{"id":11330,"date":"2023-08-23T15:53:59","date_gmt":"2023-08-23T07:53:59","guid":{"rendered":"http:\/\/www.szryc.com\/?p=11330"},"modified":"2023-08-23T15:53:59","modified_gmt":"2023-08-23T07:53:59","slug":"buck%e7%94%b5%e8%b7%af%e5%8e%9f%e7%90%86%e5%9b%be%e8%ae%b2%e8%a7%a3-buck%e7%94%b5%e8%b7%af%e7%9a%84%e6%bc%94%e5%8f%98%e8%bf%87%e7%a8%8b","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=11330","title":{"rendered":"buck\u7535\u8def\u539f\u7406\u56fe\u8bb2\u89e3 buck\u7535\u8def\u7684\u6f14\u53d8\u8fc7\u7a0b"},"content":{"rendered":"
buck\u7535\u8def\u76f8\u4fe1\u5f88\u591a\u4ece\u4e8b\u7535\u5b50<\/u>\u7c7b\u5de5\u4f5c\u7684\u670b\u53cb\u90fd\u542c\u8fc7\uff0c\u5b83\u8bf4\u767d\u4e86\u5c31\u662f\u4e2a\u76f4\u6d41\u964d\u538b\u7535\u8def\uff0c\u5728\u964d\u538b\u82af\u7247\u51fa\u6765\u4e4b\u524d\uff0c\u5b83\u7684\u51fa\u573a\u7387\u975e\u5e38\u9ad8\u4f46\u662f\u4ee5\u524d\u4ec5\u4ec5\u662f\u770b\u8fc7\u4ed6\uff0c\u4e0d\u61c2\u5b83\u662f\u600e\u6837\u6f14\u53d8\u8fc7\u6765\u7684\uff0c\u4eca\u5929\u65fa\u54e5\u548c\u5927\u5bb6\u4e00\u8d77\u5206\u6790\u5b66\u4e60\u4e0b\u5b83\u7684\u6f14\u53d8\u8fc7\u7a0b\u3002<\/p>\n \u5982\u4e0a\u56fe\uff0c\u5e94\u8be5\u662f\u964d\u538b\u7535\u8def\u91cc\u9762\u6700\u539f\u59cb\u7684\u964d\u538b\u65b9\u6cd5\uff0cVout=Vin*[R4\/(R3+R4)],\u73b0\u5728\u5f88\u591a\u91c7\u6837\u7535\u8def\u90fd\u662f\u4f7f\u7528\u6b64\u7535\u8def\uff0c\u8fd9\u79cd\u65b9\u867d\u7136\u7b80\u5355\uff0c\u4f46\u7f3a\u70b9\u662f\u663e\u800c\u6613\u89c1\u7684\uff0c\u5f53\u529f\u7387\u7a0d\u5fae\u5927\u4e00\u70b9\u65f6\uff0c\u7531\u4e8eR3\u548cR4\u662f\u4e32\u8054\u7684\uff0c\u56e0\u6b64\u5728R3\u4e0a\u7684\u635f\u8017\u4e0d\u5bb9\u5ffd\u89c6\uff0c\u6548\u7387\u975e\u5e38\u4f4e\u4e0b\uff0c\u56e0\u6b64\u5bf9\u6b64\u7535\u8def\u8fdb\u884c\u5347\u7ea7\u3002\u89c1\u4e0b\u56fe\u3002<\/p>\n \u901a\u8fc7\u53d8\u5f62\u4ee5\u540e\u7684\u7535\u8def\u56fe\u5982\u4e0a\uff0c\u4e4b\u524d\u7684\u7535\u963b<\/u>R3\u7684\u635f\u8017\u8f6c\u79fb\u5230\u4e09\u6781\u7ba1Q2\u4e0a\u6765\uff0c\u4f46\u662f\u7531\u4e8e\u662f\u4e09\u6781\u7ba1\u72ec\u81ea\u627f\u53d7\u8f93\u5165\u7535\u538b\u548c\u8f93\u51fa\u7535\u538b\uff0c\u56e0\u6b64\u635f\u8017\u4e5f\u5f88\u5927\uff0c\u6548\u7387\u6bd4\u8f83\u4f4e\uff0c\u73b0\u5728\u7684\u4e09\u6781\u7ba1\u662f\u5de5\u4f5c\u5728\u7ebf\u6027\u72b6\u6001\uff0c\u90a3\u4e48\u5c06\u5b83\u7684\u72b6\u6001\u8c03\u6574\u5230\u5f00\u5173\u72b6\u6001\uff0c\u662f\u4e0d\u662f\u5c31\u4f1a\u5927\u5927\u51cf\u5c0f\u635f\u8017\u5462,\u53ef\u4ee5\u4e00\u8bd5\uff0c\u7ee7\u7eed\u66f4\u65b0\u7535\u8def\u3002<\/p>\n \u8fd9\u4e2a\u662f\u4fe1\u53f7<\/u>\u5f00\u5173PWM\u8f93\u51fa\u7684\u4e00\u4e2a\u7535\u8def\uff0c\u5047\u8bbe\u8fd9\u4e2a\u7535\u8def\u5de5\u4f5c\u5468\u671f\u4e3aTs\uff0c\u5bfc\u901a\u7684\u65f6\u95f4\u662fTon,\u56e0\u6b64\u5360\u7a7a\u6bd4\u4e3aD=Ton\/Ts\uff0c\u8fd9\u79cd\u65b9\u5f0f\u5927\u5927\u51cf\u5c0f\u4e86\u635f\u8017\uff0c\u89e3\u51b3\u4e86\u4e00\u4e2a\u95ee\u9898\uff0c\u53c8\u6765\u4e00\u4e2a\u95ee\u9898\uff0c\u8fd9\u4e2a\u7535\u8def\u7684\u7f3a\u70b9\u5c31\u662f\uff0cVout\u7684\u8f93\u51fa\u9ad8\u5ea6\u4f9d\u8d56\u4e8e\u5f00\u5173\uff0c\u5bfc\u901a\u65f6Vout\u6709\u7535\u538b\uff0c\u4e0d\u5bfc\u901a\u65f6Vout\u6ca1\u7535\u538b\u3002\u4f46\u662f\u4f5c\u4e3a\u8d1f\u8f7d\uff0c\u5728\u8fd9\u4e00\u5757\u662f\u4e0d\u80fd\u63a5\u53d7\u7684\uff0c\u56e0\u6b64\u66f4\u65b0\u7535\u8def\u3002<\/p>\n \u5982\u56fe\uff0c\u56e0\u4e3a\u4e0a\u56fe\u5fc5\u987b\u8981\u6709\u7a33\u5b9a\u7684\u80fd\u91cf\u4f9b\u7ed9\u624d\u884c\u3002\u56e0\u6b64\u5c31\u8981\u60f3\u529e\u6cd5\u52a0\u5143\u4ef6\u6765\u4fdd\u8bc1\u7535\u538b\u4e0d\u4f1a\u7a81\u53d8\uff0c\u81ea\u7136\u800c\u7136\u7535\u5bb9<\/u>\u4f1a\u95ea\u4eae\u767b\u573a\uff0c\u6765\u4fdd\u8bc1\u5373\u4f7fQ2\u4e0d\u8f93\u51fa\u7535\u538b\u7684\u60c5\u51b5\u4e0b\uff0c\u4e5f\u662f\u901a\u8fc7\u81ea\u8eab\u7684\u50a8\u80fd\u6765\u91ca\u653e\u7535\u538b\uff0c\u4fdd\u8bc1\u8f93\u51fa\u7a33\u5b9a\u3002\u4f46\u662f\u5230\u8fd9\u4e00\u6b65\u4ecd\u7136\u4f1a\u6709\u95ee\u9898\uff0c\u56e0\u4e3a\u7535\u5bb9\u4e24\u7aef\u7684\u7535\u538b\u662f\u4e0d\u4f1a\u7a81\u53d8\u7684\uff0c\u56e0\u6b64\u5f53\u5f00\u5173S1\u95ed\u5408\u65f6\uff0c\u76f8\u5f53\u4e8e\u7535\u5bb9\u7535\u538b\u548c\u4e09\u6781\u7ba1\u7684\u8f93\u51fa\u7535\u538b\u53e0\u52a0\uff0c\u6b64\u65f6\u4e00\u5b9a\u4f1a\u9020\u6210\u7535\u8def\u4e2d\u4ea7\u751f\u4e00\u4e2a\u975e\u5e38\u5927\u7684\u51b2\u51fb\u7535\u6d41<\/u>\uff0c\u8fd8\u6709\u53ef\u80fd\u4f1a\u635f\u574f\u4e09\u6781\u7ba1Q2\uff0c\u56e0\u6b64\u7ee7\u7eed\u5347\u7ea7\u7535\u8def\u3002<\/p>\n \u5982\u56fe\uff0c\u5f53\u5728\u56fe\u4e2d\u52a0\u4e0a\u50a8\u80fd\u5143\u4ef6\u7535\u611fT1\u4ee5\u540e\uff0c\u7531\u4e8e\u7535\u611f\u4e24\u7aef\u7684\u7535\u6d41\u4e0d\u80fd\u7a81\u53d8\uff0c\u56e0\u6b64\u4e09\u6781\u7ba1Q2\u95ed\u5408\u65f6\u7684\u51b2\u51fb\u7535\u6d41\u5c31\u4f1a\u6307\u6570\u7ea7\u51cf\u5c0f\uff0c\u4ece\u800c\u907f\u514d\u4e86\u51b2\u51fb\u7535\u6d41\u7684\u70e6\u607c\uff0c\u6b64\u65f6\u53c8\u6709\u4e00\u4e2a\u65b0\u95ee\u9898\uff0c\u5f53\u4e09\u6781\u7ba1Q2\u65ad\u5f00\u65f6\uff0c\u7531\u4e8e\u7535\u611fT1\u4e0a\u7684\u7535\u6d41\u4e0d\u80fd\u7a81\u53d8\uff0c\u90a3\u4e48\u5c31\u4f1a\u4ea7\u751f\u4e00\u4e2a\u975e\u5e38\u5927\u7684\u7535\u538b\u5c16\u5cf0\uff0c\u6781\u6709\u53ef\u80fd\u4f1a\u635f\u574f\u4e09\u6781\u7ba1Q2\uff0c\u56e0\u6b64\u7535\u8def\u7ee7\u7eed\u5347\u7ea7\u3002<\/p>\n \u5347\u7ea7\u540e\u7684\u7535\u8def\u56fe\u5982\u4e0a\uff0c\u5f53\u52a0\u4e0a\u4e00\u4e2a\u7eed\u6d41\u4e8c\u6781\u7ba1<\/u>D1\u4ee5\u540e\uff0c\u5047\u8bbe\u4e09\u6781\u7ba1Q2\u7a81\u7136\u65ad\u5f00\uff0c\u90a3\u4e48\u7535\u611fT1\u4ea7\u751f\u7684\u80fd\u91cf\u5c31\u4f1a\u901a\u8fc7\u7eed\u6d41\u4e8c\u6781\u7ba1\u8fdb\u884c\u7eed\u6d41\u3002<\/p>\n \u5f53\u901a\u8fc7\u8fd9\u4e9b\u6b65\u9aa4\u4ee5\u540e\uff0c\u4f60\u5c31\u4f1a\u53d1\u73b0\uff0c\u4e00\u4e2a\u57fa\u7840\u7684buck\u7535\u8def\u5c31\u5f62\u6210\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":" buck\u7535\u8def\u76f8\u4fe1\u5f88\u591a\u4ece\u4e8b\u7535\u5b50\u7c7b\u5de5\u4f5c\u7684\u670b\u53cb\u90fd\u542c\u8fc7\uff0c\u5b83\u8bf4\u767d\u4e86\u5c31\u662f\u4e2a\u76f4\u6d41\u964d\u538b\u7535\u8def\uff0c\u5728\u964d\u538b\u82af\u7247\u51fa\u6765\u4e4b\u524d\uff0c\u5b83\u7684\u51fa\u573a\u7387\u975e\u5e38 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"_links":{"self":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/11330"}],"collection":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=11330"}],"version-history":[{"count":1,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/11330\/revisions"}],"predecessor-version":[{"id":11338,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/11330\/revisions\/11338"}],"wp:attachment":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=11330"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11330"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11330"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}