{"id":1705,"date":"2018-12-11T07:54:42","date_gmt":"2018-12-11T07:54:42","guid":{"rendered":""},"modified":"2018-12-11T15:54:00","modified_gmt":"2018-12-11T07:54:00","slug":"%e5%af%b9%e4%ba%8e%e8%bf%87%e6%b5%81%e5%92%8c%e7%9f%ad%e8%b7%af%e4%bf%9d%e6%8a%a4%ef%bc%8c%e9%99%a4%e4%bf%9d%e9%99%a9%e4%b8%9d%e5%a4%96%e5%85%b6%e5%ae%9e%e8%bf%98%e6%9c%89%e6%9b%b4%e5%a4%9a","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=1705","title":{"rendered":"\u5bf9\u4e8e\u8fc7\u6d41\u548c\u77ed\u8def\u4fdd\u62a4\uff0c\u9664\u4fdd\u9669\u4e1d\u5916\u5176\u5b9e\u8fd8\u6709\u66f4\u591a"},"content":{"rendered":"
\u6700\u7b80\u5355\u7684\u76f4\u63a5\u6d4b\u91cf\u65b9\u6cd5\u662f\u4f7f\u7528\u5206\u6d41\uff08\u4e32\u8054\uff09\u7535\u6d41\u68c0\u6d4b\u7535\u963b\u5668\u6765\u6d4b\u91cf\u7535\u6d41\uff0c\u5176\u7279\u70b9\u662f\u7b80\u5355\u548c\u7ebf\u6027\u5316\u3002 \u6839\u636e\u6b27\u59c6\u5b9a\u5f8b\uff0c\u7535\u963b\u5668\u4e24\u7aef\u7535\u538b\u4ee3\u8868\u7535\u6d41\u5e45\u503c\u3002\u5bf9\u4e8e\u6c7d\u8f66\u7535\u6c60\u7ba1\u7406\u4e4b\u7c7b\u7684\u9ad8\u7535\u6d41\u7cbe\u5bc6\u5e94\u7528\uff0cVishay \u63d0\u4f9b WSBS8518L1000JK \u7b49\u7279\u5236\u5206\u6d41\u7535\u963b\u5668\uff0c\u65e2\u53ef\u4f5c\u4e3a\u72ec\u7acb\u5668\u4ef6\uff0c\u4e5f\u53ef\u96c6\u6210\u5230\u6a21\u5236\u5916\u58f3\u5185 (WSBM8518L1000JK) \u4ee5\u4fbf pc \u677f\u8fde\u63a5\uff08\u56fe 1\uff09\u3002<\/span> \u6700\u7b80\u5355\u7684\u76f4\u63a5\u6d4b\u91cf\u65b9\u6cd5\u662f\u4f7f\u7528\u5206\u6d41\uff08\u4e32\u8054\uff09\u7535\u6d41\u68c0\u6d4b\u7535\u963b\u5668\u6765\u6d4b\u91cf\u7535\u6d41\uff0c\u5176\u7279\u70b9\u662f\u7b80\u5355\u548c\u7ebf\u6027\u5316\u3002 \u6839\u636e\u6b27\u59c6\u5b9a\u5f8b\uff0c\u7535\u963b\u5668\u4e24\u7aef\u7535\u538b\u4ee3\u8868\u7535\u6d41\u5e45\u503c\u3002\u5bf9\u4e8e\u6c7d\u8f66\u7535\u6c60\u7ba1\u7406\u4e4b\u7c7b\u7684\u9ad8\u7535\u6d41\u7cbe\u5bc6\u5e94<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","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\/1705"}],"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=1705"}],"version-history":[{"count":0,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/1705\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1705"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1705"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1705"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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\n\u56fe 