{"id":9182,"date":"2022-05-23T10:03:52","date_gmt":"2022-05-23T02:03:52","guid":{"rendered":"http:\/\/www.szryc.com\/?p=9182"},"modified":"2022-05-23T10:03:52","modified_gmt":"2022-05-23T02:03:52","slug":"%e5%85%b3%e4%ba%8e%e8%bd%a6%e8%bd%bd%e6%97%a0%e7%ba%bf%e7%94%b5emi-%e9%97%ae%e9%a2%98%e5%92%8c%e8%a7%a3%e5%86%b3%e6%96%b9%e6%a1%88","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=9182","title":{"rendered":"\u5173\u4e8e\u8f66\u8f7d\u65e0\u7ebf\u7535EMI \u95ee\u9898\u548c\u89e3\u51b3\u65b9\u6848"},"content":{"rendered":"

\u5bf9\u4e8e\u6211\u4eec\u8fd9\u4e9b\u5728\u65e5\u5e38\u901a\u52e4\u4e2d\u82b1\u8d39\u8fc7\u591a\u65f6\u95f4\u5728\u8d70\u8d70\u505c\u505c\u7684\u4ea4\u901a\uff08\u6216\u5b8c\u5168\u505c\u5728\u6240\u8c13\u7684\u5dde\u9645\u516c\u8def\u4e0a\uff09\u7684\u4eba\u6765\u8bf4\uff0c\u77e5\u9053\u8fd9\u6bb5\u7a7a\u95f2\u65f6\u95f4\u53ef\u4ee5\u7528\u4e8e\u8bb8\u591a\u5176\u4ed6\u76ee\u7684\uff0c\u5e76\u4e14\u6c7d\u8f66\u4e00\u76f4\u662f\u5e2e\u52a9\u6211\u4eec\u5b8c\u6210\u4e00\u4e9b\u5176\u4ed6\u201c\u4efb\u52a1\u201d\u7684\u6280\u672f\u7684\u5173\u952e\u5e02\u573a\uff0c\u4f8b\u5982\u7535\u8bdd\u4ea4\u8c08\u3001\u77ed\u4fe1\u548c\u7535\u5b50<\/u>\u90ae\u4ef6\u3001\u5728\u7ebf\u8d2d\u7269\u548c\u51b2\u6d6a\u3001\u7535\u5f71\u4e0b\u8f7d<\/u>\u548c\u89c6\u9891<\/u>\u6d41\u3001\u6e38\u620f\u73a9\uff0c\u7b49\u7b49\u3002\u5982\u679c\u60a8\u5728\u4ea4\u901a\u4e2d\u5411\u5de6\u6216\u5411\u53f3\u770b\uff0c\u60a8\u4f1a\u53d1\u73b0\u8fd9\u4e9b\u4efb\u52a1\u4e2d\u7684\u5927\u90e8\u5206\u90fd\u662f\u56f4\u7ed5\u624b\u673a\u7684\u4f7f\u7528\u800c\u53d1\u5c55\u7684\u3002\u4e3a\u4e86\u8865\u5145\u8fd9\u79cd\u9ad8\u4f7f\u7528\u7387\uff0c\u5176\u4e2d\u4e00\u9879\u8f83\u65b0\u7684\u5b9e\u65bd\u6280\u672f\u662f\u8f66\u8f7d\u65e0\u7ebf\u5145\u7535<\/u>\u529f\u80fd\u5185\u7f6e\u4e8e\u4e2d\u592e\u63a7\u5236\u53f0\u533a\u57df\u6216\u5176\u4ed6\u4e00\u4e9b\u6613\u4e8e\u8bbf\u95ee\u7684\u4f4d\u7f6e\u3002\u76ee\u7684\uff1f\u79fb\u9664\u6240\u6709\u8fd9\u4e9b\u63d2\u5165\u5f0f\u7535\u7f06<\/u>\u5e76\u5728\u5145\u7535\u65f6\u5c06\u624b\u673a\u653e\u5728\u5df2\u77e5\u4f4d\u7f6e\u3002<\/p>\n

