{"id":3247,"date":"2016-09-26T00:00:20","date_gmt":"2016-09-25T15:00:20","guid":{"rendered":"http:\/\/localhost\/hantai\/?p=3247"},"modified":"2022-04-11T13:40:11","modified_gmt":"2022-04-11T05:40:11","slug":"%e9%9b%bb%e6%84%9f%e7%9a%84%e9%81%b8%e6%93%87","status":"publish","type":"post","link":"https:\/\/techclass.wfjydl.com\/knowledge\/dcdc\/dcdc_pwm\/dcdc_pwm02\/2244","title":{"rendered":"\u7535\u611f\u7684\u9009\u5b9a"},"content":{"rendered":"

\u5728\u8bbe\u8ba1\u964d\u538b\u578bDC\/DC\u8f6c\u6362\u5668\u65f6\uff0c\u7535\u611f\u7684\u9009\u62e9\u5f88\u91cd\u8981\u3002\u6027\u80fd\u6216\u7279\u6027\u89c6\u5176\u9009\u62e9\u800c\u6709\u6781\u5927\u7684\u5f71\u54cd\u3002\u7535\u611f\u7684\u9009\u62e9\u6b65\u9aa4\u6216\u7535\u611f\u503c\u7b49\u7684\u8ba1\u7b97\u65b9\u6cd5\u57fa\u672c\u4e0a\u6807\u793a\u4e8e\u5229\u7528\u7535\u6e90IC\u7684\u6280\u672f\u89c4\u683c\u3002<\/p>\n

\u7535\u611f\u7684\u9009\u5b9a\u6b65\u9aa4<\/strong><\/p>\n

\u9996\u5148\uff0c\u4ecb\u7ecd\u7535\u611f\u9009\u5b9a\u7684\u6b65\u9aa4\u3002<\/p>\n

\n

1\uff09\u8ba1\u7b97\u5fc5\u8981\u7684\u7535\u611f\u503cL<\/p>\n

2\uff09\u8ba1\u7b97\u6d41\u5411\u7535\u611f\u7684\u6700\u5927\u7535\u6d41\uff08\u8f93\u51fa\u7535\u6d41\uff0b1\/2\u7eb9\u6ce2\u7535\u6d41\uff09<\/p>\n

3\uff09\u6839\u636e\u5df2\u8ba1\u7b97\u7684L\u503c\uff08\u6216\u8fd1\u4f3c\uff09\u9009\u62e9\u5df2\u8ba1\u7b97\u7535\u611f\u9971\u548c\u7535\u6d41\u7684\u6700\u5927\u7535\u6d41\u4ee5\u4e0a\u7684\u7535\u611f
\n     \u203b\u5728\u77ed\u8def\u6216\u77ac\u6001\u72b6\u6001\u4e0b\u8ba1\u7b97\u51fa\u53ef\u80fd\u4f1a\u6d41\u51fa\u7684\u6700\u5927\u503c\u4ee5\u4e0a\u7684\u7535\u6d41\uff0c
        \u56e0\u6b64\u6709\u4ee5\u6700\u5927\u5f00\u5173\u7535\u6d41\u4e3a\u57fa\u7840\u6765\u9009\u62e9\u7684\u65b9\u6cd5<\/p>\n<\/div>\n

\u57fa\u672c\u4e0a\u6839\u636e\u8ba1\u7b97\u5e76\u8003\u8651\u4f59\u91cf\u540e\u505a\u51b3\u5b9a\u3002\u4f59\u91cf\u7684\u6c42\u53d6\u6cd5\u57fa\u4e8e\u516c\u53f8\u7684\u8bbe\u8ba1\u89c4\u5219\u6216\u7ecf\u9a8c\u6cd5\u5219\u3002<\/p>\n

1\uff09\u7535\u611f\u503c\u7684\u8ba1\u7b97
\n\u9996\u5148\uff0c\u6839\u636e\u4ee5\u4e0b\u516c\u5f0f\u8ba1\u7b97\u7535\u611f\u503c\u3002
\n\"\u7535\u611f\u503c\u7684\u8ba1\u7b97\"
\n2\uff09\u7535\u611f\u6700\u5927\u7535\u6d41\u7684\u8ba1\u7b97
\n\u63a5\u7740\uff0c\u6839\u636e\u4ee5\u4e0b\u516c\u5f0f\u8ba1\u7b97\u7535\u611f\u7684\u6700\u5927\u7535\u6d41\u3002
\n\"\u7535\u611f\u6700\u5927\u7535\u6d41\u7684\u8ba1\u7b97\"<\/p>\n

\u4ece\u516c\u5f0f\u548c\u7535\u6d41\u6ce2\u5f62\u53ef\u77e5\uff0cILPEAK<\/sub>\u503c\u4e3a\u0394IL<\/sub>\u76841\/2\u52a0IOUT<\/sub>\u7684\u503c\u3002
\n\u6839\u636e\u5df2\u8ba1\u7b97\u7684\u7535\u611f\u503c\u548c\u7535\u611f\u7684\u6700\u5927\u7535\u6d41\u9009\u62e9\u8fd1\u4f3c\u7684\u7535\u611f\u503c\u4e14\u9971\u548c\u7535\u6d41\u5728\u6700\u5927\u7535\u6d41\u4ee5\u4e0a\u7684\u7535\u611f\u3002\u4ee5\u4e0b\u4e3a\u9009\u62e9\u4f8b\u3002<\/p>\n

