{"id":18866,"date":"2022-01-31T10:07:53","date_gmt":"2022-01-31T02:07:53","guid":{"rendered":"https:\/\/www.paiqinano.com\/?p=18866"},"modified":"2022-01-18T15:53:50","modified_gmt":"2022-01-18T07:53:50","slug":"emi%e6%8a%91%e5%88%b6%e6%8a%80%e6%9c%af%e5%8a%a9%e5%8a%9b%e5%bc%80%e5%85%b3%e7%94%b5%e6%ba%90%e7%b3%bb%e7%bb%9f%e6%80%8e%e4%b9%88%e5%87%8f%e5%b0%91%e8%ae%be%e8%ae%a1%e5%99%aa%e9%9f%b3%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.paiqinano.com\/?p=18866","title":{"rendered":"EMI\u6291\u5236\u6280\u672f\u52a9\u529b\u5f00\u5173\u7535\u6e90\u7cfb\u7edf\u600e\u4e48\u51cf\u5c11\u8bbe\u8ba1\u566a\u97f3\uff1f"},"content":{"rendered":"

\n\t\t\u6587\u4e2d\u79d1\u5b66\u7814\u7a76\u76d1\u7ba1<\/u>\u5e72\u6270\u4fe1\u53f7\uff08EMI\uff09\u7684\u6807\u51c6\u548c\u8981\u6c42\uff0c\u53ca\u5176\u5f00\u5173\u7535\u6e90\u7535\u8def<\/u>\u9020\u6210\u7684\u566a\u97f3\u79cd\u7c7b\uff0c\u5e76\u7ed9\u4e88\u7f13\u89e3EMI\u7684\u57fa\u672c\u4e0a\u6307\u5f15\uff0c\u5305\u542b\u5b89\u88dd\u5728\u522b\u7684\u673a\u5668\u8bbe\u5907\u4e2d\u4ee5\u4f5c\u4e3a\u66f4\u9ad8\u7cfb\u7edf\u8f6f\u4ef6\u7684\u4e00\u90e8\u5206\uff0c\u6216\u8005\u4f5c\u4e3a\u72ec\u7acb\u7684\u8fd0\u7528\u3002<\/p>\n

\n\t\t\u7535\u6e90\u5f00\u5173<\/u>\u5f00\u5173\u7535\u6e90\u548cEMC<\/u>\u89c4\u8303<\/p>\n

\n\t\t\u5f00\u5173\u7535\u6e90\u7535\u8def\u662f\u4e00\u901a\u7528\u6027\u7684\u4e13\u4e1a\u672f\u8bed\uff0c\u53d9\u8ff0\u542b\u6709\u53ef\u5c06\u76f4\u6d41\u7535\u538b\u53d8\u6362\u4e3a\u4ea4\u6d41\u7535\u6d41\u7684\u5f00\u5173\u7535\u6e90\uff0c\u800c\u8fd9\u91cc\u53d8\u6362\u540e\u7684\u4ea4\u6d41\u7535\u6d41\u8fd8\u53ef\u518d\u8fdb\u4e00\u6b65\u89e3\u51b3\u53d8\u6210\u53e6\u4e00\u4e2a\u76f4\u6d41\u7535\u538b\u3002<\/p>\n

\n\t\t\u5f00\u5173\u7535\u6e90\u7535\u8def\u53ef\u4ee5\u5206\u6210\u6c9f\u901a\u4ea4\u6d41\u5bf9\u76f4\u6d41\u7a33\u538b\u7535\u6e90\uff08\u6c9f\u901a\u4ea4\u6d41\u2014\u952e\u5165\uff09\u6216\u76f4\u6d41\u7535\u5bf9\u76f4\u6d41\u7535\u8f6c\u5316\u5668\uff08\u76f4\u6d41\u7535\u952e\u5165\uff09\uff0c\u4e24\u8005\u90fd\u5177\u5907\u628a\u76f4\u6d41\u7535\u53d8\u6362\u4e3a\u6c9f\u901a\u4ea4\u6d41\u7684\u4f5c\u7528\uff0c\u4fbf\u4e8e\u66f4\u6539\u5de5\u4f5c\u7535\u538b\u3002\u5f00\u5173\u7535\u6e90\u7535\u8def\u56e0\u5176\u4e2d\u5728\u7684\u8bbe\u8ba1\u65b9\u6848\u7279\u6027\uff0c\u4f1a\u9020\u6210\u7531\u591a\u9891\u4fe1\u53f7\u6784\u6210\u7684\u5e72\u6270\u4fe1\u53f7\u3002<\/p>\n