1\uff1a \u6700\u7b80\u5355\u7684\u76f4\u63a5\u6d4b\u91cf\u65b9\u6cd5\u662f\u4f7f\u7528\u5206\u6d41\uff08\u4e32\u8054\uff09\u7535\u6d41\u68c0\u6d4b\u7535\u963b\u5668\u6765\u6d4b\u91cf\u7535\u6d41\uff0c\u4f8b\u5982 Vishay Dale <\/i>WSBS8515L100JK<\/i> \u5206\u7acb\u5f0f\u7cbe\u5bc6\u5206\u6d41\u7535\u963b\u5668\uff08\u4e0a\uff09\u6216\u5176\u76f8\u5173\u5916\u58f3\uff08\u4e0b\uff09\u3002 \uff08\u56fe\u7247\u7531 Vishay Dale \u63d0\u4f9b\uff09<\/i>
\n
\n\u8be5\u5916\u58f3\u91c7\u7528 4 \u5f15\u811a\u6bcd\u5934\u63d2\u5ea7\uff0c\u4e0e\u6807\u51c6 Molex \u8fde\u63a5\u5668\u914d\u63a5\u3002 \u7535\u963b\u53ef\u4f4e\u81f3 100 µΩ\uff0c\u7535\u611f\u4e0d\u5230 5 nH\uff0c\u7535\u963b\u6e29\u5ea6\u7cfb\u6570 (TCR) \u4f4e\u4e8e ±20 ppm\/ºC\u3002<\/span>
\n
\n\u9ad8\u538b\u4fa7\u548c\u4f4e\u538b\u4fa7\u68c0\u6d4b<\/span>
\n
\n\u4f7f\u7528\u5206\u6d41\u7535\u963b\u5668\u65f6\uff0c\u60a8\u53ef\u4ee5\u5c06\u5176\u63d2\u5165\u8d1f\u8f7d\u548c\u56de\u8def\u4e4b\u95f4\uff08\u4f4e\u538b\u4fa7\u68c0\u6d4b\uff09\u6216\u8d1f\u8f7d\u548c<\/span>\u7535\u6e90\u4e4b\u95f4\uff08\u9ad8\u538b\u4fa7\u68c0\u6d4b\uff09\u3002 \u4f4e\u538b\u4fa7\u68c0\u6d4b\u5177\u6709\u7b80\u5355\u4e14\u6210\u672c\u4f4e\u7684\u4f18\u70b9\uff0c\u56e0\u4e3a\u5206\u6d41\u7535\u963b\u5668\u4ee5\u5730\u4e3a\u57fa\u51c6\uff0c\u5e76\u53ef\u4ee5\u4f7f\u7528\u6807\u51c6\u8fd0\u7b97\u653e\u5927\u5668\u8fdb\u884c\u7f13\u51b2\u3002 \u7f3a\u70b9\u4e4b\u4e00\u662f\u4f4e\u538b\u4fa7\u4f20\u611f\u5668\u65e0\u6cd5\u68c0\u6d4b\u8d1f\u8f7d\u4f4e\u538b\u4fa7\u7684\u5f00\u8def\u6216\u77ed\u8def\u60c5\u51b5\u3002 \u5206\u6d41\u7535\u963b\u8fd8\u4f1a\u589e\u52a0\u63a5\u5730\u901a\u8def\u4e2d\u7684\u7535\u963b\uff0c\u8fd9\u5728\u6709\u4e9b\u5e94\u7528\u4e2d\u662f\u4e0d\u53ef\u63a5\u53d7\u7684\u3002<\/span>
\n
