{"id":7260,"date":"2021-11-24T10:44:53","date_gmt":"2021-11-24T02:44:53","guid":{"rendered":"http:\/\/www.szryc.com\/?p=7260"},"modified":"2021-11-24T10:45:22","modified_gmt":"2021-11-24T02:45:22","slug":"%e6%80%8e%e4%b9%88%e9%80%89%e6%8b%a9%e4%b8%89%e6%9e%81%e7%ae%a1%e9%a9%b1%e5%8a%a8%e7%94%b5%e9%98%bb","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=7260","title":{"rendered":"\u5f00\u5173\u7535\u8def\u4e2d\u600e\u4e48\u8ba1\u7b97\u4e09\u6781\u7ba1\u9a71\u52a8\u7535\u963b"},"content":{"rendered":"

\u3000\u4e00\u3001\u4e09\u6781\u7ba1<\/u>\u57fa\u672c\u4ecb\u7ecd<\/p>\n

\u3000\u3000\u4e09\u6781\u7ba1\u662f\u4e00\u79cd\u7535\u6d41<\/u>\u63a7\u5236\u5668\u4ef6\uff0c\u53ef\u4ee5\u4f5c\u4e3a\u65e0\u89e6\u70b9<\/u>\u5f00\u5173<\/u>\uff0c\u7ecf\u5e38\u88ab\u7528\u4e8e\u5f00\u5173\u7535\u8def<\/u>\u5f53\u4e2d\uff0c\u901a\u8fc7\u8f93\u5165\u4fe1\u53f7\u6765\u63a7\u5236\u4e09\u6781\u7ba1\u7684\u5bfc\u901a\u4e0e\u65ad\u5f00\uff0c\u8fdb\u800c\u63a5\u901a\u548c\u5207\u65ad\u7535\u8def\uff0c\u4e09\u6781\u7ba1\u5177\u67093\u4e2a\u7535\u6781\uff1a\u53d1\u5c04\u6781\uff08E\uff09\u3001\u96c6\u7535\u6781\uff08C\uff09\u3001\u57fa\u6781\uff08B\uff09\u3002\u6309PN\u7ed3<\/u>\u7684\u7ec4\u5408\u65b9\u5f0f\uff0c\u4e09\u6781\u7ba1\u5206PNP\u578b\u8ddfNPN\u578b\u3002\u6309\u672c\u5f81\u534a\u5bfc\u4f53\u6750\u6599\u7684\u4e0d\u540c\uff0c\u6709\u7845\u7ba1\u548c\u9517\u7ba1\u4e4b\u5206\u3002<\/p>\n

\u3000\u3000\u4e09\u6781\u7ba1\u6709\u622a\u6b62\u3001\u7ebf\u6027\u653e\u5927\u3001\u9971\u548c3\u79cd\u5de5\u4f5c\u72b6\u6001\uff0c\u4f5c\u4e3a\u5f00\u5173\u4f5c\u7528\uff0c\u4e09\u6781\u7ba1\u5de5\u4f5c\u5728\u622a\u6b62\u548c\u9971\u548c\u72b6\u6001\uff0c\u5bf9\u5e94\u4e8e\u5f00\u5173\u7684\u65ad\u5f00\u8ddf\u95ed\u5408\u3002<\/p>\n

