{"id":5584,"date":"2021-10-29T14:31:41","date_gmt":"2021-10-29T06:31:41","guid":{"rendered":"http:\/\/www.szryc.com\/?p=5584"},"modified":"2021-10-29T14:31:41","modified_gmt":"2021-10-29T06:31:41","slug":"mos%e7%ae%a1%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86%e3%80%81%e7%bb%93%e6%9e%84%e7%89%b9%e7%82%b9%e5%92%8c%e5%88%86%e7%b1%bb%e5%ba%94%e7%94%a8","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=5584","title":{"rendered":"MOS\u7ba1\u7684\u5de5\u4f5c\u539f\u7406\u3001\u7ed3\u6784\u7279\u70b9\u548c\u5206\u7c7b\u5e94\u7528"},"content":{"rendered":"

1.\u00a0MOS\u7ba1<\/em>\u5de5\u4f5c\u539f\u7406<\/em>--MOS\u7ba1<\/em>\u7b80\u4ecb<\/h2>\n

MOS\u7ba1\u53c8\u79f0\u573a\u6548\u5e94\u7ba1<\/em>\uff0c\u5373\u5728\u96c6\u6210\u7535\u8def\u4e2d\u7edd\u7f18\u6027\u573a\u6548\u5e94\u7ba1\u3002MOS\u82f1\u6587\u5168\u79f0\u4e3aMetal-Oxide-Semiconductor\u5373\u91d1\u5c5e-\u6c27\u5316\u7269-\u534a\u5bfc\u4f53\uff0c\u786e\u5207\u7684\u8bf4\uff0c\u8fd9\u4e2a\u540d\u5b57\u63cf\u8ff0\u4e86\u96c6\u6210\u7535\u8def\u4e2dMOS\u7ba1\u7684\u7ed3\u6784\uff0c\u5373\uff1a\u5728\u4e00\u5b9a\u7ed3\u6784\u7684\u534a\u5bfc\u4f53\u5668\u4ef6\u4e0a\uff0c\u52a0\u4e0a\u4e8c\u6c27\u5316\u7845\u548c\u91d1\u5c5e\uff0c\u5f62\u6210\u6805\u6781\u3002MOS\u7ba1\u7684source\u548cdrain\u662f\u53ef\u4ee5\u5bf9\u8c03\u7684\uff0c\u90fd\u662f\u5728P\u578bbackgate\u4e2d\u5f62\u6210\u7684N\u578b\u533a\u3002\u5728\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u4e24\u4e2a\u533a\u662f\u4e00\u6837\u7684\uff0c\u5373\u4f7f\u4e24\u7aef\u5bf9\u8c03\u4e5f\u4e0d\u4f1a\u5f71\u54cd\u5668\u4ef6\u7684\u6027\u80fd,\u8fd9\u6837\u7684\u5668\u4ef6\u88ab\u8ba4\u4e3a\u662f\u5bf9\u79f0\u7684\u3002<\/p>\n

\"\"<\/div>\n

2. MOS\u7ba1\u5de5\u4f5c\u539f\u7406<\/em>--Mos\u7ba1\u7684\u7ed3\u6784\u7279\u70b9<\/h2>\n

MOS\u7ba1\u7684\u5185\u90e8\u7ed3\u6784\u5982\u4e0b\u56fe\u6240\u793a;\u5176\u5bfc\u901a\u65f6\u53ea\u6709\u4e00\u79cd\u6781\u6027\u7684\u8f7d\u6d41\u5b50(\u591a\u5b50)\u53c2\u4e0e\u5bfc\u7535\uff0c\u662f\u5355\u6781\u578b\u6676\u4f53\u7ba1\u3002\u5bfc\u7535\u673a\u7406\u4e0e\u5c0f\u529f\u7387MOS\u7ba1\u76f8\u540c\uff0c\u4f46\u7ed3\u6784\u4e0a\u6709\u8f83\u5927\u533a\u522b\uff0c\u5c0f\u529f\u7387MOS\u7ba1\u662f\u6a2a\u5411\u5bfc\u7535\u5668\u4ef6\uff0c\u529f\u7387MOSFET\u5927\u90fd\u91c7\u7528\u5782\u76f4\u5bfc\u7535\u7ed3\u6784\uff0c\u53c8\u79f0\u4e3aVMOSFET\uff0c\u5927\u5927\u63d0\u9ad8\u4e86MOSFET\u5668\u4ef6\u7684\u8010\u538b\u548c\u8010\u7535\u6d41\u80fd\u529b\u3002<\/p>\n

