{"id":322,"date":"2017-12-09T01:47:57","date_gmt":"2017-12-09T01:47:57","guid":{"rendered":""},"modified":"2017-12-09T09:49:54","modified_gmt":"2017-12-09T01:49:54","slug":"mosfet%e7%9a%84%e9%a9%b1%e5%8a%a8%e6%8a%80%e6%9c%af%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=322","title":{"rendered":"MOSFET\u7684\u9a71\u52a8\u6280\u672f\u8be6\u89e3"},"content":{"rendered":"
\n\t\u9996\u5148\uff0c\u6765\u505a\u4e00\u4e2a\u5b9e\u9a8c\uff0c\u628a\u4e00\u4e2aMOSFET\u7684G\u60ac\u7a7a\uff0c\u7136\u540e\u5728DS\u4e0a\u52a0\u7535\u538b\uff0c\u90a3\u4e48\u4f1a\u51fa\u73b0\u4ec0\u4e48\u60c5\u51b5\u5462\uff1f\u5f88\u591a\u5de5\u7a0b\u5e08\u90fd\u77e5\u9053\uff0cMOS\u4f1a\u5bfc\u901a\u751a\u81f3\u51fb\u7a7f\u3002\u8fd9\u662f\u4e3a\u4ec0\u4e48\u5462\uff1f\u56e0\u4e3a\u6211\u6839\u672c\u6ca1\u6709\u52a0\u9a71\u52a8\u7535\u538b\uff0cMOS\u600e\u4e48\u4f1a\u5bfc\u901a\uff1f\u7528\u4e0b\u9762\u7684\u56fe\uff0c\u6765\u505a\u4e2a\u4eff\u771f\uff1a<\/p>\n
\n\t<\/p>\n
\n\t\u53bb\u63a2\u6d4bG\u6781\u7684\u7535\u538b\uff0c\u53d1\u73b0\u7535\u538b\u6ce2\u5f62\u5982\u4e0b\uff1a<\/p>\n
\n\t <\/p>\n
\n\tG\u6781\u7684\u7535\u538b\u5c45\u7136\u67094V\u591a\uff0c\u96be\u602aMOSFET\u4f1a\u5bfc\u901a\uff0c\u8fd9\u662f\u56e0\u4e3aMOSFET\u7684\u5bc4\u751f\u53c2\u6570\u5728\u6363\u9b3c\u3002<\/p>\n
\n\t\u5173\u4e8eMOSFET\u7684\u5bc4\u751f\u53c2\u6570\u7684\u63cf\u8ff0\uff0c\u53ef\u4ee5\u53c2\u8003\u8718\u86db\u5148\u751f\u7684\u5e16\u5b50\uff1ahttp:\/\/bbs.dianyuan.com\/topic\/579603<\/p>\n
\n\t <\/p>\n
\n\t <\/p>\n
\n\t\u8fd9\u79cd\u60c5\u51b5\u6709\u4ec0\u4e48\u5371\u5bb3\u5462\uff1f\u5b9e\u9645\u60c5\u51b5\u4e0b\uff0cMOS\u80af\u5b9a\u6709\u9a71\u52a8\u7535\u8def\u7684\u4e48\uff0c\u8981\u4e48\u5bfc\u901a\uff0c\u8981\u4e48\u5173\u6389\u3002\u95ee\u9898\u5c31\u51fa\u5728\u5f00\u673a\uff0c\u6216\u8005\u5173\u673a\u7684\u65f6\u5019\uff0c\u6700\u4e3b\u8981\u662f\u5f00\u673a\u7684\u65f6\u5019\uff0c\u6b64\u65f6\u4f60\u7684\u9a71\u52a8\u7535\u8def\u8fd8\u6ca1\u4e0a\u7535\u3002\u4f46\u662f\u8f93\u5165\u4e0a\u7535\u4e86\uff0c\u7531\u4e8e\u9a71\u52a8\u7535\u8def\u6ca1\u6709\u5de5\u4f5c\uff0cG\u7ea7\u7684\u7535\u8377\u65e0\u6cd5\u88ab\u91ca\u653e\uff0c\u5c31\u5bb9\u6613\u5bfc\u81f4MOS\u5bfc\u901a\u51fb\u7a7f\u3002\u90a3\u4e48\u600e\u4e48\u89e3\u51b3\u5462\uff1f<\/p>\n
\n\t\u5728GS\u4e4b\u95f4\u5e76\u4e00\u4e2a\u7535\u963b.<\/p>\n
\n\t<\/p>\n
\n\t\u90a3\u4e48\u4eff\u771f\u7684\u7ed3\u679c\u5462:<\/p>\n
\n\t<\/p>\n
\n\t\u51e0\u4e4e\u4e3a0V.<\/p>\n
