{"id":18443,"date":"2022-03-16T00:00:19","date_gmt":"2022-03-15T16:00:19","guid":{"rendered":"https:\/\/techclass.wfjydl.com\/?p=18443"},"modified":"2022-08-24T15:29:34","modified_gmt":"2022-08-24T07:29:34","slug":"%e4%bc%a0%e7%bb%9f%e7%9a%84mosfet%e9%a9%b1%e5%8a%a8%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/techclass.wfjydl.com\/knowledge\/sic\/a-sic\/03-a-sic\/10239","title":{"rendered":"\u4f20\u7edf\u7684MOSFET\u9a71\u52a8\u65b9\u6cd5"},"content":{"rendered":"<div class=\"p-article--header__inner\">\n<p class=\"p-article--header__cat p-icon-sic\">\u901a\u8fc7\u9a71\u52a8\u5668\u6e90\u6781\u5f15\u811a\u6539\u5584\u5f00\u5173\u635f\u8017<\/p>\n<\/div>\n<div id=\"keypoint-sic\" class=\"keypoint 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style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-18444\" src=\"https:\/\/techclass.wfjydl.com\/wp-content\/uploads\/2022\/03\/sic_ap_3_f1.png\" alt=\"\" width=\"410\" height=\"316\" \/><\/p>\n<p>\u9a71\u52a8\u7535\u6e90V<sub>G<\/sub>\u548cMOSFET\u7684\u6805\u6781\u5f15\u811aGate\u4e4b\u95f4\u8fde\u63a5\u5916\u7f6e\u7535\u963bR<sub>G_EXT<\/sub>\uff0c\u7528\u6765\u63a7\u5236\u5f00\u5173\u901f\u5ea6\uff0c\u4f46\u9a71\u52a8\u7535\u8def\u4e2d\u542b\u6709PCB\u7248\u56fe\u7684\u7535\u611fL<sub>TRACE<\/sub>\u548cMOSFET\u6e90\u6781\u5f15\u811aSource\u7684\u5c01\u88c5\u7535\u611fL<sub>SOURCE<\/sub>\uff0c\u56e0\u6b64\u8fd9\u4e2a\u53c2\u6570\u662f\u9700\u8981\u597d\u597d\u8003\u8651\u7684\u91cd\u8981\u9879\u76ee\u3002\u6805\u6781\u5f15\u811a\u7684\u5c01\u88c5\u7535\u611f\u5305\u542b\u5728L<sub>TRACE<\/sub>\u4e2d\uff0c\u800c\u6f0f\u6781\u5f15\u811aDrain\u7684\u7535\u611fL<sub>DRAIN<\/sub>\u4e0d\u5305\u542b\u5728\u6805\u6781\u9a71\u52a8\u7535\u8def\u4e2d\uff0c\u56e0\u6b64\u5728\u8fd9\u91cc\u7701\u7565\u3002<\/p>\n<p>\u7531\u4e8e\u8be5\u9a71\u52a8\u7535\u8def\u7684\u5177\u4f53\u5de5\u4f5c\u662f\u5f88\u57fa\u672c\u7684\u800c\u4e14\u662f\u5e38\u89c1\u7684\uff0c\u56e0\u6b64\u5728\u6b64\u7701\u7565\u76f8\u5e94\u7684\u4ecb\u7ecd\uff0c\u4f46\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u7531\u4e8e\u6d41\u8fc7\u6f0f\u6781\u548c\u6e90\u6781\u95f4\u7684\u6f0f\u6781\u7535\u6d41I<sub>D<\/sub>\u7684\u53d8\u5316\uff0cL<sub>SOURCE<\/sub>\u4e2d\u4f1a\u4ea7\u751f\u7535\u52a8\u52bfV<sub>LSOURCE<\/sub>\uff0c\u8fd9\u4e00\u70b9\u5728\u4ee5\u5f80\u7684\u5f00\u5173\u901f\u5ea6\u4e0b\u5f88\u5bb9\u6613\u88ab\u5ffd\u7565\u3002\u4e0b\u9762\u662f\u9a71\u52a8\u7535\u8def\u7684\u5f00\u5173\u5de5\u4f5c\u4e2d\u7684\u7535\u538b\u65bd\u52a0\u60c5\u51b5\uff1a<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-18445\" src=\"https:\/\/techclass.wfjydl.com\/wp-content\/uploads\/2022\/03\/sic_ap_3_f2.png\" alt=\"\" width=\"455\" height=\"320\" \/><\/p>\n<p>MOSFET\u88ab\u65bd\u52a0V<sub>G<\/sub>\u5e76\u5bfc\u901a\u540e\uff0cI<sub>D<\/sub>\u5897\u52a0\uff0cL<sub>SOURCE<\/sub>\u6cbf\u56fe\u4e2d\uff08I\uff09\u7684\u65b9\u5411\u4ea7\u751fV<sub>LSOURCE<\/sub>\u3002\u53e6\u4e00\u65b9\u9762\uff0c\u7531\u4e8e\u7535\u6d41I<sub>G<\/sub>\u6d41\u5165\u6805\u6781\u5f15\u811a\uff0c\u56e0\u6b64\u5728R<sub>G_EXT<\/sub>\u4e0a\u4f1a\u4ea7\u751f\u538b\u964dV<sub>RG_EXT<\/sub>(I)\