{"id":769,"date":"2023-06-22T13:22:50","date_gmt":"2023-06-22T05:22:50","guid":{"rendered":"https:\/\/www.ingvs.com\/?p=769"},"modified":"2023-06-22T13:30:33","modified_gmt":"2023-06-22T05:30:33","slug":"colpitts%e8%80%83%e6%af%95%e5%85%b9%e6%8c%af%e8%8d%a1%e5%99%a8","status":"publish","type":"post","link":"https:\/\/www.ingvs.com\/index.php\/2023\/06\/22\/colpitts%e8%80%83%e6%af%95%e5%85%b9%e6%8c%af%e8%8d%a1%e5%99%a8\/","title":{"rendered":"Colpitts\u8003\u6bd5\u5179\u632f\u8361\u5668"},"content":{"rendered":"\n

\u5e38\u89c1\u7684\u6676\u4f53\u632f\u8361\u7535\u8def\u6709 Colpitts\u8003\u6bd5\u5179\u632f\u8361\u5668\uff08\u7535\u5bb9\u4e09\u70b9\u5f0f\u632f\u8361\u5668\uff09\u3001Pierce\u76ae\u5c14\u65af\u632f\u8361\u5668\u3001Hartley\u54c8\u7279\u83b1\u632f\u8361\u5668\uff08\u7535\u611f\u4e09\u70b9\u5f0f\u632f\u8361\u5668\uff09\u3001CMOS\u6676\u4f53\u632f\u8361\u5668\u7b49\u3002
Colpitts\u632f\u8361\u5668\uff08\u82f1\u8bed\uff1aColpitts oscillator\uff09\uff0c\u53c8\u79f0\u8003\u6bd5\u5179\u632f\u8361\u5668\uff08\u7535\u5bb9\u4e09\u70b9\u5f0f\u632f\u8361\u5668\uff09\uff0c\u7535\u5bb9\u53cd\u9988\u5f0f\u632f\u8361\u5668\uff0c\u662f\u7531\u7f8e\u56fd\u7535\u673a\u5de5\u7a0b\u5e08\u827e\u5fb7\u6e29\u2022\u8003\u6bd5\u5179\u4e8e1918\u5e74\u53d1\u660e\u7684\u4e00\u79cdLC\u632f\u8361\u5668\uff08\u5229\u7528\u7535\u5bb9\u548c\u7535\u611f\u7ed3\u5408\u51b3\u5b9a\u632f\u8361\u9891\u7387\u7684\u7535\u5b50\u632f\u8361\u5668\uff09\u8bbe\u8ba1\u3002Colpitts\u632f\u8361\u5668\u7684\u7279\u70b9\u662f\u6709\u6e90\u5668\u4ef6\u7684\u53cd\u9988\u6765\u81ea\u4e00\u4e2a\u4e0e\u7535\u611f\u4e32\u8054\u7684\uff0c\u7531\u4e24\u4e2a\u7535\u5bb9\u6784\u6210\u7684\u5206\u538b\u5668\uff0cColpitts\u8003\u6bd5\u5179\u632f\u8361\u5668\uff0c\u5176\u4e2d\u5305\u62ecColpitts \u8003\u6bd5\u5179\u632f\u8361\u5668\u7535\u8def\u8bbe\u8ba1\u3001Colpitts \u8003\u6bd5\u5179\u632f\u8361\u5668\u7535\u8def\u56fe\u5206\u6790\u3001Colpitts \u8003\u6bd5\u5179\u632f\u8361\u5668\u7684\u7535\u8def\u539f\u7406\uff0cColpitts \u8003\u6bd5\u5179\u632f\u8361\u5668\u53c2\u6570\u8ba1\u7b97\u7b49\u3002
\u4e00\u3001\u4ec0\u4e48\u662fColpitts \u8003\u6bd5\u5179\u632f\u8361\u5668\uff1f<\/strong>
Colpitts \u632f\u8361\u5668\u7531\u4e00\u4e2a\u5e76\u8054\u7684LC\u8c10\u632f\u69fd\u8def\u7ec4\u6210\uff0c\u5176\u53cd\u9988\u662f\u901a\u8fc7\u7535\u5bb9\u5206\u538b\u5668\u5b9e\u73b0\u7684\u3002\u50cf\u5927\u591a\u6570\u632f\u8361\u5668\u7535\u8def\u4e00\u6837\uff0cColpitts \u632f\u8361\u5668\u4ee5\u591a\u79cd\u5f62\u5f0f\u5b58\u5728\uff0c\u6700\u5e38\u89c1\u7684\u5f62\u5f0f\u7c7b\u4f3c\u4e8e\u4e0b\u9762\u5c06\u8bf4\u7684\u6676\u4f53\u7ba1\u7535\u8def\u3002
\u50a8\u80fd\u5b50\u7535\u8def\u7684\u4e2d\u5fc3\u62bd\u5934\u5728\u201c\u7535\u5bb9\u5206\u538b\u5668\u201d\u7f51\u7edc\u7684\u7ed3\u70b9\u5904\u8fdb\u884c\uff0c\u4ee5\u5c06\u4e00\u90e8\u5206\u8f93\u51fa\u4fe1\u53f7\u53cd\u9988\u56de\u6676\u4f53\u7ba1\u7684\u53d1\u5c04\u6781\u3002\u4e32\u8054\u7684\u4e24\u4e2a\u7535\u5bb9\u5668\u4ea7\u751f180 \u00b0\u7684\u76f8\u79fb\uff0c\u8be5\u76f8\u79fb\u88ab\u53e6\u4e00\u4e2a180 \u00b0\u53cd\u76f8\uff0c\u4ee5\u4ea7\u751f\u6240\u9700\u7684\u6b63\u53cd\u9988\u3002
