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\u9a6c\u8f66\u8f66\u8f6e\u7684\u4f8b\u5b50\u3002<\/em><br>\u8fd9\u4e24\u79cd\u65b9\u5411\u90fd\u53ef\u4ee5\u770b\u505a\u662f\u6b63\u786e\u7684\u65b9\u5411\uff0c\u53d6\u51b3\u4e8e\u60a8\u5982\u4f55\u201c\u770b\u201d\u8f66\u8f6e\uff0c\u4f46\u6211\u4eec\u77e5\u9053\u5df2\u7ecf\u53d1\u751f\u4e86\u4fe1\u53f7\u6df7\u53e0\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u7cfb\u7edf\u4e2d\u51fa\u73b0\u4e86\u6709\u5bb3\u7684\u9891\u7387\u6210\u5206\uff0c\u6211\u4eec\u4e0d\u80fd\u5c06\u5176\u4e0e\u771f\u5b9e\u503c\u533a\u5206\u5f00\uff0c\u540c\u65f6\u51fa\u73b0\u4e86\u6b63\u8f6c\u548c\u5012\u8f6c\u7684\u8fd0\u52a8\u4fe1\u606f\u3002\u6211\u4eec\u4e00\u822c\u770b\u5230\u5012\u8f6c\u6210\u5206\u6216\u6b63\u8f6c\u6210\u5206\u7684\u201c\u7ea6\u6570\u201d\u6216\u201c\u955c\u50cf\u201d\u3002\u7531\u4e8e\u662f\u773c\/\u8111\u76f8\u7ed3\u5408\u7684\u65b9\u5f0f\u5904\u7406\u6570\u636e,\u56e0\u6b64\u6211\u4eec\u5e76\u4e0d\u80fd\u5bdf\u89c9\u5230\u8f66\u8f6e\u524d\u8f6c\u7684\u4e3b\u8981\u4fe1\u606f\u3002\u53e6\u4e00\u79cd\u6709\u610f\u601d\u7684\u73b0\u8c61\u662f\u91c7\u6837\u7387\u4e0e\u8f66\u8f6e\u8f6c\u901f\u4e25\u683c\u76f8\u7b49\u65f6\uff0c\u7531\u4e8e\u6807\u8bb0\u59cb\u7ec8\u51fa\u73b0\u5728\u8f66\u8f6e\u7684\u76f8\u540c\u4f4d\u7f6e\uff0c\u6240\u4ee5\u6570\u636e\u51e0\u4e4e\u6ca1\u6709\u63d0\u4f9b\u6709\u7528\u4fe1\u606f\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6ca1\u6709\u4eba\u80fd\u6e05\u695a\u8f66\u8f6e\u5728\u8f6c\u52a8\u8fd8\u662f\u9759\u6b62\u3002<br>\u73b0\u5728\u8f6c\u5165\u6570\u5b66\u9886\u57df\uff0c\u5047\u8bbe\u8f66\u8f6e\u4e3a\u5355\u4f4d\u5706\uff0c\u91c7\u7528\u6b63\u5f26\u548c\u4f59\u5f26\u5750\u6807\u3002\u5982\u679c\u5728\u4f59\u5f26\u503c\u7684\u6b63\u5411\u548c\u8d1f\u5411\u5cf0\u503c\u91c7\u6837(180\u5ea6\u9519\u76f8)\uff0c\u90a3\u4e48\u5c31\u6ee1\u8db3\u5948\u594e\u65af\u7279\u6761\u4ef6\uff0c\u80fd\u591f\u5229\u7528\u4e24\u4e2a\u91c7\u6837\u6570\u636e\u70b9\u91cd\u6784\u539f\u59cb\u4f59\u5f26\u503c\u3002\u6240\u4ee5\uff0c\u5948\u594e\u65af\u7279\u6781\u9650\u662f\u91cd\u6784\u539f\u59cb\u4fe1\u53f7\u7684\u5173\u952e\u3002\u5f53\u589e\u52a0\u7684\u70b9\u8d8a\u6765\u8d8a\u591a\u65f6\uff0c\u590d\u73b0\u539f\u59cb\u4fe1\u53f7\u7