\u80cc\u666f<\/p>\n

\u5728\u8fc7\u53bb\u7684\u4e09\u5e74\u4e2d\uff0c\u65e0\u7ebf\u7535\u529b\u6280\u672f\u201c\u6218\u4e89\u201d\u4ee5\u201cQi\u201d\u6216\u65e0\u7ebf\u7535\u529b\u8054\u76df \uff08WPC\uff09 \u6210\u4e3a\u8d62\u5bb6\uff0c\u800c\u73b0\u5728\u662f\u4f4e\u529f\u8017\u7684\u4e8b\u5b9e\u6807\u51c6\u3002\u5168\u7403\u6240\u6709\u9886\u5148\u624b\u673a\u5236\u9020\u5546\u5b9e\u65bd Qi \u6280\u672f\u8fdb\u4e00\u6b65\u9a8c\u8bc1\u4e86\u8fd9\u4e00\u70b9\u3002\u5728\u6b64\u4e4b\u524d\uff0c\u6c7d\u8f66\u5236\u9020\u5546\u786e\u5b9e\u5728\u4ed6\u4eec\u7684\u8f66\u8f86\u4e2d\u5b9e\u65bd\u4e86\u65e0\u7ebf\u5145\u7535\uff0c\u4f46\u4eba\u4eec\u4e00\u76f4\u62c5\u5fc3\u662f\u5426\u4f1a\u56e0\u4e3a\u4e70\u5bb6\u7684\u624b\u673a\u4e0d\u517c\u5bb9\u5d4c\u5165\u5f0f\u5145\u7535\u6280\u672f\u800c\u5931\u53bb\u9500\u552e\u3002<\/p>\n

\u63d0\u4f9b\u65e0\u7ebf\u5145\u7535\u529f\u80fd\u7684\u8f66\u578b\u5b9e\u65bd\u6570\u91cf\u5df2\u4ece 2016 \u5e74\u521d\u7684 40 \u591a\u6b3e\u589e\u957f\u5230 100 \u591a\u6b3e\uff08\u76ee\u524d\uff09\uff0c\u8fd9\u76f8\u5f53\u4e8e\u8d85\u8fc7 1200 \u4e07\u8f86\uff08240 \u4e07\u8f86 OEM \u5b89\u88c5\uff0c970 \u4e07\u8f86\u552e\u540e\u5e02\u573a\uff09\u5177\u6709\u57fa\u4e8e Qi \u7684\u8f66\u8f86\u4ec5\u5728 2018 \u5e74\u5b89\u88c5\u7684\u8f66\u8f86\u7cfb\u7edf\u3002\u8fd9\u4e9b\u7cfb\u7edf\u4e2d\u7684\u5927\u591a\u6570\u90fd\u7b26\u5408 Qi \u57fa\u672c\u529f\u7387\u914d\u7f6e\u6587\u4ef6 \uff08BPP\uff09 \u548c 5W\uff08\u74e6\uff09\u3002\u65b0\u7684\u65b9\u5411\u662f\u66f4\u5feb\u7684\u5145\u7535\u548c\u66f4\u9ad8\u7684\u529f\u7387\u3002\u5927\u591a\u6570\u65b0\u8bbe\u8ba1\u7684\u76ee\u6807\u662f\u7b26\u5408 Qi \u6269\u5c55\u529f\u7387\u914d\u7f6e\u6587\u4ef6 \uff08EPP\uff09 \u6216 15W \u529f\u80fd\u3002\u8fd9\u79cd\u80fd\u591f\u66f4\u5feb\u5145\u7535\u7684\u989d\u5916\u4fbf\u5229\u4f34\u968f\u7740\u5fc5\u987b\u514b\u670d\u7684\u989d\u5916\u6280\u672f\u969c\u788d\u3002\u4e09\u4e2a\u4e3b\u8981\u95ee\u9898\u662f EMI \u5408\u89c4\u6027\u3001\u6548\u7387\u548c\u70ed\u9650\u5236\u3002<\/p>\n

