{"id":3000,"date":"2020-03-24T02:03:00","date_gmt":"2020-03-24T02:03:00","guid":{"rendered":""},"modified":"2020-03-24T10:03:23","modified_gmt":"2020-03-24T02:03:23","slug":"%e9%87%87%e7%94%a8%e7%94%b5%e6%b5%81%e6%ba%90%e7%94%b5%e8%b7%af%e6%9b%bf%e4%bb%a3%e7%94%b5%e5%8e%8b%e6%ba%90%e4%be%9b%e7%94%b5%e7%9a%84%e7%bc%ba%e7%82%b9%e6%9c%89%e5%93%aa%e4%ba%9b","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=3000","title":{"rendered":"\u91c7\u7528\u7535\u6d41\u6e90\u7535\u8def\u66ff\u4ee3\u7535\u538b\u6e90\u4f9b\u7535\u7684\u7f3a\u70b9\u6709\u54ea\u4e9b"},"content":{"rendered":"

\n\t\u7ec8\u4e8e\u5f00\u59cb\u52a8\u624b\u5199\u4e1c\u897f\u4e86\uff0c\u6b63\u597d\u5199\u5230\u8fd9\u4e2a\u5f00\u5173<\/u>\u68c0\u6d4b\u7684\u65b9\u9762\u3002<\/p>\n

\n\t12V\u4e0a\u62c9\u7535\u963b<\/u>\u4f20\u611f\u5668<\/u>\u7684\u95ee\u9898 -1<\/p>\n

\n\t <\/div>\n

\n\t12V\u4e0a\u62c9\u7535\u963b\u4f20\u611f\u5668\u7684\u95ee\u9898 -2<\/p>\n

\n\t\u7ec4\u5408\u5f00\u5173\u68c0\u6d4b<\/strong><\/p>\n

\n\t\u4ee5\u4e0a\u5199\u8fc7\u7684\u5173\u4e8e\u7ec4\u5408\u5f00\u5173\u963b\u503c\u7684\u91c7\u96c6\u548c\u70ed\u7535\u963b\u7684\u91c7\u96c6\uff0c\u5728\u798f\u7279\u7684\u53c2\u8003\u4e2d\uff0c\u5b9e\u9645\u4e0a\u662f\u8981\u6c42\u91c7\u7528\u7535\u6d41<\/u>\u6e90\u7535\u8def<\/u>\u66ff\u4ee3\u7535\u538b\u6e90\u4f9b\u7535\u7684\uff0c\u7535\u538b\u4f9b\u7535\u7684\u7f3a\u70b9\u5982\u4e0b\uff1a<\/p>\n

\n\t1.12V\u4f9b\u7535\u7535\u538b\u8de8\u5ea6\u5f88\u59279\uff5e16V\uff0c\u8f6f\u4ef6\u9700\u8981\u91c7\u96c612V\u7535\u538b\u8fdb\u884c\u4fee\u6b63\uff0c\u8ba1\u7b97\u91cf\u8f83\u5927\uff0c\u5f15\u5165\u7684\u8bef\u5dee\u56e0\u7d20\u8f83\u591a\u3002<\/p>\n

\n\t2.5V\u7cfb\u7edf\u4f9b\u7535\u867d\u7136\u7a33\u5b9a\uff0c\u4f46\u662f\u5e26\u6765\u4e86\u5f88\u5927\u7684\u9690\u60a3\uff0c\u5bf9\u5730\u77ed\u8def<\/u>\u5f15\u8d77\u4e86\u7535\u6d41\u8d1f\u8377\uff0c\u5bf9\u7535\u6e90\u77ed\u8def\u5f15\u8d77\u5012\u704c\uff0c\u4fdd\u62a4\u52a0\u5165\u4e8c\u6781\u7ba1<\/u>\u4e4b\u540e\uff0c\u4e8c\u6781\u7ba1\u7684\u5bfc\u901a\u7535\u538b\u6ce2\u52a8\u5f15\u8d77\u4e86\u91c7\u96c6\u7684\u8bef\u5dee\u3002<\/p>\n

\n\t3.\u672c\u8eab\u4e0a\u62c9\u7535\u963b\u5c31\u5b58\u5728\u8bef\u5dee\uff0c12V\u7cfb\u7edf\u7684\u5206\u538b\u7535\u963b\u7684\u8bef\u5dee\u4e5f\u5ba2\u89c2\u5b58\u5728\u3002<\/p>\n

\n\t\u5f53\u7136\u7535\u538b\u4f9b\u7535\u7684\u6210\u672c\u8f83\u4f4e\uff0c\u53ef\u9760\u6027\u76f8\u5bf9\u8f83\u9ad8\uff0c\u8fd9\u662f\u9009\u62e9\u5b83\u4f5c\u4e3a\u8bbe\u8ba1\u7684\u4e00\u4e2a\u8981\u7d20\u3002<\/p>\n

