{"id":2504,"date":"2019-05-27T08:47:13","date_gmt":"2019-05-27T08:47:13","guid":{"rendered":""},"modified":"2019-05-27T16:47:38","modified_gmt":"2019-05-27T08:47:38","slug":"%e5%bc%80%e5%85%b3%e7%94%b5%e6%ba%90%e7%9a%84emi%e4%bb%bf%e7%9c%9f%e8%ae%be%e8%ae%a1","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=2504","title":{"rendered":"\u5f00\u5173\u7535\u6e90\u7684EMI\u4eff\u771f\u8bbe\u8ba1"},"content":{"rendered":"

\n\t1\u3000\u5f15\u8a00<\/p>\n

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\n\t <\/div>\n

\n\t2\u3000\u5f00\u5173\u7535\u6e90EMI\u7279\u70b9\u53ca\u5206\u7c7b<\/p>\n

\n\t\u5bf9\u5f00\u5173\u7535\u6e90\u4f20\u5bfc\u7535\u78c1\u5e72\u6270\u8fdb\u884c\u9884\u6d4b\uff0c\u9996\u5148\u9700\u8981\u660e\u786e\u5176\u4ea7\u751f\u673a\u7406\u4ee5\u53ca\u566a\u58f0\u6e90\u7684\u5404\u9879\u7279\u6027\u3002\u7531\u4e8e\u529f\u7387\u5f00\u5173\u7ba1\u7684\u9ad8\u901f\u5f00\u5173\u52a8\u4f5c\uff0c\u5176\u7535\u538b\u548c\u7535\u6d41<\/u>\u53d8\u5316\u7387\u90fd\u5f88\u9ad8\uff0c\u4e0a\u5347\u6cbf\u548c\u4e0b\u964d\u6cbf\u5305\u542b\u4e86\u4e30\u5bcc\u7684\u9ad8\u6b21\u8c10\u6ce2\uff0c\u6240\u4ee5\u4ea7\u751f\u7684\u7535\u78c1\u5e72\u6270\u5f3a\u5ea6\u5927\uff1b\u5f00\u5173\u7535\u6e90\u7684\u7535\u78c1\u5e72\u6270\u4e3b\u8981\u96c6\u4e2d\u5728\u4e8c\u6781\u7ba1<\/u>\u3001\u529f\u7387\u5f00\u5173\u5668\u4ef6\u4ee5\u53ca\u4e0e\u5176\u76f8\u8fde\u7684\u6563\u70ed\u5668\u548c\u9ad8\u9891\u53d8\u538b\u5668<\/u>\u9644\u8fd1\uff1b\u7531\u4e8e\u5f00\u5173\u7ba1\u7684\u5f00\u5173\u9891\u7387\u4ece\u51e0\u5341kHz\u5230\u51e0MHz\uff0c\u6240\u4ee5\u5f00\u5173\u7535\u6e90\u7684\u5e72\u6270\u5f62\u5f0f\u4e3b\u8981\u662f\u4f20\u5bfc\u5e72\u6270\u548c\u8fd1\u573a\u5e72\u6270\u3002\u5176\u4e2d\uff0c\u4f20\u5bfc\u5e72\u6270\u4f1a\u901a\u8fc7\u566a\u58f0\u4f20\u64ad\u8def\u5f84\u6ce8\u5165\u7535\u7f51\uff0c\u5e72\u6270\u63a5\u5165\u7535\u7f51\u7684\u5176\u4ed6\u8bbe\u5907\u3002<\/p>\n

\n\t\u5f00\u5173\u7535\u6e90\u4f20\u5bfc\u5e72\u6270\u5206\u4e3a2\u5927\u7c7b\u3002<\/p>\n

\n\t1\uff09\u5dee\u6a21\uff08DM\uff09\u5e72\u6270\u3002DM \u566a\u58f0\u4e3b\u8981\u7531di\/dt\u5f15\u8d77\uff0c\u901a\u8fc7\u5bc4\u751f\u7535\u611f<\/u>\uff0c\u7535\u963b<\/u>\u5728\u706b\u7ebf\u548c\u96f6\u7ebf\u4e4b\u95f4\u7684\u56de\u8def\u4e2d\u4f20\u64ad\uff0c\u5728\u4e24\u6839\u7ebf\u4e4b\u95f4\u4ea7\u751f\u7535\u6d41Idm\uff0c\u4e0d\u4e0e\u5730\u7ebf\u6784\u6210\u56de\u8def\u3002<\/p>\n