684\u80fd\u529b\u5c31\u63d0\u9ad8\u4e86\u3002<br>\u8f6c\u5230\u9891\u57df\uff0c\u56fe2\u6240\u793a\u4e3a\u91c7\u6837\u6570\u636e\u7cfb\u7edf\u7684\u9891\u7387\u54cd\u5e94\u3002\u6ce8\u610f\uff0c\u6570\u636e\u5728\u91c7\u6837\u7387\u7684\u500d\u6570\u5904\u91cd\u590d(\u539f\u59cb\u4fe1\u53f7\u7684\u201c\u955c\u50cf\u201d)\uff1b\u8fd9\u662f\u91c7\u6837\u6570\u636e\u7cfb\u7edf\u7684\u4e00\u79cd\u57fa\u672c\u7279\u5f81\u3002\u56fe2a\u4e2d\uff0c\u6ee1\u8db3\u5948\u594e\u65af\u7279\u6761\u4ef6\uff0c\u6709\u7528\u9891\u5e26\u5185\u6ca1\u6709\u6df7\u53e0\u73b0\u8c61\u3002\u7136\u800c\uff0c\u5728\u56fe2b\u4e2d\uff0c\u7531\u4e8e\u6709\u7528\u9891\u5e26\u5185\u7684\u6700\u9ad8\u9891\u7387\u5927\u4e8e\u4e8c\u5206\u4e4b\u4e00\u91c7\u6837\u7387\uff0c\u4e0d\u518d\u6ee1\u8db3\u5948\u594e\u65af\u7279\u6761\u4ef6\u3002\u91cd\u53e0\u7684\u533a\u57df\u53d1\u751f\u4e86\u6df7\u53e0\uff1b\u9891\u7387\u4e3afT\u7684\u4fe1\u53f7\u4e5f\u51fa\u73b0\u5728fT&#8217;\u5904\uff0c\u4e0e\u9a6c\u8f66\u8f66\u8f6e\u7684\u6df7\u53e0\u76f8\u4f3c\u3002<img decoding=\"async\" src=\"https:\/\/www.maximintegrated.com\/content\/dam\/images\/design\/tech-docs\/928\/DI101Fig02a.gif\" alt=\"\u91c7\u6837\u6570\u636e\u7cfb\u7edf\u9891\u7387\u54cd\u5e94\uff0c\u65e0\u6df7\u53e0\u3002\"><br><em>\u56fe2a. \u91c7\u6837\u6570\u636e\u7cfb\u7edf\u9891\u7387\u54cd\u5e94\uff0c\u65e0\u6df7\u53e0\u3002<\/em><img decoding=\"async\" src=\"https:\/\/www.maximintegrated.com\/content\/dam\/images\/design\/tech-docs\/928\/DI101Fig02b.gif\" alt=\"\u91c7\u6837\u6570\u636e\u7cfb\u7edf\u9891\u7387\u54cd\u5e94\uff0c\u53d1\u751f\u6df7\u53e0\u3002\"><br><em>\u56fe2b. \u91c7\u6837\u6570\u636e\u7cfb\u7edf\u9891\u7387\u54cd\u5e94\uff0c\u53d1\u751f\u6df7\u53e0\u3002<\/em><br>\u6b20\u91c7\u6837<br>\u6b20\u91c7\u6837\u662f\u4e00\u79cd\u529f\u80fd\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u53ef\u6709\u6548\u7528\u4e8e\u6240\u9009\u5e94\u7528\u3002\u6b20\u91c7\u6837\u5141\u8bb8ADC\u4f5c\u4e3a\u4e00\u4e2a\u6df7\u9891\u5668\uff0c\u80fd\u591f\u63a5\u6536\u8c03\u5236\u9ad8\u9891\u8f7d\u6ce2\u4fe1\u53f7\u5e76\u4ea7\u751f\u8f83\u4f4e\u9891\u7387\u7684\u955c\u50cf\u3002\u8fd9\u79cd\u65b9\u5f0f\u4e0b\uff0c\u5c31\u50cf\u4e0b\u53d8\u9891\u5668\u3002\u53e6\u4e00\u79cd\u4e3b\u8981\u4f18\u70b9\u662f\u5141\u8bb8ADC\u7684\u91c7\u6837\u7387\u4f4e\u4e8e\u5948\u594e\u65af\u7279\u9891\u7387\uff0c\u4e00\u822c\u5177\u6709\u8f83\u660e\u663e\u7684\u6210\u672c\u4f18\u52bf\u3002\u4f8b\u5982\uff0c\u5047\u8bbe\u8c03\u5236\u8f7d\u6ce2\u4e3a10MHz\uff0c\u5e26\u5bbd\u4e3a100kHz (\u00b150kHz\uff0c\u4e2d\u5fc3\u9891\u7387\u4e3a10MHz)\u3002\u4ee54MHz\u8fdb\u884c\u6b20\u91c7\u6837\uff0c\u4ea7\u751f1\u9636\u548c\u4e0e\u5dee\u9879(f1 + f2\u548cf1 &#8211; f2)\uff0c\u5206\u522b\u4e3a14MHz\u548c6Mz\uff1b2\u9636\u9879(2f1\u30012f2\u30012f1 + f2\u3001f1 + 2f2\u3001| 2f1 &#8211; f2 |\u3001| f1 &#8211; 2f2 |)\uff0c\u5206\u522b\u4e3a8MHz\u300120MHz\u300118MHz\u30012MHz\u300124MHz\u548c16MHz\u3002\u51fa\u73b0\u57282MHz\u5904\u7684\u955c\u50cf\u4fe1\u53f7\u4e3a\u6709\u7528\u4fe1\u53f7\u3002\u6ce8\u610f\uff0c\u6211\u4eec\u7684\u539f\u59cb\u4fe1\u53f7\u572810MHz\uff0c\u901a\u8fc7\u5bf9\u5176\u8fdb\u884c\u6570\u5b57\u5316\u57282MHz\u4ea7\u751f\u4e86\u955c\u50cf\u3002\u73b0\u5728\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u6570\u5b57\u57df\u8fdb\u884c\u4fe1\u53f7\u5904\u7406(\u6ee4\u6ce2\u548c\u6df7\u9891)\uff0c\u6062\u590d\u539f\u59cb50kHz\u4fe1\u53f7\u3002\u8be5\u8fc7\u7a0b\u65e0\u9700\u5927\u5e45\u7684\u6a21\u62df\u5904\u7406\uff0c\u8fd9\u662f\u5176\u4e3b\u8981\u4f18\u52bf\u4e4b\u4e00\u3002\u7531\u4e8e\u6240\u6709\u5904\u7406\u90fd\u5728\u6570\u5b57\u57df\u5b8c\u6210\uff0c\u5982\u679c\u9700\u8981\u5bf9\u7535\u8def\u7684\u6027\u80fd\u548c\u7279\u6027\u8fdb\u884c\u66f4\u6539\uff0c\u53ea\u9700\u4fee\u6539\u8f6f\u4ef6\u5373\u53ef\u3002\u76f8\u5bf9\u800c\u8a00\uff0c\u5bf9\u4e8e\u6a21\u62df\u8bbe\u8ba1\uff0c\u5982\u679c\u9700\u8981\u66f4\u6539\u7535\u8def\u6027\u80fd\uff0c\u9700\u8981\u6539\u53d8\u7535\u8def\u786c\u4ef6\u5143\u4ef6\u548c\u5e03\u5c40\uff0c\u5e76\u4e14\u6210\u672c\u76f8\u5f53\u9ad8\u3002<br>\u6b20\u91c7\u6837\u7684\u4e00\u9879\u7f3a\u70b9\u662f\u6709\u7528\u9891\u5e26\u5185\u53ef\u80fd\u51fa\u73b0\u6709\u5bb3\u4fe1\u53f7\uff0c\u60a8\u4e0d\u80fd\u5c06\u5176\u4e0e\u6709\u7528\u4fe1\u53f7\u533a\u5206\u5f00\u3002\u6b64\u5916\uff0c\u6b20\u91c7\u6837\u65f6\uff0cADC\u8f93\u5165\u7684\u9891\u7387\u8303\u56f4\u5f80\u5f80\u975e\u5e38\u5bbd\u3002\u5728\u4e0a\u4f8b\u4e2d\uff0c\u5373\u4f7f\u91c7\u6837\u7387\u4e