\u3000\u3000\"pIYBAF5-wwmAIBEgAABgmDHq9yc714\"<\/p>\n

\u3000\u30001\uff09\u622a\u6b62\u72b6\u6001\uff1a\u5f53\u4e09\u6781\u7ba1\u57fa\u6781\u504f\u7f6e\u7535\u538b\u5c0f\u4e8ePN\u7ed3\u7684\u5bfc\u901a\u7535\u538b\uff0c\u57fa\u6781\u7535\u6d41\uff29b\uff1d0\u65f6\uff0c\u96c6\u7535\u6781Ic\u548c\u53d1\u5c04\u6781Ie\u6ca1\u7535\u6d41\uff08\u6216\u53ea\u6709\u5fae\u5f31\u7684\u5f31\u7535\u7535\u6d41\uff09\u901a\u8fc7\uff0c\u6b64\u65f6\u4e09\u6781\u7ba1\u5931\u53bb\u4e86\u7535\u6d41\u653e\u5927\u4f5c\u7528\uff0c\u6211\u4eec\u79f0\u4e09\u6781\u7ba1\u5de5\u4f5c\u5728\u622a\u6b62\u72b6\u6001\uff0cCE\u6781\u4e4b\u95f4\u76f8\u5f53\u4e8e\u5f00\u5173\u7684\u65ad\u5f00\u72b6\u6001\u3002<\/p>\n

\u3000\u30002\uff09\u9971\u548c\u72b6\u6001\uff1a\u5f53\u4e09\u6781\u7ba1\u57fa\u6781\u504f\u7f6e\u7535\u538b\u5927\u4e8ePN\u7ed3\u7684\u5bfc\u901a\u7535\u538b\uff0c\u57fa\u6781\u7535\u6d41\u589e\u5927\u5230\u4e00\u5b9a\u6570\u503c\u65f6\uff0c\u96c6\u7535\u6781\u7535\u6d41Ic\u57fa\u672c\u4e0a\u4e0d\u518d\u968f\u7740\u57fa\u6781\u7535\u6d41Ib\u7684\u53d8\u5316\u800c\u53d8\u5316\uff0c\u800c\u662f\u8d8b\u8fd1\u4e8e\u67d0\u4e00\u5b9a\u503c\uff0c\u8fd9\u79cd\u73b0\u8c61\u79f0\u4e3a\u9971\u548c\u72b6\u6001\u3002\u6b64\u65f6\u4e09\u6781\u7ba1\u5931\u53bb\u7535\u6d41\u653e\u5927\u4f5c\u7528\uff0c\u96c6\u7535\u6781\u548c\u53d1\u5c04\u6781\u4e4b\u95f4\u7684\u7535\u538b\u5f88\u5c0f\uff0c\u4e09\u6781\u7ba1\u5904\u4e8e\u5bfc\u901a\u72b6\u6001\uff0c\u76f8\u5f53\u4e8e\u5f00\u5173\u7684\u5bfc\u901a\u72b6\u6001\u3002<\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u4e09\u6781\u7ba1\u5f00\u5173\u7535\u8def\uff0c\u662f\u6839\u636e\u4e09\u6781\u7ba1\u7684\u53c2\u6570\u53ca\u5f00\u5173\u7279\u6027\uff0c\u7528\u4e8e\u7535\u8def\u7ec4\u6210\u5f62\u52bf\u53ca\u9a71\u52a8\u529f\u7387\u7efc\u5408\u8003\u8651\u8bbe\u8ba1\u800c\u6210\uff0c\u3002