\n\t2\uff09\u5171\u6a21\uff08CM\uff09\u5e72\u6270\u3002CM \u566a\u58f0\u4e3b\u8981\u7531dv\/dt\u5f15\u8d77\uff0c\u901a\u8fc7PCB<\/u>\u7684\u6742\u6563\u7535\u5bb9<\/u>\u5728\u4e24\u6761\u7535\u6e90\u7ebf\u4e0e\u5730\u7684\u56de\u8def\u4e2d\u4f20\u64ad\uff0c\u5e72\u6270\u4fb5\u5165\u7ebf\u8def\u548c\u5730\u4e4b\u95f4\uff0c\u5e72\u6270\u7535\u6d41\u5728\u4e24\u6761\u7ebf\u4e0a\u5404\u6d41\u8fc7\u4e8c\u5206\u4e4b\u4e00\uff0c\u4ee5\u5730\u4e3a\u516c\u5171\u56de\u8def\uff1b\u5728\u5b9e\u9645\u7535\u8def<\/u>\u4e2d\u7531\u4e8e\u7ebf\u8def\u963b\u6297<\/u>\u4e0d\u5e73\u8861\uff0c\u4f7f\u5171\u6a21\u4fe1\u53f7\u5e72\u6270\u4f1a\u8f6c\u5316\u4e3a\u4e0d\u6613\u6d88\u9664\u7684\u4e32\u6270\u5e72\u6270\u3002<\/p>\n

\n\t3\u3000\u5f00\u5173\u7535\u6e90EMI\u7684\u4eff\u771f\u5206\u6790<\/p>\n

\n\t\u4ece\u7406\u8bba\u4e0a\u6765\u8bb2\uff0c\u65e0\u8bba\u662f\u65f6\u57df\u4eff\u771f\u8fd8\u662f\u9891\u57df\u4eff\u771f\uff0c\u53ea\u8981\u5efa\u7acb\u4e86\u5408\u7406\u7684\u5206\u6790\u6a21\u578b\uff0c\u5176\u4eff\u771f\u7ed3\u679c\u90fd\u80fd\u6b63\u786e\u53cd\u6620\u7cfb\u7edf\u7684EMI\u91cf\u5316\u7a0b\u5ea6\u3002<\/p>\n

\n\t\u65f6\u57df\u4eff\u771f\u65b9\u6cd5\u9700\u8981\u5efa\u7acb\u53d8\u6362\u5668\u4e2d\u5305\u542b\u6240\u6709\u5143\u4ef6\u53c2\u6570\u7684\u7535\u8def\u6a21\u578b\uff0c\u5229\u7528PSPI<\/u>CE\u6216Saber\u8f6f\u4ef6\u8fdb\u884c\u4eff\u771f\u5206\u6790\uff0c\u4f7f\u7528\u5feb\u901f\u5085\u91cc\u53f6\u5206\u6790\u5de5\u5177\u5f97\u5230EMI\u7684\u9891\u8c31\u6ce2\u5f62\uff0c\u8fd9\u79cd\u65b9\u6cd5\u5728DM \u566a\u58f0\u7684\u5206\u6790\u4e2d\u5df2\u7ecf\u5f97\u5230\u4e86\u9a8c\u8bc1\u3002\u7136\u800c\u5f00\u5173\u7535\u6e90\u4e2d\u7684\u975e\u7ebf\u6027\u5143\u4ef6\u5982MOSFET<\/u>\uff0cIGBT<\/u> \u7b49\u534a\u5bfc\u4f53\u5668\u4ef6\uff0c\u5176\u975e\u7ebf\u6027\u7279\u6027\u548c\u6742\u6563\u53c2\u6570\u4f7f\u6a21\u578b\u975e\u5e38\u590d\u6742\uff0c\u540c\u65f6\u5f00\u5173\u7535\u6e90\u7535\u8def\u5de5\u4f5c\u65f6\u5176\u7535\u8def\u62d3\u6251\u7ed3\u6784\u4e0d\u65ad\u6539\u53d8\uff0c\u5bfc\u81f4\u4e86\u4eff\u771f\u4e2d\u51fa\u73b0\u4e0d\u6536\u655b\u7684\u95ee\u9898\u3002\u5728\u7814\u7a76CM \u566a\u58f0\u65f6\uff0c\u5fc5\u987b\u5305\u542b\u6240\u6709\u7684\u5bc4\u751f\u5143\u4ef6\u53c2\u6570\uff0c\u7531\u4e8e\u5bc4\u751f\u53c2\u6570\u7684\u5f71\u54cd\uff0cFFT<\/u>\u7ed3\u679c\u548c\u5b9e\u9a8c\u7ed3\u679c\u5f88\u96be\u543b\u5408\uff1b\u5f00\u5173\u529f\u7387\u53d8\u6362\u5668\u901a\u5e38\u5de5\u4f5c\u5728\u5f88\u5927\u7684\u65f6\u95f4\u5e38\u6570\u8303\u56f4\u5185\uff0c\u4e3b\u8981\u5305\u62ec3\u7ec4\u65f6\u95f4\u5e38\u6570\uff1a\u4e0e\u8f93\u51fa\u7aef\u7684\u57fa\u672c\u9891\u7387\u6709\u5173\u7684\u65f6\u95f4\u5e38\u6570\uff08\u51e0\u5341ms\uff09\uff1b\u4e0e\u5f00\u5173\u5143\u4ef6\u7684\u5f00\u5173\u9891\u7387\u6709\u5173\u7684\u65f6\u95f4\u5e38\u6570\uff08\u51e0\u5341μ\uff53\uff09\uff1b\u4e0e\u5f00\u5173\u5143\u4ef6\u5bfc\u901a\u6216\u5173\u65ad\u65f6\u7684\u4e0a\u5347\u65f6\u95f4\u548c\u4e0b\u964d\u65f6\u95f4\u6709\u5173\u7684\u65f6\u95f4\u5e38\u6570\uff08\u51e0ns\uff09\u3002<\/p>\n