\"wKhk713mAyaAfEUWAAA_CTEWvaw730\"<\/div>\n

\u5176\u4e3b\u8981\u7279\u70b9\u662f\u5728\u91d1\u5c5e\u6805\u6781\u4e0e\u6c9f\u9053\u4e4b\u95f4\u6709\u4e00\u5c42\u4e8c\u6c27\u5316\u7845\u7edd\u7f18\u5c42\uff0c\u56e0\u6b64\u5177\u6709\u5f88\u9ad8\u7684\u8f93\u5165\u7535\u963b\uff0c\u8be5\u7ba1\u5bfc\u901a\u65f6\u5728\u4e24\u4e2a\u9ad8\u6d53\u5ea6n\u6269\u6563\u533a\u95f4\u5f62\u6210n\u578b\u5bfc\u7535\u6c9f\u9053\u3002n\u6c9f\u9053\u589e\u5f3a\u578bMOS\u7ba1\u5fc5\u987b\u5728\u6805\u6781\u4e0a\u65bd\u52a0\u6b63\u5411\u504f\u538b\uff0c\u4e14\u53ea\u6709\u6805\u6e90\u7535\u538b\u5927\u4e8e\u9608\u503c\u7535\u538b\u65f6\u624d\u6709\u5bfc\u7535\u6c9f\u9053\u4ea7\u751f\u7684n\u6c9f\u9053MOS\u7ba1\u3002n\u6c9f\u9053\u8017\u5c3d\u578bMOS\u7ba1\u662f\u6307\u5728\u4e0d\u52a0\u6805\u538b(\u6805\u6e90\u7535\u538b\u4e3a\u96f6)\u65f6\uff0c\u5c31\u6709\u5bfc\u7535\u6c9f\u9053\u4ea7\u751f\u7684n\u6c9f\u9053MOS\u7ba1\u3002<\/p>\n

3. MOS\u7ba1\u5de5\u4f5c\u539f\u7406<\/em>--MOS\u7ba1\u7684\u7279\u6027<\/strong><\/p>\n

3.1MOS\u7ba1\u7684\u8f93\u5165\u3001\u8f93\u51fa\u7279\u6027<\/strong><\/p>\n

\u5bf9\u4e8e\u5171\u6e90\u6781\u63a5\u6cd5\u7684\u7535\u8def\uff0c\u6e90\u6781\u548c\u886c\u5e95\u4e4b\u95f4\u88ab\u4e8c\u6c27\u5316\u7845\u7edd\u7f18\u5c42\u9694\u79bb\uff0c\u6240\u4ee5\u6805\u6781\u7535\u6d41\u4e3a0\u3002<\/p>\n