\u632f\u8361\u9891\u7387\u662f\u66f4\u7eaf\u51c0\u7684\u6b63\u5f26\u6ce2\u7535\u538b\uff0c\u7531\u8c10\u632f\u7535\u8def\u7684\u8c10\u632f\u9891\u7387\u51b3\u5b9a\u3002
Colpitts \u632f\u8361\u5668\u662f\u6700\u5e38\u89c1\u548c\u6700\u5e38\u7528\u7684\u632f\u8361\u7535\u8def\u4e4b\u4e00\uff0cColpitts \u632f\u8361\u5668\u4f7f\u7528\u7535\u5bb9\u5206\u538b\u5668\u7f51\u7edc\u4f5c\u4e3a\u5176\u53cd\u9988\u6e90\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u4e24\u4e2a\u7535\u5bb9\u5668C1\u548cC2\u653e\u7f6e\u5728\u5355\u4e2a\u516c\u5171\u7535\u611f\u5668L\u4e0a\uff0c\u7136\u540eC1\u3001C2\u548cL\u5f62\u6210\u8c03\u8c10\u8c10\u632f\u7535\u8def\u3002
\u632f\u8361\u6761\u4ef6\u4e3a\uff1aX C1 + X C2 = X L\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u7535\u5bb9\u5206\u538b\u5668
\u8fd9\u79cd\u7535\u5bb9\u7535\u8def\u914d\u7f6e\u7684\u4f18\u70b9\u662f\u5728\u8c10\u632f\u7535\u8def\u5185\u5177\u6709\u8f83\u5c11\u7684\u81ea\u611f\u548c\u4e92\u611f\uff0c\u632f\u8361\u5668\u7684\u9891\u7387\u7a33\u5b9a\u6027\u5f97\u5230\u6539\u5584\uff0c\u540c\u65f6\u8bbe\u8ba1\u66f4\u7b80\u5355\u3002
Colpitts \u632f\u8361\u5668\u4f7f\u7528\u5355\u7ea7\u53cc\u6781\u6676\u4f53\u7ba1\u653e\u5927\u5668\u4f5c\u4e3a\u4ea7\u751f\u6b63\u5f26\u8f93\u51fa\u7684\u589e\u76ca\u5143\u4ef6\u3002
\u4e8c\u3001\u57fa\u672c Colpitts \u632f\u8361\u5668\u7535\u8def\u56fe\u5206\u6790<\/strong>
\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u6676\u4f53\u7ba1\u7684\u53d1\u5c04\u6781\u7aef\u5b50\u6709\u6548\u5730\u8fde\u63a5\u5230\u4e24\u4e2a\u7535\u5bb9\u5668C1\u548cC2\u7684\u7ed3\u70b9\uff0c\u8fd9\u4e24\u4e2a\u7535\u5bb9\u5668\u4e32\u8054\u5e76\u5145\u5f53\u7b80\u5355\u7684\u5206\u538b\u5668\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u57fa\u672cColpitts \u632f\u8361\u5668\u7535\u8def\u56fe
\u4e09\u3001Colpitts \u632f\u8361\u5668\u7684\u7535\u8def\u539f\u7406<\/strong>
\u9996\u6b21\u63a5\u901a\u7535\u6e90\u65f6\uff0c\u7535\u5bb9C1\u548cC2\u5145\u7535\uff0c\u7136\u540e\u901a\u8fc7\u7ebf\u5708L\u653e\u7535\uff0c\u7535\u5bb9\u4e0a\u7684\u632f\u8361\u88ab\u65bd\u52a0\u5230\u57fa\u6781 – \u53d1\u5c04\u6781\u7ed3\u5e76\u4e14\u51fa\u73b0\u5728\u96c6\u7535\u6781\u8f93\u51fa\u7684\u653e\u5927\u4e2d\u3002
\u7535\u963bR1\u548cR2\u4ee5\u6b63\u5e38\u65b9\u5f0f\u4e3a\u6676\u4f53\u7ba1\u63d0\u4f9b\u901a\u5e38\u7684\u7a33\u5b9a\u76f4\u6d41\u504f\u7f6e\uff0c\u800c\u9644\u52a0\u7535\u5bb9\u5219\u5145\u5f53\u9694\u76f4\u65c1\u8def\u7535\u5bb9\u3002
\u96c6\u7535\u6781\u7535\u8def\u4e2d\u4f7f\u7528\u5c04\u9891\u627c\u6d41\u5708 (RFC)\uff0c\u4ee5\u5728\u632f\u8361\u9891\u7387 ( \u0192r ) \u5904\u63d0\u4f9b\u9ad8\u7535\u6297\uff08\u7406\u60f3\u60c5\u51b5\u4e0b\u4e3a\u5f00\u8def\uff09\uff0c\u5e76\u5728\u76f4\u6d41\u5904\u63d0\u4f9b\u4f4e\u7535\u963b\u4ee5\u5e2e\u52a9\u542f\u52a8\u632f\u8361\u3002
