{"id":94819,"date":"2026-08-15T12:17:31","date_gmt":"2026-08-15T04:17:31","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/94819.html"},"modified":"2026-08-15T12:17:31","modified_gmt":"2026-08-15T04:17:31","slug":"multisim-%e4%bb%bf%e7%9c%9f%ef%bc%9a2n2222a-%e5%85%b1%e5%b0%84%e4%b8%89%e6%9e%81%e7%ae%a1%e6%94%be%e5%a4%a7%e7%94%b5%e8%b7%af%ef%bc%88%e4%bb%bf%e7%9c%9f%e5%9b%be%e6%96%87%e4%bb%b6%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/94819.html","title":{"rendered":"Multisim \u4eff\u771f\uff1a2N2222A \u5171\u5c04\u4e09\u6781\u7ba1\u653e\u5927\u7535\u8def\uff08\u4eff\u771f\u56fe\u6587\u4ef6\uff09"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"685\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/08\/20260815041730-6a7fe85a2ef55.png\" width=\"1482\" \/><\/p>\n<h2>Multisim \u4eff\u771f&#xff1a;2N2222A \u5171\u5c04\u4e09\u6781\u7ba1\u653e\u5927\u7535\u8def\u8c03\u8bd5\u8bb0\u5f55<\/h2>\n<p>\u6458\u8981&#xff1a;\u4f7f\u7528 Multisim \u642d\u5efa\u57fa\u4e8e 2N2222A \u7684\u5206\u538b\u5f0f\u504f\u7f6e\u5171\u5c04\u653e\u5927\u7535\u8def&#xff0c;\u5b8c\u6210\u9759\u6001\u5de5\u4f5c\u70b9\u8bbe\u7f6e\u3001\u4ea4\u6d41\u4fe1\u53f7\u653e\u5927\u4eff\u771f&#xff0c;\u8bb0\u5f55\u4eff\u771f\u73b0\u8c61\u3001\u95ee\u9898\u5206\u6790\u4e0e\u7535\u8def\u539f\u7406\u3002<\/p>\n<h3>\u4e00\u3001\u7535\u8def\u7b80\u4ecb<\/h3>\n<p>\u5206\u538b\u5f0f\u504f\u7f6e\u5171\u5c04\u653e\u5927\u7535\u8def\u662f\u6a21\u7535\u6700\u7ecf\u5178\u7684\u4e09\u6781\u7ba1\u653e\u5927\u7535\u8def&#xff0c;\u5229\u7528 R2\u3001R4 \u6784\u6210\u57fa\u6781\u5206\u538b\u7f51\u7edc&#xff0c;\u7a33\u5b9a\u9759\u6001\u5de5\u4f5c\u70b9&#xff1b;2N2222A \u4f5c\u4e3a NPN \u653e\u5927\u7ba1&#xff1b;R3 \u96c6\u7535\u6781\u8d1f\u8f7d\u7535\u963b&#xff0c;R5 \u53d1\u5c04\u6781\u7535\u963b\u5b9e\u73b0\u76f4\u6d41\u8d1f\u53cd\u9988\u7a33\u5b9a 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\u4eff\u771f\u73b0\u8c61<\/h3>\n<li>\u9759\u6001\u76f4\u6d41\u6d4b\u91cf \u4e07\u7528\u8868 XMM2 \u6d4b\u91cf\u96c6\u7535\u6781\u76f4\u6d41\u7535\u538b\u7ea6 9.98V&#xff0c;\u5df2\u7ecf\u975e\u5e38\u63a5\u8fd1\u7535\u6e90 10V\u3002 \u4e07\u7528\u8868 XMM1 \u6d4b\u91cf\u57fa\u6781\u8f93\u5165\u4ea4\u6d41\u4fe1\u53f7\u5cf0\u5cf0\u503c\u7ea6 443mV\u3002<\/li>\n<p>\u26a0\ufe0f\u5f02\u5e38\u73b0\u8c61&#xff1a;\u96c6\u7535\u6781\u7535\u4f4d\u51e0\u4e4e\u7b49\u4e8e