\n\u9ad8\u538b\u4fa7\u68c0\u6d4b\u4e0d\u4f1a\u5f15\u5165\u4efb\u4f55\u63a5\u5730\u5e72\u6270\uff0c\u4f46\u5206\u6d41\u7535\u963b\u5668\u7684\u6bcf\u4fa7\u90fd\u6709\u4e00\u4e2a\u5171\u6a21\u7535\u538b\uff0c\u53ef\u80fd\u8d85\u51fa\u6807\u51c6\u8fd0\u7b97\u653e\u5927\u5668\u7684\u5171\u6a21\u8303\u56f4\u6216\u8d85\u8fc7\u5176\u7535\u6e90\u7535\u538b\u3002<\/span>
\n
\n\u5206\u6d41\u7535\u963b\u5668 IC<\/span>
\n
\n\u4e13\u4e3a\u68c0\u6d4b\u8fc7\u6d41\u60c5\u51b5\u800c\u8bbe\u8ba1\u7684 IC \u6709\u5f88\u591a\u79cd\uff0c\u4f8b\u5982\u6765\u81ea Texas Instruments \u7684 INA300 \u7535\u6d41\u68c0\u6d4b\u6bd4\u8f83\u5668\u3002 INA300 \u5de5\u4f5c\u7535\u6e90\u4e3a 5 V\uff0c\u4f46\u53ef\u4ee5\u9002\u5e94\u9ad8\u8fbe 36 V \u7684\u5171\u6a21\u7535\u538b\u3002\u8fc7\u6d41\u9608\u503c\u53ef\u8c03\u8282\u5e76\u4e14\u53ef\u901a\u8fc7\u6570\u6a21\u8f6c\u6362\u5668 (DAC) \u6216\u5916\u90e8\u7535\u963b\u5668\u8fdb\u884c\u8bbe\u7f6e\u3002 \u54cd\u5e94\u65f6\u95f4\u5728 10 μs \u548c 100 μs \u4e4b\u95f4\u3002 \u8b66\u62a5\u8f93\u51fa\u5f15\u811a\u6216\u8ddf\u968f\u8f93\u5165\u72b6\u6001\uff08\u900f\u660e\u6a21\u5f0f\uff09\uff0c\u6216\u5728\u8fc7\u6d41\u72b6\u6001\u540e\u9501\u95ed\u3002 \u5728\u95ed\u9501\u6a21\u5f0f\u4e0b\uff0c\u7cfb\u7edf\u5fae\u63a7\u5236\u5668\u6e05\u9664\u95ed\u9501\u4ee5\u786e\u8ba4\u6536\u5230\u8b66\u62a5\u3002<\/span>
\n
\n
\n\u56fe 2\uff1a Texas Instruments \u7684 <\/i>INA300<\/i> \u901a\u8fc7\u591a\u79cd\u529f\u80fd\u9488\u5bf9\u8fc7\u6d41\u60c5\u51b5\u63d0\u4f9b\u4fdd\u62a4\uff0c\u5305\u62ec\u53ef\u7f16\u7a0b\u9608\u503c\u7535\u538b\u548c\u54cd\u5e94\u65f6\u95f4\u3002 \uff08\u56fe\u7247\u7531 Texas Instruments \u63d0\u4f9b\uff09<\/i>
\n
\n\u867d\u7136\u4efb\u4f55\u7535\u6d41\u63a7\u5236\u5e94\u7528\u90fd\u53ef\u4ee5\u901a\u8fc7\u5728\u7cfb\u7edf\u5fae\u63a7\u5236\u5668\u4e2d\u6bd4\u8f83\u7535\u6d41\u4e0e\u53c2\u8003\u503c\uff0c\u4ece\u800c\u5b9e\u73b0\u8fc7\u6d41\u68c0\u6d4b\uff0c\u4f46\u5de5\u4e1a\u7535\u673a\u63a7\u5236\u548c DC\/DC \u8f6c\u6362\u5668\u7b49\u5e94\u7528\u53ef\u80fd\u9700\u8981\u9ad8\u901f\u8fc7\u6d41\u4fdd\u62a4\u4ee5\u907f\u514d\u635f\u574f\u4e0b\u6e38<\/span>\u5143\u5668\u4ef6\u3002<\/span>
\n