\u53cd\u9988\u91cf\u7531C1\u548cC2\u7684\u6bd4\u7387\u51b3\u5b9a\u3002\u8fd9\u4e24\u4e2a\u7535\u5bb9\u901a\u5e38\u201c\u7ec4\u5408\u201d\u5728\u4e00\u8d77\u4ee5\u63d0\u4f9b\u6052\u5b9a\u91cf\u7684\u53cd\u9988\uff0c\u56e0\u6b64\u5f53\u4e00\u4e2a\u88ab\u8c03\u6574\u65f6\uff0c\u53e6\u4e00\u4e2a\u4f1a\u81ea\u52a8\u8ddf\u968f\u3002
1\u3001Colpitts \u632f\u8361\u5668\u7535\u8def\u53c2\u6570\u8ba1\u7b97
Colpitts \u632f\u8361\u5668\u7684\u632f\u8361\u9891\u7387\u7531LC\u8c10\u632f\u7535\u8def\u7684\u8c10\u632f\u9891\u7387\u51b3\u5b9a\uff0c\u7ed9\u51fa\u5982\u4e0b\uff1a<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Colpitts \u632f\u8361\u5668\u7535\u8def\u53c2\u6570\u8ba1\u7b97\u516c\u5f0f
\u5176\u4e2dC T\u662f\u4e32\u8054\u8fde\u63a5\u7684C1\u548cC2\u7684\u7535\u5bb9\uff0c\u7ed9\u51fa\u5982\u4e0b\uff1a<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Colpitts \u632f\u8361\u5668\u7535\u8def\u53c2\u6570\u8ba1\u7b97\u516c\u5f0f
\u6676\u4f53\u7ba1\u653e\u5927\u5668\u7684\u914d\u7f6e\u662f\u4e00\u4e2a\u516c\u5171\u53d1\u5c04\u6781\u653e\u5927\u5668\uff0c\u5176\u8f93\u51fa\u4fe1\u53f7\u4e0e\u8f93\u5165\u4fe1\u53f7\u5f02\u76f8180 \u00b0 \u3002\u632f\u8361\u6240\u9700\u7684\u989d\u5916180 \u00b0\u76f8\u79fb\u662f\u901a\u8fc7\u4e24\u4e2a\u7535\u5bb9\u5668\u4e32\u8054\u8fde\u63a5\u5728\u4e00\u8d77\u7136\u540e\u4e0e\u611f\u5e94\u7ebf\u5708\u5e76\u8054\u6765\u5b9e\u73b0\u7684\uff0c\u4ece\u800c\u8fbe\u5230\u7535\u8def\u7684\u6574\u4f53\u76f8\u79fb\u4e3a\u96f6\u6216 360 \u00b0\u3002
\u53cd\u9988\u91cf\u53d6\u51b3\u4e8eC1\u548cC2\u7684\u503c\u3002\u6211\u4eec\u53ef\u4ee5\u770b\u5230C1\u4e24\u7aef\u7684\u7535\u538b\u4e0e\u632f\u8361\u5668\u8f93\u51fa\u7535\u538bVout\u76f8\u540c\uff0c C2\u4e24\u7aef\u7684\u7535\u538b\u662f\u632f\u8361\u5668\u53cd\u9988\u7535\u538b\u3002\u90a3\u4e48C1\u4e24\u7aef\u7684\u7535\u538b\u5c06\u8fdc\u5927\u4e8eC2\u4e24\u7aef\u7684\u7535\u538b\u3002
\u56e0\u6b64\uff0c\u901a\u8fc7\u6539\u53d8\u7535\u5bb9\u5668C1\u548cC2\u7684\u503c\uff0c\u6211\u4eec\u53ef\u4ee5\u8c03\u6574\u8fd4\u56de\u5230\u50a8\u80fd\u7535\u8def\u7684\u53cd\u9988\u7535\u538b\u91cf\u3002\u7136\u800c\uff0c\u5927\u91cf\u7684\u53cd\u9988\u53ef\u80fd\u4f1a\u5bfc\u81f4\u8f93\u51fa\u6b63\u5f26\u6ce2\u5931\u771f\uff0c\u800c\u5c11\u91cf\u7684\u53cd\u9988\u53ef\u80fd\u4e0d\u5141\u8bb8\u7535\u8def\u632f\u8361\u3002
\u7136\u540e\uff0c\u7531 Colpitts \u632f\u8361\u5668\u4ea7\u751f\u7684\u53cd\u9988\u91cf\u57fa\u4e8eC1\u548cC2\u7684\u7535\u5bb9\u6bd4\uff0c\u5e76\u4e14\u662f\u63a7\u5236\u632f\u8361\u5668\u6fc0\u52b1\u7684\u56e0\u7d20\u3002\u8fd9\u4e2a\u6bd4\u7387\u88ab\u79f0\u4e3a\u201c\u53cd\u9988\u91cf\u201d\uff0c\u7b80\u5355\u5730\u7ed9\u51fa\u5982\u4e0b\u516c\u5f0f\uff1a<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Colpitts \u632f\u8361\u5668\u7535\u8def\u53c2\u6570\u8ba1\u7b97\u516c\u5f0f
