u589e\u76ca\u3002\u53cc\u7aef\u7535\u8def\u4f7f\u7528\u603b\u6709\u6548\u4f20\u80fd\u5360\u7a7a\u6bd4 \u03b4\uff0c\u907f\u514d\u4e0e\u5355\u7ba1\u5360\u7a7a\u6bd4 D \u6df7\u6dc6\u3002<\/figcaption><\/figure>\n<p>\u8fd9\u4e9b\u589e\u76ca\u66f2\u7ebf\u5ffd\u7565\u6574\u6d41\u538b\u964d\u3001\u7ed5\u7ec4\u7535\u963b\u3001\u6f0f\u611f\u6362\u6d41\u4e0e\u6b7b\u533a\u3002\u5355\u7aef\u7535\u8def\u5b9a\u4e49 D \u4e3a\u5f00\u5173\u5bfc\u901a\u65f6\u95f4\u9664\u4ee5\u5b8c\u6574\u5468\u671f\uff1b\u53cc\u7aef\u5bf9\u79f0 PWM \u7535\u8def\u5b9a\u4e49 \u03b4 \u4e3a\u4e24\u4e2a\u6709\u6548\u4f20\u80fd\u8109\u51b2\u7684\u603b\u65f6\u957f\u9664\u4ee5\u5b8c\u6574\u5468\u671f\uff0c\u56e0\u6b64 \u03b4=2D\u3002\u6309\u6b64\u7ea6\u5b9a\uff0c\u5168\u6865\u4e0e\u63a8\u633d\u7684\u5f52\u4e00\u5316\u589e\u76ca\u4e3a \u03b4\uff0c\u534a\u6865\u4e3a \u03b4\/2\u3002\u63a8\u633d\u539f\u8fb9\u531d\u6570\u5fc5\u987b\u53d6\u4e2d\u5fc3\u62bd\u5934\u81f3\u4e00\u7aef\u7684\u534a\u7ed5\u7ec4\u531d\u6570\uff0c\u526f\u8fb9\u4e2d\u5fc3\u62bd\u5934\u6574\u6d41\u4e5f\u8981\u4f7f\u7528\u5b9e\u9645\u5bfc\u901a\u7684\u534a\u7ed5\u7ec4\u531d\u6570\u3002\u53cd\u6fc0\u66f2\u7ebf\u53ea\u9002\u7528\u4e8e\u7406\u60f3 CCM\uff0c\u4e0d\u80fd\u76f4\u63a5\u7528\u4e8e DCM \u7684\u8d1f\u8f7d\u8ba1\u7b97\u3002<\/p>\n<p>\u5236\u56fe\u4f9d\u636e\u4e0e\u5ef6\u4f38\u9605\u8bfb\uff1a<a href=\"https:\/\/www.ti.com\/video\/5219549475001\">Texas Instruments\uff1aPower Topologies Overview<\/a>\u3002\u4ee5\u4e0a\u4e3a\u672c\u6587\u7ed8\u5236\u7684\u6559\u5b66\u793a\u610f\u56fe\uff0c\u4e0d\u662f\u5b9e\u6d4b\u6ce2\u5f62\uff0c\u4e5f\u4e0d\u662f\u53ef\u76f4\u63a5\u6295\u4ea7\u7684\u5b8c\u6574\u7535\u8def\u8bbe\u8ba1\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u56fe 1\uff1a\u7406\u60f3\u5316\u539f\u8fb9\u7ed5\u7ec4\u7535\u538b\u3002\u63a8\u633d\u89c2\u5bdf\u56fa\u5b9a\u7684\u4e00\u4e2a\u534a\u539f\u8fb9\uff1b\u534a\u6865\u539f\u8fb9\u5e45\u503c\u4e3a\u6bcd\u7ebf\u7535\u538b\u7684\u4e00\u534a\u3002 \u6458\u8981\uff1a\u9694\u79bb\u578b DC-DC [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":90,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[30,29,27,24,28,26,25],"class_list":["post-84","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-30","tag-29","tag-27","tag-24","tag-28","tag-26","tag-25"],"_links":{"self":[{"href":"https:\/\/www.oldhamburger.cn\/index.php\/wp-json\/wp\/v2\/posts\/84","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=84"}],"version-history":[{"count":5,"href":"https:\/\/www.oldhamburger.cn\/index.php\/wp-json\/wp\/v2\/posts\/84\/revisions"}],"predecessor-version":[{"id":93,"href":"https:\/\/www.oldhamburger.cn\/index.php\/wp-json\/wp\/v2\/posts\/84\/revisions\/93"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.oldhamburger.cn\/index.php\/wp-json\/wp\/v2\/media\/90"}],"wp:attachment":[{"href":"https:\/\/www.oldhamburger.cn\/index.php\/wp-json\/wp\/v2\/media?parent=84"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.oldhamburger.cn\/index.php\/wp-json\/wp\/v2\/categories?post=84"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.oldhamburger.cn\/index.php\/wp-json\/wp\/v2\/tags?post=84"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}