\"wKhk7V3mAyaAMP8_AAA8RzlXVSA559\"<\/div>\n

\u5f53VGS<\/p>\n

\"wKhk7l3mAyaAJfybAAAi9Sql_ok583\"<\/div>\n

3.2MOS\u7ba1\u7684\u5bfc\u901a\u7279\u6027<\/strong><\/p>\n

MOS\u7ba1\u4f5c\u4e3a\u5f00\u5173\u5143\u4ef6\uff0c\u540c\u6837\u662f\u5de5\u4f5c\u5728\u622a\u6b62\u6216\u5bfc\u901a\u4e24\u79cd\u72b6\u6001\u3002\u7531\u4e8eMOS\u7ba1\u662f\u7535\u538b\u63a7\u5236\u5143\u4ef6\uff0c\u6240\u4ee5\u4e3b\u8981\u7531\u6805\u6e90\u7535\u538buGS\u51b3\u5b9a\u5176\u5de5\u4f5c\u72b6\u6001\u3002\u4e0b\u9762\u4ee5NMOS<\/em>\u7ba1\u4e3a\u4f8b\u4ecb\u7ecd\u5176\u7279\u6027\u3002<\/p>\n

\"wKhk713mAyeADjKLAAA0HR1BvFg430\"<\/div>\n

\u56fe (a)\u4e3a\u7531NMOS<\/em>\u589e\u5f3a\u578b\u7ba1\u6784\u6210\u7684\u5f00\u5173\u7535\u8def\u3002<\/p>\n

NMOS<\/em>\u7684\u7279\u6027\uff0cVgs\u5927\u4e8e\u4e00\u5b9a\u7684\u503c\u5c31\u4f1a\u5bfc\u901a\uff0c\u9002\u5408\u7528\u4e8e\u6e90\u6781\u63a5\u5730\u65f6\u7684\u60c5\u51b5(\u4f4e\u7aef\u9a71\u52a8)\uff0c\u53ea\u8981\u6805\u6781\u7535\u538b\u8fbe\u52304V\u621610V\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n

PMOS\u7684\u7279\u6027\uff0cVgs\u5c0f\u4e8e\u4e00\u5b9a\u7684\u503c\u5c31\u4f1a\u5bfc\u901a\uff0c\u9002\u5408\u7528\u4e8e\u6e90\u6781\u63a5VCC\u65f6\u7684\u60c5\u51b5(\u9ad8\u7aef\u9a71\u52a8)\u3002\u4f46\u662f\uff0c\u867d\u7136PMOS\u53ef\u4ee5\u5f88\u65b9\u4fbf\u5730\u7528\u4f5c\u9ad8\u7aef\u9a71\u52a8\uff0c\u4f46\u7531\u4e8e\u5bfc\u901a\u7535\u963b\u5927\uff0c\u4ef7\u683c\u8d35\uff0c\u66ff\u6362\u79cd\u7c7b\u5c11\u7b49\u539f\u56e0\uff0c\u5728\u9ad8\u7aef\u9a71\u52a8\u4e2d\uff0c\u901a\u5e38\u8fd8\u662f\u4f7f\u7528NMOS\u3002<\/p>\n