\n\u9a71\u52a8\u7535\u963b\u7684\u5927\u5c0f\u9009\u62e9\uff0c\u662f\u6839\u636e\u5f00\u5173\u4e09\u6781\u7ba1\u7684\u653e\u5927\u500d\u6570\u548c\u9a71\u52a8\u529f\u7387\u7684\u5927\u5c0f\u6765\u9009\u62e9\uff01\u65e2\u80fd\u5b89\u5168\u53ef\u9760\u5730\u8ba9\u4e09\u6781\u7ba1\u5de5\u4f5c\u4e8e\u9971\u548c\u72b6\u6001\uff0c\u53c8\u80fd\u8ba9\u4e09\u6781\u7ba1\u6709\u6548\u5730\u5de5\u4f5c\u4e8e\u622a\u6b62\u72b6\u6001\u3002
\n\u4e09\u6781\u7ba1\u4f5c\u4e3a\u5f00\u5173\u5143\u4ef6\uff0c\u5c31\u662f\u8ba9\u4e09\u6781\u7ba1\u5de5\u4f5c\u5728\u9971\u548c\u4e0e\u622a\u6b62\u4e24\u4e2a\u72b6\u6001\uff0c\u622a\u6b62\u72b6\u6001\u597d\u5904\u7406\uff0c\u53ea\u8981\u5207\u65ad\u57fa\u6781\u7535\u6d41\u5c31\u53ef\u4ee5\u4e86\uff0c\u9971\u548c\u72b6\u6001\u8981\u9009\u53d6\u591a\u5927\u7684\u9650\u6d41\u7535\u963b\u5462\uff0c\u9996\u5148\u8981\u786e\u5b9a\u6700\u5927\u96c6\u7535\u6781\u7535\u6d41\uff0c\u5373\u5f00\u5173\u8d1f\u8f7d\u7684\u5de5\u4f5c\u7535\u538b\u4e0e\u8d1f\u8f7d\u7684\u7535\u963b\u6bd4\u503c\uff0c\u6700\u5927\u5de5\u4f5c\u7535\u6d41\u9664\u4ee5\u4e09\u6781\u7ba1\u7684\u653e\u5927\u500d\u6570\uff0c\u5c31\u662f\u57fa\u6781\u5de5\u4f5c\u7535\u6d41\uff0c\u4e3a\u57fa\u6781\u63d0\u4f9b\u7535\u6d41\u7684\u7535\u538b\uff0c\u9664\u4ee5\u57fa\u6781\u7535\u6d41\uff0c\u5c31\u662f\u57fa\u6781\u9650\u6d41\u7535\u963b\u7684\u503c\uff0c\u5982\u679c\u63a7\u5236\u7535\u6d41\u5927\uff0c\u6bd4\u5982\u6709\u51e0\u5b89\uff0c\u5c31\u8981\u7528\u5927\u7535\u6d41\u4e09\u6781\u7ba1\uff0c\u5982\u679c\u63a7\u5236\u7aef\u662fcoms\u82af\u7247\uff0c\u8f93\u51fa\u7535\u6d41\u53ea\u67091\u6beb\u5b89\u4ee5\u5185\uff0c\u8fd9\u65f6\u5c31\u8981\u7528\u5927\u7535\u6d41\u8fbe\u6797\u987f\u7ba1\u6765\u505a\u5e76\u5173\u5143\u4ef6\uff0c\u6216\u8005\u52a0\u4e00\u4e2a\u4e09\u6781\u7ba1\u4e0e\u5f00\u5173\u4e09\u6781\u7ba1\u8054\u7ea7\uff0c\u63d0\u9ad8\u653e\u5927\u7cfb\u6570\uff0c\u4fdd\u8bc1\u4ee5\u5c0f\u7535\u6d41\u63a7\u5236\u5927\u7535\u6d41\u5f00\u5173\u3002<\/p>\n