15W\u7cfb\u7edf<\/p>\n

\u5728 WPC \u6807\u51c6\u4e2d\uff0c\u6709\u5b50\u7c7b\u522b\uff08\u4f8b\u5982 MP-A8\u3001MP-A9\u3001MP-A13\uff09\u6307\u5b9a\u4e86\u65e0\u7ebf\u7535\u529b\u7cfb\u7edf\u7684\u5404\u4e2a\u65b9\u9762\u4ee5\u53ca\u653e\u7f6e\u5728\u4e2d\u63a7\u53f0\u5185\u7684\u53d1\u5c04 \uff08Tx\uff09 \u7ebf\u5708\u7684\u914d\u7f6e\u533a\u57df\u3002\u51fa\u4e8e\u4e92\u64cd\u4f5c\u6027\u76ee\u7684\uff0c\u8be5\u6807\u51c6\u5b9a\u4e49\u4e86\uff1a\u8f93\u5165\u76f4\u6d41\u7535\u538b\u3001Tx \u7ebf\u5708\u5c3a\u5bf8\u548c\u5f62\u72b6\u3001\u7535\u6c14\u53c2\u6570\u3001\u9891\u7387\u63a7\u5236\uff08\u56fa\u5b9a\u4e0e\u53ef\u53d8\uff09\u3001\u529f\u7387\u6c34\u5e73\u548c\u529f\u7387\u63a7\u5236\uff08\u7535\u538b\/\u9891\u7387\/\u76f8\u4f4d\/\u5360\u7a7a\u6bd4\uff09\u3002\u4f7f\u7528\u8f66\u8f86\u4e3b\u7535\u6c60<\/u>\u7684\u8f93\u5165\u7535\u538b\u901a\u5e38\u4e3a 12V \u8fdb\u5165\u53d1\u5c04\u5668\u7535\u8def<\/u>\uff0c\u56e0\u6b64\u5177\u6709\u5347\u9ad8\u7684\u7535\u538b\uff0c\u4ea7\u751f\u7684\u7535\u573a \uff08E\uff09 \u6bd4\u4e0e\u8bb8\u591a\u684c\u9762\u65e0\u7ebf\u5145\u7535\u5668\u76f8\u5173\u7684 5V \u8f93\u5165\u7535\u538b\u66f4\u5f3a\u3002\u7531\u4e8e\u7cfb\u7edf\u5185\u7684\u8c10\u632f\u64cd\u4f5c\u6a21\u5f0f\uff0c\u7ebf\u5708\uff08\u8c10\u632f\u5668<\/u>\/\u5929\u7ebf\uff09\u4e0a\u7684\u5b9e\u9645\u7535\u538b\u53ef\u80fd\u5728 100V \u5de6\u53f3\uff0c<\/p>\n

EMI \u95ee\u9898\u548c\u89e3\u51b3\u65b9\u6848<\/p>\n

\u5728\u8f83\u65b0\u7684\u8f66\u8f86\u4e0a\uff0c\u6709\u8bb8\u591a\u5c04\u9891\u7cfb\u7edf\uff0c\u6240\u6709\u8fd9\u4e9b\u7cfb\u7edf\u90fd\u9700\u8981\u5171\u5b58\u4ee5\u786e\u4fdd\u5b83\u4eec\u6240\u505a\u7684\u4e8b\u60c5\u4e0d\u4f1a\u5f71\u54cd\u5176\u4ed6\u4efb\u4f55\u4e1c\u897f\u3002\u5176\u4e2d\u4e00\u4e9b\u662f\uff1aAM\/FM \u6536\u97f3\u673a\u3001GPS<\/u>\u3001AD<\/u>AS \u7cfb\u7edf\u3001\u591a\u4e2a\u8702\u7a9d\u9891\u6bb5\u3001\u84dd\u7259<\/u>\u3001WiFi\u3001\u8d44\u4ea7\u8ddf\u8e2a\u3001\u77ed\u6ce2\u6536\u97f3\u673a\u3001\u5bc6\u94a5\u5361\u3001\u8b66\u5bdf\u626b\u63cf\u4eea\u3001\u8fdc\u7a0b\u4fe1\u606f\u5904\u7406\u7b49\uff0c\u751a\u81f3\u53ef\u80fd\u8fd8\u6709\u4e00\u4e9b CB \u6536\u97f3\u673a\u5bf9\u4e8e\u6240\u6709\u90a3\u4e9b 10-4 \u54e5\u4eec\u5728\u90a3\u91cc\u3002<\/p>\n

