{"id":22233,"date":"2023-02-02T00:00:23","date_gmt":"2023-02-01T16:00:23","guid":{"rendered":"https:\/\/techclass.wfjydl.com\/?p=22233"},"modified":"2023-02-27T16:10:49","modified_gmt":"2023-02-27T08:10:49","slug":"%e5%9c%a8%e6%a1%a5%e5%bc%8f%e7%bb%93%e6%9e%84%e4%b8%ad%e7%9a%84%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a1%b9-%e6%8e%a2%e5%a4%b4%e7%9a%84cmrr","status":"publish","type":"post","link":"https:\/\/techclass.wfjydl.com\/knowledge\/sic\/a-sic\/12564","title":{"rendered":"\u5728\u6865\u5f0f\u7ed3\u6784\u4e2d\u7684\u6ce8\u610f\u4e8b\u9879 -\u63a2\u5934\u7684CMRR"},"content":{"rendered":"<div id=\"keypoint-sic\" class=\"keypoint indent\">\n<h4>\u5173\u952e\u8981\u70b9<\/h4>\n<div class=\"c-box-1__content\">\n<p>\u30fb\u5728\u5bf9\u6865\u5f0f\u7ed3\u6784\u4e2d\u7684HS MOSFET\u8fdb\u884c\u6d4b\u8bd5\u65f6\uff0c\u6240\u7528\u63a2\u5934\u7684\u5171\u6a21\u6291\u5236\u6bd4\uff08CMRR\uff09\u5728\u9ad8\u9891\u533a\u57df\u53ef\u80fd\u4f1a\u964d\u4f4e\uff0c\u6ce2\u5f62\u6ce2\u52a8\u53ef\u80fd\u4f1a\u589e\u52a0\u3002<\/p>\n<p>\u30fb\u5c24\u5176\u662f\u5728\u6d4b\u91cfV<sub>GS<\/sub>\u65f6\uff0c\u6d89\u53ca\u5230\u6d4b\u91cf\u6570\u4f0f\u7ea7\u7684\u6d6a\u6d8c\uff0c\u56e0\u6b64\u9700\u8981\u533a\u5206\u89c2\u6d4b\u5230\u7684\u6ce2\u5f62\u662f\u539f\u59cb\u6ce2\u5f62\u8fd8\u662fCMRR\u4e0d\u8db3\u5f15\u8d77\u7684\u6ce2\u52a8\u6ce2\u5f62\u3002<\/p>\n<p>\u30fb\u5149\u9694\u79bb\u5dee\u5206\u63a2\u5934\u7684CMRR\u9891\u7387\u7279\u6027\u975e\u5e38\u597d\uff0c\u53ef\u89c2\u6d4b\u5230\u539f\u59cb\u6ce2\u5f62\u3002<\/p>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<h2>SiC MOSFET\u6805-\u6e90\u7535\u538b\u6d4b\u91cf\uff1a\u5728\u6865\u5f0f\u7ed3\u6784\u4e2d\u7684\u6ce8\u610f\u4e8b\u9879\uff0d<br \/>\n\u63a2\u5934\u7684CMRR<\/h2>\n<p>\u5728\u5bf9\u6865\u5f0f\u7ed3\u6784\u4e2d\u7684\u9ad8\u8fb9\uff08HS\uff09MOSFET\u8fdb\u884c\u6d4b\u8bd5\u65f6\uff0c\u901a\u5e38\u4f7f\u7528\u9ad8\u538b\u5dee\u5206\u63a2\u5934\u6216\u5dee\u5206\u63a2\u5934\uff08*4\uff09\u6765\u89c2\u6d4b\u6ce2\u5f62\uff0c\u4f46\u6240\u7528\u63a2\u5934\u7684\u5171\u6a21\u6291\u5236\u6bd4\uff08CMRR\uff09\u5728\u9ad8\u9