2\u3001Colpitts \u632f\u8361\u5668\u7535\u8def\u53c2\u6570\u8ba1\u7b97\u793a\u4f8b
\u5177\u6709\u4e24\u4e2a\u5206\u522b\u4e3a 24nF \u548c 240nF \u7684\u7535\u5bb9\u7684Colpitts \u632f\u8361\u5668\u7535\u8def\u4e0e\u4e00\u4e2a 10mH \u7684\u7535\u611f\u5e76\u8054\uff0c\u786e\u5b9a\u7535\u8def\u7684\u632f\u8361\u9891\u7387\u3001\u53cd\u9988\u91cf\u5e76\u753b\u51fa\u7535\u8def\u3002
Colpitts \u632f\u8361\u5668\u7684\u632f\u8361\u9891\u7387\u4e3a\uff1a<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Colpitts \u632f\u8361\u5668\u7535\u8def\u53c2\u6570\u8ba1\u7b97\u516c\u5f0f
\u7531\u4e8e colpitts \u7535\u8def\u7531\u4e24\u4e2a\u4e32\u8054\u7684\u7535\u5bb9\u7ec4\u6210\uff0c\u56e0\u6b64\u603b\u7535\u5bb9\u4e3a\uff1a<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Colpitts \u632f\u8361\u5668\u7535\u8def\u53c2\u6570\u8ba1\u7b97\u516c\u5f0f
\u7ed9\u5b9a\u7535\u611f\u7684\u7535\u611f\u4e3a 10mH\uff0c\u5219\u632f\u8361\u9891\u7387\u4e3a\uff1a<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Colpitts \u632f\u8361\u5668\u7535\u8def\u53c2\u6570\u8ba1\u7b97\u516c\u5f0f
\u56e0\u6b64\uff0cColpitts \u632f\u8361\u5668\u7684\u632f\u8361\u9891\u7387\u4e3a10.8kHz\uff0c\u53cd\u9988\u91cf\u4e3a\uff1a<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Colpitts \u632f\u8361\u5668\u7535\u8def\u56fe
\u56db\u3001\u4f7f\u7528\u8fd0\u7b97\u653e\u5927\u5668\u7684 Colpitts \u632f\u8361\u5668<\/strong>
Colpitts \u632f\u8361\u5668\u9664\u4e86\u4f7f\u7528\u53cc\u6781\u7ed3\u578b\u6676\u4f53\u7ba1\uff08BJT\uff09\u4f5c\u4e3a\u632f\u8361\u5668\u7684\u6709\u6e90\u7ea7\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u4f7f\u7528\u8fd0\u7b97\u653e\u5927\u5668\uff08op-amp\uff09\u3002
\u8fd0\u7b97\u653e\u5927\u5668 Colpitts \u632f\u8361\u5668\u7684\u64cd\u4f5c\u4e0e\u6676\u4f53\u7ba1\u7248\u672c\u7684\u64cd\u4f5c\u5b8c\u5168\u76f8\u540c\uff0c\u5176\u64cd\u4f5c\u9891\u7387\u4ee5\u76f8\u540c\u7684\u65b9\u5f0f\u8ba1\u7b97\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Colpitts \u632f\u8361\u5668\u8fd0\u7b97\u653e\u5927\u5668\u7535\u8def
\u8981\u6ce8\u610f\uff0c\u4f5c\u4e3a\u53cd\u76f8\u653e\u5927\u5668\u914d\u7f6e\uff0cR2\/R1\u7684\u6bd4\u7387\u8bbe\u7f6e\u653e\u5927\u5668\u589e\u76ca\uff0c\u542f\u52a8\u632f\u8361\u9700\u8981 2.9 \u7684\u6700\u5c0f\u589e\u76ca\uff0c\u7535\u963b R3\u4e3a LC \u8c10\u632f\u7535\u8def\u63d0\u4f9b\u6240\u9700\u7684\u53cd\u9988\u3002
Colpitts \u632f\u8361\u5668\u53ef\u4ee5\u4ea7\u751f\u76f8\u5bf9\u7eaf\u6b63\u7684\u6b63\u5f26\u6ce2\u5f62\uff0c\u540c\u6837\u7531\u4e8e\u8fd9\u4e9b\u5bb9\u6297\u7279\u6027\uff0c\u57fa\u4e8e FET \u7684 Colpitts \u632f\u8361\u5668\u53ef\u4ee5\u5728\u975e\u5e38\u9ad8\u7684\u9891\u7387\u4e0b\u5de5\u4f5c\u3002\u5f53\u7136\uff0c\u4efb\u4f55\u7528\u4f5c\u653e\u5927\u8bbe\u5907\u7684\u8fd0\u7b97\u653e\u5927\u5668\u6216 FET \u90fd\u5fc5\u987b\u80fd\u591f\u5728\u6240\u9700\u7684\u9ad8\u9891\u4e0b\u5de5\u4f5c\u3002