\n\t\t\u76f4\u6d41\u7535\u5bf9\u6c9f\u901a\u4ea4\u6d41\u8f6c\u5316\u5668\u5c06\u952e\u5165\u76f4\u6d41\u7535\u538b\u8f6c\u6362\u4e3a\u53ef\u6839\u636e\u53d8\u7535\u5668\u53d8\u538b\u6216\u964d\u8840\u538b\u7684\u4ea4\u6d41\u7535\u6d41\u3002\u6c9f\u901a\u4ea4\u6d41\u5bf9\u76f4\u6d41\u7a33\u538b\u7535\u6e90\u8fd8\u53ef\u8fd0\u7528\u9ad8\u9891\u7535\u8def\u6765\u53d8\u6362\u5de5\u4f5c\u7535\u538b\u3002\u53ef\u662f\uff0c\u5728\u4efb\u610f\u4e00\u79cd\u72b6\u51b5\u4e2d\uff0c\u5167\u90e8\u4ea4\u6d41\u7535\u6d41\u5e76\u5e76\u4e0d\u662f\u7eaf\u6b63\u5f26\u6ce2\u5f62\uff0c\u800c\u5e38\u5e38\u662f\u53ef\u7531\u5085\u7acb\u53f6\u7ea7\u6570\u8868\u660e\u7684\u77e9\u5f62\u6846\u6ce2\uff0c\u7531\u5177\u5907\u8c10\u6ce2\u7535\u6d41\u6709\u5173\u5de5\u4f5c\u9891\u7387\u7684\u5f88\u591a\u6b63\u5f26\u6ce2\u5f62\u7684\u4ee3\u6570\u548c\uff08Algebrai<\/u>c Sum\uff09\u6784\u6210\u3002<\/p>\n

\n\t\t\u8fd9\u79cd\u591a\u9891\u4fe1\u53f7\u662f\u4f20\u8f93\u6563\u5c04\u548c\u8f90\u5c04\u6e90\u53d1\u9001\u7684\u6765\u6e90\u4e8e\uff0c\u4f1a\u5f71\u54cd\u5b89\u88dd\u5f00\u5173\u7535\u6e90\u7684\u673a\u5668\u8bbe\u5907\u53ca\u5468\u8fb9\u7684\u5de5\u4f5c\u9891\u7387\u6bd4\u8f83\u654f\u611f\u673a\u5668\u8bbe\u5907\u3002<\/p>\n

\n\t\t\u7535\u5b50\u5668\u4ef6<\/u>\u673a\u5668\u8bbe\u5907\u5f00\u53d1\u8bbe\u8ba1\u987b\u5408\u4e4e\u4e16\u754c\u5404\u56fdEMI\u89c4\u8303<\/p>\n

\n\t\t\u7ecf\u8fc7\u6709\u76ee\u7684\u6027\u7684\u53d1\u9001\u78c1\u573a\uff0c\u7535\u78c1\u8c31\u65e9\u5df2\u975e\u5e38\u5e7f\u6cdb\u5730\u8fd0\u7528\u4e8e\u5e7f\u64ad\u8282\u76ee\u3001\u901a\u8baf\u5668\u6750\u548c\u6570\u636e\u901a\u4fe1\u7b49\u884c\u4e1a\u3002\u4e3a\u7ef4\u62a4\u7535\u78c1\u8c31\u548c\u4fdd\u8bc1\u6240\u914d\u642d\u7684\u7535\u6c14\u8bbe\u5907\u7535\u5b50\u63a7\u5236\u7cfb\u7edf\u517c\u5bb9\u6a21\u5f0f\uff0c\u76d1\u7ba1\u90e8\u95e8\u65e9\u5df2\u5236\u8ba2\u7535\u5b50\u4ea7\u54c1\u4e2d\u4f20\u8f93\u548c\u8f90\u5c04\u6e90EMI\u7684\u64cd\u7eb5\u89c4\u8303\u3002<\/p>\n

\n\t\tCISPR 22\u662f\u6b27\u7f8e\u5730\u533a\u5728\u5176\u4e2d\u4e00\u4e2a\u5177\u4f53\u7684\u6280\u672f\u6807\u51c6\uff0c\u5f97\u5230\u6b27\u5171\u4f53\u4e2d\u5927\u90e8\u5206\u7684\u5730\u65b9\u9009\u7528\uff0c\u800c\u7f8e\u56fd\u901a\u4fe1\u8054\u5408\u4f1a\uff08FCC\uff09\u662f\u56fd\u5916\u7684\u76d1\u7ba1\u90e8\u95e8\u3002FCC\u7684\u7b2c15\u4e00\u90e8\u5206\u6807\u51c6\u5c06\u6570\u636e\u7535\u5b50\u4ea7\u54c1\u5206\u6210A\u7c7b\uff08\u7528\u4ee5\u5546\u4e1a\u670d\u52a1\u3001\u5de5\u4e1a\u751f\u4ea7\u6216\u8fd0\u8425\u81ea\u7136\u73af\u5883\uff09\u548cB\u7c7b\uff08\u7528\u4ee5\u5b9a\u5c45\u81ea\u7136\u73af\u5883\uff09\u3002\u56e0\u4e3aB\u7c7b\u673a\u5668\u8bbe\u5907\u5e03\u5c40\u5728\u5bb6\u5ead\u751f\u6d3b\u4e2d\u522b\u7684\u7535\u5b50\u4ea7\u54c1\u5468\u8fb9\u7684\u6982\u7387\u66f4\u9ad8\uff0c\u56e0\u800c\u5176\u53d1\u9001\uff08Emission\uff09\u89c4\u8303\u66f4\u52a0\u4e25\u82db\u3002<\/p>\n