\n\t\u6b63\u56e0\u5982\u6b64\uff0c\u5728\u65f6\u57df\u4eff\u771f\u4e2d\uff0c\u5fc5\u987b\u4f7f\u7528\u975e\u5e38\u5c0f\u7684\u8ba1\u7b97\u6b65\u957f\uff0c\u5e76\u4e14\u9700\u8981\u7528\u5f88\u957f\u65f6\u95f4\u624d\u80fd\u5b8c\u6210\u8ba1\u7b97\uff1b\u53e6\u5916\uff0c\u65f6\u57df\u65b9\u6cd5\u5f97\u5230\u7684\u7ed3\u679c\u5f80\u5f80\u4e0d\u80fd\u6e05\u6670\u5730\u5206\u6790\u7535\u8def\u4e2d\u5404\u4e2a\u53d8\u91cf\u5bf9\u5e72\u6270\u7684\u5f71\u54cd\uff0c\u4e0d\u80fd\u6df1\u5c42\u89e3\u91ca\u5f00\u5173\u7535\u6e90\u7684EMI\u884c\u4e3a\uff0c\u800c\u4e14\u7f3a\u4e4f\u5bf9EMI\u673a\u7406\u7684\u5224\u65ad\uff0c\u4e0d\u80fd\u4e3a\u964d\u4f4eEMI\u7ed9\u51fa\u660e\u786e\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n

\n\t\u9891\u57df\u4eff\u771f\u662f\u57fa\u4e8e\u566a\u58f0\u6e90\u548c\u4f20\u64ad\u9014\u5f84\u963b\u6297\u6a21\u578b\u57fa\u7840\u4e0a\u7684\u5206\u6790\u65b9\u6cd5\u3002\u5229\u7528LISN\u4e3a\u566a\u58f0\u6e90\u63d0\u4f9b\u6807\u51c6\u8d1f\u8f7d\u963b\u6297\u3002\u5982\u56fe1\u6240\u793a\uff0c\u4eceLISN\u770b\u8fc7\u53bb\uff0c\u6574\u4e2a\u7cfb\u7edf\u53ef\u4ee5\u7b80\u5316\u6210\u566a\u58f0\u6e90\u3001\u566a\u58f0\u8def\u5f84\u548c\u566a\u58f0\u63a5\u6536\u5668\uff08LISN\uff09\u3002\u9891\u57df\u65b9\u6cd5\u53ef\u4ee5\u5927\u5927\u964d\u4f4e\u4eff\u771f\u8ba1\u7b97\u7684\u65f6\u95f4\uff0c\u4e00\u822c\u4e0d\u4f1a\u51fa\u73b0\u8ba1\u7b97\u7ed3\u679c\u4e0d\u6536\u655b\u7684\u60c5\u51b5\u3002<\/p>\n

\n\t\"\u5f00\u5173\u7535\u6e90\u7684EMI\u4eff\u771f\u8bbe\u8ba1\"<\/p>\n

\n\t\u56fe1\u3000\u566a\u58f0\u6e90\u4e0e\u4f20\u64ad\u8def\u5f84\u6982\u5ff5<\/p>\n