\u63a5\u4e0b\u6765\u5bf9\u4e00\u4e9b\u6bd4\u8f83\u5e38\u89c1\u7684 Colpitts \u6676\u4f53\u632f\u8361\u5668\u7535\u8def\u56fe\u5206\u6790
\u4e94\u3001Colpitts \u6676\u4f53\u632f\u8361\u5668\u7535\u8def 1<\/strong>
\u8fd9\u79cd\u7c7b\u578b\u7684\u6676\u4f53\u632f\u8361\u5668\uff08\u5982\u4e0b\u56fe\uff09\u662f\u56f4\u7ed5\u4e00\u4e2a\u516c\u5171\u96c6\u7535\u6781\uff08\u53d1\u5c04\u6781\u8ddf\u968f\uff09\u653e\u5927\u5668\u8bbe\u8ba1\u7684\u3002R 1\u548cR 2\u7535\u963b\u7f51\u7edc\u8bbe\u7f6e\u57fa\u6781\u4e0a\u7684\u76f4\u6d41\u504f\u7f6e\u7535\u5e73\uff0c\u800c\u53d1\u5c04\u6781\u7535\u963bR E\u8bbe\u7f6e\u8f93\u51fa\u7535\u538b\u7535\u5e73\u3002\u7535\u963bR 2\u8bbe\u7f6e\u5f97\u5c3d\u53ef\u80fd\u5927\uff0c\u4ee5\u9632\u6b62\u8d1f\u8f7d\u5230\u5e76\u8054\u6676\u4f53\u3002
\u6676\u4f53\u7ba1 2N4265 \u662f\u4e00\u79cd\u901a\u7528 NPN \u6676\u4f53\u7ba1\uff0c\u8fde\u63a5\u5728\u516c\u5171\u96c6\u7535\u6781\u914d\u7f6e\u4e2d\uff0c\u80fd\u591f\u4ee5\u8d85\u8fc7 100Mhz \u7684\u5f00\u5173\u901f\u5ea6\u8fd0\u884c\uff0c\u8fdc\u9ad8\u4e8e\u5927\u7ea6 1MHz \u548c 5MHz \u4e4b\u95f4\u7684\u6676\u4f53\u57fa\u9891\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Colpitts \u6676\u4f53\u632f\u8361\u5668\u7535\u8def\u56fe
\u4e0a\u56fe\u7684Colpitts \u6676\u4f53\u632f\u8361\u5668\u7535\u8def\u56fe\u663e\u793a\u7535\u5bb9C1\u548cC2\u5206\u6d41\u6676\u4f53\u7ba1\u7684\u8f93\u51fa\uff0c\u4ece\u800c\u51cf\u5c11\u4e86\u53cd\u9988\u4fe1\u53f7\u3002\u56e0\u6b64\uff0c\u6676\u4f53\u7ba1\u7684\u589e\u76ca\u9650\u5236\u4e86C1\u548cC2\u7684\u6700\u5927\u503c\u3002\u8f93\u51fa\u5e45\u5ea6\u5e94\u4fdd\u6301\u8f83\u4f4e\uff0c\u4ee5\u907f\u514d\u6676\u4f53\u4e2d\u8fc7\u591a\u7684\u529f\u8017\uff0c\u5426\u5219\u4f1a\u56e0\u8fc7\u5ea6\u632f\u52a8\u800c\u635f\u574f\u81ea\u8eab\u3002
\u516d\u3001Colpitts \u6676\u4f53\u632f\u8361\u5668\u7535\u8def 2<\/strong>
\u8be5\u7535\u8def\uff08\u5982\u4e0b\u56fe\u6240\u793a\uff09\u4f7f\u7528\u7531 C1 \u548c C2 \u7ec4\u6210\u7684\u7535\u5bb9\u5206\u538b\u5668\u7f51\u7edc\u6765\u63d0\u4f9b\u53cd\u9988\uff0c\u5e76\u4e14\u8f93\u51fa\u53d6\u81ea\u53d1\u5c04\u5668\uff0c\u5982\u56fe\u6240\u793a\u3002\u6216\u8005\u53ef\u4ee5\u5728\u96c6\u7535\u6781\u7535\u8def\u4e2d\u653e\u7f6e\u4e00\u4e2a\u7535\u963b\u6216\u627c\u6d41\u5708\u5e76\u4ece\u90a3\u91cc\u83b7\u53d6\u8f93\u51fa\u3002\u5728\u8fd9\u4e24\u79cd\u60c5\u51b5\u4e0b\uff0c\u660e\u667a\u7684\u505a\u6cd5\u662f\u5728\u6676\u4f53\u632f\u8361\u5668\u7535\u8def\u4e4b\u540e\u4f7f\u7528\u7f13\u51b2\u5668\uff0c\u4ee5\u786e\u4fdd\u65bd\u52a0\u6700\u5c0f\u8d1f\u8f7d\u3002
