谁能给解释下，这个符号是什么意思，三极管吗，上下贯穿三极管的线，是什么意思 三极管符号箭头方向指向是什么意思
\u7535\u8def\u56fe\u4e2d\u8fd9\u4e2a\u7b26\u53f7\u662f\u4ec0\u4e48\u610f\u601d\uff1f\u4e09\u6781\u7ba1\u7bad\u5934\u8fde\u63a5\u7684\u5012\u4e09\u89d2\u578b\u662f\u4ec0\u4e48\u610f\u601d\uff1f\u8868\u793a\u63a5\u5730
\u5728\u7535\u8def\u56fe\u4e2d\uff0c\u5982\u679c\u628a\u7535\u6e90\u8d1f\u6781\u4f5c\u4e3a\u5730\u7ebf\uff0c\u5c31\u662f\u6307\u56de\u5230\u7535\u6e90\u8d1f\u6781(\u7b26\u5408\u6b64\u56fe);
\u5982\u679c\u628a\u7535\u6e90\u6b63\u6781\u4f5c\u4e3a\u5730\u7ebf\uff0c\u5c31\u662f\u6307\u56de\u5230\u7535\u6e90\u6b63\u6781
\u4e09\u6781\u7ba1\u662f\u534a\u5bfc\u4f53\u57fa\u672c\u5143\u5668\u4ef6\u4e4b\u4e00\uff0c\u5177\u6709\u7535\u6d41\u653e\u5927\u4f5c\u7528\uff0c\u662f\u7535\u5b50\u7535\u8def\u7684\u6838\u5fc3\u5143\u4ef6\u3002\u4e09\u6781\u7ba1\u662f\u5728\u4e00\u5757\u534a\u5bfc\u4f53\u57fa\u7247\u4e0a\u5236\u4f5c\u4e24\u4e2a\u76f8\u8ddd\u5f88\u8fd1\u7684PN\u7ed3\uff0c\u4e24\u4e2aPN\u7ed3\u628a\u6574\u5757\u534a\u5bfc\u4f53\u5206\u6210\u4e09\u90e8\u5206\uff0c\u4e2d\u95f4\u90e8\u5206\u662f\u57fa\u533a\uff0c\u4e24\u4fa7\u90e8\u5206\u662f\u53d1\u5c04\u533a\u548c\u96c6\u7535\u533a\uff0c\u6392\u5217\u65b9\u5f0f\u6709PNP\u548cNPN\u4e24\u79cd\u3002
NPN\u548cPNP\u578b\u4e09\u6781\u7ba1
-- \u4e09\u6781\u7ba1\u5de5\u4f5c\u539f\u7406 --
\u6676\u4f53\u4e09\u6781\u7ba1\uff08\u4ee5\u4e0b\u7b80\u79f0\u4e09\u6781\u7ba1\uff09\u6309\u6750\u6599\u5206\u6709\u4e24\u79cd\uff1a\u9517\u7ba1\u548c\u7845\u7ba1\u3002\u800c\u6bcf\u4e00\u79cd\u53c8\u6709NPN\u548cPNP\u4e24\u79cd\u7ed3\u6784\u5f62\u5f0f\uff0c\u4f46\u4f7f\u7528\u6700\u591a\u7684\u662f\u7845NPN\u548c\u9517PNP\u4e24\u79cd\u4e09\u6781\u7ba1\uff0c\uff08\u5176\u4e2d\uff0cN\u662f\u8d1f\u6781\u7684\u610f\u601d\uff08\u4ee3\u8868\u82f1\u6587\u4e2dNegative\uff09\uff0cN\u578b\u534a\u5bfc\u4f53\u5728\u9ad8\u7eaf\u5ea6\u7845\u4e2d\u52a0\u5165\u78f7\u53d6\u4ee3\u4e00\u4e9b\u7845\u539f\u5b50\uff0c\u5728\u7535\u538b\u523a\u6fc0\u4e0b\u4ea7\u751f\u81ea\u7531\u7535\u5b50\u5bfc\u7535\uff0c\u800cP\u662f\u6b63\u6781\u7684\u610f\u601d\uff08Positive\uff09\u662f\u52a0\u5165\u787c\u53d6\u4ee3\u7845\uff0c\u4ea7\u751f\u5927\u91cf\u7a7a\u7a74\u5229\u4e8e\u5bfc\u7535\uff09\u3002