\n\t\u4ec0\u4e48\u53eb\u9a71\u52a8\u80fd\u529b\uff0c\u5f88\u591aPWM\u82af\u7247\uff0c\u6216\u8005\u4e13\u95e8\u7684\u9a71\u52a8\u82af\u7247\u90fd\u4f1a\u8bf4\u9a71\u52a8\u80fd\u529b\uff0c\u6bd4\u5982384X\u7684\u9a71\u52a8\u80fd\u529b\u4e3a1A\uff0c\u5176\u542b\u4e49\u662f\u4ec0\u4e48\u5462\uff1f<\/p>\n
\n\t\u5047\u5982\u9a71\u52a8\u662f\u4e2a\u7406\u60f3\u8109\u51b2\u6e90\uff0c\u90a3\u4e48\u5176\u9a71\u52a8\u80fd\u529b\u5c31\u662f\u65e0\u7a77\u5927\uff0c\u60f3\u63d0\u4f9b\u591a\u5927\u7535\u6d41\u5c31\u7ed9\u591a\u5927\u3002\u4f46\u5b9e\u9645\u4e2d\uff0c\u9a71\u52a8\u662f\u6709\u5185\u963b\u7684\uff0c\u5047\u8bbe\u5176\u5185\u963b\u4e3a10\u6b27\u59c6\uff0c\u572810V\u7535\u538b\u4e0b\uff0c\u6700\u591a\u80fd\u63d0\u4f9b\u7684\u5cf0\u503c\u7535\u6d41\u5c31\u662f1A\uff0c\u901a\u5e38\u4e5f\u8ba4\u4e3a\u5176\u9a71\u52a8\u80fd\u529b\u4e3a1A\u3002<\/p>\n
\n\t <\/p>\n
\n\t\u90a3\u4ec0\u4e48\u53eb\u9a71\u52a8\u7535\u963b\u5462\uff0c\u901a\u5e38\u9a71\u52a8\u5668\u548cMOS\u7684G\u6781\u4e4b\u95f4\uff0c\u4f1a\u4e32\u4e00\u4e2a\u7535\u963b\uff0c\u5c31\u5982\u4e0b\u56fe\u7684R3\u3002<\/p>\n
\n\t<\/p>\n
\n\t\u9a71\u52a8\u7535\u963b\u7684\u4f5c\u7528\uff0c\u5982\u679c\u4f60\u7684\u9a71\u52a8\u8d70\u7ebf\u5f88\u957f\uff0c\u9a71\u52a8\u7535\u963b\u53ef\u4ee5\u5bf9\u8d70\u7ebf\u7535\u611f\u548cMOS\u7ed3\u7535\u5bb9\u5f15\u8d77\u7684\u9707\u8361\u8d77\u963b\u5c3c\u4f5c\u7528\u3002\u4f46\u662f\u901a\u5e38\uff0c\u73b0\u5728\u7684PCB\u8d70\u7ebf\u90fd\u5f88\u7d27\u51d1\uff0c\u8d70\u7ebf\u7535\u611f\u975e\u5e38\u5c0f\u3002<\/p>\n
\n\t\u7b2c\u4e8c\u4e2a\uff0c\u91cd\u8981\u4f5c\u7528\u5c31\u662f\u8c03\u89e3\u9a71\u52a8\u5668\u7684\u9a71\u52a8\u80fd\u529b\uff0c\u8c03\u8282\u5f00\u5173\u901f\u5ea6\u3002\u5f53\u7136\u53ea\u80fd\u964d\u4f4e\u9a71\u52a8\u80fd\u529b\uff0c\u800c\u4e0d\u80fd\u63d0\u9ad8\u3002<\/p>\n
\n\t <\/p>\n
\n\t\u5bf9\u4e0a\u56fe\u8fdb\u884c\u4eff\u771f\uff0cR3\u5206\u522b\u53d61\u6b27\u59c6\uff0c\u548c100\u6b27\u59c6\u3002\u4e0b\u56fe\u662fMOS\u7684G\u6781\u7684\u7535\u538b\u6ce2\u5f62\u4e0a\u5347\u6cbf\u3002<\/p>\n
\n\t <\/p>\n
\n\t\u7ea2\u8272\u6ce2\u5f62\u4e3aR3=1\u6b27\u59c6\uff0c\u7eff\u8272\u4e3aR3=100\u6b27\u59c6\u3002\u53ef\u4ee5\u770b\u5230\uff0c\u5f53R3\u6bd4\u8f83\u5927\u65f6\uff0c\u9a71\u52a8\u5c31\u6709\u70b9\u529b\u4e0d\u4ece\u5fc3\u4e86\uff0c\u7279\u522b\u5728\u5904\u7406\u7c73\u52d2\u6548\u5e94\u7684\u65f6\u5019\uff0c\u9a71\u52a8\u7535\u538b\u4e0a\u5347\u5f88\u7f13\u6162\u3002<\/p>\n
