{"id":17654,"date":"2022-01-19T00:00:20","date_gmt":"2022-01-18T16:00:20","guid":{"rendered":"https:\/\/techclass.wfjydl.com\/?p=17654"},"modified":"2022-02-15T11:21:12","modified_gmt":"2022-02-15T03:21:12","slug":"%e7%ac%ac13%e7%af%87-emc%e6%a6%82%e8%bf%b0%ef%bc%881%ef%bc%89","status":"publish","type":"post","link":"https:\/\/techclass.wfjydl.com\/knowledge\/tech-info\/engineer\/emc-column\/10213","title":{"rendered":"\u7b2c13\u7bc7 EMC\u6982\u8ff0\uff081\uff09\u3000\u4ec0\u4e48\u662f\u7535\u78c1\u517c\u5bb9\u6027\uff08EMC\uff09\uff1f"},"content":{"rendered":"<div id=\"ttl-techinfo\" class=\"ttl-wrap\">\n<p>\u201c\u7535\u78c1\u517c\u5bb9\u6027\uff08EMC\uff09\u201d\u4e3b\u8981\u5206\u4e3a\u4e24\u79cd\uff0c\u4e00\u79cd\u662f\u8bbe\u5907\u672c\u8eab\u7684\u7535\u78c1\u566a\u58f0\u5bf9\u5176\u4ed6\u8bbe\u5907\u6216\u4eba\u4f53\u5e26\u6765\u7684\u5f71\u54cd\uff08\u7535\u78c1\u5e72\u6270\uff0cEMI\uff1aElectromagnetic Interference, Emission\uff09\uff0c\u53e6\u4e00\u79cd\u662f\u8bbe\u5907\u662f\u5426\u4f1a\u56e0\u6765\u81ea\u5916\u90e8\u7684\u7535\u78c1\u5e72\u6270\u800c\u53d1\u751f\u8bef\u52a8\u4f5c\uff08\u7535\u78c1\u654f\u611f\u6027EMS\uff1aElectromagnetic Susceptibility, Immunity\uff09\uff0c\u4e4b\u6240\u79f0\u4e3a\u201c\u7535\u78c1\u517c\u5bb9\u6027\u201d\uff0c\u662f\u7531\u4e8e\u4e3a\u4e86\u907f\u514d\u53d1\u751f\u6545\u969c\uff0c\u8fd9\u4e24\u65b9\u9762\u90fd\u8981\u517c\u987e\u3002<\/p>\n<\/div>\n<p>\u4ece\u7b2c13\u7bc7\u5f00\u59cb\uff0c\u5c06\u662f\u5927\u5bb6\u671f\u5f85\u5df2\u4e45\u7684\u5185\u5bb9\uff01\u6211\u4eec\u5c06\u5f00\u59cb\u7535\u78c1\u517c\u5bb9\u6027\uff08EMC\uff09\u4e2d\u7ea7\u7bc7\uff01\u4ece\u672c\u6587\u5f00\u59cb\uff0c\u6211\u60f3\u56f4\u7ed5\u201c\u7535\u78c1\u517c\u5bb9\u6027\uff08EMC\uff09\u201d\u505a\u4e00\u4e2a\u6df1\u5165\u63a2\u8ba8\u3002\u5e0c\u671b\u672c\u7cfb\u5217\u7684\u5185\u5bb9\u5bf9\u60a8\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n<p>\u672c\u6587\u7684\u91cd\u70b9\u662f\uff1a\u4ec0\u4e48\u662f\u7535\u78c1\u517c\u5bb9\u6027\uff08EMC\uff09\uff1f\u5f53\u7136\u8fd9\u4e5f\u662f\u4e3a\u4e86\u6e29\u4e60\u4e00\u4e0b\u76f8\u5e94\u7684\u5185\u5bb9\u3002\u5728\u521d\u7ea7\u7bc7\u7684<a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