4.\u00a0MOS\u7ba1\u5de5\u4f5c\u539f\u7406<\/em><\/strong><\/p>\n

MOS\u7ba1\u7684\u5de5\u4f5c\u539f\u7406(\u4ee5N\u6c9f\u9053\u589e\u5f3a\u578bMOS\u573a\u6548\u5e94\u7ba1)\u5b83\u662f\u5229\u7528VGS\u6765\u63a7\u5236\u201c\u611f\u5e94\u7535\u8377\u201d\u7684\u591a\u5c11\uff0c\u4ee5\u6539\u53d8\u7531\u8fd9\u4e9b\u201c\u611f\u5e94\u7535\u8377\u201d\u5f62\u6210\u7684\u5bfc\u7535\u6c9f\u9053\u7684\u72b6\u51b5\uff0c\u7136\u540e\u8fbe\u5230\u63a7\u5236\u6f0f\u6781\u7535\u6d41\u7684\u76ee\u7684\u3002\u5728\u5236\u9020\u7ba1\u5b50\u65f6\uff0c\u901a\u8fc7\u5de5\u827a\u4f7f\u7edd\u7f18\u5c42\u4e2d\u51fa\u73b0\u5927\u91cf\u6b63\u79bb\u5b50\uff0c\u6545\u5728\u4ea4\u754c\u9762\u7684\u53e6\u4e00\u4fa7\u80fd\u611f\u5e94\u51fa\u8f83\u591a\u7684\u8d1f\u7535\u8377\uff0c\u8fd9\u4e9b\u8d1f\u7535\u8377\u628a\u9ad8\u6e17\u6742\u8d28\u7684N\u533a\u63a5\u901a\uff0c\u5f62\u6210\u4e86\u5bfc\u7535\u6c9f\u9053\uff0c\u5373\u4f7f\u5728VGS=0\u65f6\u4e5f\u6709\u8f83\u5927\u7684\u6f0f\u6781\u7535\u6d41ID\u3002\u5f53\u6805\u6781\u7535\u538b\u6539\u53d8\u65f6\uff0c\u6c9f\u9053\u5185\u88ab\u611f\u5e94\u7684\u7535\u8377\u91cf\u4e5f\u6539\u53d8\uff0c\u5bfc\u7535\u6c9f\u9053\u7684\u5bbd\u7a84\u4e5f\u968f\u4e4b\u800c\u53d8\uff0c\u56e0\u800c\u6f0f\u6781\u7535\u6d41ID\u968f\u7740\u6805\u6781\u7535\u538b\u7684\u53d8\u5316\u800c\u53d8\u5316\u3002<\/p>\n

\"wKhk7V3mAyeABwpdAAAR3DpS_Iw395\"<\/div>\n

MOS\u7ba1\u7684\u5206\u7c7b<\/h2>\n

\u6309\u6c9f\u9053\u6750\u6599\u578b\u548c\u7edd\u7f18\u6805\u578b\u5404\u5206N\u6c9f\u9053\u548cP\u6c9f\u9053\u4e24\u79cd;\u6309\u5bfc\u7535\u65b9\u5f0f\uff1aMOS\u7ba1\u53c8\u5206\u8017\u5c3d\u578b\u4e0e\u589e\u5f3a\u578b\uff0c\u6240\u4ee5MOS\u573a\u6548\u5e94\u6676\u4f53\u7ba1\u5206\u4e3aN\u6c9f\u8017\u5c3d\u578b\u548c\u589e\u5f3a\u578b;P\u6c9f\u8017\u5c3d\u578b\u548c\u589e\u5f3a\u578b\u56db\u5927\u7c7b\uff1aN\u6c9f\u9053\u6d88\u8017\u578b\u3001N\u6c9f\u9053\u589e\u5f3a\u578b\u3001P\u6c9f\u9053\u6d88\u8017\u578b\u3001 P\u6c9f\u9053\u589e\u5f3a\u578b\u3002<\/p>\n

\"wKhk7l3mAyeAUedKAAC3lmsfdOo962\"<\/div>\n

MOS\u7ba1\u5e94\u7528<\/h2>\n

MOS\u7ba1\u6700\u663e\u8457\u7684\u7279\u6027\u662f\u5f00\u5173\u7279\u6027\u597d\uff0c\u6240\u4ee5\u88ab\u5e7f\u6cdb\u5e94\u7528\u5728\u9700\u8981\u7535\u5b50\u5f00\u5173\u7684\u7535\u8def\u4e2d\uff0c\u5e38\u89c1\u7684\u5982\u5f00\u5173\u7535\u6e90\u548c\u9a6c\u8fbe\u9a71\u52a8\uff0c\u4e5f\u6709\u7167\u660e\u8c03\u5149\u3002\u800c\u4e14\u7531MOS\u7ba1\u6784\u6210\u7684CMOS\u4f20\u611f\u5668\u4e3a\u76f8\u673a\u63d0\u4f9b\u4e86\u8d8a\u6765\u8d8a\u9ad8\u7684\u753b\u8d28\uff0c\u6210\u5c31\u4e86\u66f4\u591a\u7684\u201c\u6444\u5f71\u5bb6\u201d\u3002<\/p>\n

