{"id":4667,"date":"2017-08-10T10:00:15","date_gmt":"2017-08-10T01:00:15","guid":{"rendered":"http:\/\/micro.rohm.com\/cn\/techweb\/?p=4667"},"modified":"2022-09-16T15:23:59","modified_gmt":"2022-09-16T07:23:59","slug":"%e7%bb%9d%e7%bc%98%e5%9e%8b%e5%8f%8d%e6%bf%80%e5%bc%8f%e8%bd%ac%e6%8d%a2%e5%99%a8%e7%94%b5%e8%b7%af%e8%ae%be%e8%ae%a1%ef%bc%9aemi%e5%af%b9%e7%ad%96%e5%8f%8a%e8%be%93%e5%87%ba%e5%99%aa%e5%a3%b0","status":"publish","type":"post","link":"https:\/\/techclass.wfjydl.com\/knowledge\/acdc\/acdc_pwm\/acdc_pwm01\/1484","title":{"rendered":"\u7edd\u7f18\u578b\u53cd\u6fc0\u5f0f\u8f6c\u6362\u5668\u7535\u8def\u8bbe\u8ba1\uff1aEMI\u5bf9\u7b56\u53ca\u8f93\u51fa\u566a\u58f0\u5bf9\u7b56"},"content":{"rendered":"<p>\u672c\u9879\u5c31\u7535\u8def\u4e0a\u7684\u566a\u58f0\u5bf9\u7b56\u8fdb\u884c\u8bf4\u660e\u3002\u5f00\u5173\u7535\u6e90\u7684\u8bbe\u8ba1\u65f6\uff0c\u5fc5\u987b\u8fdb\u884c\u566a\u58f0\u7684\u8bc4\u4f30\u548c\u5bf9\u7b56\u3002<\/p>\n<p>\u9996\u5148\u7565\u4e3a\u91cd\u6e29\u4e0e\u566a\u58f0\u76f8\u5173\u7684\u672f\u8bed\u3002<\/p>\n<p><strong>\u30fbEMI\uff08Electro Magnetic Interference\uff09\uff1a\u7535\u78c1\u5e72\u6270<\/strong><br \/>\n\u7535\u6ce2\u548c\u9ad8\u9891\u7535\u78c1\u6ce2\u6210\u4e3a\u566a\u58f0\uff0c\u5f71\u54cd\u7535\u5b50\u8bbe\u5907\u7b49\uff0c\u6216\u662f\u4f1a\u9020\u6210\u5f71\u54cd\u7684\u7535\u78c1\u6ce2\u3002<br \/>\n\uff0d\u4f20\u5bfc\u566a\u58f0\uff1a\u7ecf\u7531\u7ebf\u7f06\u548c\u57fa\u677f\u914d\u7ebf\u4f20\u5bfc\u7684\u566a\u58f0<br \/>\n&gt; \u5dee\u6a21\uff08\u666e\u901a\u6a21\u5f0f\uff09\u566a\u58f0\uff1a\u53d1\u751f\u5728\u7535\u6e90\u7ebf\u4e4b\u95f4\uff0c\u4e14\u4f20\u9001\u65b9\u5411\u548c\u7535\u6d41\u76f8\u540c\u7684\u566a\u58f0<br \/>\n&gt; \u5171\u6a21\u566a\u58f0\uff1a\u900f\u8fc7\u91d1\u5c5e\u5916\u58f3\u7b49\uff0c\u7a7f\u8fc7\u6e38\u79bb\u7535\u5bb9\u7b49\uff0c\u56de\u5230\u4fe1\u53f7\u6e90\u5934\u7684\u566a\u58f0<br \/>\n\uff0d\u8f90\u5c04\u566a\u58f0\uff1a\u91ca\u653e\u5230\u7a7a\u6c14\u4e2d\u7684\u566a\u58f0<\/p>\n<p><strong>\u30fbEMS\uff08Electro Magnetic Susceptibility\uff09\uff1a\u7535\u78c1\u6297\u6270\u6027<\/strong><br \/>\n\u6307\u5373\u4f7f\u53d7\u5230\u7535\u78c1\u6ce2\u7684\u59a8\u788d\u3001\u5e72\u6270\uff08EMI\uff1a\u4f20\u5bfc\u566a\u58f0\u53ca\u8f90\u5c04\u566a\u58f0\uff09\u4e5f\u4e0d\u4f1a\u51fa\u73b0\u635f\u574f\u7684\u80fd\u529b\u3001\u8010\u53d7\u5ea6\u3002<\/p>\n<p><strong>\u30fbEMC\uff08Electro Magnetic Compatibility\uff09\uff1a\u7535\u78c1\u517c\u5bb9\u6027<\/strong><br \/>\nEMI\uff0bEMS\u3002\u8f90\u5c04\uff08Emission\uff1a\u653e\u51fa\uff09\u5bf9\u7b56\u548c\u6297\u6270\u6027\uff08Immunity\uff1a\u8010\u6027\uff09\u7684\u517c\u5bb9\u5bf9\u7b56\u3002<\/p>\n<p>EMI\u4ece\u8def\u5f84\u6765\u770b\uff0c\u5206\u6210\u4f20\u5bfc\u566a\u58f0\u548c\u8f90\u5c04\u566a\u58f0\uff0c\u4f20\u5bfc\u566a\u58f0\u6839\u636e\u4f20\u5bfc\u65b9\u5f0f\uff0c\u53c8\u53ef\u4ee5\u518d\u7ec6\u5206\u6210\u5dee\u52a8\u6a21\u5f0f\u566a\u58f0\u548c\u5171\u6a21\u566a\u58f0\u3002\u7c97\u7565\u6982\u8ff0\u4ee5\u638c\u63e1\u6b64\u7c7b\u6700\u57fa\u672c\u7684\u77e5\u8bc6\u3002<\/p>\n<p><strong>EMI\u5bf9\u7b56<\/strong><\/p>\n<p>\u5f00\u5173\u7535\u6e90\u7535\u8def\u7684EMI\u4f1a\u5f71\u54cd\u5176\u4ed6\u7535\u8def\u53ca\uff0c\u6240\u4ee5\u5fc5\u987b\u5b9e\u65bdEMI\u5bf9\u7b56\u3002\u57fa\u672c\u4e0a\uff0c\u5728\u5927\u7535\u6d41\u5f00\u5173\u8282\u70b9\u548c\u7ebf\u8def\uff0c\u589e\u52a0\u6574\u5408\u963b\u6297\u548c\u5177\u5907\u65c1\u8def\/\u8fc7\u6ee4\u529f\u80fd\u7684\u7535\u5bb9\u5668\u3001\u7535\u963b\/\u7535\u5bb9\u5668\u7535\u8def\u3002<\/p>\n<div class=\"fBox\">\n<div class=\"fl\" style=\"width: 380px;\">\n<p>1) C12\u3001R17\uff1a\u8f93\u51fa\u6574\u6d41\u4e8c\u6781\u7ba1\u589e\u52a0RC\u7f13\u51b2\u7535\u8def<br \/>\n\u548c\u8f93\u5165\u7f13\u51b2\u76f8\u540c\uff0c\u964d\u4f4eON\/OFF\u65f6\u4ea7\u751f\u7684\u5cf0\u6ce2\u3002\u5173\u4e8e\u8f93\u5165\u7f13\u51b2\u8bf7\u53c2\u7167<a href=\"\/knowledge\/acdc\/acdc_pwm\/acdc_pwm01\/1311\" target=\"_blank\" rel=\"noopener\">\u8fd9\u91cc<\/a>\u3002C12\u9009\u62e9500V 1000pF\u3001R17\u9009\u62e910\u03a9 1W\u5de6\u53f3\u3002<\/p>\n<p>2) C10\uff1a\u4e00\u6b21\u4fa7\u548c\u4e8c\u6b21\u4fa7\u95f4\u589e\u52a0Y-\u7535\u5bb9\u5668<br 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style=\"width: 380px;\">\n<p><strong>\u8f93\u51fa\u566a\u58f0\u5bf9\u7b56<\/strong><\/p>\n<p>\u4e0d\u7528\u8bf4\uff0c\u5f00\u5173\u7535\u6e90\u7684\u8f93\u51fa\u7535\u538b\u4e0a\u5b58\u5728\u7740\u53d6\u51b3\u4e8e\u5f00\u5173\u9891\u7387\u7684\u7eb9\u6ce2\uff0c\u4ee5\u53ca\u9ad8\u9891\u8c10\u6ce2\u3001\u7535\u611f\u548c\u7535\u5bb9\u5668\u6240\u5f15\u8d77\u7684\u566a\u58f0\u3002\u5f53\u8fd9\u4e9b\u566a\u58f0\u9020\u6210\u56f0\u6270\u65f6\uff0c\u53ef\u4ee5\u5728\u8f93\u51fa\u589e\u52a0LC\u6ee4\u6ce2\u5668\u6709\u6548\u89e3\u51b3\u8be5\u56f0\u6270\u3002<\/p>\n<p>\u4ee5\u7535\u611fL\u4e3a10\u03bcH\u3001C10\u4e3a10\u03bcF\uff5e100\u03bcF\u4f5c\u4e3a\u5f00\u59cb\u65f6\u6807\u51c6\u503c\uff0c\u4ed4\u7ec6\u89c2\u5bdf\u566a\u58f0\u540e\u518d\u52a0\u4ee5\u8c03\u6574\u3002<\/p>\n<\/div>\n<p class=\"fr\">\n\t<img loading=\"lazy\" decoding=\"async\" src=\"\/upload\/2017\/08\/14A_graf02.gif\" alt=\"14A_graf02\" width=\"300\" height=\"190\" class=\"alignnone size-full 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