\u4e24\u8005\u9664\u4e86\u7535\u6e90\u6781\u6027\u4e0d\u540c\u5916\uff0c\u5176\u5de5\u4f5c\u539f\u7406\u90fd\u662f\u76f8\u540c\u7684\uff0c\u4e0b\u9762\u4ec5\u4ecb\u7ecdNPN\u7845\u7ba1\u7684\u7535\u6d41\u653e\u5927\u539f\u7406\u3002
\u5bf9\u4e8eNPN\u7ba1\uff0c\u5b83\u662f\u75312\u5757N\u578b\u534a\u5bfc\u4f53\u4e2d\u95f4\u5939\u7740\u4e00\u5757P\u578b\u534a\u5bfc\u4f53\u6240\u7ec4\u6210\uff0c\u53d1\u5c04\u533a\u4e0e\u57fa\u533a\u4e4b\u95f4\u5f62\u6210\u7684PN\u7ed3\u79f0\u4e3a\u53d1\u5c04\u7ed3,\u800c\u96c6\u7535\u533a\u4e0e\u57fa\u533a\u5f62\u6210\u7684PN\u7ed3\u79f0\u4e3a\u96c6\u7535\u7ed3,\u4e09\u6761\u5f15\u7ebf\u5206\u522b\u79f0\u4e3a\u53d1\u5c04\u6781e \uff08Emitter\uff09\u3001\u57fa\u6781b (Base)\u548c\u96c6\u7535\u6781c (Collector)\u3002
\u5f53b\u70b9\u7535\u4f4d\u9ad8\u4e8ee\u70b9\u7535\u4f4d\u96f6\u70b9\u51e0\u4f0f\u65f6\uff0c\u53d1\u5c04\u7ed3\u5904\u4e8e\u6b63\u504f\u72b6\u6001\uff0c\u800cC\u70b9\u7535\u4f4d\u9ad8\u4e8eb\u70b9\u7535\u4f4d\u51e0\u4f0f\u65f6\uff0c\u96c6\u7535\u7ed3\u5904\u4e8e\u53cd\u504f\u72b6\u6001\uff0c\u96c6\u7535\u6781\u7535\u6e90Ec\u8981\u9ad8\u4e8e\u57fa\u6781\u7535\u6e90Eb\u3002
\u5728\u5236\u9020\u4e09\u6781\u7ba1\u65f6\uff0c\u6709\u610f\u8bc6\u5730\u4f7f\u53d1\u5c04\u533a\u7684\u591a\u6570\u8f7d\u6d41\u5b50\u6d53\u5ea6\u5927\u4e8e\u57fa\u533a\u7684\uff0c\u540c\u65f6\u57fa\u533a\u505a\u5f97\u5f88\u8584\uff0c\u800c\u4e14\uff0c\u8981\u4e25\u683c\u63a7\u5236\u6742\u8d28\u542b\u91cf\uff0c\u8fd9\u6837\uff0c\u4e00\u65e6\u63a5\u901a\u7535\u6e90\u540e\uff0c\u7531\u4e8e\u53d1\u5c04\u7ed3\u6b63\u504f\uff0c\u53d1\u5c04\u533a\u7684\u591a\u6570\u8f7d\u6d41\u5b50\uff08\u7535\u5b50\uff09\u53ca\u57fa\u533a\u7684\u591a\u6570\u8f7d\u6d41\u5b50\uff08\u7a7a\u7a74\uff09\u5f88\u5bb9\u6613\u5730\u8d8a\u8fc7\u53d1\u5c04\u7ed3\u4e92\u76f8\u5411\u5bf9\u65b9\u6269\u6563\uff0c\u4f46\u56e0\u524d\u8005\u7684\u6d53\u5ea6\u57fa\u5927\u4e8e\u540e\u8005\uff0c\u6240\u4ee5\u901a\u8fc7\u53d1\u5c04\u7ed3\u7684\u7535\u6d41\u57fa\u672c\u4e0a\u662f\u7535\u5b50\u6d41\uff0c\u8fd9\u80a1\u7535\u5b50\u6d41\u79f0\u4e3a\u53d1\u5c04\u6781\u7535\u6d41\u5b50\u3002