\n\t <\/p>\n
\n\t\u4e0b\u56fe\uff0c\u662f\u9a71\u52a8\u7684\u4e0b\u964d\u6cbf<\/p>\n
\n\t<\/p>\n
\n\t <\/p>\n
\n\t <\/p>\n
\n\t\u90a3\u4e48\u9a71\u52a8\u7684\u5feb\u6162\u5bf9MOS\u7684\u5f00\u5173\u6709\u4ec0\u4e48\u5f71\u54cd\u5462\uff1f\u4e0b\u56fe\u662fMOS\u5bfc\u901a\u65f6\u5019DS\u7684\u7535\u538b\uff1a<\/p>\n
\n\t<\/p>\n
\n\t\u7ea2\u8272\u7684\u662fR3=1\u6b27\u59c6\uff0c\u7eff\u8272\u7684\u662fR3=100\u6b27\u59c6\u3002\u53ef\u89c1R3\u8d8a\u5927\uff0cMOS\u7684\u5bfc\u901a\u901f\u5ea6\u8d8a\u6162\u3002<\/p>\n
\n\t <\/p>\n
\n\t <\/p>\n
\n\t\u4e0b\u56fe\u662f\u7535\u6d41\u6ce2\u5f62<\/p>\n
\n\t<\/p>\n
\n\t\u7ea2\u8272\u7684\u662fR3=1\u6b27\u59c6\uff0c\u7eff\u8272\u7684\u662fR3=100\u6b27\u59c6\u3002\u53ef\u89c1R3\u8d8a\u5927\uff0cMOS\u7684\u5bfc\u901a\u901f\u5ea6\u8d8a\u6162\u3002<\/p>\n
\n\t <\/p>\n
\n\t\u53ef\u4ee5\u770b\u5230\uff0c\u9a71\u52a8\u7535\u963b\u589e\u52a0\u53ef\u4ee5\u964d\u4f4eMOS\u5f00\u5173\u7684\u65f6\u5019\u5f97\u7535\u538b\u7535\u6d41\u7684\u53d8\u5316\u7387\u3002\u6bd4\u8f83\u6162\u7684\u5f00\u5173\u901f\u5ea6\uff0c\u5bf9EMI\u6709\u597d\u5904\u3002\u4e0b\u56fe\u662f\u5bf9\u4e24\u4e2a\u4e0d\u540c\u9a71\u52a8\u60c5\u51b5\u4e0b\uff0cMOS\u7684DS\u7535\u538b\u6ce2\u5f62\u505a\u4ed8\u5229\u53f6\u5206\u6790\u5f97\u5230<\/p>\n
\n\t<\/p>\n
\n\t\u7ea2\u8272\u7684\u662fR3=1\u6b27\u59c6\uff0c\u7eff\u8272\u7684\u662fR3=100\u6b27\u59c6\u3002\u53ef\u89c1\uff0c\u9a71\u52a8\u7535\u963b\u5927\u7684\u65f6\u5019\uff0c\u9ad8\u9891\u8c10\u6ce2\u660e\u663e\u53d8\u5c0f\u3002<\/p>\n
\n\t <\/p>\n
\n\t\u4f46\u662f\u9a71\u52a8\u901f\u5ea6\u6162\uff0c\u53c8\u6709\u4ec0\u4e48\u574f\u5904\u5462\uff1f\u90a3\u5c31\u662f\u5f00\u5173\u635f\u8017\u5927\u4e86\uff0c\u4e0b\u56fe\u662f\u4e0d\u540c\u9a71\u52a8\u7535\u963b\u4e0b\uff0c\u5bfc\u901a\u635f\u8017\u7684\u529f\u7387\u66f2\u7ebf\u3002<\/p>\n
\n\t<\/p>\n
\n\t\u7ea2\u8272\u7684\u662fR3=1\u6b27\u59c6\uff0c\u7eff\u8272\u7684\u662fR3=100\u6b27\u59c6\u3002\u53ef\u89c1\uff0c\u9a71\u52a8\u7535\u963b\u5927\u7684\u65f6\u5019\uff0c\u635f\u8017\u660e\u663e\u5927\u4e86\u3002<\/p>\n
\n\t <\/p>\n
\n\t\u7ed3\u8bba\uff1a\u9a71\u52a8\u7535\u963b\u5230\u5e95\u9009\u591a\u5927\uff1f\u8fd8\u771f\u96be\u8bb2\uff0c\u5c0f\u4e86\uff0cEMI\u4e0d\u597d\uff0c\u5927\u4e86\uff0c\u6548\u7387\u4e0d\u597d\u3002<\/p>\n
\n\t\u6240\u4ee5\u53ea\u80fd\u4e00\u4e2a\u6298\u4e2d\u7684\u9009\u62e9\u4e86\u3002<\/p>\n
\n\t <\/p>\n