\u5728\u8fd9\u79cd\u914d\u7f6e\u4e2d\uff0c\u6676\u4f53\u4ee5\u5e76\u8054\u6a21\u5f0f\u8fd0\u884c\u3002\u5728\u6b64\u6a21\u5f0f\u4e0b\u8fd0\u884c\u65f6\uff0c\u5e94\u4e3a\u6676\u4f53\u63d0\u4f9b\u4e00\u4e2a\u8d1f\u8f7d\u7535\u5bb9\uff0c\u4ee5\u5728\u5176\u6b63\u786e\u9891\u7387\u4e0b\u8fd0\u884c\u3002\u8be5\u8d1f\u8f7d\u7535\u5bb9\u7531\u6676\u4f53\u6307\u5b9a\uff0c\u901a\u5e38\u4e3a 20 \u6216 30 pF\u3002\u6676\u4f53\u632f\u8361\u5668\u7535\u8def\u5c06\u88ab\u8bbe\u8ba1\u4e3a\u5c06\u8be5\u7535\u5bb9\u5448\u73b0\u7ed9\u6676\u4f53\u3002\u5176\u4e2d\u5927\u90e8\u5206\u5c06\u7531\u4e24\u4e2a\u7535\u5bb9\u5668C1 \u548c C2 \u7ec4\u6210\uff0c\u5c3d\u7ba1\u7535\u8def\u7684\u5176\u4f59\u5143\u4ef6\u5c06\u63d0\u4f9b\u4e00\u4e9b\u7535\u5bb9\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Colpitts \u6676\u4f53\u7ba1\u6676\u4f53\u632f\u8361\u5668\u7535\u8def\u56fe
\u8be5\u7535\u8def\u7684\u7f3a\u70b9\u662f\u7535\u963b\u504f\u7f6e\u94fe\u5206\u6d41\u4e86 C1 \u548c C2 \u7684\u4e32\u8054\u7ec4\u5408\u4ee5\u53ca\u6676\u4f53\u3002\u8fd9\u610f\u5473\u7740\u6676\u4f53\u632f\u8361\u5668\u7535\u8def\u4e2d\u9700\u8981\u989d\u5916\u7684\u589e\u76ca\u548c\u7535\u6d41\u6765\u514b\u670d\u8fd9\u4e00\u70b9\uff0c\u5e76\u4e14\u7a33\u5b9a\u6027\u53ef\u80fd\u4f1a\u53d7\u5230\u4e00\u5b9a\u7a0b\u5ea6\u7684\u5f71\u54cd\u3002\u504f\u7f6e\u7535\u963b\u7684\u53e6\u4e00\u4e2a\u4f5c\u7528\u662f\u964d\u4f4e\u6676\u4f53\u7684 Q\u3002
\u6709\u6e90\u5668\u4ef6\u4f7f\u7528\u573a\u6548\u5e94\u6676\u4f53\u7ba1\u53ef\u4ee5\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u4f46\u8fd9\u4e9b\u5668\u4ef6\u901a\u5e38\u4e0d\u5982\u53cc\u6781\u5668\u4ef6\u7a33\u5b9a\uff0c\u800c\u4e14\u5b83\u4eec\u901a\u5e38\u9700\u8981\u66f4\u9ad8\u7684\u5de5\u4f5c\u7535\u6d41\u3002
\u5728\u6676\u4f53\u4e24\u7aef\u653e\u7f6e\u4e00\u4e2a\u5c0f\u578b\u5fae\u8c03\u7535\u5bb9\u4e5f\u5f88\u5e38\u89c1\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u6676\u4f53\u632f\u8361\u5668\u7684\u9891\u7387\u53ef\u4ee5\u5fae\u8c03\u5230\u6240\u9700\u7684\u7cbe\u786e\u9891\u7387\u3002
1\u3001\u6676\u632f\u7535\u8def\u5143\u5668\u4ef6\u5178\u578b\u503c
\u7535\u8def\u6761\u4ef6\u57fa\u672c\u4e0a\u7531\u7535\u5bb9 C1 \u548c C2 \u4ee5\u53ca\u504f\u7f6e\u7535\u963bR1 \u548c R2 \u4ee5\u53ca\u53d1\u5c04\u6781\u7535\u963b R3 \u63a7\u5236\u3002\u7531\u4e8e\u7535\u8def\u4e0e\u9891\u7387\u6709\u5173\uff0c\u56e0\u6b64\u503c\u5c06\u6839\u636e\u5de5\u4f5c\u9891\u7387\u800c\u53d8\u5316\uff0c\u5178\u578b\u503c\u5982\u4e0b\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Colpitts \u6676\u4f53\u632f\u8361\u5668\u7535\u8def–\u5143\u5668\u4ef6\u5178\u578b\u503c
\u8fd9\u4e9b\u503c\u5c06\u4e3a\u8bb8\u591a\u60c5\u51b5\u63d0\u4f9b\u4e00\u4e2a\u5f88\u597d\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u6676\u4f53\u7ba1\u53ef\u4ee5\u662f BC109 \u6216\u7c7b\u4f3c\u7684\u901a\u7528\u6676\u4f53\u7ba1\u3002
\u4e03\u3001Colpitts \u6676\u4f53\u632f\u8361\u5668\u7535\u8def3<\/strong>
\u4ea7\u751f\u6b63\u5f26\u6ce2\u5f62\u7684\u6240\u6709\u5176\u4ed6\u632f\u8361\u5668\u7535\u8def\u90fd\u4f7f\u7528 LC \u8c10\u632f\u7535\u8def\uff0c\u9664\u4e86\u4e00\u4e9b\u7535\u5b50\u7535\u8def\uff0c\u4f8b\u5982 RC \u632f\u8361\u5668\u3001Wien-Robinson \u632f\u8361\u5668\u548c\u4e00\u4e9b\u4e0d\u9700\u8981\u989d\u5916\u7535\u611f\u7684\u6676\u4f53\u632f\u8361\u5668\u3002