\u5206\u6790\u7535\u8def\u56fe\uff1a<\/p>\n

\"\"<\/div>\n

a: LED\u6b63\u5e38\u5de5\u4f5c\u65f6\u538b\u964d2V,\u7535\u6d4120mA;\u8fd9\u65f6\u9009\u53d6\u7535\u963b\u4e3aR3= 150\u6b27
\nb: \u627e\u5230\u4e09\u6781\u7ba1\u6570\u636e\u624b\u518c<\/p>\n

\"\"
\n\u5f53Ic=20mA,Vce=5V\u65f6\uff0cIb=160uA;
\n\u628a\u538b\u964d\u8003\u8651\u8fdb\u53bb\u7684\u8bdd\uff0c\u5982\u679c\u57fa\u6781\u7535\u538b\u4e3a5V\uff0c\u90a3\u4e48R1=(5-0.7)\/0.00016 = 26.8K
\n\u8003\u8651\u5230\u57fa\u6781\u7535\u6d41Ib\u4e3a\u4e34\u754c\u503c\uff0c\u6240\u4ee5\u8981\u786e\u4fdd\u4e09\u6781\u7ba1\u5de5\u4f5c\u5728\u9971\u548c\u533a Ib = 1.5Ib = 240uA;
\n\u6b64\u65f6 R1=(5-0.7)\/0.00024 = 18K;
\n\u6240\u4ee5R1<=18K\u65f6\u4e09\u6781\u7ba1\u9971\u548c\u72b6\u6001\u3002\uff08\u6ce8\u610f\uff1a\u7535\u963b\u4e0d\u80fd\u592a\u5c0f\uff0c\u4ee5\u907f\u514d\u6d41\u7ecf\u57fa\u6781\u7535\u6d41\u8fc7\u5927\uff09<\/p>\n

\u6709\u5c0f\u4f19\u4f34\u63d0\u95ee\uff0c\u57fa\u6781\u5e76\u8054\u7535\u963bR2\u963b\u503c\u5982\u4f55\u53bb\u7b97,\u6211\u4e5f\u662f\u7ffb\u9605\u4e86\u4e00\u4e0b\u6a21\u7535\uff0c\u6ca1\u627e\u5230\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u6839\u636e\u81ea\u5df1\u7684\u7406\u89e3\uff0c\u5e94\u8be5\u662f\u4e3a\u4e86\u8fd0\u7528\u4e86\u5206\u538b\u7535\u8def\uff0c\u4f7f\u5f97\u5206\u538b\u7535\u963b\u7684\u503c\u5206\u7684\u7684\u6700\u5c0f\u7535\u538b\u4e3a0.7V\u3002<\/p>\n

\u9996\u5148\u5e94\u77e5\u9053\u57fa\u6781\u5e76\u8054\u7535\u963b\u7684\u4f5c\u7528\u53ca\u539f\u7406\uff1a
\n\u53d1\u5c04\u7ed3\u7535\u538b\u7535\u6d41\u7279\u6027\u5448\u73b0\u5f88\u5f3a\u7684\u975e\u7ebf\u6027\uff0cPN\u7ed3\u4e24\u7aef\u7535\u538b\u57280.3V\u4ee5\u4e0b\u65f6\u51e0\u4e4e\u6ca1\u6709\u7535\u6d41\u6d41\u8fc7PN\u7ed3\u3002\u8be5\u5e76\u8054\u7535\u963b\u5374\u662f\u7ebf\u6027\u7684\uff0c\u7535\u6d41\u4e0e\u4e24\u7aef\u7535\u538b\u6210\u6b63\u6bd4\u3002\u6545\u524d\u7ea7\u8f93\u51fa\u7535\u6d41\u8f83\u5c0f\u65f6\u51e0\u4e4e\u5168\u90e8\u4ece\u7535\u963b\u6d41\u8fc7\uff0c\u7535\u6d41\u5927\u5230\u7535\u963b\u4e24\u7aef\u7535\u538b\u8fbe\u5230\u53d1\u5c04\u7ed3\u5bfc\u901a\u7535\u538b\u65f6\u624d\u4f1a\u6709\u7535\u6d41\u4ece\u53d1\u5c04\u7ed3\u6d41\u8fc7\uff0c\u4e14\u7535\u6d41\u7ee7\u7eed\u589e\u52a0\u65f6\u53d1\u5c04\u7ed3\u4e2d\u7535\u6d41\u589e\u52a0\u5f97\u6bd4\u7535\u963b\u4e2d\u7535\u6d41\u589e\u52a0\u5f97\u66f4\u5feb\u3002\u6240\u4ee5\u5e76\u8054\u7535\u963b\u53ef\u4ee5\u907f\u514d\u5c0f\u7535\u6d41\u6d41\u8fc7\u53d1\u5c04\u7ed3\u9020\u6210\u8bef\u52a8\u4f5c\u3002<\/p>\n