\n\t\u90a3\u5982\u679c\uff0c\u5f00\u901a\u548c\u5173\u65ad\u7684\u901f\u5ea6\u8981\u5206\u522b\u8c03\u8282\uff0c\u600e\u4e48\u529e\uff1f\u5c31\u7528\u4ee5\u4e0b\u7535\u8def\u3002<\/p>\n
\n\t<\/p>\n
\n\tMOSFET\u7684\u81ea\u4e3e\u9a71\u52a8.<\/p>\n
\n\t\u5bf9\u4e8eNMOS\u6765\u8bf4\uff0c\u5fc5\u987b\u662fG\u6781\u7684\u7535\u538b\u9ad8\u4e8eS\u6781\u4e00\u5b9a\u7535\u538b\u624d\u80fd\u5bfc\u901a\u3002\u90a3\u4e48\u5bf9\u4e8e\u5bf9S\u6781\u548c\u63a7\u5236IC\u7684\u5730\u7b49\u7535\u4f4d\u7684MOS\u6765\u8bf4\uff0c\u9a71\u52a8\u6839\u672c\u6ca1\u6709\u95ee\u9898\uff0c\u5982\u4e0a\u56fe\u3002<\/p>\n
\n\t\u4f46\u662f\u5bf9\u4e8e\u4e00\u4e9b\u62d3\u6251\uff0c\u6bd4\u5982BUCK\uff08\u5f00\u5173\u7ba1\u653e\u5728\u4e0a\u7aef\uff09\uff0c\u53cc\u7ba1\u6b63\u6fc0\uff0c\u53cc\u7ba1\u53cd\u6fc0\uff0c\u534a\u6865\uff0c\u5168\u6865\u8fd9\u4e9b\u62d3\u6251\u7684\u4e0a\u7ba1\uff0c\u5c31\u6ca1\u529e\u6cd5\u76f4\u63a5\u7528\u82af\u7247\u53bb\u9a71\u52a8\uff0c\u90a3\u4e48\u53ef\u4ee5\u91c7\u7528\u81ea\u4e3e\u9a71\u52a8\u7535\u8def\u3002<\/p>\n
\n\t <\/p>\n
\n\t\u770b\u4e0b\u56fe\u7684BUCK\u7535\u8def\uff1a<\/p>\n
\n\t<\/p>\n
\n\t\u52a0\u5165\u8f93\u516512V\uff0cMOS\u7684\u5bfc\u901a\u9600\u503c\u4e3a3V\uff0c\u90a3\u4e48\u5bf9\u4e8eQ1\u6765\u8bf4\uff0c\u5f53Q1\u5bfc\u901a\u4e4b\u540e\uff0c\u5982\u679c\u8981\u7ef4\u6301\u5bfc\u901a\u72b6\u6001\uff0cQ1\u7684G\u7ea7\u5fc5\u987b\u4fdd\u8bc115V\u4ee5\u4e0a\u7684\u7535\u538b\uff0c\u56e0\u4e3aS\u7ea7\u5df2\u7ecf\u670912V\u4e86\u3002<\/p>\n
\n\t\u90a3\u4e48\u8f93\u5165\u624d12V\uff0c\u600e\u4e48\u5f97\u523015V\u7684\u7535\u538b\u5462\uff1f<\/p>\n
\n\t\u5176\u5b9e\u4e0a\u7ba1Q1\u9a71\u52a8\u7684\u4f9b\u7535\u5728\u4e8e Cboot\u3002<\/p>\n
\n\t <\/p>\n
\n\t\u770b\u4e0b\u56fe\uff0c\u82af\u7247\u7684\u5185\u90e8\u7ed3\u6784\uff1a<\/p>\n
\n\t<\/p>\n
\n\tCboot\u662f\u6302\u5728boot\u548cLX\u4e4b\u95f4\u7684\uff0c\u800cLX\u5374\u662f\u4e0b\u7ba1\u7684D\u7ea7\uff0c\u5f53\u4e0b\u7ba1\u5bfc\u901a\u7684\u65f6\u5019\uff0cLX\u63a5\u5730\uff0c\u82af\u7247\u7684\u5185\u90e8\u57fa\u51c6\u901a\u8fc7Dboot\uff08\u81ea\u4e3e\u4e8c\u6781\u7ba1\uff09\u5bf9Cboot\u5145\u7535\u3002\u5f53\u4e0b\u7ba1\u5173\uff0c\u4e0a\u7ba1\u901a\u7684\u65f6\u5019\uff0cLX\u70b9\u7684\u7535\u538b\u4e0a\u5347\uff0cCboot\u4e0a\u7684\u7535\u538b\u81ea\u7136\u5c31\u88ab\u4e3e\u4e86\u8d77\u6765\u3002\u8fd9\u6837\u9a71\u52a8\u7535\u538b\u624d\u80fd\u9ad8\u8fc7\u8f93\u5165\u7535\u538b\u3002<\/p>\n