\u4e0b\u56fe\u4e3a\u4e00\u4e2aColpitts \u6676\u4f53\u632f\u8361\u5668\u7535\u8def\u3002
\u7531\u4e00\u4e2a\u5177\u6709\u5171\u53d1\u5c04\u6781\u914d\u7f6e\u6676\u4f53\u7ba1\u7684 RC \u8026\u5408\u653e\u5927\u5668\u7ec4\u6210\uff0c\u8026\u5408\u7535\u5bb9\u901a\u8fc7\u63d0\u4f9b\u4ece\u96c6\u7535\u6781\u5230\u50a8\u80fd\u7535\u8def\u7684\u4ea4\u6d41\u8def\u5f84\u6765\u963b\u65ad\u76f4\u6d41\u3002
\u6bcf\u5f53\u63a5\u901a\u7535\u6e90\u65f6\uff0c\u4e0a\u8ff0\u7535\u8def\u4e2d\u6240\u793a\u7684\u7535\u5bb9 C1 \u548c C2 \u5f00\u59cb\u5145\u7535\uff0c\u5f53\u7535\u5bb9\u5145\u6ee1\u7535\u540e\uff0c\u7535\u5bb9\u5668\u5f00\u59cb\u901a\u8fc7\u7535\u8def\u4e2d\u7684\u7535\u611f L1 \u653e\u7535\uff0c\u4ece\u800c\u5728\u8c10\u632f\u7535\u8def\u4e2d\u5f15\u8d77\u963b\u5c3c\u8c10\u6ce2\u632f\u8361\u3002
\u56e0\u6b64\uff0c\u632f\u8361\u7535\u8def\u4e2d\u7684\u632f\u8361\u7535\u6d41\u5728 C1 \u548c C2 \u4e24\u7aef\u4ea7\u751f\u4ea4\u6d41\u7535\u538b\u3002
\u5f53\u8fd9\u4e9b\u7535\u5bb9\u5b8c\u5168\u653e\u7535\u65f6\uff0c\u5b58\u50a8\u5728\u7535\u5bb9\u4e2d\u7684\u9759\u7535\u80fd\u91cf\u4ee5\u78c1\u901a\u91cf\u7684\u5f62\u5f0f\u8f6c\u79fb\u5230\u7535\u611f\uff0c\u4ece\u800c\u4f7f\u7535\u611f\u5145\u7535\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Colpitts \u6676\u4f53\u632f\u8361\u5668\u7535\u8def\u56fe
\u4e0a\u9762\u7535\u8def\u4e2d\u7684 Re \u7535\u963b\u4e3a\u7535\u8def\u63d0\u4f9b\u4e86\u9488\u5bf9\u6e29\u5ea6\u53d8\u5316\u7684\u7a33\u5b9a\u6027\uff0c\u4e0e Re \u5e76\u8054\u7684\u7535\u8def\u4e2d\u8fde\u63a5\u7684\u7535\u5bb9\u5668 Ce \u4e3a\u653e\u5927\u7684\u4ea4\u6d41\u4fe1\u53f7\u63d0\u4f9b\u4f4e\u7535\u6297\u8def\u5f84\uff0c\u5145\u5f53\u65c1\u8def\u7535\u5bb9\u3002\u7535\u963bR1 \u548c R2\u5f62\u6210\u7535\u8def\u7684\u5206\u538b\u5668\uff0c\u5e76\u4e3a\u6676\u4f53\u7ba1\u63d0\u4f9b\u504f\u7f6e\u3002
\u516b\u3001Colpitts \u6676\u4f53\u632f\u8361\u5668\u7535\u8def 4<\/strong>
\u4e0b\u56fe\u4e3a\u4f7f\u7528\u53cc\u6781\u6676\u4f53\u7ba1\u6216\u5404\u79cd\u7c7b\u578b\u7684 FET \u6784\u6210\u7684 Colpitts \u632f\u8361\u5668\u7535\u8def\u3002
\u7535\u5bb9\u5206\u538b\u5668\u7528\u4e8e\u53cd\u9988\uff0c\u6676\u4f53\u7ba1 Q1 \u91c7\u7528\u5171\u53d1\u5c04\u6781\u914d\u7f6e\uff0c\u5728\u4e0a\u5c42\u7535\u8def\u4e2d\uff0cR1 \u548c R2 \u7528\u4e8e\u6676\u4f53\u7ba1\u7684\u504f\u7f6e\uff0cC1 \u7528\u4f5c\u4fdd\u62a4\u57fa\u6781\u514d\u53d7\u5c04\u9891\u566a\u58f0\u5f71\u54cd\u7684\u65c1\u8def\u7535\u5bb9\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Colpitts \u6676\u4f53\u632f\u8361\u5668\u7535\u8def\u56fe
\u5728\u8fd9\u79cd\u914d\u7f6e\u4e2d\uff0c\u7531\u4e8e\u4ece\u96c6\u7535\u6781\u5230\u5730\u7684\u8fde\u63a5\uff0c\u6676\u4f53\u5c06\u5145\u5f53\u5206\u6d41\u5668\u3002\u5e76\u8054\u8c10\u632f\u914d\u7f6e\uff0c\u7535\u5bb9 C2 \u548c C3 \u7528\u4e8e\u53cd\u9988\uff0c\u6676\u4f53 Q2 \u8fde\u63a5\u4e3a\u5e76\u8054\u8c10\u632f\u7535\u8def\u3002