\u5176\u4e2d\u4e00\u4e9b\u5c04\u9891<\/u>\u7cfb\u7edf\u5728 Qi EPP \u65e0\u7ebf\u7535\u529b\u7cfb\u7edf\u7684 87-205 KHz\uff08\u6700\u9ad8\u53ef\u8fbe 300 KHz\uff09\u57fa\u9891\u8303\u56f4\u5185\u548c\/\u6216\u901a\u8fc7\u4f4e\u8c10\u6ce2\u8fd0\u884c\u3002525 KHz \u81f3 1705 KHz\uff08\u5728\u7f8e\u6d32\uff09\u7684 AM \u6536\u97f3\u673a\u88ab\u8981\u6c42\u65e0 EMI\uff0c\u56e0\u4e3a\u5b83\u88ab\u7528\u4f5c\u7d27\u6025\u5e7f\u64ad\u7cfb\u7edf\u7684\u4e00\u90e8\u5206\u3002\u65b0\u7684\u8fdc\u7a0b\u65e0\u94a5\u5319\u8fdb\u5165\u7cfb\u7edf \uff08RKE\uff09 \u4ee5 125 KHz \u8fd0\u884c\uff0c\u4e00\u4e9b\u8f6e\u80ce\u538b\u529b\u76d1\u6d4b\u7cfb\u7edf \uff08TPMS\uff09 \u4e5f\u4f7f\u7528\u6b64\u9891\u7387\u6765\u9a71\u52a8\u542f\u52a8\u5668 LC \u7ebf\u5708\u7535\u8def\u3002<\/p>\n

\u6c7d\u8f66\u5e94\u7528\u5bf9 EMI \u6709\u975e\u5e38\u4e25\u683c\u7684\u8981\u6c42\u3002CISPR 25\uff08Comit\u00e9 Internati<\/u>onal Sp\u00e9cial des Perturbations Radio\u00e9lectriques\uff09\u662f\u4e00\u9879\u975e\u76d1\u7ba1\u5de5\u7a0b\u6c7d\u8f66\u6807\u51c6\uff0c\u5b83\u8bbe\u5b9a\u4e86\u4e3a\u4fdd\u62a4\u5176\u4ed6\u8f66\u8f7d\u63a5\u6536\u5668\u800c\u5fc5\u987b\u6ee1\u8db3\u7684\u4f20\u5bfc\u548c\u8f90\u5c04\u53d1\u5c04\u9650\u503c\u3002\u5b83\u5728 150 kHz \u81f3 2500 MHz \u7684\u9891\u7387\u8303\u56f4\u5185\u5b9a\u4e49\u4e86\u8fd9\u4e9b\u9650\u5236\uff0c\u8fd9\u4e9b\u9650\u5236\u53ef\u80fd\u7531\u5176\u4ed6\u8f66\u8f7d\u5929\u7ebf\u4f20\u5bfc\u3002<\/p>\n

\u5728 CISPR 25 \u4e2d\uff0c\u6709\u4e00\u4e9b\u7c7b\u522b\u5b9a\u4e49\u4e86\u5141\u8bb8\u7684\u4f20\u5bfc\u548c\u8f90\u5c04\u566a\u58f0\u53d1\u5c04\u9650\u503c\u7684\u6c34\u5e73\uff0c\u8f90\u5c04\u566a\u58f0\u662f\u771f\u6b63\u503c\u5f97\u5173\u6ce8\u7684\u95ee\u9898\u3002\u8868 1 \u4e2d\u7ed9\u51fa\u4e86\u901a\u8fc7 FM \u65e0\u7ebf\u7535\u9891\u6bb5\u7684\u5cf0\u503c\u3001\u51c6\u5cf0\u503c\u548c\u5e73\u5747\u6d4b\u91cf<\/u>\u7535\u538b\u7684\u7c7b\u53d1\u5c04 \uff3b\u8f90\u5c04\uff3d \u9650\u5236\u4e0e\u9891\u6bb5\u3002<\/p>\n

\"pYYBAGJ41OKAXAAUAAOiJH72eCk604\"<\/p>\n

\u8868 1\uff1a\u6309\u7c7b\u522b\u5212\u5206\u7684 CISPR 25 \u8f90\u5c04\u9650\u503c<\/p>\n