891\u533a\u57df\u53ef\u80fd\u4f1a\u964d\u4f4e\uff0c\u6ce2\u5f62\u6ce2\u52a8\u53ef\u80fd\u4f1a\u589e\u52a0\u3002\u5c24\u5176\u662f\u5728\u6d4b\u91cf\u6805-\u6e90\u7535\u538bV<sub>GS<\/sub>\u65f6\uff0c\u6d89\u53ca\u5230\u6d4b\u91cf\u51e0\u4f0f\u7ea7\u7684\u6d6a\u6d8c\uff0c\u56e0\u6b64\u9700\u8981\u533a\u5206\u89c2\u6d4b\u5230\u7684\u6ce2\u5f62\u662f\u539f\u59cb\u6ce2\u5f62\u8fd8\u662fCMRR\u4e0d\u8db3\u5f15\u8d77\u7684\u6ce2\u52a8\u6ce2\u5f62\u3002<\/p>\n<p>\u56fe13\u4e3a\u5728\u6865\u5f0f\u7ed3\u6784\u4e2dHS\u5f00\u5173\u65f6\u548cLS\u5f00\u5173\u65f6\u7684\u6ce2\u5f62\u6bd4\u8f83\u3002\u6240\u7528\u7684\u5dee\u5206\u7535\u538b\u63a2\u5934\u662f\u65e5\u672c\u6a2a\u6cb3\uff08YOKOGAWA\uff09\u516c\u53f8\u751f\u4ea7\u7684701297\uff08150MHz\uff0c1400V\uff09\u3002\u901a\u8fc7\u5bf9\u6bd4\u6ce2\u5f62\u53ef\u4ee5\u770b\u51fa\uff0cLS\u5f00\u5173\u65f6\u7684\u6362\u6d41\u4fa7\uff08HS\uff09V<sub>GS<\/sub>\u6ce2\u52a8\u8f83\u5927\u3002\u8fd9\u662f\u7531\u4e8e\u5f53\u6362\u6d41\u4fa7\u4ee520\uff5e50V\/ns\u7684\u9ad8\u901fdV\/dt\u53d8\u5316\u65f6\uff0c\u63a2\u5934\u7684CMRR\u964d\u4f4e\u800c\u5f15\u8d77\u7684\u3002<\/p>\n<p class=\"txt-al-center\"><img decoding=\"async\" src=\"https:\/\/techclass.wfjydl.com\/wp-content\/uploads\/2023\/02\/sic_ap4_5_f1.png\" alt=\"HS\u3092\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u3057\u305f\u5834\u5408\u3068LS\u3092\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u5834\u5408\u306eVGS\u6ce2\u5f62\u306e\u6bd4\u8f03\" \/><br \/>\n<strong>\u56fe13. HS\u5f00\u5173\u65f6\u548cLS\u5f00\u5173\u65f6\u7684V<sub>GS<\/sub>\u6ce2\u5f62\u6bd4\u8f83<\/strong><\/p>\n<p>\u56fe14\u662f\u65e8\u5728\u786e\u8ba4\u8fd9\u4e2a\u539f\u7406\u800c\u5bf9\u5dee\u5206\u7535\u538b\u63a2\u5934\u7684CMRR\u6027\u80fd\u8fdb\u884c\u6d4b\u8bd5\u7684\u7ed3\u679c\u3002\u8be5\u6d4b\u8bd5\u662f\u5c06\u7535\u538b\u63a2\u5934\u5934\u90e8\u7684\u6b63\u6781\u548c\u8d1f\u6781\u5206\u522b\u8fde\u63a5\u5230HS\u548cLS\u7684Driver Source\u5f15\u811a\u8fdb\u884c\u6d4b\u8bd5\u7684\u3002\u8fd9\u79cd\u6d4b\u8bd5\u65b9\u6cd5\u5728\u6cf0\u514b\uff08Tektronix\uff09\u7684\u5e94\u7528\u6307\u5357\u201cABCs