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\n\t\u5bf9\u5f00\u5173\u7535\u6e90\u8fdb\u884c\u9891\u57df\u4eff\u771f\uff0c\u9996\u5148\u8981\u5efa\u7acb\u5f00\u5173\u7535\u6e90\u7684\u9891\u57df\u4eff\u771f\u6a21\u578b\u3002\u5f00\u5173\u7535\u6e90EMI\u9891\u57df\u9884\u6d4b\u7684\u91cd\u70b9\u662f\u5bf9\u566a\u58f0\u8def\u5f84\u7684\u5efa\u6a21\uff0c\u5176\u4e2d\u5305\u62ec\uff1a\u65e0\u6e90\u5668\u4ef6\u7684\u9ad8\u9891\u6a21\u578b\uff1bPCB\u53ca\u7ed3\u6784\u5bc4\u751f\u53c2\u6570\u7684\u62bd\u53d6\u3002<\/p>\n

\n\t\u5728\u8003\u8651\u65e0\u6e90\u5668\u4ef6\u3001PCB\u53ca\u7ed3\u6784\u5bc4\u751f\u53c2\u6570\u7684\u57fa\u7840\u4e0a\uff0c\u5efa\u7acb\u5f00\u5173\u7535\u6e90\u96c6\u4e2d\u53c2\u6570\u7684\u7535\u8def\u6a21\u578b\uff0c\u53ef\u4ee5\u901a\u8fc7\u8ba1\u7b97\u6216\u4eff\u771f\u5f97\u5230\u8be5\u7535\u8def\u7684\u963b\u6297\uff0c\u8c10\u632f\u70b9\u7b49\uff0c\u4ece\u800c\u4e3a\u964d\u4f4eEMI\u63d0\u4f9b\u6709\u529b\u7684\u4f9d\u636e\u3002<\/p>\n

\n\t\u7531\u4e8e\u5dee\u6a21\u566a\u58f0\u548c\u5171\u6a21\u566a\u58f0\u7684\u4f20\u64ad\u8def\u5f84\u4e0d\u540c\uff0c\u6709\u5fc5\u8981\u5bf9DM \u4f20\u64ad\u8def\u5f84\u548cCM \u4f20\u64ad\u8def\u5f84\u5206\u522b\u5efa\u6a21\u3002\u8fd9\u6837\u53ef\u4ee5\u66f4\u597d\u5730\u5206\u6790\u5404\u79cd\u5e72\u6270\u7684\u7279\u70b9\uff0c\u800c\u4e14\u8fd8\u53ef\u4ee5\u4e3a\u8bbe\u8ba1\u6ee4\u6ce2\u5668<\/u>\u63d0\u4f9b\u6709\u529b\u7684\u4f9d\u636e\u3002<\/p>\n

\n\t4.1\u3000\u566a\u58f0\u6e90\u7684\u6a21\u578b\u5efa\u7acb<\/p>\n

\n\t\u7531\u4e8e\u9700\u8981\u5206\u522b\u5bf9DM \u566a\u58f0\u548cCM \u566a\u58f0\u8fdb\u884c\u5206\u6790\uff0c\u6240\u4ee5\u5bf9DM \u566a\u58f0\u6e90\u548cCM \u566a\u58f0\u6e90\u4e5f\u9700\u8981\u5206\u522b\u5efa\u6a21\u3002M.Nave\u5728\u6587\u732e\uff3b3\uff3d\u4e2d\u63d0\u51fa\u4f7f\u7528\u7535\u6d41\u6e90\u4f5c\u4e3aDM \u566a\u58f0\u6e90\uff0c\u4f7f\u7528\u7535\u538b\u6e90\u4f5c\u4e3aCM \u566a\u58f0\u6e90\u7684\u65b9\u6cd5\uff0c\u5c31\u662f\u56e0\u4e3aDM \u566a\u58f0\u4e3b\u8981\u7531di\/dt\u5f15\u8d77\uff0c\u800cCM \u566a\u58f0\u5219\u4e3b\u8981\u7531dv\/dt\u5f15\u8d77\u3002\u6587\u732e\uff3b4\uff3d\u5728\u6b64\u57fa\u7840\u4e0a\u5bf9CM \u566a\u58f0\u6e90\u8fdb\u884c\u4e86\u6539\u8fdb\uff0c\u8003\u8651\u4e86\u7535\u538b\u8fc7\u51b2\u548c\u4e0b\u51b2\uff0c\u5e76\u4e14\u5728\u7ebf\u8def\u963b\u6297\u8fd1\u4f3c\u5e73\u8861\u7684\u60c5\u51b5\u4e0b\uff0c\u5229\u7528DM \u7535\u6d41\u6e90\u548c\u4e00\u4e2a\u7535\u538b\u6e90\u6765\u8868\u793aCM \u566a\u58f0\u6e90\uff08\u5982\u56fe2\u6240\u793a\uff09\u3002<\/p>\n