VCC&#xff0c;\u4e09\u6781\u7ba1\u63a5\u8fd1\u622a\u6b62\u533a&#xff0c;\u6ca1\u6709\u6b63\u5e38\u653e\u5927\u3002\u793a\u6ce2\u5668\u89c2\u6d4b\u8f93\u51fa\u6ce2\u5f62\u51e0\u4e4e\u548c\u8f93\u5165\u6ce2\u5f62\u5e45\u503c\u63a5\u8fd1&#xff0c;\u7535\u538b\u653e\u5927\u80fd\u529b\u4e25\u91cd\u4e0d\u8db3\u3002<\/p>\n<li>\u6ce2\u5f62\u89c2\u5bdf \u793a\u6ce2\u5668\u901a\u9053 A \u89c2\u6d4b\u8f93\u5165\u4fe1\u53f7&#xff0c;\u8f93\u51fa\u7aef\u6ce2\u5f62\u867d\u7136\u6ca1\u6709\u5931\u771f&#xff0c;\u4f46\u51e0\u4e4e\u6ca1\u6709\u653e\u5927\u6548\u679c\u3002\u4e09\u6781\u7ba1\u9759\u6001\u5de5\u4f5c\u70b9\u843d\u5728\u622a\u6b62\u533a&#xff0c;\u6ca1\u6709\u8fdb\u5165\u653e\u5927\u533a\u5de5\u4f5c\u3002<\/li>\n<h3>\u4e09\u3001\u6545\u969c\u539f\u56e0\u5206\u6790<\/h3>\n<p>\u5206\u538b\u504f\u7f6e\u7535\u8def&#xff0c;Vb\u2248Vcc * R4\/(R2&#043;R4) \u4ee3\u5165\u53c2\u6570 VCC&#061;10V&#xff0c;R2&#061;430k&#xff0c;R4&#061;20k Vb &#061;10 * 20\/(430&#043;20) \u22480.44V<\/p>\n<p>\u7845\u4e09\u6781\u7ba1\u53d1\u5c04\u7ed3\u5bfc\u901a\u7535\u538b\u7ea6 0.6~0.7V&#xff0c;\u73b0\u5728\u57fa\u6781\u5206\u538b\u53ea\u6709 0.44V&#xff0c;\u53d1\u5c04\u7ed3\u4e0d\u8db3\u4ee5\u5bfc\u901a\u3002Ib \u57fa\u6781\u7535\u6d41\u6781\u5c0f&#xff0c;\u4e09\u6781\u7ba1 Q1 \u63a5\u8fd1\u622a\u6b62\u72b6\u6001\u3002<\/p>\n<ul>\n<li>Ic\u22480&#xff0c;R3 \u51e0\u4e4e\u6ca1\u6709\u538b\u964d&#xff0c;Vc\u2248VCC&#061;9.98V&#xff0c;\u548c\u4e07\u7528\u8868\u8bfb\u6570\u5b8c\u5168\u543b\u5408\u3002<\/li>\n<li>\u4e09\u6781\u7ba1\u6ca1\u6709\u5de5\u4f5c\u5728\u653e\u5927\u533a&#xff0c;\u56e0\u6b64\u4fe1\u53f7\u5f97\u4e0d\u5230\u653e\u5927\u3002<\/li>\n<\/ul>\n<p>\u6838\u5fc3\u95ee\u9898&#xff1a;\u4e0a\u504f\u7f6e\u7535\u963b R2 \u53d6\u503c 430k\u03a9 \u8fc7\u5927&#xff0c;\u5bfc\u81f4\u57fa\u6781\u5206\u538b\u4e0d\u8db3&#xff0c;\u4e09\u6781\u7ba1\u65e0\u6cd5\u5bfc\u901a\u3002<\/p>\n<h3>\u56db\u3001\u7535\u8def\u4fee\u6b63\u65b9\u6848<\/h3>\n<p>\u76ee\u6807&#xff1a;\u8ba9 Vb\u22481.5V~2V&#xff0c;\u4fdd\u8bc1 Vbe\u22480.7V&#xff0c;Ve\u22480.8~1.3V&#xff0c;\u4e09\u6781\u7ba1\u8fdb\u5165\u653e\u5927\u533a\u3002<\/p>\n<p>\u65b9\u6848 1&#xff1a;\u51cf\u5c0f\u4e0a\u504f\u7f6e\u7535\u963b R2&#xff0c;\u6bd4\u5982\u628a R2 \u4ece 430k\u03a9 \u6539\u4e3a47k\u03a9 \u8ba1\u7b97&#xff1a;Vb&#061;10 * 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