\n\t\u7535\u6d41\u6e90\u7535\u8def\u7684\u597d\u5904\u662f\u53ef\u4f7f\u752812V\u7cfb\u7edf\u800c\u4e0d\u4f1a\u5f15\u5165\u7535\u538b\u6ce2\u52a8\u7684\u95ee\u9898\uff0c\u5173\u4e8e\u6052\u6d41\u6e90\u7684\u7535\u8def\u8bbe\u8ba1\uff0c\u53c2\u8003\u6709\u4e24\u4e2a<\/p>\n

\n\t\u6a21\u7535\u4e66\u4e0a\u7684\u8bbe\u8ba1\uff1a<\/p>\n

\n\thttps:\/\/www1.gradjob.com.cn\/EBSync\/jpkc\/educati<\/u>on\/chap4\/concept4\/42.htm<\/p>\n

\n\tPanic\u7684\u7ec6\u8bf4\u6052\u6d41\u6e90<\/p>\n

\n\thttps:\/\/blog.ednchina.com\/panic\/3473\/message.aspx<\/p>\n

\n\t\u6839\u636ePanic\u7684\u521d\u59cb\u7684\u7535\u6d41\u6e90\u8bbe\u8ba1\uff0c\u5076\u4e5f\u60f3\u4ece\u529f\u8017\u548c\u51c6\u786e\u5ea6\u4e0a\u8fdb\u884c\u7b5b\u9009\u548c\u91cd\u65b0\u8bbe\u8ba1\u3002<\/p>\n

\n\t\u9996\u5148\u6211\u4eec\u8bbe\u8ba1\u7684\u8303\u56f4\u5728\u4e8e\u5916\u90e8\u7535\u963b\u4ece5.2\u5343\u6b27\uff5e51.1\u5343\u6b27\uff0c\u56e0\u6b64\u8f93\u51fa\u7684\u6052\u6d41\u6e90\u5927\u5c0f\u5e94\u572880uA\u5de6\u53f3\u3002<\/p>\n

\n\tR5\uff1a51.1KOhm ===\u300b4.088<\/p>\n

\n\tR6\uff1a42.2KOhm ===\u300b3.376<\/p>\n

\n\tR7\uff1a28.7KOhm ===\u300b2.296<\/p>\n

\n\tR8\uff1a12.4KOhm ===\u300b0.992<\/p>\n

\n\tR9\uff1a5.2KOhm ===\u300b0.416<\/p>\n

\n\t\u9700\u8981\u6ce8\u610f\u7684\u662f\u5730\u7ebf\u4e00\u5b9a\u8981\u901a\u8fc7\u6a21\u5757\u7684\u5730\u63a5\u56de\uff0c\u8fd9\u6837\u53ef\u4fdd\u8bc1\u5730\u504f\u79fb\u7684\u79fb\u9664\u3002<\/p>\n

\n\t\u8fd9\u662f\u7b2c\u4e00\u4e2a\u53ef\u80fd\u7528\u5230\u7684\u7535\u8def\uff0c\u5c31\u50cfPanic\u6240\u8bf4\u7684\u90a3\u6837\uff0c\u6700\u5927\u7684\u95ee\u9898\u5728\u4e8eVbe\u7684\u53d8\u5316\uff0c\u53ef\u80fd\u57280.4\uff5e1.2V\u4e4b\u95f4\u6ce2\u52a8\uff08\u4e3b\u8981\u56e0\u7d20\u662f\u6e29\u5ea6\uff09\u52a0\u4e0a\u7535\u963bR1\u7684\u7cbe\u5ea6\uff0c\u8be5\u7535\u6d41\u6e90\u7684\u95ee\u9898\u76f8\u5f53\u660e\u663e\uff0c\u6211\u4eec\u4e0d\u80fd\u4f7f\u7528\u3002<\/p>\n

\n\t\"\u7535\u963b\"<\/strong><\/p>\n

\n\t\u5de6\u534a\u8fb9\u7535\u8def\u7684\u5206\u6790\uff1a<\/strong><\/p>\n

\n\t\u9664\u5f00\u8fd9\u4e2a\u56e0\u7d20\uff0c\u6211\u4eec\u6765\u5206\u6790\u4e00\u4e0b\u8fd9\u4e2a\u6052\u6d41\u6e90\u672c\u8eab\u5177\u6709\u7684\u8bef\u5dee\uff0c\u4e00\u822c\u7684\u770bIo=Vbe.Q1\/R1<\/p>\n