\n\t\"\u5f00\u5173\u7535\u6e90\u7684EMI\u4eff\u771f\u8bbe\u8ba1\"<\/p>\n

\n\t\u56fe2\u3000\u5171\u6a21\u566a\u58f0\u6e90\u7684\u8868\u793a<\/p>\n

\n\t\u6587\u732e\u57fa\u672c\u90fd\u662f\u7528\u68af\u5f62\u6ce2\u6765\u8868\u793a\u566a\u58f0\u6e90\u7684\uff0c\u4f46\u5b9e\u9645\u4e2d\u5e76\u4e0d\u662f\u6bcf\u4e2a\u7535\u8def\u4e2d\u7684\u5f00\u5173\u5668\u4ef6\u7684\u6ce2\u5f62\u90fd\u80fd\u5f88\u597d\u5730\u7528\u68af\u5f62\u6ce2\u8fd1\u4f3c\uff0c\u56fe3\u6240\u793a\u5373\u4e3a\u4e00\u4e2a\u53cd\u6fc0\u7535\u6e90\u5f00\u5173\u7ba1\u7684\u7535\u6d41\u7535\u538b\u6ce2\u5f62\uff0c\u9664\u4e86\u68af\u5f62\u6ce2\u4e4b\u5916\uff0c\u8fd8\u6709\u7535\u6d41\u5c16\u5cf0\uff0c\u7535\u538b\u8fc7\u51b2\u548c\u4e0b\u51b2\u7b49\u5206\u91cf\uff0c\u4f1a\u5bfc\u81f4\u566a\u58f0\u6e90\u7684\u9891\u8c31\u4e0e\u68af\u5f62\u6ce2\u6709\u4e00\u5b9a\u7684\u4e0d\u540c\u3002\u6240\u4ee5\u4e0d\u80fd\u76f2\u76ee\u5730\u4f7f\u7528\u68af\u5f62\u6ce2\u6765\u8868\u5f81\u566a\u58f0\u6e90\uff0c\u800c\u662f\u9700\u8981\u5bf9\u7535\u8def\u8fdb\u884c\u5206\u6790\u6216\u8005\u4eff\u771f\uff0c\u4ece\u800c\u5f97\u5230\u5f00\u5173\u5668\u4ef6\u7684\u7535\u6d41\u6216\u7535\u538b\u6ce2\u5f62\uff0c\u57fa\u4e8e\u6b64\u6ce2\u5f62\u518d\u5bf9\u566a\u58f0\u6e90\u8fdb\u884c\u5efa\u6a21\uff0c\u8fd9\u6837\u624d\u80fd\u66f4\u7cbe\u786e\u5730\u53cd\u6620\u5f00\u5173\u7535\u6e90\u7684\u7535\u78c1\u5e72\u6270\u3002<\/p>\n

\n\t\"\u5f00\u5173\u7535\u6e90\u7684EMI\u4eff\u771f\u8bbe\u8ba1\"<\/p>\n

\n\t\u56fe3\u3000\u67d0\u53cd\u6fc0\u7535\u6e90\u5f00\u5173\u7ba1\u7684\u7535\u6d41\u7535\u538b\u6ce2\u5f62<\/p>\n

\n\t4.2\u3000\u65e0\u6e90\u5668\u4ef6\u7684\u9ad8\u9891\u6a21\u578b<\/p>\n

\n\t\u5728EMI\u7684\u9891\u7387\u8303\u56f4\u5185\uff0c\u5e38\u7528\u7684\u65e0\u6e90\u5668\u4ef6\u90fd\u4e0d\u80fd\u518d\u88ab\u8ba4\u4e3a\u662f\u7406\u60f3\u7684\uff0c\u4ed6\u4eec\u7684\u5bc4\u751f\u53c2\u6570\u4e25\u91cd\u5f71\u54cd\u7740\u5176\u9ad8\u9891\u7279\u6027\u3002<\/p>\n

\n\t\u5728\u5404\u79cd\u65e0\u6e90\u5668\u4ef6\u4e2d\uff0c\u7535\u963b\u3001\u7535\u611f\u548c\u7535\u5bb9\u7684\u9ad8\u9891\u7b49\u6548\u5bc4\u751f\u53c2\u6570\u53ef\u4ee5\u7528\u9ad8\u9891\u963b\u6297\u5206\u6790\u4eea\u6d4b\u5f97\u3002\u88681\u6240\u793a\u4e3a\u5404\u79cd\u65e0\u6e90\u5668\u4ef6\u7684\u7406\u60f3\u6a21\u578b\u548c\u9ad8\u9891\u7b49\u6548\u6a21\u578b\u3002<\/p>\n

\n\t\u88681\u3000\u7535\u963b\u3001\u7535\u5bb9\u3001\u7535\u611f\u53ca\u53d8\u538b\u5668\u7684\u9ad8\u9891\u7b49\u6548\u6a21\u578b<\/p>\n