\n\t\tCISPR 22\u653f\u7b56\u6cd5\u89c4\u5df2\u4e0eFCC\u89c4\u8303\u4e92\u76f8\u878d\u6d3d\uff0c\u9664\u5c11\u6570\u4e0d\u53ef\u6297\u529b\u4e8b\u4ef6\uff0c\u73b0\u53ef\u5bf9\u6570\u636e\u7684\u7535\u5b50\u4ea7\u54c1\u5f00\u5c55\u9a8c\u8bc1\u3002\u878d\u6d3d\u5316\u89c4\u5b9a\u4f20\u8f93\u6563\u5c04\u548c\u8f90\u5c04\u6e90\u53d1\u9001\u9009\u7528\u540c\u4e00\u89c4\u8303\u3002\u7531\u4e8eCISPR 22\u5bf91GHz\u4ee5\u4e0a\u7684\u5de5\u4f5c\u9891\u7387\u5e76\u6ca1\u6709\u8981\u6c42\u9650\u5236\u503c\uff0c\u56e0\u6b641GHz\u4ee5\u4e0a\u7684\u6d4b\u91cf\u52a1\u5fc5\u5408\u4e4eFCC\u6807\u51c6\u548c\u536b\u751f\u9632\u62a4\u8ddd\u79bb\u89c4\u5b9a\uff0c\u800cFCC\u7b2c15\u4e00\u90e8\u5206\u548cCISPR 22\u8981\u6c42\u5de5\u4f5c\u9891\u7387\u7684\u4f20\u8f93\/\u8f90\u5c04\u6e90\u53d1\u9001\u9650\u5236\u503c\uff0c\u5f7c\u6b64\u4e4b\u95f4\u4ec5\u76f8\u8ddd\u51e0dB\u7f62\u4e86\u3002<\/p>\n

\n\t\tEMC\u68c0\u6d4b<\/u>\u548c\u5408\u4e4e\u6027\u987b\u9075\u5faaANSI\u6807\u51c6<\/p>\n

\n\t\t\u7535\u78c1\u517c\u5bb9\u6d4b\u8bd5\u6027\uff08EMC\uff09\u68c0\u6d4b\u548c\u5408\u4e4e\u6027\uff08Compliance\uff09\u987b\u4f9d\u7167ANSI\u89c4\u8303\u754c\u5b9a\u7684\u6d4b\u8bd5\u4ee3\u7801\u5b9e\u884c\uff0c\u8be5\u89c4\u8303\u5e76\u4e0d\u5305\u62ec\u4e0e\u901a\u7528\u6027\u6216\u7279\u5b9a\u5546\u54c1\u76f8\u5173\u7684\u4f20\u8f93\u548c\u8f90\u5c04\u6e90\u53d1\u9001\u9650\u5236\u503c\u3002<\/p>\n

\n\t\t\u7279\u522b\u6ce8\u610f\u7684\u662f\uff0c\u68c0\u6d4b\u662f\u5bf9\u4e8e\u5168\u90e8\u7cfb\u7edf\u8f6f\u4ef6\uff0c\u5e76\u4e0d\u662f\u4ec5\u5bf9\u4e8e\u7535\u6e90\u6a21\u5757\uff0c\u5373\u4f7f\u5916\u754c\u5f00\u5173\u7535\u6e90\u4f5c\u4e3a\u5355\u72ec\u5546\u54c1\u7b26\u5408\u8981\u6c42\uff0c\u4e5f\u5fc5\u987b\u4e0e\u5168\u90e8\u7ec8\u7aef\u8bbe\u5907\u7cfb\u7edf\u8f6f\u4ef6\u4e00\u8d77\u53c2\u4e0e\u68c0\u6d4b\u3002<\/p>\n

\n\t\tEMI\/EMC\u57fa\u672c\u4e0a\u6765\u6e90\u4e8e\u548c\u6709\u5173\u5de5\u4f5c\u9891\u7387<\/p>\n

\n\t\tEMI\u6700\u5148\u53ef\u5206\u6210\u77ac\u6001\u7684\u8981\u7d20\u6216\u6301\u7eed\u7684\u5f71\u54cd\u3002\u5f53\u6e90\u53d1\u9001\u5ef6\u8fdf\u65f6\u95f4\u77ed\u7684\u52a8\u80fd\u5355\u8109\u51b2\u800c\u4e0d\u662f\u6301\u7eed\u4fe1\u53f7\u65f6\uff0c\u4fbf\u4f1a\u9020\u6210\u77ac\u6001EMI\u3002\u6e90\u5305\u542b\u7535\u6e90\u5f00\u5173\u7535\u6c14\u8bbe\u5907\u8def\u7ebf\uff0c\u53ca\u5176\u9759\u7535\u653e\u7535\uff08ESD\uff09\u3001\u7535\u95ea\u53ca\u7535\u7f06\u7ebf\u6d6a\u6d8c\u4fdd\u62a4\u5668\u3002\u7535\u673a<\/u>\u3001\u67f4\u6cb9\u53d1\u7535\u673a\u70b9\u706b\u88c5\u7f6e\u53ca\u6301\u7eed\u6570\u5b57\u7535\u8def\u8bbe\u8ba1<\/u>\u7535\u6e90\u5f00\u5173\u53ef\u4ee5\u4fc3\u4f7f\u77ac\u6001EMI\u53cd\u590d\u4ea7\u751f\u3002<\/p>\n