u3002\u8fd9\u4e9b\u7535\u538b\u5305\u542b\u5728\u5bfc\u901a\u65f6\u7684\u9a71\u52a8\u7535\u8def\u7f51\u4e2d\uff0c\u5982\u516c\u5f0f\uff081\uff09\u6240\u793a\uff0c\u5b83\u4eec\u4f7fMOSFET\u7684\u5bfc\u901a\u52a8\u4f5c\u6240\u9700\u7684\u82af\u7247\u4e0a\u7684\u7535\u538bV<sub>GS_INT<\/sub>\u51cf\u5c11\uff0c\u6700\u7ec8\u5bfc\u81f4\u5bfc\u901a\u901f\u5ea6\u4e0b\u964d\u3002L<sub>TRACE<\/sub>\u4e5f\u4f1a\u4ea7\u751f\u7535\u52a8\u52bf\uff0c\u4f46\u56e0\u5176\u975e\u5e38\u5c0f\u800c\u5728\u6b64\u7701\u7565\u3002<\/p>\n<p style=\"margin-left: 10px;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-18446\" src=\"https:\/\/techclass.wfjydl.com\/wp-content\/uploads\/2022\/03\/sic_ap_3_formula01.png\" alt=\"\" width=\"524\" height=\"51\" \/><\/p>\n<p>\u5173\u65ad\u65f6\u4e5f\u662f\u540c\u6837\u7684\u539f\u7406\uff0c\u7531\u4e8e\u516c\u5f0f\uff081\uff09\u4e2d\u7684I<sub>G<\/sub>\u548cdI<sub>D<\/sub>\/dt\u4e3a\u8d1f\uff0c\u56e0\u6b64\u4f7fR<sub>G_EXT<\/sub>\u548cL<sub>SOURCE<\/sub>\u7535\u538b\u4e0a\u5347\uff08II\uff09\uff0cV<sub>SG_INT<\/sub>\u589e\u52a0\uff0c\u5bfc\u81f4\u5173\u65ad\u901f\u5ea6\u4e0b\u964d\u3002<br \/>\n\u4e00\u822c\u6765\u8bb2\uff0c\u7535\u6e90\u5f00\u5173\u5143\u5668\u4ef6\u7684L<sub>SOURCE<\/sub>\u4e3a\u51e0nH\u5230\u5341\u51e0nH\uff0c\u52a0\u4e0a\u5f53dI<sub>D<\/sub>\/dt\u8fbe\u5230\u51e0A\/ns\u65f6\u53ef\u80fd\u4f1a\u4ea7\u751f10V\u4ee5\u4e0a\u7684V<sub>LSOURCE<\/sub>\uff0c\u8fd9\u4e9b\u5c06\u5bf9MOSFET\u5f00\u5173\u5de5\u4f5c\u4ea7\u751f\u5f88\u5927\u7684\u5f71\u54cd\u3002<br 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[&hellip;]","protected":false},"author":4,"featured_media":18478,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1845],"tags":[49,176,178,306,405,1662,1774,1775,1776,1777,1778,1912,1913],"class_list":["post-18443","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-03-a-sic","tag-49","tag-sic","tag-178","tag-igbt","tag-sic-mosfet","tag-1662","tag-mosfet","tag-1778","tag-1912","tag-1913"],"acf":[],"wps_subtitle":"","_links":{"self":[{"href":"https:\/\/techclass.wfjydl.com\/wp-json\/wp\/v2\/posts\/18443","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/techclass.wfjydl.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/techclass.wfjydl.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/techclass.wfjydl.com\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/techclass.wfjydl.com\/wp-json\/wp\/v2\/comments?post=18443"}],"version-history":[{"count":2,"href":"https:\/\/techclass.wfjydl.com\/wp-json\/wp\/v2\/posts\/18443\/revisions"}],"predecessor-version":[{"id":19887,"href":"https:\/\/techclass.wfjydl.com\/wp-json\/wp\/v2\/posts\/18443\/revisions\/19887"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/techclass.wfjydl.com\/wp-json\/wp\/v2\/media\/18478"}],"wp:attachment":[{"href":"https:\/\/techclass.wfjydl.com\/wp-json\/wp\/v2\/media?parent=18443"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/techclass.wfjydl.com\/wp-json\/wp\/v2\/categories?post=18443"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/techclass.wfjydl.com\/wp-json\/wp\/v2\/tags?post=18443"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}