\u5728\u8fd9\u79cd\u914d\u7f6e\u4e2d\uff0c\u8f93\u51fa\u653e\u5927\u7387\u5f88\u4f4e\uff0c\u4ee5\u907f\u514d\u6676\u4f53\u4e2d\u8fc7\u591a\u7684\u529f\u8017\u3002
\u4e5d\u3001Colpitts \u632f\u8361\u5668\u7535\u8def\u7684\u5e94\u7528<\/strong>
\u2022\u7528\u4e8e\u751f\u6210\u5177\u6709\u975e\u5e38\u9ad8\u9891\u7387\u7684\u6b63\u5f26\u8f93\u51fa\u4fe1\u53f7\u3002
\u2022\u4f7f\u7528 SAW \u5668\u4ef6\u7684 Colpitts \u632f\u8361\u5668\u53ef\u7528\u4f5c\u6e29\u5ea6\u4f20\u611f\u5668\u7b49\u4e0d\u540c\u7c7b\u578b\u7684\u4f20\u611f\u5668\u3002\u7531\u4e8e\u8be5\u7535\u8def\u4e2d\u4f7f\u7528\u7684\u8bbe\u5907\u5bf9\u6270\u52a8\u9ad8\u5ea6\u654f\u611f\uff0c\u56e0\u6b64\u5b83\u76f4\u63a5\u4ece\u5176\u8868\u9762\u611f\u5e94\u3002
\u2022\u7ecf\u5e38\u7528\u4e8e\u6d89\u53ca\u975e\u5e38\u5e7f\u6cdb\u7684\u9891\u7387\u8303\u56f4\u7684\u5e94\u7528\u3002
\u2022\u7528\u4e8e\u9700\u8981\u65e0\u963b\u5c3c\u548c\u8fde\u7eed\u632f\u8361\u7684\u5e94\u7528\u3002
\u2022\u5728\u6253\u7b97\u7ecf\u5e38\u627f\u53d7\u9ad8\u6e29\u548c\u4f4e\u6e29\u7684\u60c5\u51b5\u4e0b\uff0c\u8fd9\u79cd\u632f\u8361\u5668\u662f\u9996\u9009\u3002
\u2022\u8be5\u632f\u8361\u5668\u4e0e\u67d0\u4e9b\u5668\u4ef6\uff08\u800c\u4e0d\u662f\u8c10\u632f\u7535\u8def\uff09\u7684\u7ec4\u5408\u53ef\u7528\u4e8e\u5b9e\u73b0\u51fa\u8272\u7684\u6e29\u5ea6\u7a33\u5b9a\u6027\u548c\u9ad8\u9891\u7387\u3002
\u2022\u7528\u4e8e\u79fb\u52a8\u548c\u65e0\u7ebf\u7535\u901a\u4fe1\u7684\u53d1\u5c55\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5e38\u89c1\u7684\u6676\u4f53\u632f\u8361\u7535\u8def\u6709 Colpitts\u8003\u6bd5\u5179\u632f\u8361\u5668\uff08\u7535\u5bb9\u4e09\u70b9\u5f0f\u632f\u8361\u5668\uff09\u3001Pierce\u76ae\u5c14\u65af\u632f\u8361\u5668\u3001Hartle<\/p><\/div>\n

\u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-769","post","type-post","status-publish","format-standard","hentry","category-electronics"],"_links":{"self":[{"href":"https:\/\/www.ingvs.com\/index.php\/wp-json\/wp\/v2\/posts\/769","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ingvs.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ingvs.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ingvs.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ingvs.com\/index.php\/wp-json\/wp\/v2\/comments?post=769"}],"version-history":[{"count":2,"href":"https:\/\/www.ingvs.com\/index.php\/wp-json\/wp\/v2\/posts\/769\/revisions"}],"predecessor-version":[{"id":786,"href":"https:\/\/www.ingvs.com\/index.php\/wp-json\/wp\/v2\/posts\/769\/revisions\/786"}],"wp:attachment":[{"href":"https:\/\/www.ingvs.com\/index.php\/wp-json\/wp\/v2\/media?parent=769"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ingvs.com\/index.php\/wp-json\/wp\/v2\/categories?post=769"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ingvs.com\/index.php\/wp-json\/wp\/v2\/tags?post=769"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}