\n\t\"\u5f00\u5173\u7535\u6e90\u7684EMI\u4eff\u771f\u8bbe\u8ba1\"<\/p>\n

\n\t\u5bf9\u4e8e\u9ad8\u9891\u53d8\u538b\u5668\uff0c\u63d0\u51fa\u53ef\u4ee5\u4f7f\u7528\u6709\u9650\u5143\u5206\u6790\u65b9\u6cd5\u548c\u5b9e\u9a8c\u6d4b\u91cf\u6cd5\u6c42\u53d6\uff0c\u4ece\u800c\u53ef\u4ee5\u5f97\u5230\u6f0f\u611f\u3001\u539f\u526f\u8fb9\u81ea\u7535\u5bb9\u548c\u539f\u526f\u8fb9\u4e92\u7535\u5bb9\u8fd9\u4e9b\u5f15\u8d77\u7535\u8def\u9707\u8361\u3001\u589e\u52a0\u4f20\u5bfcEMI\u7684\u4e3b\u8981\u53c2\u6570\u3002\u4f7f\u7528ansoft\u516c\u53f8\u7684Maxwell\u4eff\u771f\u8f6f\u4ef6\uff0c\u53ef\u4ee5\u901a\u8fc7\u8f93\u5165\u53d8\u538b\u5668\u7684\u7ed5\u7ec4\u548c\u78c1\u82af\u7684\u51e0\u4f55\u5c3a\u5bf8\u4e0e\u7535\u78c1\u53c2\u6570\uff0c\u5229\u7528\u6709\u9650\u5143\u5206\u6790\u7684\u65b9\u6cd5\u5f97\u5230\u5404\u5bc4\u751f\u53c2\u6570\u3002\u5b9e\u9a8c\u6d4b\u91cf\u6cd5\u7684\u603b\u4f53\u601d\u8def\u5c31\u662f\u5728\u6240\u5efa\u7acb\u6a21\u578b\u7684\u57fa\u7840\u4e0a\uff0c\u63a8\u5bfc\u51fa\u53d8\u538b\u5668\u5728\u4e0d\u540c\u5de5\u4f5c\u72b6\u6001\u4e0b\u7684\u963b\u6297\u7279\u6027\uff08\u5982\u539f\u526f\u8fb9\u7ed5\u7ec4\u5f00\u8def<\/u>\uff0c\u77ed\u8def\u7684\u4e0d\u540c\u7ec4\u5408\uff09\u65b9\u7a0b\uff0c\u7136\u540e\u6d4b\u91cf\u8fd9\u4e9b\u72b6\u6001\u4e0b\u7684\u963b\u6297\uff0c\u4ece\u800c\u5f97\u5230\u6f0f\u611f\u548c\u5bc4\u751f\u7535\u5bb9\u3002<\/p>\n

\n\t4.3\u3000PCB\u53ca\u7ed3\u6784\u5bc4\u751f\u53c2\u6570\u7684\u63d0\u53d6<\/p>\n

\n\t\u9664\u4e86\u5143\u5668\u4ef6\u9009\u53d6\u3001\u7535\u8def\u53ca\u5176\u7ed3\u6784\u8bbe\u8ba1\uff0cPCB\u7684\u5e03\u5c40\u3001\u5e03\u7ebf\u8bbe\u8ba1\u3001\u7ebf\u8def\u677f\u52a0\u5de5<\/u>\u5bf9\u7535\u78c1\u517c\u5bb9\u4f1a\u9020\u6210\u5f88\u5927\u5f71\u54cd\uff0c\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u8bbe\u8ba1\u73af\u8282\u3002\u7531\u4e8e\u5f00\u5173\u7535\u6e90\u7684PCB\u5e03\u7ebf\u57fa\u672c\u4e0a\u90fd\u662f\u4f9d\u636e\u7ecf\u9a8c\u624b\u5de5\u5e03\u7f6e\uff0c\u6709\u5f88\u5927\u7684\u968f\u610f\u6027\uff0c\u8fd9\u5c31\u589e\u52a0\u4e86PCB\u5206\u5e03\u53c2\u6570\u63d0\u53d6\u7684\u96be\u5ea6\u3002PCB\u7684\u5bc4\u751f\u53c2\u6570\u4f1a\u9020\u6210\u5f00\u5173\u7535\u6e90\u566a\u58f0\u4f20\u64ad\u9014\u5f84\u7684\u963b\u6297\u53d8\u5316\uff0c\u5f71\u54cd\u63a7\u5236\u5668\u5bf9\u5f00\u5173\u7535\u6e90\u8f93\u51fa\u7535\u538b\u7535\u6d41\u7684\u63a7\u5236\u4f5c\u7528\u3002PCB\u7684\u5e03\u5c40\u4e0d\u5408\u7406\u8fd8\u4f1a\u5f62\u6210\u5f00\u5173\u7535\u6e90\u5411\u5916\u8f90\u5c04\u7535\u78c1\u5e72\u6270\u7684\u9014\u5f84\uff0c\u540c\u65f6\u4e5f\u4f1a\u901a\u8fc7\u8be5\u9014\u5f84\u5438\u6536\u5916\u754c\u7535\u78c1\u5e72\u6270\uff0c\u4ece\u800c\u964d\u4f4e\u5f00\u5173\u7535\u6e90\u7684\u7535\u78c1\u5e72\u6270\u6297\u6270\u5ea6\u3002\u6240\u4ee5PCB\u7684\u5e03\u5c40\u5e03\u7ebf\u662f\u5f00\u5173\u7535\u6e90EMC\u8bbe\u8ba1\u4e2d\u6781\u4e3a\u91cd\u8981\u7684\u73af\u8282\u3002<\/p>\n