\n\t\u5f53\u7136\u82af\u7247\u5185\u90e8\u7684\u903b\u8f91\u4fe1\u53f7\u5728\u63d0\u4f9b\u7ed9\u9a71\u52a8\u7684\u65f6\u5019\uff0c\u8fd8\u9700\u8981Level shift\u7535\u8def\uff0c\u628a\u4fe1\u53f7\u7684\u7535\u5e73\u7535\u538b\u4e5f\u63d0\u4e0a\u53bb\u3002<\/p>\n
\n\t <\/p>\n
\n\tBuck\u7535\u8def\uff0c\u73b0\u5728\u6709\u592a\u591a\u7684\u63a7\u5236\u82af\u7247\u96c6\u6210\u4e86\u81ea\u4e3e\u9a71\u52a8\uff0c\u8ba9\u6574\u4e2a\u8bbe\u8ba1\u53d8\u5f97\u5f88\u7b80\u5355\u3002\u4f46\u662f\u5bf9\u4e8e\uff0c\u53cc\u7ba1\u7684\uff0c\u6865\u5f0f\u7684\u62d3\u6251\uff0c\u591a\u6570\u82af\u7247\u6ca1\u6709\u96c6\u6210\u9a71\u52a8\u3002\u90a3\u6837\u5c31\u53ef\u4ee5\u5916\u52a0\u81ea\u4e3e\u9a71\u52a8\u82af\u7247\uff0c48V\u7cfb\u7edf\u8f93\u5165\u7684\uff0c\u53ef\u4ee5\u91c7\u7528Intersil\u516c\u53f8\u7684ISL21XX\uff0cHIP21XX\u7cfb\u5217\u3002\u5982\u679c\u662fAC\/DC\u4e2d\uff0c\u7535\u538b\u6bd4\u8f83\u9ad8\u7684\uff0c\u53ef\u4ee5\u91c7\u7528IR\u7684IR21XX\u7cfb\u5217\u3002<\/p>\n
\n\t\u4e0b\u56fe\u662fISL21XX\u7684\u5185\u90e8\u6846\u56fe\u3002<\/p>\n
\n\t<\/p>\n
\n\t\u5176\u6838\u5fc3\u7684\u4e1c\u897f\uff0c\u5c31\u662f\u7ea2\u5708\u91cc\u7684boot\u4e8c\u6781\u7ba1\uff0c\u548cLevel shift\u7535\u8def<\/p>\n
\n\t <\/p>\n
\n\tISL21XX\u9a71\u52a8\u6865\u5f0f\u7535\u8def\u793a\u610f\u56fe\uff1a<\/span><\/p>\n \n\t <\/span><\/p>\n \n\t\u9a71\u52a8\u53cc\u7ba1\u7535\u8def\uff1a<\/span><\/p>\n \n\t <\/span><\/p>\n \n\t\u9a71\u52a8\u6709\u6e90\u94b3\u4f4d\u793a\u610f\u56fe\uff1a<\/span><\/p>\n \n\t <\/span><\/p>\n \n\t\u5f53\u7136\u4ee5\u4e0a\u90fd\u662f\u793a\u610f\u56fe\uff0c\u6ca1\u6709\u5b8c\u6574\u7684\u5916\u56f4\u7535\u8def\uff0c\u4f46\u662f\u5916\u56f4\u5176\u5b9e\u5f88\u7b80\u5355\uff0c\u53c2\u8003datasheet\u5373\u53ef\u3002<\/span><\/p>\n \n\t\u9694\u79bb\u9a71\u52a8\u3002\u5f53\u63a7\u5236\u548cMOS\u5904\u4e8e\u7535\u6c14\u9694\u79bb\u72b6\u6001\u4e0b\uff0c\u81ea\u4e3e\u9a71\u52a8\u5c31\u65e0\u6cd5\u80dc\u4efb\u4e86\uff0c\u90a3\u4e48\u5c31\u9700\u8981\u9694\u79bb\u9a71\u52a8\u4e86\u3002\u4e0b\u9762\u6765\u8ba8\u8bba\u9694\u79bb\u9a71\u52a8\u4e2d\u6700\u5e38\u7528\u7684\uff0c\u53d8\u538b\u5668\u9694\u79bb\u9a71\u52a8\u3002<\/span><\/p>\n \n\t <\/p>\n \n\t\u770b\u4e2a\u6700\u7b80\u5355\u7684\u9694\u79bb\u9a71\u52a8\u7535\u8def\uff0c\u88ab\u9a71\u52a8\u7684\u5bf9\u8c61\u662fQ1\u3002<\/p>\n \n\t<\/p>\n \n\t <\/p>\n \n\t\u9a71\u52a8\u6e90\u53c2\u6570\u4e3a12V \uff0c100KHz\uff0c D=0.5\u3002<\/p>\n \n\t\u9a71\u52a8\u53d8\u538b\u5668\u7535\u611f\u91cf\u4e3a200uH\uff0c\u531d\u6bd4\u4e3a1\uff1a1\u3002<\/p>\n \n\t<\/p>\n \n\t\u7ea2\u8272\u6ce2\u5f62\u4e3a\u9a71\u52a8\u6e90V1\u7684\u8f93\u51fa\uff0c\u7eff\u8272\u4e3aQ1\u7684G\u7ea7\u6ce2\u5f62\u3002\u53ef\u4ee5\u770b\u5230\uff0cQ1-G\u7684\u6ce2\u5f62\u4e3a\u5177\u6709\u6b63\u8d1f\u7535\u538b\u7684\u65b9\u6ce2\uff0c\u5e45\u503c6V\u4e86\u3002<\/p>\n \n\t\u4e3a\u4ec0\u4e48\u9a71\u52a8\u7535\u538b\u4f1a\u4e0b\u964d\u5462\uff0c\u662f\u56e0\u4e3aV1\u7684\u7535\u538b\u76f4\u6d41\u5206\u91cf\uff0c\u5b8c\u5168\u88abC1\u963b\u6321\u4e86\u3002\u6240\u4ee5C1\u4e5f\u79f0\u4e3a\u9694\u76f4\u7535\u5bb9\u3002<\/p>\n \n\t\u4e0b\u56fe\u4e3aC1\u4e0a\u7684\u7535\u538b\u3002<\/p>\n \n\t<\/p>\n \n\t\u5176\u5e73\u5747\u7535\u538b\u4e3a6V\uff0c\u4f46\u662f\u5cf0\u5cf0\u503c\uff0c\u5374\u67092V\uff0c\u663e\u7136C1\u4e0d\u591f\u5927\uff0c\u5bfc\u81f4\u9a71\u52a8\u4fe1\u53f7\u6700\u7ec8\u4e0d\u591f\u5e73\u3002\u90a3\u4e48\u628aC1\u53d8\u4e3a470n\u3002Q1-G\u7684\u7535\u538b\u6ce2\u5f62\u5c31\u53d8\u6210\u5982\u4e0b\uff1a<\/p>\n \n\t<\/p>\n \n\t\u9a71\u52a8\u7535\u538b\u53d8\u5f97\u5e73\u7f13\u4e86\u4e9b\u3002\u5982\u679c\u628a\u9a71\u52a8\u53d8\u538b\u5668\u7684\u7535\u611f\u91cf\u589e\u52a0\u5230500uH\u3002\u9a71\u52a8\u4fe1\u53f7\u5c31\u5982\u4e0b\u56fe\uff1a<\/p>\n \n\t<\/p>\n \n\t\u9a71\u52a8\u4fe1\u53f7\u663e\u5f97\u66f4\u4e3a\u5e73\u7f13\u3002<\/p>\n \n\t <\/p>\n \n\t\u4ece\u8fd9\u91cc\u53ef\u4ee5\u770b\u5230\uff0c\u8fd9\u79cd\u9a71\u52a8\uff0c\u6709\u4e2a\u660e\u663e\u7684\u7279\u70b9\uff0c\u5c31\u662f\u9a71\u52a8\u7535\u5e73\uff0c\u6700\u7ec8\u5230\u8fbeMOS\u7684\u65f6\u5019\uff0c\u7535\u538b\u5e45\u5ea6\u51cf\u5c0f\u4e86\uff0c\u5177\u4f53\u51cf\u5c0f\u591a\u5c11\u5462\uff0c\u5e94\u8be5\u662fD*V,D\u4e3a\u5360\u7a7a\u6bd4\uff0c\u90a3\u4e48\u5982\u679cD\u5f88\u5927\u7684\u8bdd\uff0c\u9a71\u52a8\u7535\u538b\u5c31\u4f1a\u53d8\u5f97\u5f88\u5c0f\uff0c\u5982\u4e0b\u56fe\uff0cD=0.9<\/p>\n \n\t<\/p>\n \n\t\u53d1\u73b0\u9a71\u52a8\u5230\u8fbeMOS\u7684\u65f6\u5019\uff0c\u6b63\u538b\u4e0d\u52302V\u4e86\u3002\u663e\u7136\u8fd9\u79cd\u9a71\u52a8\u4e0d\u9002\u5408\u5360\u7a7a\u6bd4\u5927\u7684\u60c5\u51b5\u3002<\/p>\n \n\t <\/p>\n \n\t\u4ece\u4e0a\u9762\u53ef\u4ee5\u770b\u5230\uff0c\u5728\u9a71\u52a8\u5de5\u4f5c\u7684\u65f6\u5019\uff0c\u5176\u5b9eC1\u4e0a\u9762\u59cb\u7ec8\u6709\u4e00\u4e2a\u7535\u538b\u5b58\u5728\uff0c\u7535\u538b\u5e73\u5747\u503c\u4e3a<\/p>\n \n\tV*D\uff0c\u4e5f\u5c31\u662f\u8bf4\u8fd9\u4e2a\u7535\u5bb9\u5b58\u50a8\u7740\u4e00\u5b9a\u7684\u80fd\u91cf\u3002\u90a3\u4e48\u8fd9\u4e2a\u80fd\u91cf\u7684\u5b58\u5728\uff0c\u4f1a\u5e26\u6765\u4ec0\u4e48\u95ee\u9898\u5462\uff1f<\/p>\n \n\t\u4e0b\u9762\u6a21\u62df\u9a71\u52a8\u7a81\u7136\u6389\u7535\u7684\u60c5\u51b5\uff1a<\/p>\n \n\t<\/p>\n \n\t\u53ef\u89c1\uff0c\u5728\u9a71\u52a8\u7a81\u7136\u5173\u6389\u4e4b\u540e\uff0cC1\u4e0a\u7684\u80fd\u91cf\uff0c\u4f1a\u5f15\u8d77\u9a71\u52a8\u53d8\u7684\u7535\u611f\uff0cC1\u4ee5\u53camos\u7684\u7ed3\u7535\u5bb9\u4e4b\u95f4\u7684\u8c10\u632f\u3002\u5982\u679c\u8fd9\u4e2a\u8c10\u632f\u7535\u538b\u8db3\u591f\u9ad8\u7684\u8bdd\uff0c\u5c31\u4f1a\u89e6\u53d1MOS\uff0c\u5bf9\u53ef\u9760\u6027\u5e26\u6765\u5371\u5bb3\u3002<\/p>\n \n\t <\/p>\n \n\t\u90a3\u4e48\u5982\u4f55\u6765\u964d\u4f4e\u8fd9\u4e2a\u9707\u8361\u5462\uff0c\u5728GS\u4e0a\u5e76\u4e2a\u7535\u963b\uff0c\u4e0b\u56fe\u662f\u5e76\u4e861K\u7535\u963b\u4e4b\u540e\u6ce2\u5f62\uff1a<\/p>\n \n\t<\/p>\n \n\t\u4f46\u662f\u8fd9\u4e2a\u7535\u963b\u4f1a\u7ed9\u9a71\u52a8\u5e26\u6765\u989d\u5916\u7684\u635f\u8017\u3002<\/p>\n \n\t <\/p>\n \n\t\t\u5982\u4f55\u4f20\u9012\u5927\u5360\u7a7a\u6bd4\u7684\u9a71\u52a8\uff1a<\/p>\n \n\t\t\u770b\u4e00\u4e2a\u7b80\u5355\u7684\u9a71\u52a8\u7535\u8def\u3002<\/p>\n \n\t\t<\/p>\n \n\t\t <\/p>\n \n\t\t\u5f53D=0.9\u7684\u65f6\u5019<\/p>\n \n\t\t<\/p>\n \n\t\t\u7ea2\u8272\u6ce2\u5f62\u4e3a\u9a71\u52a8\u6e90\u8f93\u51fa\uff0c\u7eff\u8272\u4e3a\u5230\u8fbeMOS\u7684\u6ce2\u5f62\u3002\u57fa\u672c\u4fdd\u6301\u4e86\u9a71\u52a8\u6e90\u7684\u6ce2\u5f62\u3002<\/p>\n \n\t\t <\/p>\n \n\t\t <\/p>\n \n\t\t <\/p>\n \n\t\t\u540c\u6837\uff0c\u8fd9\u4e2a\u7535\u8def\u5728\u9a71\u52a8\u6389\u7535\u7684\u65f6\u5019\uff0c\u6bd4\u5982\u5173\u673a\uff0c\u4e5f\u4f1a\u51fa\u73b0\u9707\u8361\u3002<\/p>\n \n\t\t<\/p>\n \n\t\t\u800c\u4e14\u4f3c\u4e4e\u8fd9\u4e2a\u95ee\u9898\u6bd4\u4e0a\u9762\u7684\u7535\u8def\u8fd8\u4e25\u91cd\u3002<\/p>\n \n\t\t <\/p>\n \n\t\t\u4e0b\u9762\u5c1d\u8bd5\u964d\u4f4e\u8fd9\u4e2a\u9707\u8361\uff0c\u9996\u5148\u628aR5\u6539\u4e3a1K<\/p>\n \n\t\t<\/p>\n \n\t\t\u786e\u5b9e\u6709\u6539\u5584\uff0c\u4f46\u95ee\u9898\u8fd8\u662f\u4e25\u91cd\uff0c\u7ee7\u7eed\u5728C2\u4e0a\u5e76\u4e00\u4e2a1K\u7684\u7535\u963b\u3002<\/p>\n \n\t\t<\/p>\n \n\t\t\u7eff\u8272\u7684\u6ce2\u5f62\uff0c\u786e\u5b9e\u66f4\u6539\u5584\u4e86\u4e00\u4e9b\uff0c\u4f46\u662f\u95ee\u9898\u8fd8\u662f\u5b58\u5728\u3002\u8fd9\u662f\u4e2a\u53ef\u9760\u6027\u7684\u9690\u60a3\u3002<\/p>\n \n\t\t <\/p>\n \n\t\t\u5bf9\u4e8e\u8fd9\u4e2a\u95ee\u9898\u5982\u4f55\u89e3\u51b3\u5462\uff1f\u53ef\u4ee5\u91c7\u7528soft