\u968f\u7740 Qi EPP \u529f\u7387\u6c34\u5e73\u7684\u63d0\u9ad8\uff0c\u6ee1\u8db3 Class 4 \u4e00\u76f4\u662f\u4e00\u4e2a\u6311\u6218\uff0c\u76ee\u524d\u5e02\u573a\u4e0a\u8fd8\u6ca1\u6709 Class 5 \u7cfb\u7edf\u3002\u5bf9\u4e8e\u8f66\u8f7d\u65e0\u7ebf\u5145\u7535\uff0c\u9ad8\u8fbe 1.8 MHz \u7684 AM \u9891\u7387\u662f\u6700\u654f\u611f\u7684\uff0c\u4f46\u8ba4\u8bc1\u6d4b\u8bd5<\/u>\u786e\u5b9e\u4f1a\u8d85\u8fc7 1 GHz\u3002\u56fe 1 \u63d0\u4f9b\u4e86\u5b9e\u9645\u7684 CISPR 25 Class 5 \u6d4b\u91cf\u6570\u636e\u3002<\/p>\n

\"pYYBAGJ41OqASojOAAT0Iq2v5ug357\"<\/p>\n

\u56fe 1\uff1aCISPR 25 5 \u7c7b\u521d\u59cb\u6d4b\u8bd5 100 KHz \u81f3 30 MHz<\/p>\n

\u4ece\u56fe\u4e2d\u53ef\u4ee5\u770b\u51fa\uff0c\u8be5\u8bbe\u8ba1\u5e76\u672a\u5b8c\u5168\u901a\u8fc7 5 \u7c7b\u8ba4\u8bc1\uff0c\u4f46\u786e\u5b9e\u7b26\u5408 4 \u7c7b\u8981\u6c42\u3002EMI \u566a\u58f0\u6291\u5236\u4ece\u7cfb\u7edf\u7684\u7535\u6c14\u8bbe\u8ba1\u5f00\u59cb\uff0c\u4ee5\u4e0b\u90e8\u5206\u4ecb\u7ecd\u4e86\u8bbe\u8ba1\u4e2d\u7528\u4e8e\u6ee1\u8db3 CISPR 25 \u8981\u6c42\u7684\u4e00\u4e9b\u5173\u952e\u9886\u57df\u3002<\/p>\n

\u51cf\u8f7b EMI \u566a\u58f0\u7684\u7b2c\u4e00\u4e2a\u9886\u57df\u662f\u5b9e\u65bd\u56fa\u5b9a\u9891\u7387\u7cfb\u7edf\u3002\u5728 Qi \u6807\u51c6\u4e2d\uff0c\u6709\u4e00\u4e9b\u65b9\u6cd5\u53ef\u4ee5\u8ba9\u53ef\u53d8\u9891\u7387\u66f4\u597d\u5730\u201c\u8c03\u6574\u201d\u4e24\u4fa7\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002\u7136\u800c\uff0c\u4e3a\u4e86\u6ee1\u8db3\u4e0e\u8f66\u8f7d\u7535\u6e90<\/u>\u7cfb\u7edf\u76f8\u5173\u7684\u4e25\u683c EMI \u566a\u58f0\u6c34\u5e73\uff0c\u4e0d\u65ad\u53d8\u5316\u7684\u9891\u7387\u5c06\u4f7f\u6ee1\u8db3\u8fd9\u4e9b\u8981\u6c42\u53d8\u5f97\u66f4\u52a0\u56f0\u96be\u3002\u6b64\u5916\uff0c\u6b27\u6d32\u6c7d\u8f66\u5236\u9020\u5546\u5bf9 145 KHz \u4ee5\u4e0a\u6709\u9650\u5236\uff0c\u56e0\u6b64\u5f53\u524d\u89e3\u51b3\u65b9\u6848\u7684\u56fa\u5b9a\u5de5\u4f5c\u9891\u7387\u8bbe\u7f6e\u5728 127 KHz \u5de6\u53f3\u3002<\/p>\n