of Probes\u201d(*5)\u4e2d\u6709\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u8bf7\u53c2\u8003\u3002<\/p>\n<p class=\"txt-al-center\"><img decoding=\"async\" src=\"https:\/\/techclass.wfjydl.com\/wp-content\/uploads\/2023\/02\/sic_ap4_5_f2.png\" alt=\"\u7d76\u7e01\u578b\u96fb\u5727\u30d7\u30ed\u30fc\u30d6\u306eCMRR\u6027\u80fd\" \/><br \/>\n<strong>\u56fe14. \u9694\u79bb\u578b\u7535\u538b\u63a2\u5934\u7684CMRR\u6027\u80fd<\/strong><\/p>\n<p>\u5728\u56fe14\u4e2d\uff0c\u5bfc\u901a\u65f6\u548c\u5173\u65ad\u65f6\u7684\u6ce2\u5f62\u4e2d\uff0c\u5728Driver Source\u5f15\u811a\u7684\u7535\u4f4d\u5904\uff0cHS\u548cLS\u5747\u5728\u5f00\u5173\u65f6\u51fa\u73b0\u7535\u538b\u6ce2\u52a8\u3002\u7136\u800c\uff0c\u5728\u5f00\u5173\u52a8\u4f5c\u7ed3\u675f\u540e\uff0cLS\u6062\u590d\u5230\u4e86\u5f00\u5173\u524d\u7684\u72b6\u6001\uff0c\u800cHS\u5219\u6b8b\u7559\u4e86\u4e00\u5b9a\u7535\u4f4d\u3002\u8fd9\u5c31\u662f\u9020\u6210CMRR\u8bef\u5dee\u7684\u539f\u56e0\u3002\u8fd9\u79cd\u6b8b\u4f59\u7535\u4f4d\u4f1a\u968f\u7740\u65f6\u95f4\u7684\u6d41\u901d\uff08\u6570\u5fae\u79d2\uff09\u800c\u6d88\u5931\u3002\u5728\u672c\u6b21\u6d4b\u8bd5\u4e2d\uff0cDriver Source\u5f15\u811a\u7684\u7535\u4f4d\u5728V<sub>DS<\/sub>\u4e0a\u5347\u65f6\u5411\u8d1f\u4fa7\u53d8\u5316\uff0c\u5728VDS\u4e0b\u964d\u65f6\u5411\u6b63\u4fa7\u53d8\u5316\uff0c\u4e0d\u8fc7\u53d7\u5dee\u5206\u63a2\u5934\u7279\u6027\u7684\u5f71\u54cd\uff0c\u6709\u65f6\u4e5f\u4f1a\u5411\u76f8\u53cd\u7684\u65b9\u5411\u53d8\u5316\u3002\u6700\u8fd1\uff0c\u6d4b\u91cf\u8bbe\u5907\u5236\u9020\u5546\u63a8\u51fa\u4e86\u4e00\u79cd\u5149\u9694\u79bb\u5dee\u5206\u63a2\u5934\uff0c\u5b83\u4e0d\u53d7CMRR\u7684\u5f71\u54cd\uff0c\u4f5c\u4e3a\u53ef\u4ee5\u51c6\u786e\u6d4b\u91cf\u6ce2\u5f62\u7684\u6709\u6548\u89e3\u51b3\u65b9\u6848\u800c\u5907\u53d7\u5173\u6ce8\u3002<\/p>\n<p>\u4e0b\u9762\u4ecb\u7ecd\u4e00\u4e0b\u5149\u9694\u79bb\u5dee\u5206\u63a2\u5934\u4e0e\u666e\u901a\u9ad8\u538b\u5dee\u5206\u63a2\u5934\u4e4b\u95f4\u7684\u6027\u80fd\u5dee\u5f02\u3002\u5149\u9694\u79bb\u5dee\u5206\u63a2\u5934\u662f\u91c7\u7528\u6cf0\u514b\uff08Tektronix\uff09IsoVu<sup>\u00ae<\/sup>\u6280