\n\t\t\u6301\u7eed\u5f71\u54cd\u53ef\u4ee5\u4f9d\u636e\u9891\u6bb5\u8fdb\u4e00\u6b65\u7ec6\u5206\u5316\uff0c\u51e010Hz\u81f320kHz\u5de5\u4f5c\u9891\u7387\u88ab\u5f52\u5230\u58f0\u9891<\/u>\uff0c\u800c\u5fae\u6ce2\u5c04\u9891<\/u>\u5f71\u54cd\uff08RF<\/u>I\uff09\u4ea7\u751f\u572820kHz\u53ca\u4ee5\u4e0a\u9891\u6bb5\u3002<\/p>\n

\n\t\tEMI\u85d5\u5408<\/u><\/p>\n

\n\t\t\u85d5\u5408\u6839\u636e\u4f20\u8f93\u3001\u8f90\u5c04\u6e90\u6216\u4f20\u611f\u800c\u9020\u6210\u3002\u4f20\u8f93\u7684EMI\u53d1\u9001\u53ef\u8fbe\u523030MHz\u3002\u5de5\u4f5c\u9891\u7387\u5c0f\u4e8e5MHz\u4e0b\u5217\u7684\u7535\u6d41\u91cf<\/u>\uff0c\u5927\u90e8\u5206\u662f\u5dee\u6a21\uff08Differenti<\/u>al Mode\uff09\u7535\u6d41\u91cf\uff0c\u800c\u9ad8\u8fc75MHz\u7684\u7535\u6d41\u91cf\u901a\u5e38\u662f\u5171\u6a21\uff08Common Mode\uff09\u7535\u6d41\u91cf\uff08\u56fe1\uff09\u3002<\/p>\n

\n\t\"EMI\u6291\u5236\u6280\u672f\u52a9\u529b\u5f00\u5173\u7535\u6e90\u7cfb\u7edf\u51cf\u5c11\u8bbe\u8ba1\u566a\u97f3\"<\/p>\n

\n\t\t\u56fe1 \u5dee\u6a21\u548c\u5171\u6a21\u7684\u754c\u5b9a<\/p>\n

\n\t\t\u5dee\u6a21\u7535\u6d41\u91cf\u662f\u4e00\u4e24\u6761\u7ebf\u5bf9\uff08Two Wire Pair\uff09\u4e0a\u7684\u9884\u4f30\u7535\u6d41\u91cf\uff0c\u4e5f\u5c31\u662f\u79bb\u53bb\u8def\u7ebf\u6e90\u7aef\u548c\u8fd4\u56de\u8def\u7ebf\u56de\u5230\u7aef\u7535\u6d41\u91cf\u3002\u6d4b\u8bd5\u5de5\u7a0b\u5e08\u53ef\u4ee5\u4f9d\u636e\u76f8\u5bf9\u6027\u7279\u5b9a\u5b9a\u4f4d\u70b9\u6765\u7cbe\u786e\u6d4b\u91cf\u6bcf\u6761\u8def\u7ebf\u7684\u566a\u97f3\uff0c\u5dee\u6a21\u7535\u6d41\u91cf\u6839\u636e\u7535\u6e90\u63d2\u5934\uff0c\u5728\u5f00\u5173\u7535\u6e90\u7535\u8def\u548c\u5b83\u7684\u6e90\u6216\u8d1f\u8377\u4e2d\u95f4\u6d41\u52a8\u6027\uff0c\u800c\u8fd9\u79cd\u7535\u6d41\u91cf\u4e0e\u8def\u9762\u4e0d\u76f8\u5e72\u3002<\/p>\n

\n\t\t\u5171\u6a21\u7535\u6d41\u91cf\u6839\u636e\u7535\u6e90\u63d2\u5934\u5728\u540c\u4e00\u65b9\u5411\u51fa\u5165\u5f00\u5173\u7535\u6e90\u7535\u8def\uff0c\u5e76\u6839\u636e\u8def\u9762\u8fd4\u56de\u5b83\u7684\u6e90\u3002\u5728\u5f88\u591a\u72b6\u51b5\u4e0b\uff0c\u5171\u6a21\u566a\u97f3\u662f\u6839\u636e\u7535\u6e90\u7535\u8def<\/u>\u4e2d\u7684\u751f\u5b58\u7535\u5bb9\u5668<\/u>\u6765\u4f20\u8f93\u7684\uff0c\u4f46\u4e5f\u53ef\u6d41\u8fc7\u673a\u58f3\u548c\u8def\u9762\u95f4\u7684\u7535\u5bb9\u5668\u3002<\/p>\n