\n\u56fe 3 \u663e\u793a\u5177\u6709\u72ec\u7acb\u9ad8\u901f\u4fdd\u62a4<\/span>\u7535\u8def\u7684\u7535\u6d41\u63a7\u5236\u7cfb\u7edf\u3002 Analog Devices \u7684 AD8211 \u53ef\u653e\u5927\u5206\u6d41\u7535\u963b\u5668\u4e24\u7aef\u7684\u7535\u538b\u5e76\u63d0\u4f9b\u63a7\u5236\u56de\u8def\u7684\u53cd\u9988\u4fe1\u53f7\u3002 \u8be5\u5668\u4ef6\u53ef\u6291\u5236\u9ad8\u8fbe 65 V \u7684\u5171\u6a21\u7535\u538b\u5e76\u63d0\u4f9b\u63a5\u5730\u53c2\u8003\u7684\u7f13\u51b2\u8f93\u51fa\uff0c\u9002\u7528\u4e8e\u8fde\u63a5\u81f3\u6a21\u6570\u8f6c\u6362\u5668 (ADC)\u3002 <\/span>
\n
\n
\n\u56fe 3\uff1a <\/i>AD8211<\/i> \u548c <\/i>AD8214<\/i> \u7ec4\u5408\u5728\u4e00\u8d77\u5f62\u6210\u7535\u6d41\u76d1\u63a7\u548c\u68c0\u6d4b\u7cfb\u7edf\uff0c\u53ef\u4ee5\u5728\u4e0d\u5230 100 ns \u5185\u54cd\u5e94\u8fc7\u6d41\u60c5\u51b5\u3002 \uff08<\/i>\u56fe\u7247\u7531 <\/i>Analog Devices Inc. \u63d0\u4f9b\uff09<\/i>
\n
\n\u4fdd\u62a4\u529f\u80fd\u7531\u53e6\u4e00 Analog Devices \u5143\u5668\u4ef6 AD8214 \u63d0\u4f9b\u3002 \u8fd9\u662f\u4e00\u6b3e\u54cd\u5e94\u5feb\u901f\u3001\u5171\u6a21\u7535\u538b\u9ad8\u7684\u7535\u6d41\u5206\u6d41\u6bd4\u8f83\u5668\uff0c\u53ef\u4ee5\u5728 100 ns \u5185\u8fc5\u901f\u63d0\u4f9b\u8fc7\u6d41\u68c0\u6d4b\u4fe1\u53f7\u3002 AD8214 \u6709\u5185\u7f6e\u9f50\u7eb3\u7a33\u538b\u5668\uff0c\u4f7f\u5176\u5de5\u4f5c\u7535\u538b\u53ef\u9ad8\u8fbe 65 V\u3002<\/span>
\n
\n\u6545\u969c\u6765\u6e90<\/span>
\n
\n\u5bf9\u4e8e\u4f4e\u7535\u6d41\u5e94\u7528\uff0c\u53ef\u4ee5\u5c3d\u91cf\u964d\u4f4e\u6210\u672c\u5e76\u4f7f\u7528\u6807\u51c6\u529f\u7387\u7535\u963b\u5668\u4f5c\u4e3a\u5206\u6d41\u5668\u6765\u6d4b\u91cf\u7535\u6d41\uff0c\u4f46\u5206\u6d41\u5668\u7684\u5bb9\u5dee\u4f1a\u76f4\u63a5\u5f71\u54cd\u8fc7\u6d41\u68c0\u6d4b\u7684\u7cbe\u5ea6\u3002 \u5927\u7535\u963b\u503c\u53ef\u4ee5\u63d0\u9ad8\u4fe1\u53f7\u5e45\u503c\uff0c\u4f46\u4e5f\u4f1a\u4ea7\u751f\u8f83\u591a\u70ed\u91cf\u5e76\u5f15\u81f4\u6210\u672c\u589e\u52a0\uff0c\u56e0\u4e3a\u53ef\u80fd\u9700\u8981\u589e\u52a0\u6563\u70ed\u5668\u6216\u5176\u4ed6\u70ed\u91cf\u7ba1\u7406\u65b9\u6cd5\u3002<\/span>