\u672f\u7684\u3001\u7531\u6cf0\u514b\u751f\u4ea7\u7684\u4ea7\u54c1\uff08TIVH08\u3001MMCX50X\uff09\u3002<\/p>\n<p>\u7528\u4e8e\u6d4b\u8bd5\u7684\u7535\u8def\u677f\uff08P02SCT3040KR-EVK-001\uff09\u4e0a\uff0c\u6709\u7528\u6765\u5b89\u88c5MMXC\u8fde\u63a5\u5668\u7684\u56fe\u6848\uff0c\u8be5\u8fde\u63a5\u5668\u53ef\u4ee5\u8fde\u63a5\u5149\u9694\u79bb\u63a2\u5934\u3002\u5982\u56fe15\u6240\u793a\uff0c\u5728\u6d4b\u8bd5\u65f6\uff0c\u540c\u65f6\u8fde\u63a5\u4e86\u5149\u9694\u79bb\u63a2\u5934\u548c\u666e\u901a\u7684\u9ad8\u538b\u5dee\u5206\u63a2\u5934\u3002\u6b63\u5982\u6b64\u524d\u4ecb\u7ecd\u8fc7\u7684\uff0c\u4e3a\u4e86\u5c3d\u53ef\u80fd\u5730\u6d88\u9664<a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/sic\/a-sic\/14456\">\u6d4b\u91cf\u4f4d\u7f6e<\/a>\u548c\u5dee\u5206\u7535\u538b\u63a2\u5934\u7684<a href=\"https:\/\/techclass.wfjydl.com\/knowledge\/sic\/a-sic\/12499\">\u5b89\u88c5\u4f4d\u7f6e<\/a>\u5bf9\u6ce2\u5f62\u9020\u6210\u7684\u5f71\u54cd\uff0c\u7535\u538b\u63a2\u5934\u7684\u6d4b\u91cf\u4f4d\u7f6e\u662f\u5728SiC MOSFET\u6b63\u4e0b\u65b9\u710a\u63a5\u4e86\u4e00\u6839\u77ed\u7684\u5ef6\u957f\u7ebf\uff0c\u5e76\u8fde\u63a5\u4e86\u4e00\u4e2a100\u03a9\u7684\u963b\u5c3c\u7535\u963b\u3002\u56fe16\u4e3a\u4e24\u79cd\u63a2\u5934\u7684\u6805-\u6e90\u7535\u538bV<sub>GS<\/sub>\u6ce2\u5f62\u3002<\/p>\n<p class=\"txt-al-center\"><img decoding=\"async\" src=\"https:\/\/techclass.wfjydl.com\/wp-content\/uploads\/2023\/02\/sic_ap4_5_f3.png\" alt=\"\u4e00\u822c\u7684\u306a\u9ad8\u96fb\u5727\u5dee\u52d5\u30d7\u30ed\u30fc\u30d6\uff08\u5965\uff09\u3068\u5149\u30a2\u30a4\u30bd\u30ec\u30fc\u30b7\u30e7\u30f3\u578b\u5dee\u52d5\u30d7\u30ed\u30fc\u30d6\uff08\u624b\u524d\uff09\" \/><br \/>\n<strong>\u56fe15. \u5149\u9694\u79bb\u5dee\u5206\u63a2\u5934\uff08\u4e0b\uff09\u4e0e\u666e\u901a\u7684\u9ad8\u538b\u5dee\u5206\u63a2\u5934\uff08\u4e0a\uff09<\/strong><\/p>\n<p class=\"txt-al-center\"><img