\n\t\t\u5f53\u6e90\u548c\u4fe1\u53f7\u63a5\u6536\u5668\uff08\u53d7\u5f71\u54cd\u673a\u5668\u8bbe\u5907\uff09\u505a\u4e3a\u65e0\u7ebf\u65e0\u7ebf\u5929\u7ebf\u5e94\u7528\u65f6\uff0c\u4fbf\u4f1a\u4ea7\u751f\u8f90\u5c04\u6e90\u85d5\u5408\u3002\u8fd9\u65f6\uff0c\u6e90\u8f90\u5c04\u6e90\u51fa\u7684\u65e0\u7ebf\u7535\u6ce2\u4f1a\u8d8a\u8fc7\u5bbd\u9614\u5ba4\u5185\u7a7a\u95f4\uff0c\u5728\u6e90\u548c\u53d7\u5f71\u54cd\u673a\u5668\u8bbe\u5907\u4e2d\u95f4\u6563\u64ad\uff0c\u5e76\u88ab\u53d7\u5f71\u54cd\u673a\u5668\u8bbe\u5907\u6240\u63a5\u53d7\u3002<\/p>\n

\n\t\t\u76f8\u5bf9\u6027\u4f20\u8f93\u85d5\u5408\u6216\u8f90\u5c04\u6e90\u85d5\u5408\u800c\u8a00\uff0c\u7535\u611f\u5668<\/u>\u85d5\u5408\uff08\u7535\u6216\u78c1\u85d5\u5408\uff09\u8f83\u4e3a\u7f55\u89c1\uff0c\u7535\u611f\u8026\u5408\u4f1a\u51fa\u73b0\u5728\u6e90\u548c\u4fe1\u53f7\u63a5\u6536\u5668\u4e2d\u95f4\u95f4\u8ddd\u8f83\u77ed\u4e4b\u5904\u3002<\/p>\n

\n\t\t\u5f532\u4e2a\u90bb\u8fd1\u7535\u5bfc\u4f53\u95f4\u5b58\u6709\u8f6c\u53d8\u7684\u9759\u7535\u573a\uff0c\u9020\u6210\u7a7a\u9699\u5904\u5de5\u4f5c\u7535\u538b\u4ea7\u751f\u53d8\u5316\uff0c\u4fbf\u4f1a\u4ea7\u751f\u7535\u611f\u5668\u6d4b\uff1b\u800c\u5f532\u4e2a\u5e73\u884c\u9762\u7535\u5bfc\u4f53\u4e2d\u95f4\u6709\u4e00\u8f6c\u53d8\u7684\u7535\u78c1\u573a\uff0c\u9020\u6210\u987a\u7740\u63a5\u53d7\u7535\u5bfc\u4f53\u53d1\u751f\u5de5\u4f5c\u7535\u538b\u8f6c\u53d8\uff0c\u5219\u4f1a\u4ea7\u751f\u78c1\u611f\u6d4b\u3002<\/p>\n

\n\t\t\u4e00\u822c\u800c\u8a00\uff0c\u8981\u6e05\u6670\u641e\u6e05\u695aEMI\u95ee\u9898\u7684\u8868\u73b0\uff0c\u9700\u8981\u4ece\u7535\u529b\u5b66\u4e0a\u53ca\u4f5c\u7528\u5e38\u89c1\u6545\u969c\u7684\u5b9e\u9645\u610f\u4e49\u4e0a\u53bb\u638c\u63e1\u5e72\u6270\u4fe1\u53f7\u548c\u4fe1\u53f7\u3001\u62b5\u8fbe\u53d7\u5f71\u54cd\u673a\u5668\u8bbe\u5907\u7684\u85d5\u5408\u9014\u5f84\u53ca\u53d7\u5f71\u54cd\u673a\u5668\u8bbe\u5907\u7684\u7279\u70b9\u3002\u5728\u5b9e\u8d28\u4e0a\uff0c\u56e0\u4e3a\u5371\u5bb3\u6240\u81f4\u4f7f\u7684\u95ee\u9898\u901a\u5e38\u662f\u5e94\u7528\u7edf\u8ba1\u5b66\uff0c\u56e0\u800c\uff0c\u5371\u5bb3\u8868\u73b0\u548c\u89c4\u8303\u5236\u8ba2\u7684\u5f88\u591a\u5de5\u4f5c\u4e2d\uff0c\u5168\u662f\u5efa\u6839\u636e\u5c06\u6bc1\u706d\u6027EMI\u4ea7\u751f\u7684\u6982\u7387\u51cf\u5c11\u5230\u53ef\u4ee5\u63a5\u7eb3\u7684\u6c34\u5e73\uff0c\u800c\u4e0d\u662f\u4fdd\u8bc1\u6e05\u9664EMI\u3002<\/p>\n