\n\t\u5047\u8bbe\u4e0a\u7ba1\u4e3aQ2\uff0c\u4e0b\u7ba1\u4e3aQ1<\/p>\n

\n\t\u8f93\u51fa\u7535\u6d41\uff1aIo=Ic_Q2<\/p>\n

\n\t\u800cIe_Q2=Vbe.Q1\/R1+Ib_Q1<\/p>\n

\n\tQ1\u662f\u5728\u4e00\u5b9a\u7684\u7ebf\u6027\u653e\u5927\u533a\u72b6\u6001\u4e0b\u7684\uff0c\u56e0\u4e3a\u5176CE\u7535\u538b\u4e3aVbe.Q1+Vbe.Q2<\/p>\n

\n\tIc_Q1=\uff08Vcc-Vbe.Q1-Vbe.Q2\uff09\/R2-Ib_Q2<\/p>\n

\n\tIc_Q2=Vbe.Q1\/R1+Ib_Q1-Ib_Q2<\/p>\n

\n\t\u7535\u8def\u7684\u8bef\u5dee\u56e0\u7d20\u96c6\u4e2d\u4e8eIb_Q1-Ib_Q2<\/p>\n

\n\t\u7531\u4e8eQ1\u662f\u5728\u7ebf\u6027\u653e\u5927\u72b6\u6001\u7684Ib_Q1=\uff08\uff08Vcc-Vbe.Q1-Vbe.Q2\uff09\/R2-Ib_Q2\uff09\/hfe<\/p>\n

\n\t\u8bef\u5dee\u56e0\u7d20\u53d8\u4e3a\uff08\uff08Vcc-Vbe.Q1-Vbe.Q2\uff09\/R2-Ib_Q2\uff09\/hfe-Ib_Q2<\/p>\n

\n\t\u5982\u679c\u6211\u4eec\u91c7\u7528\u8fd9\u4e2a\u7535\u8def\uff0c\u9700\u8981\u534f\u8c03\u7535\u538b\u548cR2\u7684\u5173\u7cfb\uff0c\u5982\u679c\u91c7\u752812V\u4f9b\u7535\uff0c\u8bef\u5dee\u968f\u7740\u7535\u538b\u53d8\u5316\u3002<\/p>\n

\n\t\u53f3\u534a\u8fb9\u7535\u8def\uff1a<\/strong><\/p>\n

\n\tPanic\u7684\u539f\u56fe\u6709\u9519\u8bef\uff0c\u7535\u6e90\u548c\u5730\u7684\u4f4d\u7f6e\u641e\u53cd\u4e86\uff0c\u5076\u5c06\u4e4b\u6539\u6b63\u4e86\u3002<\/p>\n

\n\t\u503c\u5f97\u4e00\u63d0\u7684\u662f\uff0c\u5982\u679c\u4ee5\u4e0a\u7684\u7535\u8def\u76f4\u63a5\u8fd0\u7528\u5728\u6c7d\u8f66\u7535\u5b50\u4e0a\uff0c\u5373\u4f7f\u7cbe\u5ea6\u4e0a\u53ef\u4ee5\u901a\u8fc7\uff0c\u5728\u77ed\u8def\u6d4b\u8bd5<\/u>\u7684\u65f6\u5019\u4e5f\u4f1a\u51fa\u73b0\u5de8\u5927\u7684\u95ee\u9898\uff0c\u8fd9\u662f\u56e0\u4e3a\u5728\u77ed\u8def\u7684\u65f6\u5019Q2\u7684\u538b\u964d\u4e3a 12V-Vbe\uff0c\u5f88\u5bb9\u6613\u5bfc\u81f4\u4e09\u6781\u7ba1<\/u>\u7684\u635f\u574f\uff0c\u800c\u4e14\u5728\u4fe1\u53f7\u4f20\u5bfc\u5e72\u6270\u8026\u5408<\/u>\u81f3\u4fe1\u53f7\u7ebf<\/u>\u4e0a\u65f6\uff0cQ2\u4e5f\u662f\u5f02\u5e38\u8106\u5f31\u7684\uff0c\u4e0d\u52a0\u4fdd\u62a4\u8fd9\u4e2a\u7535\u8def\u5f88\u96be\u4f7f\u7528\u3002\u540e\u7eed\u8fd8\u4f1a\u5bf9Panic\u4ecb \u7ecd\u7684\u548c\u7f51\u4e0a\u5df2\u6709\u7684\u6052\u6d41\u6e90\u7535\u8def\u8fdb\u884c\u5206\u6790\uff0c\u672c\u7740\u8ba4\u771f\u8d1f\u8d23\u7684\u6001\u5ea6\uff0c\u8fd8\u662f\u9700\u8981\u628a\u4e00\u4e9b\u8003\u8651\u80fd\u591f\u63d0\u51fa\uff0c\u65b9\u4fbf\u5927\u5bb6\u6821\u6838\u3002\u6700\u8fd1\u5728\u7801\u5b57\uff0c\u6bd4\u8f83\u6291\u90c1\uff0c\u5206\u6790\u4e00\u4e9b\u5176\u4ed6\u7535\u8def\u8f6c\u6362\u4e00\u4e0b \u5fc3\u5883\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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