/tech-info\/engineer\/emc-column\/9261\">\u7b2c\uff11\u7bc7<\/a>\u4e2d\uff0c\u6709\u8fc7\u4ee5\u4e0b\u4ecb\u7ecd\uff1a<\/p>\n<p>\u201c\u7535\u78c1\u517c\u5bb9\u6027\uff08EMC\uff09\u201d\u4e3b\u8981\u5206\u4e3a\u4e24\u79cd\uff0c\u4e00\u79cd\u662f\u8bbe\u5907\u672c\u8eab\u7684\u7535\u78c1\u566a\u58f0\u5bf9\u5176\u4ed6\u8bbe\u5907\u6216\u4eba\u4f53\u5e26\u6765\u7684\u5f71\u54cd\uff08\u7535\u78c1\u5e72\u6270\uff0cEMI\uff1aElectromagnetic Interference, Emission\uff09\uff0c\u53e6\u4e00\u79cd\u662f\u8bbe\u5907\u662f\u5426\u4f1a\u56e0\u6765\u81ea\u5916\u90e8\u7684\u7535\u78c1\u5e72\u6270\u800c\u53d1\u751f\u8bef\u52a8\u4f5c\uff08\u7535\u78c1\u654f\u611f\u6027EMS\uff1aElectromagnetic Susceptibility, Immunity\uff09\uff0c\u4e4b\u6240\u79f0\u4e3a\u201c\u7535\u78c1\u517c\u5bb9\u6027\u201d\uff0c\u662f\u7531\u4e8e\u4e3a\u4e86\u907f\u514d\u53d1\u751f\u6545\u969c\uff0c\u8fd9\u4e24\u65b9\u9762\u90fd\u8981\u517c\u987e\u3002<\/p>\n<p>\u4ee5\u6587\u5b57\u7684\u5f62\u5f0f\u5199\u6210\u201c\u5b9a\u4e49\u201d\u662f\u8fd9\u6837\u7684\uff0c\u7406\u89e3\u8d77\u6765\u6709\u70b9\u96be\u662f\u5427\u3002\u4e0b\u9762\u6211\u5c06\u6d45\u663e\u6613\u61c2\u5730\u3001\u76f4\u89c2\u5730\u89e3\u91ca\u4e00\u4e0b\u3002\u6211\u5c06\u4ee5\u5927\u5bb6\u719f\u6089\u7684\u534a\u5bfc\u4f53\u96c6\u6210\u7535\u8def\uff08LSI\u3001IC\uff09\u4e3a\u4e3b\u89d2\u8fdb\u884c\u89e3\u8bf4\u3002<\/p>\n<p>\u9996\u5148\u662f\u7535\u78c1\u5e72\u6270\uff08EMI\u6216\u7535\u78c1\u53d1\u5c04\uff09\u3002\u5982\u4eca\uff0c\u5df2\u7ecf\u5f00\u53d1\u51fa\u5e76\u4e14\u5728\u552e\u7684LSI\u548cIC\u79cd\u7c7b\u7e41\u591a\u3002\u4e3a\u4e86\u4fbf\u4e8e\u8bf4\u660e\uff0c\u5927\u81f4\u5206\u7c7b\u5982\u4e0b\uff1a<\/p>\n<ul class=\"disc-none blog13\">\n<li>\u2460\u8001\u5f0f\u4e09\u7aef\u7535\u6e90\uff087805\u548c7905\u7b49\uff09\u548c\u4f4e\u9971\u548c\u7535\u6e90\uff08LDO\uff09\u7b49\u76f4\u6d41\u7535\u6e90\u76f8\u5173\u4ea7\u54c1\u3002\u8fd9\u4e9b\u4ea7\u54c1\u8981\u5904\u7406\u7684\u4fe1\u53f7\u662f\u76f4\u6d41\uff08DC\uff09\u7684\u3002<\/li>\n<li>\u2461\u5dee\u5206\u8fd0\u7b97\u653e\u5927\u5668\uff08\u8fd0\u7b97\u653e\u5927\u5668\uff09\u3001\u7535\u538b\u6bd4\u8f83\u5668\uff08\u6bd4\u8f83\u5668\uff09\u3001\u8bed\u97f3\u4fe1\u53f7\u5904\u7406\u7b49\