\u7531\u4e8e\u57fa\u533a\u5f88\u8584,\u52a0\u4e0a\u96c6\u7535\u7ed3\u7684\u53cd\u504f\uff0c\u6ce8\u5165\u57fa\u533a\u7684\u7535\u5b50\u5927\u90e8\u5206\u8d8a\u8fc7\u96c6\u7535\u7ed3\u8fdb\u5165\u96c6\u7535\u533a\u800c\u5f62\u6210\u96c6\u7535\u6781\u7535\u6d41Ic\uff0c\u53ea\u5269\u4e0b\u5f88\u5c11\uff081-10%\uff09\u7684\u7535\u5b50\u5728\u57fa\u533a\u7684\u7a7a\u7a74\u8fdb\u884c\u590d\u5408\uff0c\u88ab\u590d\u5408\u6389\u7684\u57fa\u533a\u7a7a\u7a74\u7531\u57fa\u6781\u7535\u6e90Eb\u91cd\u65b0\u8865\u7ed9\uff0c\u4ece\u800c\u5f62\u6210\u4e86\u57fa\u6781\u7535\u6d41Ibo.\u6839\u636e\u7535\u6d41\u8fde\u7eed\u6027\u539f\u7406\u5f97\uff1a
Ie=Ib+Ic
\u8fd9\u5c31\u662f\u8bf4\uff0c\u5728\u57fa\u6781\u8865\u5145\u4e00\u4e2a\u5f88\u5c0f\u7684Ib\uff0c\u5c31\u53ef\u4ee5\u5728\u96c6\u7535\u6781\u4e0a\u5f97\u5230\u4e00\u4e2a\u8f83\u5927\u7684Ic\uff0c\u8fd9\u5c31\u662f\u6240\u8c13\u7535\u6d41\u653e\u5927\u4f5c\u7528\uff0cIc\u4e0eIb\u662f\u7ef4\u6301\u4e00\u5b9a\u7684\u6bd4\u4f8b\u5173\u7cfb\uff0c\u5373\uff1a
\u03b21=Ic/Ib
\u5f0f\u4e2d\uff1a\u03b21--\u79f0\u4e3a\u76f4\u6d41\u653e\u5927\u500d\u6570
\u96c6\u7535\u6781\u7535\u6d41\u7684\u53d8\u5316\u91cf\u25b3Ic\u4e0e\u57fa\u6781\u7535\u6d41\u7684\u53d8\u5316\u91cf\u25b3Ib\u4e4b\u6bd4\u4e3a\uff1a
\u03b2= \u25b3Ic/\u25b3Ib
\u5f0f\u4e2d\u03b2--\u79f0\u4e3a\u4ea4\u6d41\u7535\u6d41\u653e\u5927\u500d\u6570
\u7531\u4e8e\u4f4e\u9891\u65f6\u03b21\u548c\u03b2\u7684\u6570\u503c\u76f8\u5dee\u4e0d\u5927\uff0c\u6240\u4ee5\u6709\u65f6\u4e3a\u4e86\u65b9\u4fbf\u8d77\u89c1\uff0c\u5bf9\u4e24\u8005\u4e0d\u4f5c\u4e25\u683c\u533a\u5206\uff0c\u03b2\u503c\u7ea6\u4e3a\u51e0\u5341\u81f3\u4e00\u767e\u591a\u3002
\u03b11=Ic/Ie
Ic\u4e0eIe\u662f\u76f4\u6d41\u901a\u8def\u4e2d\u7684\u7535\u6d41\u5927\u5c0f
\u5f0f\u4e2d\uff1a\u03b11\u4e5f\u79f0\u4e3a\u76f4\u6d41\u653e\u5927\u500d\u6570