\u4e0b\u4e00\u4e2a\u6280\u672f\u662f\u901a\u8fc7 Tx \u7ebf\u5708\u53bb\u9664\u65b9\u6ce2\u7535\u6d41<\/u>\uff0c\u5e76\u4f7f\u8fd9\u4e9b\u7535\u6d41\u5c3d\u53ef\u80fd\u63a5\u8fd1\u6b63\u5f26\u66f2\u7ebf\u3002\u8fd9\u79cd\u65b9\u6cd5\u51cf\u5c11\u4e86\u53ef\u80fd\u4ea7\u751f\u7684\u566a\u58f0\u201c\u5c16\u5cf0\u201d\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u7535\u611f\u5668<\/u>\u6765\u5b9e\u73b0\uff0c\u56e0\u4e3a\u8fd9\u79cd\u65e0\u6e90\u5668\u4ef6\u53ef\u4ee5\u6d88\u9664\u7531\u5f00\u5173<\/u>\u00a0\uff08MOSFET<\/u>\uff09 \u7684\u5f00\/\u5173\u4ea7\u751f\u7684\u65b9\u6ce2\u7535\u6d41\uff0c\u5e76\u6709\u52a9\u4e8e\u786e\u4fdd\u5f00\u5173\u65b9\u6848\u201c\u5e72\u51c0\u201d\u4e14\u65e0\u566a\u58f0\u3002<\/p>\n

\u901a\u8fc7\u5728\u7535\u6e90\u7ebf\u4e0a\u6dfb\u52a0\u4e00\u4e2a\u4e0e Tx \u7ebf\u5708\u7ed5\u7ec4\u4e32\u8054\u7684\u5171\u6a21\u6ee4\u6ce2\u5668 \uff08CMF\uff09\uff0c\u53ef\u4ee5\u5b9e\u73b0\u8fdb\u4e00\u6b65\u7684 EMI \u6291\u5236\u3002\u901a\u8fc7\u7ebf\u5708\u7684\u7535\u6d41\u662f 100% \u7684\u4ea4\u6d41\u7535 \uff08AC\uff09\uff0c\u5e76\u4e14\u6ca1\u6709\u50cf\u8bb8\u591a\u6d89\u53ca\u76f4\u6d41\u7535\u6d41\u548c\u4e00\u4e9b\u5141\u8bb8\u7eb9\u6ce2\u7535\u6d41\u7684\u7535\u6e90\u90a3\u6837\u5305\u542b\u76f4\u6d41\u7535 \uff08DC\uff09\u3002\u7ebf\u5708\u7684\u7535\u6d41\u53ef\u4ee5\u8ba4\u4e3a\u662f 100% \u7684\u7eb9\u6ce2\u7535\u6d41\u3002\u56e0\u6b64\uff0c\u9009\u62e9\u7528\u4e8e\u8be5 CMF \u7684\u94c1\u6c27\u4f53\u6750\u6599\u5f88\u91cd\u8981\uff0c\u5e76\u4e14\u5728 127 KHz \u56fa\u5b9a\u9891\u7387\u4e0b\uff0c\u4ea4\u6d41\u78c1\u82af<\/u>\u635f\u8017\u5fc5\u987b\u5904\u4e8e\u7edd\u5bf9\u6700\u5c0f\u503c\u3002<\/p>\n

\u53e6\u4e00\u79cd EMI \u566a\u58f0\u6291\u5236\u6280\u672f\u662f\u6dfb\u52a0 EMI \u566a\u58f0\u6291\u5236\u78c1\u7247\uff0c\u4ee5\u5438\u6536\u53ef\u80fd\u4ece\u4e3b Tx \u5c4f\u853d\u80cc\u9762\u4f20\u8f93\u51fa\u6765\u7684\u5de5\u4f5c\u9891\u7387\u3001\u8c10\u6ce2\u548c\u6742\u6563\u566a\u58f0\u3002\u78c1\u7247\u901a\u8fc7\u4e24\u79cd\u65b9\u6cd5\u6d88\u9664 EMI \u566a\u58f0\u3002\u9996\u5148\uff0c\u8fd9\u4e9b\u6750\u6599\u7684\u78c1\u5bfc\u7387 \uff08\u00b5\u2018\uff09 \u4f7f\u8fd9\u4e9b\u5c4f\u853d\u80fd\u591f\u5305\u542b \uff3b\u5438\u6536\uff3d EMI \u566a\u58f0\u78c1\u901a\u91cf \uff08\u03c6\uff09 \u5e76\u9632\u6b62\u5176\u88ab\u8f90\u5c04\u3002\u63a5\u4e0b\u6765\uff0c\u8fd9\u4e9b\u5c4f\u853d\u7684\u7535\u963b<\/u>\u7279\u6027 \uff08\u00b5\u201d\uff09 \u4e3a\u4e0d\u9700\u8981\u7684\u9891\u7387\u7684\u901a\u91cf\u573a\u521b\u5efa\u4e86\u4e00\u4e2a\u7535\u963b\u8def\u5f84\uff0c\u5e76\u8870\u51cf\u4e86 EMI \u566a\u58f0\u5e76\u4ee5\u70ed\u91cf\u7684\u5f62\u5f0f\u5c06\u5176\u4ece\u73af\u5883\u4e2d\u79fb\u9664\u3002\u8fd9\u79cd\u5173\u7cfb\u5728\u516c\u5f0f 1 \u4e2d\u7ed9\u51fa\u3002<\/p>\n