\n\t\u5bf9\u4e8e\u4f20\u5bfc\u5e72\u6270\uff0c\u5bc4\u751f\u53c2\u6570\u7684\u63d0\u53d6\u7cbe\u786e\u5ea6\u662f\u901a\u8fc7\u4eff\u771f\u6709\u6548\u9884\u6d4bEMI\u6c34\u5e73\u7684\u5173\u952e\u3002\u5c3d\u7ba1\u5bf9\u4e8e\u7ed3\u6784\u7b80\u5355\u7684\u5143\u4ef6\u6765\u8bf4\uff0c\u5bc4\u751f\u53c2\u6570\u662f\u5f88\u5bb9\u6613\u8ba1\u7b97\u7684\uff0c\u4f46\u662f\u5bf9\u4e8e\u590d\u6742\u7ed3\u6784\u4e2d\u7684\u5143\u4ef6\u6765\u8bf4\uff0c\u5e76\u4e0d\u662f\u90a3\u4e48\u5bb9\u6613\u5c31\u80fd\u5f97\u5230\u5bc4\u751f\u53c2\u6570\uff0c\u4f8b\u5982\u591a\u5c42\u677f\u548c\u76f4\u6d41\u6bcd\u7ebf\u7684\u5bc4\u751f\u53c2\u6570\u3002<\/p>\n

\n\t\u4e3a\u4e86\u5efa\u7acb\u5f00\u5173\u7535\u6e90PCB\u7684\u9ad8\u9891\u6a21\u578b\uff0c\u9700\u8981\u5bf9PCB\u7684\u7ed3\u6784\u5bc4\u751f\u53c2\u6570\u8fdb\u884c\u62bd\u53d6\u3002\u63d0\u53d6PCB\u5bc4\u751f\u53c2\u6570\u7684\u65b9\u6cd5\u6709\u5f88\u591a\uff0c\u5176\u4e2dTDR\uff08\u65f6\u57df\u53cd\u5c04\uff09\u65b9\u6cd5\u53ef\u4ee5\u5728\u4e0d\u77e5\u9053\u5b9e\u9645\u51e0\u4f55\u5f62\u72b6\u7684\u60c5\u51b5\u4e0b\u5bf9\u5bc4\u751f\u7535\u611f\u548c\u5bc4\u751f\u7535\u5bb9\u8fdb\u884c\u63d0\u53d6\uff0c\u4f46\u662fTDR\uff08\u65f6\u57df\u53cd\u5c04\uff09\u65b9\u6cd5\u9700\u8981\u65f6\u57df\u53cd\u5c04\u4eea\uff0c\u7528\u4e8e\u6837\u673a\u5efa\u6210\u540e\uff0c\u8fd9\u5c31\u4f7f\u5f00\u53d1\u6210\u672c\u5927\u5927\u589e\u52a0\uff0c\u800c\u4e14TDR\u65b9\u6cd5\u4e0d\u80fd\u5bfb\u627e\u5230\u590d\u6742\u7ed3\u6784\u4e2d\u7684\u8026\u5408\u6548\u5e94\uff1b\u7136\u800cFEA\uff08\u6709\u9650\u5143\u5206\u6790\uff09\u65b9\u6cd5\u5219\u53ef\u4ee5\u514b\u670d\u8fd9\u4e00\u7f3a\u70b9\uff0c\u7528\u4e8e\u6837\u673a\u5efa\u6210\u524d\u3002\u5229\u7528FEA\u5de5\u5177\u53ef\u4ee5\u51c6\u786e\u5730\u5f97\u5230PCB\u7684\u5bc4\u751f\u53c2\u6570\uff0c\u5e76\u80fd\u8003\u8651\u590d\u6742\u51e0\u4f55\u7ed3\u6784\u7684\u8026\u5408\u60c5\u51b5\u3002<\/p>\n