\n\t\t\u4f20\u8f93EMI<\/p>\n

\n\t\t\u4e3a\u4e86\u66f4\u597d\u5730\u5408\u7406\u5730\u8ba9\u4f20\u8f93\u53d1\u9001\u7f13\u89e3\u51fa\u6765\uff0c\u52a1\u5fc5\u5404\u81ea\u5904\u7406\u5dee\u6a21\u566a\u97f3\u548c\u5171\u6a21\u566a\u97f3\u7684\u95ee\u9898\u3002<\/p>\n

\n\t\t\u5728\u5f00\u5173\u7535\u6e90\u7535\u8def\u7535\u7f06\u7ebf\u548c\u56de\u5230\u7ebf\u4e2d\u95f4\u7acb\u5373\u8054\u63a5\u65c1\u901a\u7535\u529b\u7535\u5bb9\u5668<\/u>\u7684\u4f5c\u6cd5\uff0c\u901a\u5e38\u80fd\u6291\u5236\u5dee\u6a21\u566a\u97f3\uff08\u56fe2\uff09\u3002\u5750\u843d\u4e8e\u5f00\u5173\u7535\u6e90\u7535\u8def\u952e\u5165\u6216\u5bfc\u51fa\u5904\u7684\u7535\u7f06\u7ebf\u5f88\u6709\u53ef\u80fd\u5fc5\u987b\u8fc7\u6ee4\uff0c\u4e3a\u5b8c\u6210\u6700\u597d\u5b9e\u9645\u6548\u679c\uff0c\u8fd9\u79cd\u8def\u7ebf\u4e0a\u7684\u65c1\u8def\u7535\u5bb9\u5668\u8981\u653e\u5230\u566a\u97f3\u9020\u6210\u6e90\u7684\u5c3e\u7aef\u5468\u8fb9\u3002<\/p>\n

\n\t\"EMI\u6291\u5236\u6280\u672f\u52a9\u529b\u5f00\u5173\u7535\u6e90\u7cfb\u7edf\u51cf\u5c11\u8bbe\u8ba1\u566a\u97f3\"<\/p>\n

\n\t\t\u56fe2 \u5dee\u6a21\u8fc7\u6ee4\u5668\u5e73\u9762\u56fe<\/p>\n

\n\t\t\u5728\u566a\u97f3\u9020\u6210\u6e90\u7684\u57fa\u672c\u4e0a\u7535\u6e90\u5f00\u5173\u5de5\u4f5c\u9891\u7387\u5468\u8fb9\uff0c\u4f4e\u9891\u7387\u5dee\u6a21\u7535\u6d41\u91cf\u7684\u635f\u8017\u89c4\u5b9a\u8981\u6709\u8f83\u9ad8\u7684\u65c1\u8def\u7535\u5bb9\u503c\uff0c\u8fd9\u4ee3\u8868\u7740\u9676\u74f7\u7535\u5bb9\u5c31\u4e0d\u9002\u5408\u300222\u5fae\u6cd5\u62c9\uff08\u03bcF\uff09\u4e0b\u5217\u7684\u9676\u74f7\u7535\u5bb9\u53ea\u5408\u9002\u8fc7\u8651\u5f00\u5173\u7535\u6e90\u7535\u8def\u7684\u8f83\u4f4e\u538b\u5bfc\u51fa\uff0c\u4f46\u4e0d\u9002\u5b9c\u8fd9\u4e9b\u6709100\u5b89\u57f9\uff08V\uff09\u6d6a\u6d8c\u4fdd\u62a4\u5668\u7684\u5f00\u5173\u7535\u6e90\u3002\u8fd9\u65f6\u5e94\u9009\u7528\u989d\u5b9a\u503c\u7535\u5bb9\u5668\u548c\u5de5\u4f5c\u7535\u538b\u8f83\u9ad8\u7684\u7535\u89e3\u7535\u5bb9\u3002<\/p>\n

\n\t\t\u4e3a\u4e0e\u6b64\u540c\u65f6\u5408\u9002\u635f\u8017\u8f83\u4f4e\u7684\u57fa\u672c\u4e0a\u7535\u6e90\u5f00\u5173\u5de5\u4f5c\u9891\u7387\u53ca\u8f83\u9ad8\u8c10\u6ce2\u7535\u6d41\u6b21\u6570\u7684\u5dee\u6a21\u7535\u6d41\u91cf\uff0c\u5dee\u6a21\u952e\u5165\u8fc7\u6ee4\u5668<\/u>\u901a\u5e38\u662f\u7531\u7535\u89e3\u7535\u5bb9\u548c\u9676\u74f7\u7535\u5bb9\u6240\u6784\u6210\u3002<\/p>\n

\n\t\t\u63d0\u5347\u4e00\u4e2a\u4e0e\u4e3b\u5f00\u5173\u7535\u6e90\u4e32\u8fde\u7684\u611f\u5e94\u5668<\/u>\uff0c\u4e0e\u65c1\u8def\u7535\u5bb9\u5668\u4e00\u8d77\u4ea7\u751f–\u5355\u6781L-C\u5dee\u6a21\u5e26\u901a\u6ee4\u6ce2\u5668\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u6291\u6b62\u5dee\u6a21\u7535\u6d41\u91cf\u3002<\/p>\n