\u4e00\u822c\u5728\u5171\u57fa\u6781\u7ec4\u6001\u653e\u5927\u7535\u8def\u4e2d\u4f7f\u7528\uff0c\u63cf\u8ff0\u4e86\u5c04\u6781\u7535\u6d41\u4e0e\u96c6\u7535\u6781\u7535\u6d41\u7684\u5173\u7cfb\u3002
\u03b1 =\u25b3Ic/\u25b3Ie
\u8868\u8fbe\u5f0f\u4e2d\u7684\u03b1\u4e3a\u4ea4\u6d41\u5171\u57fa\u6781\u7535\u6d41\u653e\u5927\u500d\u6570
\u540c\u7406\u03b1\u4e0e\u03b11\u5728\u5c0f\u4fe1\u53f7\u8f93\u5165\u65f6\u76f8\u5dee\u4e5f\u4e0d\u5927
\u5bf9\u4e8e\u4e24\u4e2a\u63cf\u8ff0\u7535\u6d41\u5173\u7cfb\u7684\u653e\u5927\u500d\u6570\u6709\u4ee5\u4e0b\u5173\u7cfb\uff1a
\u4e09\u6781\u7ba1\u7684\u7535\u6d41\u653e\u5927\u4f5c\u7528\u5b9e\u9645\u4e0a\u662f\u5229\u7528\u57fa\u6781\u7535\u6d41\u7684\u5fae\u5c0f\u53d8\u5316\u53bb\u63a7\u5236\u96c6\u7535\u6781\u7535\u6d41\u7684\u5de8\u5927\u53d8\u5316\u3002
\u4e09\u6781\u7ba1\u662f\u4e00\u79cd\u7535\u6d41\u653e\u5927\u5668\u4ef6\uff0c\u4f46\u5728\u5b9e\u9645\u4f7f\u7528\u4e2d\u5e38\u5e38\u901a\u8fc7\u7535\u963b\u5c06\u4e09\u6781\u7ba1\u7684\u7535\u6d41\u653e\u5927\u4f5c\u7528\u8f6c\u53d8\u4e3a\u7535\u538b\u653e\u5927\u4f5c\u7528\u3002
-- \u653e\u5927\u539f\u7406 --
01 \u53d1\u5c04\u533a\u5411\u57fa\u533a\u53d1\u5c04\u7535\u5b50
\u7535\u6e90Ub\u7ecf\u8fc7\u7535\u963bRb\u52a0\u5728\u53d1\u5c04\u7ed3\u4e0a\uff0c\u53d1\u5c04\u7ed3\u6b63\u504f\uff0c\u53d1\u5c04\u533a\u7684\u591a\u6570\u8f7d\u6d41\u5b50(\u81ea\u7531\u7535\u5b50\uff09\u4e0d\u65ad\u5730\u8d8a\u8fc7\u53d1\u5c04\u7ed3\u8fdb\u5165\u57fa\u533a\uff0c\u5f62\u6210\u53d1\u5c04\u6781\u7535\u6d41Ie\u3002
\u540c\u65f6\u57fa\u533a\u591a\u6570\u8f7d\u6d41\u5b50\u4e5f\u5411\u53d1\u5c04\u533a\u6269\u6563\uff0c\u4f46\u7531\u4e8e\u591a\u6570\u8f7d\u6d41\u5b50\u6d53\u5ea6\u8fdc\u4f4e\u4e8e\u53d1\u5c04\u533a\u8f7d\u6d41\u5b50\u6d53\u5ea6\uff0c\u53ef\u4ee5\u4e0d\u8003\u8651\u8fd9\u4e2a\u7535\u6d41\uff0c\u56e0\u6b64\u53ef\u4ee5\u8ba4\u4e3a\u53d1\u5c04\u7ed3\u4e3b\u8981\u662f\u7535\u5b50\u6d41\u3002
02 \u57fa\u533a\u4e2d\u7535\u5b50\u7684\u6269\u6563\u4e0e\u590d\u5408