\u00b5 = \u00b5\u2019 \u2013 j\u00b5\u201d \uff3b\u7b49\u5f0f\u30021\uff3d<\/p>\n

\u5bf9\u4e8e EMI \u6291\u5236\u5e94\u7528\uff0c\u66f4\u9ad8\u7684 \u00b5\u2018 \u901a\u8fc7\u78c1\u901a\u91cf\u6291\u5236\u4ea7\u751f\u66f4\u597d\u7684\u5c4f\u853d\u6027\u80fd\uff0c\u800c\u66f4\u9ad8\u7684 \u00b5\u2019 \u901a\u8fc7\u6750\u6599\u78c1\u82af\u635f\u8017\u4ea7\u751f\u66f4\u597d\u7684\u566a\u58f0\u6291\u5236\u3002\u00b5\u2018 \u503c\u592a\u9ad8\u4f1a\u964d\u4f4e\u6027\u80fd\u3002\u7531\u4e8e\u4e00\u79cd\u79f0\u4e3a\u78c1\u8026\u5408<\/u>\u00a0\uff08K\uff09 \u7684\u73b0\u8c61\uff0c\u5177\u6709\u989d\u5916\u7684\u78c1\u7247\u53ef\u4ee5\u6539\u53d8 Tx \u7ebf\u5708\u7684\u7535\u611f<\/u>\u503c\u5e76\u901a\u8fc7\u4e92\u8026\u5408\uff08M \u6216 Lm\uff09\u4f7f\u7535\u8def\u5931\u8c10\uff0c\u5e76\u4f7f\u5176\u8fdc\u79bb\u6240\u9700\u7684\u56fa\u5b9a\u9891\u7387\u3002<\/p>\n

\u6700\u540e\uff0c\u5982\u679c EMI \u6291\u5236\u7247\u786e\u5b9e\u4f1a\u5bfc\u81f4\u56fa\u5b9a\u9891\u7387\u95ee\u9898\uff0c\u90a3\u4e48\u4e5f\u53ef\u4ee5\u4f7f\u7528\u975e\u78c1\u6027\u6750\u6599\u6765\u6291\u5236 EMI \u566a\u58f0\u3002\u6311\u6218\u5728\u4e8e\u83b7\u5f97\u4e00\u79cd\u80fd\u591f\u5438\u6536\u4e00\u5b9a\u7a0b\u5ea6\u7684\u566a\u58f0\u80fd\u91cf\u7684\u6750\u6599\uff0c\u4f46\u53c8\u4e0d\u4f1a\u8fc7\u4e8e\u91d1\u5c5e\u5316\uff0c\u4ee5\u81f3\u4e8e\u4e0d\u80fd\u7b80\u5355\u5730\u53cd\u5c04 EMI \u566a\u58f0\u800c\u4e0d\u662f\u53bb\u9664\u5b83\uff0c\u4e5f\u4e0d\u4f1a\u6291\u5236\u6240\u9700\u7684 H \u573a\u3002\u5177\u6709\u4f4e\u8868\u9762\u7535\u963b\uff08~4 ohms\/square\uff09\u7684\u94f6\u5408\u91d1\u57fa\u8584\u819c\u5df2\u88ab\u4f7f\u7528\uff0c\u5e76\u5c55\u793a\u4e86\u9ad8\u8fbe 1 MHz \u7684\u6539\u8fdb\u7684 EMI \u566a\u58f0\u6291\u5236\u548c\u6709\u95ee\u9898\u7684\u8c10\u6ce2\u7684\u8870\u51cf\u3002\u8fd9\u4e9b\u653e\u7f6e\u5728\u7ed5\u7ec4\u9876\u90e8\u7684\u975e\u78c1\u6027\u8584\u7247\u503e\u5411\u4e8e\u66f4\u597d\u5730\u6291\u5236\u57fa\u4e8e\u7535\u538b\/E \u573a\u7684\u8c10\u6ce2\uff0c\u800c\u4e0d\u662f\u57fa\u4e8e\u7535\u6d41\/H \u573a\u7684\u8c10\u6ce2\u3002<\/p>\n