\n\t\t\u53e6\u4e00\u65b9\u9762\uff0c\u5728\u5f00\u5173\u7535\u6e90\u7535\u8def\u7684\u6bcf\u6839\u7535\u7f06\u7ebf\u548c\u8def\u9762\u76f8\u4e92\u8fde\u63a5\u65c1\u8def\u7535\u5bb9\u5668\uff0c\u4fbf\u53ef\u9ad8\u6548\u6291\u6b62\u5171\u6a21\u4f20\u5bfc\u7535\u6d41\uff0c\u8fd9\u79cd\u7535\u7f06\u7ebf\u53ef\u4ee5\u5750\u843d\u4e8e\u5f00\u5173\u7535\u6e90\u7535\u8def\u7684\u952e\u5165\u6216\u5bfc\u51fa\u5904\u3002<\/p>\n

\n\t\t\u901a\u8fc7\u63d0\u5347\u4e00\u5bf9\u4e0e\u6bcf\u4e00\u4e2a\u4e3b\u5f00\u5173\u7535\u6e90\u4e32\u8fde\u7684\u85d5\u5408\u627c\u6d41\uff08Choke\uff09\u611f\u5e94\u5668\uff0c\u53ef\u8fdb\u4e00\u6b65\u6291\u6b62\u5171\u6a21\u7535\u6d41\u91cf\uff08\u56fe3\uff09\u3002\u85d5\u5408\u627c\u6d41\u611f\u5e94\u5668\u7684\u9ad8\u7279\u6027\u963b\u6297\u9a71\u4f7f\u5171\u6a21\u7535\u6d41\u91cf\u7a7f\u8fc7\u65c1\u8def\u7535\u5bb9\u5668\u3002<\/p>\n

\n\t\"EMI\u6291\u5236\u6280\u672f\u52a9\u529b\u5f00\u5173\u7535\u6e90\u7cfb\u7edf\u51cf\u5c11\u8bbe\u8ba1\u566a\u97f3\"<\/p>\n

\n\t\t\u56fe3 \u5171\u6a21\u8fc7\u6ee4\u5668\u5e73\u9762\u56fe<\/p>\n

\n\t\tRF\u7279\u6027\u963b\u6297<\/u>\u53ca\u65e0\u7ebf\u5929\u7ebf\u73af\u57ce\u8def\u603b\u9762\u79ef\u964d\u4f4e\u80fd\u6291\u5236\u8f90\u5c04\u6e90EMI<\/p>\n

\n\t\t\u51cf\u5c11\u5fae\u6ce2\u5c04\u9891\uff08RF\uff09\u7279\u6027\u963b\u6297\u53ca\u964d\u4f4e\u65e0\u7ebf\u5929\u7ebf\u73af\u57ce\u8def\u603b\u9762\u79ef\u53ef\u4ee5\u6291\u6b62\u8f90\u5c04\u6e90\u51fa\u7684EMI\uff08\u56fe4\uff09\u3002\u5c06\u7535\u7f06\u7ebf\u548c\u5176\u56de\u5230\u7ebf\u8def\u6240\u4ea7\u751f\u7684\u95ed\u5408\u5f0f\u73af\u57ce\u8def\u603b\u9762\u79ef\u51cf\u5230\u6700\u5c11\uff0c\u4fbf\u53ef\u8fbe\u5230\u6b64\u4e00\u603b\u4f53\u76ee\u6807\u3002<\/p>\n

\n\t\"EMI\u6291\u5236\u6280\u672f\u52a9\u529b\u5f00\u5173\u7535\u6e90\u7cfb\u7edf\u51cf\u5c11\u8bbe\u8ba1\u566a\u97f3\"<\/p>\n

\n\t\t\u56fe4 \u53d8\u5c0f\u65e0\u7ebf\u5929\u7ebf\u73af\u57ce\u8def\u603b\u9762\u79ef\u4ee5\u51cf\u5c11\u8f90\u5c04\u6e90\u53d1\u9001<\/p>\n

\n\t\t\u5c06\u5370\u5237\u7ebf\u8def\u677f<\/u>\u8ff9\u7ebf\u7684\u603b\u5bbd\u5c3d\u91cf\u5730\u53d8\u5927\uff0c\u5e76\u5c06\u5b83\u4e0e\u5176\u8bf4\u56de\u5230\u7ebf\u8def\u5e76\u63a5\u8054\u63a5\uff0c\u4fbf\u53ef\u4ee5\u5c06\u8ff9\u7ebf\u7684\u7535\u611f\u5668\u964d\u81f3\u6700\u5c11\u3002\u4e00\u6837\u5730\uff0c\u56e0\u4e3a\u7ebf\u73af\uff08Wire Loop\uff09\u7684\u7279\u6027\u963b\u6297\u4e0e\u5176\u8bf4\u603b\u9762\u79ef\u6210\u5360\u6bd4\uff0c\u56e0\u6b64\u53d8\u5c0f\u7535\u7f06\u7ebf\u4e0e\u5176\u8bf4\u56de\u5230\u7ebf\u8def\u4e2d\u95f4\u7684\u603b\u9762\u79ef\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u51cf\u5c11\u5176\u7279\u6027\u963b\u6297\u3002<\/p>\n