\n\u5982\u679c\u5206\u6d41\u7535\u963b\u5668\u8981\u7528\u4f5c\u63a7\u5236\u7cfb\u7edf\u7684\u4e00\u90e8\u5206\uff08\u5982\u56fe 3 \u6240\u793a\uff09\uff0c\u7535\u538b\u4fe1\u53f7\u5c06\u6709\u8f83\u5927\u52a8\u6001\u8303\u56f4\uff0c\u56e0\u6b64\u4f4e\u5bb9\u5dee\u548c\u4f4e\u7535\u963b\u6e29\u5ea6\u7cfb\u6570 (TCR) \u7684\u7cbe\u5bc6\u7535\u963b\u5668\u662f\u9996\u9009\u3002<\/span>
\n
\n\u57fa\u4e8e Rds(ON) \u7684\u7535\u6d41\u68c0\u6d4b<\/span>
\n
\n\u68c0\u6d4b\u8fc7\u6d41\u60c5\u51b5\u7684\u53e6\u4e00\u65b9\u6cd5\u662f\u53bb\u9664\u5206\u6d41\u7535\u963b\u5668\uff0c\u4f7f\u7528\u529f\u7387 MOSFET \u4f5c\u4e3a\u68c0\u6d4b\u5668\u4ef6\u3002 \u56fe 4 \u663e\u793a Infineon AUIR3200S MOSFET \u9a71\u52a8\u5668\uff0c\u5176\u4e2d\u5305\u62ec\u77ed\u8def\u4fdd\u62a4\u529f\u80fd\u3002 <\/span>
\n
\n\u56fe 4\uff1a <\/i>AUIR3200S<\/i> \u662f\u96c6\u6210\u4e86\u8fc7\u6d41\u68c0\u6d4b\u548c\u6e29\u5ea6\u8865\u507f\u7684 MOSFET \u9a71\u52a8\u5668\u3002 \uff08\u56fe\u7247\u7531 Infineon Technology \u63d0\u4f9b\uff09<\/i>
\n
\n\u8be5\u5668\u4ef6\u68c0\u6d4b\u7535\u6e90 FET \u4e0a\u7684\u538b\u964d\uff0c\u8fd9\u4e2a\u503c\u662f FET \u7684\u8d1f\u8f7d\u7535\u6d41\u548c RDS(ON) \u7684\u51fd\u6570\u3002 MOSFET \u6253\u5f00\u65f6\uff0c\u6e90 VS \u4e0a\u7684\u7535\u538b\u6309\u4e0b\u5f0f\u5f97\u51fa\uff1a<\/span>
\n
\nVS \u662f AUIR3200S \u6e90\u5f15\u811a (S) \u7684\u8f93\u5165\uff0c\u4e0e\u57fa\u51c6\u7535\u538b VDS \u8fdb\u884c\u6bd4\u8f83\u3002 <\/span>
\n
\n
\nIVDS \u901a\u8fc7\u5185\u7f6e\u7535\u6d41\u6e90\u8bbe\u7f6e\u4e3a 1 mA\uff0c\u4ee5\u4f7f RVDS \u6709\u6548\u786e\u5b9a VDS \u7684\u503c\u3002 VBAT \u53ef\u80fd\u4f1a\u6709\u4e0d\u540c\uff0c\u7279\u522b\u662f\u5728\u6c7d\u8f66\u5e94\u7528\u4e2d\uff0c\u4f46\u4e0d\u4f1a\u5f71\u54cd\u4e24\u4e2a\u7535\u538b\u7684\u6bd4\u8f83\u3002<\/span>
\n
\n\u8fc7\u6d41\u65f6\uff0cVS \u8d85\u51fa VDS\uff0c\u8fd9\u79cd\u60c5\u51b5\u4f1a\u89e6\u53d1\u5185\u7f6e\u6bd4\u8f83\u5668\u5e76\u5173\u95ed MOSFET\u3002<\/span>
\n