Tx \u7ebf\u5708\u5e26\u6709\u81ea\u5df1\u7684\u78c1\u5c4f\u853d\uff0c\u5176\u4e2d\u5305\u542b\u7531\u901a\u8fc7\u7ed5\u7ec4\u7684\u6b63\u5f26\u7535\u6d41\u4ea7\u751f\u7684\u78c1\u901a\u91cf\u3002\u5bf9\u4e8e\u57fa\u672c\u5de5\u4f5c\u9891\u7387 \uff08127 KHz\uff09\uff0c\u5c4f\u853d\u6750\u6599\u88ab\u9009\u62e9\u4e3a\u5177\u6709\u66f4\u9ad8\u7684 \u00b5\u2019 \u548c\u975e\u5e38\u4f4e\u7684 \u00b5\u201d\uff0c\u4ee5\u4e0d\u8870\u51cf\u6240\u9700\u7684\u78c1\u901a\u91cf\u573a\u3002\u8be5\u5c4f\u853d\u5305\u542b\u5de5\u4f5c\u9891\u7387\u4e0b\u7684\u6240\u9700\u78c1\u901a\u91cf\u4ee5\u63d0\u9ad8\u6027\u80fd\u548c\u4e00\u4e9b\u8c10\u6ce2\u901a\u91cf\uff0c\u56e0\u6b64\u6210\u4e3a\u6574\u4f53 EMI \u5408\u89c4\u6027\u89e3\u51b3\u65b9\u6848\u7684\u4e00\u90e8\u5206\u3002<\/p>\n

Chris T. Burket\u5df2\u5728\u00a0TDK<\/u>\u00a0\u5de5\u4f5c\u8d85\u8fc7 25 \u5e74\uff0c\u5e76\u5728\u6d1b\u6749\u77f6\u529e\u4e8b\u5904\u5360\u636e\u4e86\u4e00\u5f20\u529e\u516c\u684c\u3002\u4ed6\u66fe\u5728 TDK \u62c5\u4efb\u8fc7\u591a\u4e2a\u804c\u4f4d\uff0c\u76ee\u524d\u662f\u4e00\u540d\u4ea7\u54c1\u8425\u9500\u5de5\u7a0b\u5e08\u3002\u4ed6\u5f00\u7740\u4e00\u8f86 1968 \u5e74\u7684 Camaro\uff0c\u65b0\u8f66\u65f6\u6ca1\u6709\u914d\u5907\u96c6\u6210\u65e0\u7ebf\u5145\u7535\u7cfb\u7edf\u9009\u9879\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5bf9\u4e8e\u6211\u4eec\u8fd9\u4e9b\u5728\u65e5\u5e38\u901a\u52e4\u4e2d\u82b1\u8d39\u8fc7\u591a\u65f6\u95f4\u5728\u8d70\u8d70\u505c\u505c\u7684\u4ea4\u901a\uff08\u6216\u5b8c\u5168\u505c\u5728\u6240\u8c13\u7684\u5dde\u9645\u516c\u8def\u4e0a\uff09\u7684\u4eba\u6765\u8bf4\uff0c\u77e5\u9053\u8fd9\u6bb5\u7a7a\u95f2\u65f6\u95f4\u53ef […]<\/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\/9182"}],"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=9182"}],"version-history":[{"count":1,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/9182\/revisions"}],"predecessor-version":[{"id":9186,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/9182\/revisions\/9186"}],"wp:attachment":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9182"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9182"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9182"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}