\n\t\t\u5728\u53cc\u7247\u5370\u5237\u7ebf\u8def\u677f\u5185\uff0c\u5c06\u90bb\u8fd1\u5370\u5237\u7ebf\u8def\u677f\u5c42\u4e0a\u7684\u7535\u7f06\u7ebf\u4e0e\u56de\u5230\u7ebf\u8def\u8fd9\u4e8c\u8005\u4e2d\u7684\u4e00\u4e2a\u653e\u5230\u53e6\u4e00\u4e2a\u4e0a\u8fb9\uff0c\u4fbf\u53ef\u5c06\u7535\u7f06\u7ebf\u4e0e\u56de\u5230\u7ebf\u8def\u95f4\u7684\u603b\u9762\u79ef\u5408\u7406\u5730\u53d8\u5c0f\u3002\u53d8\u5c0f\u7535\u7f06\u7ebf\u4ee5\u53ca\u56de\u5230\u7ebf\u8def\u95f4\u7684\u73af\u57ce\u8def\u603b\u9762\u79ef\uff0c\u4e0d\u4f46\u51cf\u5c11RF\u7279\u6027\u963b\u6297\uff0c\u5e76\u4e14\u56e0\u4e3a\u73af\u57ce\u8def\u603b\u9762\u79ef\u8d8a\u5c0f\uff0c\u9020\u6210\u7684\u78c1\u573a\u4e5f\u8d8a\u4f4e\uff0c\u8fd8\u4f1a\u7ee7\u7eed\u9650\u5b9a\u65e0\u7ebf\u5929\u7ebf\u7684\u5b9e\u6548\u6027\u3002<\/p>\n

\n\t\t\u9664\u6b64\u4e4b\u5916\uff0c\u5750\u843d\u4e8e\u5370\u5237\u7ebf\u8def\u677f\u5916\u8868\u5c42\u7684\u63a5\u5730\u8d28\u6784\u9020\u53ef\u660e\u663e\u5730\u6291\u6b62\u8f90\u5c04\u6e90EMI\uff0c\u5c24\u5176\u662f\u7acb\u5373\u5750\u843d\u4e8e\u566a\u97f3\u9020\u6210\u6e90\u4e0b\u8fb9\u3002<\/p>\n

\n\t\t\u4e3a\u8fdb\u4e00\u6b65\u51cf\u5c11\u8f90\u5c04\u6e90\u566a\u97f3\uff0c\u53ef\u4ee5\u9009\u7528\u4e0d\u9508\u94a2\u5c4f\u853d\u6389\u5c06\u566a\u97f3\u9020\u6210\u6e90\u653e\u5230\u63a5\u5730\u88c5\u7f6e\u7684\u5bfc\u7535\u6027\u673a\u58f3\u5185\uff0c\u5e76\u6839\u636e\u7ba1\u9053\u8fc7\u6ee4\u88c5\u7f6e\uff08In-line Filter\uff09\u4e0e\u6d01\u51c0\u7684\u73af\u5883\u56e0\u7d20\u4ecb\u63a5\u3002\u5171\u6a21\u65c1\u8def\u7535\u5bb9\u5668\u4e5f\u53ef\u4ee5\u56de\u5230\u5bfc\u7535\u6027\u673a\u58f3\u4e0a\u7684\u63a5\u5730\u88c5\u7f6e\u3002<\/p>\n

\n\t\t\u7cfb\u7edf\u8f6f\u4ef6\u7ea7EMI\u7f13\u89e3\u6280\u672f\u6027<\/p>\n

\n\t\t\u5c3d\u7ba1\u5927\u90e8\u5206\u7684\u5f00\u5173\u7535\u6e90\u7535\u8def\u4f1a\u8bbe\u8ba1\u65b9\u6848\u6210\u5355\u72ec\u7684\u63a7\u5236\u6a21\u5757\u4ee5\u8fbe\u5230\u53ef\u7528\u7684EMI\u89c4\u8303\uff0c\u53ef\u662f\u4e3a\u4e86\u80fd\u8fbe\u5230\u7ba1\u63a7\u89c4\u8303\u7684\u89c4\u5b9a\uff0c\u7cfb\u7edf\u8f6f\u4ef6\u81ea\u8eab\u7684\u8bbe\u8ba1\u65b9\u6848\u4e5f\u9700\u8981\u5c06\u5176\u6240\u9020\u6210\u7684EMI\u964d\u5230\u81f3\u5c11\u3002\u5728\u7cfb\u7edf\u5f00\u53d1\u65f6\u8981\u8003\u8651\u5230\u6291\u6b62EMI\u7684\u7279\u6b8a\u5730\u533a\uff0c\u5305\u542b\u8baf\u53f7\u7ebf\u3001\u5370\u5237\u7ebf\u8def\u677f\uff08PCB<\/u>\uff09\u548c\u56fa\u4f53\u90e8\u4ef6\u3002<\/p>\n

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