\n\u4e3a\u51cf\u5c11\u9519\u8bef\uff0c\u5e94\u8be5\u4e3a RVDS \u9009\u62e9\u4f4e\u5bb9\u5dee\u503c\u3002 \u529f\u7387 MOSFET \u7684 RDS(ON) \u503c\u5bf9\u6f0f\u7535\u6d41\u76f8\u5bf9\u4e0d\u654f\u611f\uff0c\u4f46\u4f1a\u968f\u7740\u7ed3\u6e29 (TJ) \u7684\u5347\u9ad8\u800c\u5347\u9ad8\u3002 \u4e3a\u8fdb\u884c\u8865\u507f\uff0cAUIR3200S \u7684 IVDS \u7535\u6d41\u6e90\u5185\u8bbe\u8ba1\u4e86\u6b63\u6e29\u5ea6\u7cfb\u6570\u3002 \u8bf7\u6ce8\u610f\uff0cAUIR3200S \u5e94\u8be5\u5c3d\u53ef\u80fd\u9760\u8fd1 MOSFET \u5b89\u88c5\u4ee5\u4f7f\u4e24\u4e2a\u5668\u4ef6\u7684\u6e29\u5ea6\u76f8\u7b49\u3002<\/span>
\n
\n\u9ad8\u7535\u6d41\u5e94\u7528\u4e2d\u7684\u76f4\u63a5\u6d4b\u91cf<\/span>
\n
\n\u5bf9\u4e8e\u9ad8\u7535\u6d41\u5e94\u7528\uff0c\u5206\u6d41\u7535\u963b\u5668\u53ef\u80fd\u56e0\u4e3a\u589e\u52a0\u7684\u70ed\u91cf\u8fc7\u591a\u800c\u4e0d\u80fd\u5e94\u7528\uff0c\u7279\u522b\u662f\u5728\u6c7d\u8f66\u5f15\u64ce\u76d6\u6a21\u5757\u7b49\u9ad8\u6e29\u73af\u5883\u4e0b\u3002 \u5728\u8fd9\u4e9b\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u91c7\u7528\u5747\u6d41 MOSFET \u89e3\u51b3\u65b9\u6848\uff0c\u5b9e\u73b0\u4f4e\u6210\u672c\u7535\u6d41\u6d4b\u91cf\u3002 <\/span>
\n
\n\u5747\u6d41 MOSFET \u5982\u4f55\u5de5\u4f5c\uff1f \u73b0\u4ee3\u529f\u7387 MOSFET \u5305\u62ec\u6570\u5343\u4e2a\u76f8\u540c\u7684\u5e76\u8054\u6676\u4f53\u7ba1\u5355\u5143\uff0c\u4ee5\u6700\u5927\u9650\u5ea6\u5730\u964d\u4f4e\u603b\u5bfc\u901a\u7535\u963b (RDS(ON))\u3002 \u7535\u6d41\u68c0\u6d4b MOSFET \u4f7f\u7528\u8fd9\u4e9b\u5e76\u8054\u5355\u5143\u7684\u4e00\u5c0f\u90e8\u5206\u6765\u5f62\u6210\u4e0e\u529f\u7387\u5668\u4ef6\u9694\u79bb\u7684\u53e6\u4e00\u4e2a\u4f4e\u529f\u8017 MOSFET\uff08\u4e5f\u79f0\u4e3a senseFET\uff09\uff0c\u5b83\u6709\u4e00\u4e2a\u5171\u6805\u6781\u548c\u6f0f\u6781\uff0c\u4f46\u6709\u4e00\u4e2a\u72ec\u7acb\u6e90\u4f1a\u88ab\u5f15\u51fa\u540e\u4f5c\u4e3a SENSE \u5f15\u811a\u3002 \u56fe 5 \u6240\u793a\u4e3a\u7b49\u6548\u7535\u8def\u3002<\/span>
\n
\n
\n\u56fe 5\uff1a \u53ef\u7528\u4e8e\u5728\u9ad8\u7535\u6d41\u5e94\u7528\u4e2d\u8fdb\u884c\u76f4\u63a5\u68c0\u6d4b\u7684\u7535\u6d41\u68c0\u6d4b MOSFET \u7b49\u6548\u7535\u8def\u3002 \uff08\u56fe\u7247\u7531 <\/i>NXP Semiconductors<\/i> \u63d0\u4f9b\uff09<\/i>
\n
\n\u5f53\u4e3b\u529f\u7387\u6676\u4f53\u7ba1\u6253\u5f00\u65f6\uff0cSENSE \u5f15\u811a\u8f93\u51fa\u7535\u6d41 ISENSE\uff0c\u5b83\u4e0e\u4e3b\u7535\u6d41 Iload \u6210\u6bd4\u4f8b\uff1a\u901a\u5e38\u6bd4\u7387\u4e3a 1:500 \u6216 0.2%\u3002<\/span>