stop\u7684\u65b9\u5f0f\u6765\u5173\u673a\u3002soft stop\u5176\u5b9e\u5c31\u662fsoft start\u7684\u53cd\u8fc7\u7a0b\uff0c\u5c31\u662f\u5728\u5173\u673a\u7684\u65f6\u5019\uff0c\u8ba9\u9a71\u52a8\u5360\u7a7a\u6bd4\u4ece\u5927\u5f80\u5c0f\u53d8\u5316\uff0c\u76f4\u5230\u5173\u673a\u3002\u5f88\u591aIC\u5df2\u7ecf\u96c6\u6210\u4e86\u8be5\u529f\u80fd\u3002<\/p>\n \n\t\t<\/p>\n \n\t\t\u53ef\u770b\u5230\uff0c\u9a71\u52a8\u4fe1\u53f7\u5728\u5173\u673a\u7684\u65f6\u5019\uff0c\u6ca1\u6709\u4e86\u4e0a\u9762\u7684\u90a3\u4e9b\u9707\u8361\u3002<\/p>\n \n\t\t\t\t\t\t\u5bf9\u4e8e\u534a\u6865\uff0c\u5168\u6865\u7684\u9a71\u52a8\uff0c\u7531\u4e8e\u5177\u6709\u4e24\u76f8\u9a71\u52a8\uff0c\u800c\u4e14\u76f8\u4f4d\u5dee\u4e3a180\u5ea6\uff0c\u90a3\u4e48\u5982\u4f55\u7528\u9694\u79bb\u53d8\u538b\u5668\u6765\u9a71\u52a8\u5462\uff1f<\/p>\n \n\t\t\t\t\t\t<\/p>\n \n\t\t\t\t\t\t <\/p>\n \n\t\t\t\t\t\t\u91c7\u7528\u4e00\u62d6\u4e8c\u7684\u65b9\u5f0f\uff0c\u53ef\u4ee5\u6765\u9a71\u52a8\u4e24\u4e2a\u7ba1\u5b50\u3002<\/p>\n \n\t\t\t\t\t\t\u4e0b\u56fe\uff0c\u662f\u4e24\u4e2a\u9a71\u52a8\u6e90\u7684\u6ce2\u5f62\uff1a<\/p>\n \n\t\t\t\t\t\t<\/p>\n \n\t\t\t\t\t\t\u901a\u8fc7\u53d8\u538b\u5668\u4f20\u9012\u4e4b\u540e\uff0c\u5230\u8fbeMOS\u4f1a\u53d8\u6210\u5982\u4e0b\uff1a<\/p>\n \n\t\t\t\t\t\t<\/p>\n \n\t\t\t\t\t\t <\/p>\n \n\t\t\t\t\t\t <\/p>\n<\/p><\/div>\n<\/li>\n \n\t\t\t\t\t\tsometimes<\/p>\n<\/p><\/div>\n \n\t\t\t\t\t\t\u5728\u6709\u6e90\u94b3\u4f4d\uff0c\u4e0d\u5bf9\u79f0\u534a\u6865\uff0c\u4ee5\u53ca\u540c\u6b65\u6574\u6d41\u7b49\u573a\u5408\uff0c\u9700\u8981\u4e00\u5bf9\u4e92\u8865\u7684\u9a71\u52a8\uff0c\u90a3\u4e48\u600e\u4e48\u7528\u4e00\u8def\u9a71\u52a8\u6765\u4ea7\u751f\u4e92\u8865\u9a71\u52a8\uff0c\u5e76\u4e14\u5f62\u6210\u6b7b\u533a\u3002\u53ef\u7528\u4e0b\u56fe\u3002<\/p>\n \n\t\t\t\t\t\t\u6ce2\u5f62\u5982\u4e0b\u56fe\uff1a<\/p>\n \n\t\t\t\t\t\t<\/p>\n \n\t\t\t\t\t\t <\/p>\n<\/p><\/div>\n<\/li>\n \n\t\t\t\t\t\tsometimes<\/p>\n<\/p><\/div>\n \n\t\t\t\t\t\tMOSFET\u7684\u5e76\u8054\u9a71\u52a8\uff0c\u7531\u4e8eMOS\u7ecf\u5e38\u91c7\u7528\u5e76\u8054\u7684\u65b9\u5f0f\u5de5\u4f5c\uff0c\u90a3\u4e48\u9a71\u52a8\u53c8\u8be5\u5982\u4f55\u8bbe\u8ba1\u5462\uff1f<\/span><\/p>\n \n\t\t\t\t\t\t <\/p>\n \n\t\t\t\t\t\t\u662f\u8fd9\u6837<\/p>\n \n\t\t\t\t\t\t\u8fd8\u662f\u8fd9\u6837\uff1f<\/p>\n \n\t\t\t\t\t\t<\/p>\n \n\t\t\t\t\t\t <\/p>\n 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