1\uff0cMOS\u7ba1\u5e94\u7528\u7535\u8def\uff1a\u4f4e\u538b\u5e94\u7528<\/p>\n

\u5f53\u4f7f\u75285V\u7535\u6e90\uff0c\u8fd9\u65f6\u5019\u5982\u679c\u4f7f\u7528\u4f20\u7edf\u7684\u56fe\u817e\u67f1\u7ed3\u6784\uff0c\u7531\u4e8e\u4e09\u6781\u7ba1\u7684be\u67090.7V\u5de6\u53f3\u7684\u538b\u964d\uff0c\u5bfc\u81f4\u5b9e\u9645\u6700\u7ec8\u52a0\u5728gate\u4e0a\u7684\u7535\u538b\u53ea\u67094.3V\u3002\u8fd9\u65f6\u5019\uff0c\u6211\u4eec\u9009\u7528\u6807\u79f0gate\u7535\u538b4.5V\u7684MOS\u7ba1\u5c31\u5b58\u5728\u4e00\u5b9a\u7684\u98ce\u9669\u3002\u540c\u6837\u7684\u95ee\u9898\u4e5f\u53d1\u751f\u5728\u4f7f\u75283V\u6216\u8005\u5176\u4ed6\u4f4e\u538b\u7535\u6e90\u7684\u573a\u5408\u3002<\/p>\n

2\uff0cMOS\u7ba1\u5e94\u7528\u7535\u8def\uff1a\u5bbd\u7535\u538b\u5e94\u7528<\/p>\n

\u8f93\u5165\u7535\u538b\u5e76\u4e0d\u662f\u4e00\u4e2a\u56fa\u5b9a\u503c\uff0c\u5b83\u4f1a\u968f\u7740\u65f6\u95f4\u6216\u8005\u5176\u4ed6\u56e0\u7d20\u800c\u53d8\u52a8\u3002\u8fd9\u4e2a\u53d8\u52a8\u5bfc\u81f4PWM\u7535\u8def\u63d0\u4f9b\u7ed9MOS\u7ba1\u7684\u9a71\u52a8\u7535\u538b\u662f\u4e0d\u7a33\u5b9a\u7684\u3002\u4e3a\u4e86\u8ba9MOS\u7ba1\u5728\u9ad8gate\u7535\u538b\u4e0b\u5b89\u5168\uff0c\u5f88\u591aMOS\u7ba1\u5185\u7f6e\u4e86\u7a33\u538b\u7ba1\u5f3a\u884c\u9650\u5236gate\u7535\u538b\u7684\u5e45\u503c\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5f53\u63d0\u4f9b\u7684\u9a71\u52a8\u7535\u538b\u8d85\u8fc7\u7a33\u538b\u7ba1\u7684\u7535\u538b\uff0c\u5c31\u4f1a\u5f15\u8d77\u8f83\u5927\u7684\u9759\u6001\u529f\u8017\u3002\u540c\u65f6\uff0c\u5982\u679c\u7b80\u5355\u7684\u7528\u7535\u963b\u5206\u538b\u7684\u539f\u7406\u964d\u4f4egate\u7535\u538b\uff0c\u5c31\u4f1a\u51fa\u73b0\u8f93\u5165\u7535\u538b\u6bd4\u8f83\u9ad8\u7684\u65f6\u5019\uff0cMOS\u7ba1\u5de5\u4f5c\u826f\u597d\uff0c\u800c\u8f93\u5165\u7535\u538b\u964d\u4f4e\u7684\u65f6\u5019gate\u7535\u538b\u4e0d\u8db3\uff0c\u5f15\u8d77\u5bfc\u901a\u4e0d\u591f\u5f7b\u5e95\uff0c\u4ece\u800c\u589e\u52a0\u529f\u8017\u3002<\/p>\n

3\uff0c\u53cc\u7535\u538b\u5e94\u7528<\/p>\n

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