\u7535\u5b50\u8fdb\u5165\u57fa\u533a\u540e\uff0c\u5148\u5728\u9760\u8fd1\u53d1\u5c04\u7ed3\u7684\u9644\u8fd1\u5bc6\u96c6\uff0c\u6e10\u6e10\u5f62\u6210\u7535\u5b50\u6d53\u5ea6\u5dee\uff0c\u5728\u6d53\u5ea6\u5dee\u7684\u4f5c\u7528\u4e0b\uff0c\u4fc3\u4f7f\u7535\u5b50\u6d41\u5728\u57fa\u533a\u4e2d\u5411\u96c6\u7535\u7ed3\u6269\u6563\uff0c\u88ab\u96c6\u7535\u7ed3\u7535\u573a\u62c9\u5165\u96c6\u7535\u533a\u5f62\u6210\u96c6\u7535\u6781\u7535\u6d41Ic\u3002
\u4e5f\u6709\u5f88\u5c0f\u4e00\u90e8\u5206\u7535\u5b50\uff08\u56e0\u4e3a\u57fa\u533a\u5f88\u8584\uff09\u4e0e\u57fa\u533a\u7684\u7a7a\u7a74\u590d\u5408\uff0c\u6269\u6563\u7684\u7535\u5b50\u6d41\u4e0e\u590d\u5408\u7535\u5b50\u6d41\u4e4b\u6bd4\u4f8b\u51b3\u5b9a\u4e86\u4e09\u6781\u7ba1\u7684\u653e\u5927\u80fd\u529b\u3002
03 \u96c6\u7535\u533a\u6536\u96c6\u7535\u5b50
\u7531\u4e8e\u96c6\u7535\u7ed3\u5916\u52a0\u53cd\u5411\u7535\u538b\u5f88\u5927\uff0c\u8fd9\u4e2a\u53cd\u5411\u7535\u538b\u4ea7\u751f\u7684\u7535\u573a\u529b\u5c06\u963b\u6b62\u96c6\u7535\u533a\u7535\u5b50\u5411\u57fa\u533a\u6269\u6563\uff0c\u540c\u65f6\u5c06\u6269\u6563\u5230\u96c6\u7535\u7ed3\u9644\u8fd1\u7684\u7535\u5b50\u62c9\u5165\u96c6\u7535\u533a\u4ece\u800c\u5f62\u6210\u96c6\u7535\u6781\u4e3b\u7535\u6d41Icn\u3002
\u53e6\u5916\u96c6\u7535\u533a\u7684\u5c11\u6570\u8f7d\u6d41\u5b50\uff08\u7a7a\u7a74\uff09\u4e5f\u4f1a\u4ea7\u751f\u6f02\u79fb\u8fd0\u52a8\uff0c\u6d41\u5411\u57fa\u533a\u5f62\u6210\u53cd\u5411\u9971\u548c\u7535\u6d41\uff0c\u7528Icbo\u6765\u8868\u793a\uff0c\u5176\u6570\u503c\u5f88\u5c0f\uff0c\u4f46\u5bf9\u6e29\u5ea6\u5374\u5f02\u5e38\u654f\u611f\u3002
绛旓細姹傚拰绗﹀彿锛姣斿姹傛暟鍒梟椤瑰拰鐨勭畝鍐欏氨鏄敤姹傚拰绗﹀彿
绛旓細琛ㄧず蹇冩儏濂斤紝寮蹇冿紝涔熻〃绀哄弸濂斤紱;D 浠ｈ〃鍋氶鑴告垨鑰呮尋鐪肩瑧锛岃〃绀虹帺绗戯紝涔熻〃绀烘煇绉嶉粯濂戯紱XD 浠ｈ〃寮鎬澶х瑧锛岃〃绀洪亣鍒伴潪甯稿彲涔愮殑浜嬫儏锛岀瑧寰楀悎涓嶆嫝鍢达紱:( 浠ｈ〃浼ゅ績锛岃〃绀哄け鏈涳紝娌抚锛屼篃琛ㄧず涓嶅悎蹇冩剰銆傚皢杩鍑犱釜绗﹀彿椤烘椂閽堟棆杞45掳灏变笉闅惧彂鐜帮紝浠栦滑閮芥槸鐢ㄥ緢绠鍗曠殑绗﹀彿锛缁勬垚浜嗕竴涓釜褰㈣薄鐨勮〃鎯咃紝濡備笅鍥撅細
绛旓細骞宠搴︼紝骞抽潰璐
绛旓細鍓嶈呰〃绀哄井鍒, 鍚庤呰〃绀哄亸瀵兼暟. 濡傛灉鏄竴鍏冨嚱鏁, 鎰忎箟涓鏍. 濡傛灉鏄鍏冨嚱鏁, 鍓嶈呰〃绀烘暣浣撶殑娌垮悇涓柟鍚戠殑鍙樺寲, 鍚庤呰〃绀烘部鏌愬潗鏍囧垎閲忔柟鍚戠殑鍙樺寲.
绛旓細浣犲湪楂樹簩鍖栧涓婅兘瀛﹀埌杩欎釜 杩欐槸鑻幆 涓绉嶅畼鑳藉洟
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绛旓細杩欎釜绗﹀彿鍙互浠ｈ〃寰堝鎰忎箟 鏈夋棤璇殑鎰忔 杩樻湁鏅曠殑鎰忔 濡傛灉濂崇敓缁忓父缁欐墦閭ｄ釜绗﹀彿璇存槑濂硅窡浣犺亰澶╁緢鏀剧殑寮 寰堜翰鍒囩殑鎰熻 lz鐪嬫潵寰堝湪涔庤繖涓コ瀛 鍏跺疄鑰佹兂杩欎簺娌＄敤 杩樹笉濡傚疄闄呰鍔 杩藉埌濂瑰ソ濂界埍濂
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