1\u3001\u7535\u963b\u5e76\u8054\u4e8e\u53d1\u5c04\u7ed3\u4e24\u7aef\uff0c\u76ee\u7684\u662f\u907f\u514d\u5fae\u5c0f\u7535\u6d41\u6d41\u5165\u8be5\u7ba1\u57fa\u6781\u65f6\u8be5\u7ba1\u8bef\u5bfc\u901a\u3002<\/p>\n

2\u3001\u56e0\u4e3aCB\u4e4b\u95f4\u90fd\u4f1a\u6709\u7a7f\u900f\u7535\u6d41\uff0c\u8fd9\u4e2a\u7535\u6d41\u7684\u5927\u5c0f\u4e0e\u5de5\u827a\u7b49\u6709\u5173\uff0c\u5b83\u662f\u968f\u6e29\u5ea6\u6025\u5267\u589e\u5927\u7684\uff08\u6307\u6570\u5173\u7cfb\uff09\uff0c\u5f53\u5728\u4f4e\u6e29\u573a\u5408\uff0c\u73b0\u5728\u7684\u4e09\u6781\u7ba1\u5de5\u827a\u57fa\u672c\u628aIcbo\u505a\u5f97\u8db3\u591f\u5c0f\uff0c\u7535\u8def\u4e2d\u53ef\u4ee5\u4e0d\u8003\u8651\u5b83\u3002\u4f46\u662f\uff0c\u5f53\u6e29\u5ea6\u5347\u9ad8\u540e\uff0c\u5b83\u7684\u5f71\u54cd\u5c31\u5927\u4e86\uff0c\u4ee5\u81f3\u4e8e\u7535\u8def\u65e0\u6cd5\u5de5\u4f5c\u7684\u7a0b\u5ea6\u3002\u589e\u52a0\u57fa\u6781\u7684\u5e76\u8054\u7535\u963b\uff0c\u5bf9\u4e8e\u5de5\u4f5c\u6e29\u5ea6\u8303\u56f4\u8f83\u5bbd\u7684\u573a\u5408\u4e0b\u6548\u679c\u975e\u5e38\u660e\u663e\u3002<\/p>\n

\u5982\u4e0a\u9762\u7684\u4f8b\u5b50\uff0c\u5047\u8bbe\u8981\u4f7f\u4e09\u6781\u7ba1\u5bfc\u901a\uff0c\u90a3\u4e48\u57fa\u6781\u7535\u538b\u5e94\u5927\u4e8e0.7V,\u5047\u8bbeSignal = 5V,\u6240\u4ee5\u6839\u636e\u5206\u538b\u539f\u7406\u6709
\n[R2\/(R1+R2)]*5=0.7,\u90a3\u4e48\u5f53R1 = 10K\u65f6\uff0cR2\u4e3a1.6K,R2\u6700\u5c0f\u4e3a1.6K\u3002\u4e3a\u4e86\u4f7f\u5f00\u5173\u66f4\u7a33\u5b9a\u6211\u4eec\u5c3d\u53ef\u80fd\u7684\u4f7fR2\u7684\u963b\u503c\u5927\u3002
\n\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014
\n\u7248\u6743\u58f0\u660e\uff1a\u672c\u6587\u4e3aCSDN\u535a\u4e3b\u300cTOUGH_JIN\u300d\u7684\u539f\u521b\u6587\u7ae0\uff0c\u9075\u5faaCC 4.0 BY-SA\u7248\u6743\u534f\u8bae\uff0c\u8f6c\u8f7d\u8bf7\u9644\u4e0a\u539f\u6587\u51fa\u5904\u94fe\u63a5\u53ca\u672c\u58f0\u660e\u3002
\n\u539f\u6587\u94fe\u63a5\uff1ahttps:\/\/blog.csdn.net\/TOUGH_JIN\/article\/details\/90693380<\/p>\n","protected":false},"excerpt":{"rendered":"

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