\n
\n\u56fe 6 \u663e\u793a\u7528\u4e8e\u7535\u6d41\u68c0\u6d4b MOSFET \u7684\u5178\u578b\u7535\u8def\u3002 \u4e00\u4e2a\u53cc\u8fd0\u7b97\u653e\u5927\u5668\u7535\u8def\u5c06 ISENSE \u8f6c\u6362\u4e3a\u7cfb\u7edf\u5fae\u63a7\u5236\u5668\u7684\u7535\u538b\u8f93\u5165\u3002 <\/span>
\n
\n
\n\u56fe 6\uff1a \u5747\u6d41 MOSFET \u5230\u7cfb\u7edf\u5fae\u63a7\u5236\u5668\u7684\u8fde\u63a5\u3002 \uff08\u56fe\u7247\u7531 NXP Semiconductors \u63d0\u4f9b\uff09<\/i>
\n
\nIXYS \u7684 IXTN660N04T4 \u4fbf\u662f\u7528\u4e8e\u9ad8\u7535\u6d41\u5e94\u7528\u7684 N \u6c9f\u9053\u7535\u6d41\u68c0\u6d4b FET \u7684\u4e00\u4e2a\u5b9e\u4f8b\u3002 \u8be5\u5668\u4ef6\u53ef\u5904\u7406\u9ad8\u8fbe 660 A \u7684\u6f0f\u7535\u6d41\u3002<\/span>
\n
\n\u7535\u6d41\u76d1\u63a7\u7535\u8def\u7684\u51c6\u786e\u5ea6\u53d6\u51b3\u4e8e RSENSE \u7684\u5bb9\u5dee\uff0c\u4f46\u5bf9\u4e8e\u4fdd\u9669\u4e1d\u66ff\u4ee3\u5e94\u7528\uff0c5% \u5230 10% \u90fd\u8db3\u4ee5\u6ee1\u8db3\u9700\u6c42\u3002 \u5178\u578b\u7684\u7535\u6d41\u68c0\u6d4b FET \u7684\u68c0\u6d4b\u8f93\u51fa\u6709 ±5% \u6ce2\u52a8\uff0c\u4f46\u6b64\u6027\u80fd\u8db3\u4ee5\u6ee1\u8db3\u8fc7\u6d41\u6216\u77ed\u8def\u60c5\u51b5\u9700\u6c42\u3002 \u56fe 6 \u4e2d\u7684\u7535\u6d41\u4fe1\u53f7 VOUT \u5b9e\u8d28\u4e0a\u662f\u6a21\u62df\u4fe1\u53f7\uff0c\u5e76\u8fde\u63a5\u5230\u6a21\u6570\u8f6c\u6362\u5668 (ADC) \u8f93\u5165\u7aef\uff0c\u4f46\u5916\u90e8\u7535\u8def\u53ef\u8f7b\u677e\u4fee\u6539\u4ee5\u751f\u6210\u6570\u5b57\u8fc7\u6d41\u4fe1\u53f7\u3002<\/span>
\n
\n\u7ed3\u8bba<\/span>
\n
\n\u5bf9\u4e8e\u8fc7\u6d41\u548c\u77ed\u8def\u4fdd\u62a4\uff0c\u9664\u4fdd\u9669\u4e1d\u5916\u8bbe\u8ba1\u4eba\u5458\u6709\u5f88\u591a\u9009\u9879\u3002 \u867d\u7136\u589e\u52a0\u590d\u6742\u5ea6\u53ef\u80fd\u4f1a\u63d0\u5347 BOM \u6210\u672c\uff0c\u4f46\u4ece\u603b\u62e5\u6709\u6210\u672c (TCO) \u8003\u8651\uff0c\u6210\u672c\u589e\u52a0\u662f\u503c\u5f97\u7684\uff0c\u5e76\u6709\u53ef\u80fd\u964d\u4f4e\u4ea7\u54c1\u6574\u4e2a\u751f\u547d\u5468\u671f\u7684\u603b\u6210\u672c\u3002<\/span>
<\/p>\n","protected":false},"excerpt":{"rendered":"