u76f8\u5173\u7684\u4ea7\u54c1\u3002\u8981\u5904\u7406\u7684\u4fe1\u53f7\u662f\u57fa\u4e8e\u6b63\u5f26\u6ce2\u7684\u6a21\u62df\u4fe1\u53f7\u548c\u7ebf\u6027\u4fe1\u53f7\u3002<\/li>\n<li>\u2462\u5fae\u63a7\u5236\u5668\u3001\u5b58\u50a8\u5668\u3001\u903b\u8f91\u7b49\u76f8\u5173\u7684\u4ea7\u54c1\u3002\u8981\u5904\u7406\u7684\u4fe1\u53f7\u662f\u6570\u5b57\u4fe1\u53f7\u3002<\/li>\n<li>\u2463\u6700\u8fd1\u5e38\u7528\u7684\u5f00\u5173\u7535\u6e90\u548c\u7535\u8377\u6cf5\u7535\u6e90\u7b49\u7535\u6e90\u76f8\u5173\u7684\u4ea7\u54c1\uff1bLED\u9a71\u52a8\u5668\u3001LCD\u9a71\u52a8\u5668\u7b49\u663e\u793a\u76f8\u5173\u7684\u4ea7\u54c1\uff1bPWM\u7535\u673a\u9a71\u52a8\u5668\u7b49\u9a71\u52a8\u76f8\u5173\u7684\u4ea7\u54c1\u3002\u8fd9\u4e9bLSI\u548cIC\u662f\u6d89\u53ca\u5230\u5f00\u5173\u6280\u672f\u7684\u4ea7\u54c1\u3002<\/li>\n<\/ul>\n<p>\u5176\u4e2d\u2460\u548c\u2461\u4e0d\u4ea7\u751f\u7535\u78c1\u5e72\u6270\uff08EMI\uff09\uff0c\u2462\u548c\u2463\u4ea7\u751f\u7535\u78c1\u5e72\u6270\uff08EMI\uff09\u3002\u53ef\u4ee5\u7b80\u5355\u7684\u7406\u89e3\u4e3a\u6a21\u62dfLSI\u548c\u7ebf\u6027LSI\u4e0d\u4f1a\u4ea7\u751f\u7535\u78c1\u566a\u58f0\uff0c\u800c\u6570\u5b57LSI\u548c\u5f00\u5173LSI\u4f1a\u4ea7\u751f\u7535\u78c1\u566a\u58f0\uff0c\u8fd9\u6837\u8bf4\u53ef\u80fd\u66f4\u76f4\u89c2\u66f4\u6613\u61c2\u3002<\/p>\n<p>\u7531\u4e8e\u76f4\u6d41\u7535\u538b\u672c\u8eab\u6ca1\u6709\u57fa\u6ce2\u548c\u8c10\u6ce2\u5206\u91cf\uff0c\u6b63\u5f26\u6ce2\u4e2d\u7684\u9ad8\u6b21\u8c10\u6ce2\u5206\u91cf\uff08\u57fa\u6ce2\u7684N\u500d\u9891\u5206\u91cf\uff09\u5f88\u5c11\uff0c\u56e0\u6b64\u4e0d\u6613\u4ea7\u751f\u7535\u78c1\u566a\u58f0\u3002\u800c\u6570\u5b57LSI\u548c\u5f00\u5173LSI\u662f\u5904\u7406\u77e9\u5f62\u6ce2\uff08\u8109\u51b2\u6ce2\uff09\u7684\u4ea7\u54c1\uff0c\u56e0\u6b64\u4f1a\u4ea7\u751f\u6bd4\u5982\u57281GHz\uff08\u5343\u5146\u8d6b\u5179\uff09\u5de6\u53f3\u7684\u9ad8\u6b21\u8c10\u6ce2\u5206\u91cf\uff08\u4e3b\u8981\u662f\u5947\u6b21\u8c10\u6ce2\uff09\u3002\u8fd9\u5c31\u662f\u201c\u7535\u78c1\u5e72\u6270 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Series Resistance\uff1a\u7b49\u6548\u4e32\u8054\u7535\u963b\uff09\u548cESL\uff08Equivalent Series 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