decoding=\"async\" src=\"https:\/\/techclass.wfjydl.com\/wp-content\/uploads\/2023\/02\/sic_ap4_5_f4.png\" alt=\"\u4e00\u822c\u7684\u306a\u9ad8\u96fb\u5727\u5dee\u52d5\u30d7\u30ed\u30fc\u30d6\u3068\u5149\u30a2\u30a4\u30bd\u30ec\u30fc\u30b7\u30e7\u30f3\u578b\u5dee\u52d5\u30d7\u30ed\u30fc\u30d6\u306b\u3088\u3063\u3066\u89b3\u6e2c\u3057\u305fHS\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u6642\u306eVGS\u6ce2\u5f62\u3068CMRR\u6027\u80fd\u6bd4\u8f03\" \/><br \/>\n<strong>\u56fe16. \u4f7f\u7528\u5149\u9694\u79bb\u5dee\u5206\u63a2\u5934\u548c\u666e\u901a\u7684\u9ad8\u538b\u5dee\u5206\u63a2\u5934\u89c2\u6d4b\u5230\u7684HS\u5f00\u5173\u65f6\u7684V<sub>GS<\/sub>\u6ce2\u5f62\u548cCMRR\u6027\u80fd\u6bd4\u8f83<\/strong><\/p>\n<p>\u7531\u4e8eHS\u6b63\u5728\u6267\u884c\u5f00\u5173\u52a8\u4f5c\uff0c\u56e0\u6b64HS\u7684\u6805-\u6e90\u7535\u538bV<sub>GS<\/sub>\u7531\u4e8e\u666e\u901a\u9ad8\u538b\u5dee\u5206\u63a2\u5934\u7684CMRR\u964d\u4f4e\u800c\u5bfc\u81f4\u5728\u5bfc\u901a\u540e\u8d85\u8fc718V\u9a71\u52a8\u7535\u538b\uff0c\u5e76\u5728\u5173\u65ad\u540e\u964d\u81f30V\u4ee5\u4e0b\uff08\u7eff\u7ebf\uff09\u3002\u800c\u5149\u9694\u79bb\u63a2\u5934\u572818V\u548c0V\u5904\u6ca1\u6709\u663e\u793a\u51fa\u53ef\u80fd\u53d7CMRR\u5f71\u54cd\u7684\u6ce2\u52a8\uff0c\u7531\u6b64\u53ef\u4ee5\u8ba4\u4e3a\u91c7\u7528\u5149\u9694\u79bb\u63a2\u5934\u80fd\u591f\u89c2\u6d4b\u5230\u51c6\u786e\u7684\u5f00\u5173\u5de5\u4f5c\u6ce2\u5f62\u3002<\/p>\n<p>\u4ece\u56fe17\u6240\u793a\u7684CMRR\u9891\u7387\u7279\u6027\u6bd4\u8f83\u4e2d\u4e5f\u53ef\u4ee5\u770b\u51fa\u8fd9\u4e9b\u7ed3\u679c(*4\uff0c*6) \u3002\u4ece\u56fe\u4e2d\u53ef\u4ee5\u770b\u51fa\uff0c\u4e0e\u9ad8\u538b\u5dee\u5206\u63a2\u5934\u76f8\u6bd4\uff0c\u5149\u9694\u79bb\u63a2\u5934\u7684CMRR\u9891\u7387\u7279\u6027\u8981\u597d\u5f97\u591a\uff0c\u5c31\u8fde\u6570\u5341MHz\u7684\u5171\u6a21\u566a\u58f0\u90fd\u53ef\u4ee5\u6d88\u9664\u5e72\u51c0\u3002<\/p>\n<p class=\"txt-al-center\"><img decoding=\"async\" src=\"https:\/\/techclass.wfjydl.com\/wp-content\/uploads\/2023\/02\/sic_ap4_5_f5.png\" alt=\"\u4e00\u822c\u7684\u306a\u9ad8\u96fb\u5727\u5dee\u52d5\u30d7\u30ed\u30fc\u30d6\u3068\u5149\u30a2\u30a4\u30bd\u30ec\u30fc\u30b7\u30e7\u30f3\u578b\u5dee\u52d5\u30d7\u30ed\u30fc\u30d6\u306eCMRR\u7279\u6027\u306e\u6bd4\u8f03\" \/><br \/>\n<strong>\u56fe17. \u5149\u9694\u79bb\u5dee\u5206\u63a2\u5934\u4e0e\u666e\u901a\u9ad8\u538b\u5dee\u5206\u63a2\u5934\u4e4b\u95f4\u7684CMRR\u7279\u6027\u6bd4\u8f83<\/strong><\/p>\n<p style=\"font-size: 90%;\">IsoVu<sup>\u00ae<\/sup>\u662f\u6cf0\u514b\uff08Tektronix\uff09\u516c\u53f8\u7684\u6ce8\u518c\u5546\u6807\u3002<br \/>\n*4. \u53c2\u8003\u8d44\u6599\uff1a\u201c\u9006\u53d8\u7535\u8def\u7684\u8bc4\u4f30\u65b9\u6cd5\u201d\u5e94\u7528\u6307\u5357\uff08V1.3\uff09\u5ca9\u5d0e\u901a\u4fe1\u673a\u682a\u5f0f\u4f1a\u793e\uff0c2018\u5e7412\u6708<br \/>\n*5. \u53c2\u8003\u8d44\u6599\uff1a\u201cABCs of Probes\u201d Application Note (No. EA 60W-6053-14\uff09Tektronix, 2016\u5e741\u6708<br \/>\n*6. \u53c2\u8003\u8d44\u6599\uff1a\u201cComplete ISOLATION Extreme COMMON MODE REJECTION\u201d White Paper\uff080\/16 51W-60485-1\uff09Tektronix, 2016<\/p>\n<section class=\"c-section-download\">\n<h2 class=\"c-ttl-4\" style=\"border-color: #293cb5;\">\u3010\u8d44\u6599\u4e0b\u8f7d\u3011\u4e86\u89e3\u78b3\u5316\u7845\u529f\u7387\u5143\u5668\u4ef6\u53ca\u5176\u5e94\u7528\u6848\u4f8b<\/h2>\n<p><!-- [\/c-ttl-4] --><\/p>\n<div class=\"fbox\">\n<div class=\"c-txt-2 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href=\"https:\/\/techclass.wfjydl.com\/knowledge\/sic\/a-sic\/14456\">\u6d4b\u91cf\u4f4d\u7f6e\u7684\u9009\u62e9<\/a><\/li>\n<li class=\"c-list-7__item\"><a class=\"c-list-7__link\" href=\"https:\/\/techclass.wfjydl.com\/knowledge\/sic\/a-sic\/12499\">\u63a2\u5934\u5934\u90e8\u7684\u5b89\u88c5\u4f4d\u7f6e<\/a><\/li>\n<li class=\"c-list-7__item\"><a class=\"c-list-7__link\" href=\"https:\/\/techclass.wfjydl.com\/knowledge\/sic\/a-sic\/12568\">SiC MOSFET\u6805-\u6e90\u7535\u538b\u6d4b\u91cf \uff0d\u603b\u7ed3\uff0d<\/a><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"\u5173\u952e\u8981\u70b9 \u30fb\u5728\u5bf9\u6865\u5f0f\u7ed3\u6784\u4e2d\u7684HS MOSFET\u8fdb\u884c\u6d4b\u8bd5\u65f6\uff0c\u6240\u7528\u63a2\u5934\u7684\u5171\u6a21\u6291\u5236\u6bd4\uff08CMRR\uff09\u5728\u9ad8\u9891\u533a\u57df\u53ef\u80fd\u4f1a\u964d\u4f4e\uff0c\u6ce2\u5f62\u6ce2\u52a8\u53ef\u80fd\u4f1a\u589e\u52a0\u3002 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