\n\t\u6709\u5f88\u591a\u5bf9PCB\u7ed3\u6784\u8fdb\u884c\u5bc4\u751f\u53c2\u6570\u62bd\u53d6\u8f6f\u4ef6\uff0c\u5982InCa\uff0cSIwave\uff0cQ3D \u7b49\uff0c\u5206\u522b\u7528\u4e0d\u540c\u7684\u65b9\u6cd5\u5bf9PCB\u7684\u5bc4\u751f\u53c2\u6570\u8fdb\u884c\u8ba1\u7b97\u548c\u63d0\u53d6\uff0c\u5982\u90e8\u5206\u5143\u7b49\u6548\u7535\u8def\u65b9\u6cd5\u3001\u6709\u9650\u5143\u5206\u6790\u65b9\u6cd5\u3001\u6709\u9650\u5143\u5206\u6790\u65b9\u6cd5\u548c\u77e9\u91cf\u6cd5\u7ed3\u5408\u7684\u65b9\u6cd5\u7b49\u3002\u5176\u4e2dInCa\u8f6f\u4ef6\u53ea\u80fd\u8ba1\u7b97\u5206\u5e03\u7535\u611f\uff0c\u4e0d\u9002\u5408\u8ba1\u7b97\u5206\u5e03\u7535\u5bb9\uff0c\u4e0d\u5b9c\u5904\u7406\u5171\u6a21\u5e72\u6270\u7684\u4eff\u771f\u5206\u6790\uff1bSIwave\u8f6f\u4ef6\u63d0\u53d6\u51fa\u6765\u7684\u662f\u7535\u8def\u7684\uff33\u53c2\u6570\uff0c\u4e0d\u80fd\u6e05\u6670\u5730\u53cd\u6620PCB\u4e2d\u7684\u8026\u5408\u60c5\u51b5\u53ca\u5176\u5bf9\u5f00\u5173\u7535\u6e90EMI\u7684\u5f71\u54cd\uff1bQ3D \u8f6f\u4ef6\u5229\u7528FEA \u548cMOM\u7ed3\u5408\u7684\u65b9\u6cd5\u6c42\u89e3\u7535\u78c1\u573a\uff0c\u53ef\u4ee5\u5f97\u5230PEEC\u90e8\u5206\u5143\u7b49\u6548\u7535\u8def\uff0c\u4e5f\u53ef\u4ee5\u5f97\u5230PCB\u4e0a\u5404\u5bfc\u4f53\u7684\u4e92\u611f\u4e92\u5bb9\uff0c\u53ef\u4ee5\u6e05\u6670\u5730\u5206\u6790\u5404\u79cd\u60c5\u51b5\u4e0bPCB\u7ed3\u6784\u5bf9\u5f00\u5173\u7535\u6e90EMI\u7684\u5f71\u54cd\u3002<\/p>\n

\n\tJ.Ekman\u63d0\u51fa\u4e86\u57fa\u4e8e\u5bc4\u751f\u53c2\u6570\u77e9\u9635\u7684\u7b49\u6548\u7535\u8def\u7684\u5efa\u7acb\u65b9\u6cd5\uff0c\u5373\u628a\u6240\u6709\u4e92\u611f\u3001\u4e92\u5bb9\u7b49\u6548\u6210\u53d7\u63a7\u7684\u7535\u538b\u6e90\uff0c\u4e0e\u81ea\u611f\u3001\u81ea\u5bb9\u8fde\u63a5\uff08\u76f8\u5f53\u4e8e\u628a\u6240\u6709\u4e92\u611f\u3001\u4e92\u5bb9\u5bf9\u7535\u8def\u7684\u5f71\u54cd\u7b49\u6548\u5230\u53d7\u63a7\u7535\u538b\u6e90\u4e0a\uff09\uff0c\u4ece\u800c\u5efa\u7acb\u7b49\u6548\u7535\u8def\u6a21\u578b\u3002\u56fe4\u6240\u793a\u4e3a\u4efb\u610f\u4e24\u4e2a\u8282\u70b9\u95f4\u7684\u7b49\u6548\u7535\u8def\u6a21\u578b\u3002<\/p>\n

\n\t\"\u5f00\u5173\u7535\u6e90\u7684EMI\u4eff\u771f\u8bbe\u8ba1\"<\/p>\n

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\n\t\u56fe4\u4e2d\uff1a<\/p>\n

\n\t\"\u5f00\u5173\u7535\u6e90\u7684EMI\u4eff\u771f\u8bbe\u8ba1\"<\/p>\n

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