\u7535\u611f\u7684\u9009\u5b9a\u4f8b<\/strong><\/p>\n

   \u6761\u4ef6\uff1aVIN<\/sub> = 12V \u3001VOUT<\/sub> = 3.3V\u3001IOUT<\/sub> = 2A\u3001r = 0.3\u3001f SW<\/sub> = 380kHz
\n\"\u7535\u611f\u7684\u9009\u5b9a\u4f8b\"\/<\/p>\n

\u6839\u636e\u4e0a\u8ff0\u7ed3\u679c\uff0c\u9971\u548c\u7535\u6d412.3A\u4ee5\u4e0a\u768410\u03bcH\u7535\u611f\u6210\u4e3a\u51fa\u53d1\u70b9\u3002\u4e4b\u6240\u4ee5\u79f0\u4e3a\u51fa\u53d1\u70b9\uff0c\u662f\u56e0\u4e3a\u6b64\u8ba1\u7b97\u975e\u7edd\u5bf9\u6027\uff0c\u5728\u8003\u8651\u77ed\u8def\u6216\u77ac\u6001\u72b6\u6001\u7684\u60c5\u51b5\u7b49\u6709\u53ef\u80fd\u5fc5\u987b\u53d8\u66f4\u3002<\/p>\n

\u4f7f\u7535\u611f\u503c\u53d8\u5316\u7684\u7535\u611f\u7535\u6d41<\/strong><\/p>\n

\u5728\u8fd9\u91cc\uff0c\u4e3a\u52a0\u6df1\u5bf9\u7535\u611f\u5de5\u4f5c\u7684\u7406\u89e3\uff0c\u8fdb\u4e00\u6b65\u8bf4\u660e\u7535\u611f\u503c\u53d8\u5316\u65f6\u7535\u611f\u7535\u6d41\u5982\u4f55\u53d8\u5316\u7684\u60c5\u5f62\u3002\u4e0b\u56fe\u8868\u793a\u5728\u76f8\u540c\u5de5\u4f5c\u6761\u4ef6\u4e0b\u5c06\u7535\u611f\u503c\u8bbe\u4e3a0.4\u03bcH\u30011\u03bcH\u30012.2\u03bcH\u65f6ILPEAK<\/sub>\u3002<\/p>\n

\"\u611f\u503c\u53d8\u5316\u65f6\u7535\u611f\u7535\u6d41\u5982\u4f55\u53d8\u5316\"<\/p>\n

\u4ece\u516c\u5f0f\u4e5f\u53ef\u5f97\u77e5\uff0c\u5f53\u7535\u611f\u503cL\u53d8\u5c0f\u65f6\uff0cILPEAK<\/sub>\u4f1a\u5897\u52a0\uff0c\u53ef\u4ee5\u83b7\u5f97\u8bb8\u591a\u76f4\u6d41\u53e0\u52a0\u7535\u6d41\u3002\u4e0d\u8fc7\uff0c\u901a\u8fc7ILPEAK<\/sub>\u5897\u52a0\uff0c\u6709\u5fc5\u8981\u5bb9\u8bb8\u66f4\u591a\u7684\u76f4\u6d41\u53e0\u52a0\u7535\u6d41\u3002\u800c\u7535\u611f\u503c\u53d8\u5927\u65f6\u5219\u76f8\u53cd\uff0c\u5fc5\u987b\u63a2\u8ba8\u76f8\u4f4d\u8865\u507f\u7684\u76f8\u5173\u4e8b\u5b9c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728\u8bbe\u8ba1\u964d\u538b\u578bDC\/DC\u8f6c\u6362\u5668\u65f6\uff0c\u7535\u611f\u7684\u9009\u62e9\u5f88\u91cd\u8981\u3002\u6027\u80fd\u6216\u7279\u6027\u89c6\u5176\u9009\u62e9\u800c\u6709\u6781\u5927\u7684\u5f71\u54cd\u3002\u7535\u611f\u7684\u9009\u62e9\u6b65\u9aa4\u6216\u7535\u611f\u503c\u7b49\u7684\u8ba1\u7b97\u65b9\u6cd5\u57fa\u672c\u4e0a\u6807\u793a\u4e8e\u5229\u7528\u7535\u6e90IC\u7684\u6280\u672f\u89c4\u683c\u3002 \u7535\u611f\u7684\u9009\u5b9a\u6b65\u9aa4 \u9996\u5148\uff0c\u4ecb\u7ecd\u7535\u611f\u9009\u5b9a\u7684\u6b65\u9aa4\u3002 1\uff09\u8ba1\u7b97\u5fc5\u8981\u7684\u7535\u611f\u503c […]","protected":false},"author":1,"featured_media":17064,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[42],"tags":[8,27,130,147,148,149],"class_list":["post-3247","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dcdc_pwm02","tag-8","tag-27","tag-dcdc","tag-147","tag-148","tag-149"],"acf":[],"wps_subtitle":"","_links":{"self":[{"href":"https:\/\/techclass.wfjydl.com\/wp-json\/wp\/v2\/posts\/3247","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/techclass.wfjydl.com\/wp-json\/wp\/v2\/comments?post=3247"}],"version-history":[{"count":12,"href":"https:\/\/techclass.wfjydl.com\/wp-json\/wp\/v2\/posts\/3247\/revisions"}],"predecessor-version":[{"id":10371,"href":"https:\/\/techclass.wfjydl.com\/wp-json\/wp\/v2\/posts\/3247\/revisions\/10371"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/techclass.wfjydl.com\/wp-json\/wp\/v2\/media\/17064"}],"wp:attachment":[{"href":"https:\/\/techclass.wfjydl.com\/wp-json\/wp\/v2\/media?parent=3247"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/techclass.wfjydl.com\/wp-json\/wp\/v2\/categories?post=3247"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/techclass.wfjydl.com\/wp-json\/wp\/v2\/tags?post=3247"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}