3a4MHz\uff0cADC\u524d\u7aef\u4ecd\u7136\u5fc5\u987b\u91c7\u683710MHz\u4fe1\u53f7\u3002\u76f8\u5bf9\u800c\u8a00\uff0c\u5982\u679c\u5728ADC\u4e4b\u524d\u5229\u7528\u6a21\u62df\u6df7\u9891\u5668\u5c06\u8c03\u5236\u8f7d\u6ce2\u4fe1\u53f7\u5411\u4e0b\u642c\u79fb\u5230\u57fa\u5e26\uff0c\u90a3\u4e48ADC\u7684\u8f93\u5165\u5e26\u5bbd\u53ea\u9700\u8981\u4e3a50kHz\uff0c\u800c\u975e4MHz\uff0c\u964d\u4f4e\u4e86ADC\u524d\u7aef\u548c\u8f93\u5165\u6ee4\u6ce2\u8981\u6c42\u3002<img decoding=\"async\" src=\"https:\/\/www.maximintegrated.com\/content\/dam\/images\/design\/tech-docs\/928\/DI101Fig03a.gif\" alt=\"\u6b20\u91c7\u6837\u793a\u4f8b\"><br><em>\u56fe3a. \u6b20\u91c7\u6837\u793a\u4f8b\u3002<\/em><br><img decoding=\"async\" src=\"https:\/\/www.maximintegrated.com\/content\/dam\/images\/design\/tech-docs\/928\/DI101Fig03b.gif\" alt=\"\u6b20\u91c7\u6837\u6570\u5b57\u5316\u7684\u955c\u50cf\u4fe1\u53f7(1\u9636\u548c2\u9636)\"><br><em>\u56fe3b. \u6b20\u91c7\u6837\u6570\u5b57\u5316\u7684\u955c\u50cf\u4fe1\u53f7(1\u9636\u548c2\u9636)\u3002<\/em><br>\u8fc7\u91c7\u6837<br>\u8fc7\u91c7\u6837\u63d0\u4f9b\u6240\u8c13\u7684\u5904\u7406\u589e\u76ca\u3002\u5728\u8fc7\u91c7\u6837\u65f6\uff0c\u4ee5\u8f83\u9ad8\u91c7\u6837\u9891\u7387\u83b7\u5f97\u591a\u51fa\u5b9e\u9645\u9700\u8981\u7684\u91c7\u6837\u6570\u91cf\uff0c\u7136\u540e\u5bf9\u6570\u636e\u6ee4\u6ce2\uff0c\u4ece\u800c\u6709\u6548\u964d\u4f4e\u7cfb\u7edf\u7684\u566a\u5e95(\u5047\u8bbe\u566a\u58f0\u4e3a\u5bbd\u5e26\u767d\u566a\u58f0)\u3002\u8fd9\u4e0d\u540c\u4e8e\u5e73\u5747\uff0c\u540e\u8005\u662f\u83b7\u53d6\u5f88\u591a\u91c7\u6837\uff0c\u566a\u58f0\u88ab\u5e73\u5747\u3002\u53ef\u4ee5\u8fd9\u4e48\u7406\u89e3\u8fc7\u91c7\u6837\uff1a\u5982\u679c\u8f93\u5165\u4fe1\u53f7\u6765\u81ea\u4e8e\u626b\u63cf\u9891\u7387\u7684\u4fe1\u53f7\u6e90\uff0c\u9891\u8c31\u5219\u53ef\u4ee5\u5206\u4e3a\u591a\u4e2a\u8303\u56f4\u6216\u201c\u5bb9\u5668\u201d\uff0c\u6bcf\u4e2a\u5bb9\u5668\u7684\u5e26\u5bbd\u56fa\u5b9a\u3002\u5bbd\u5e26\u566a\u58f0\u5206\u6563\u5728\u6574\u4e2a\u6709\u7528\u9891\u7387\u8303\u56f4\u5185\uff0c\u6240\u4ee5\u6bcf\u4e2a\u5bb9\u5668\u5177\u6709\u7279\u5b9a\u91cf\u7684\u566a\u58f0\u3002\u73b0\u5728\uff0c\u5982\u679c\u63d0\u9ad8\u91c7\u6837\u7387\uff0c\u90a3\u4e48\u9891\u7387\u5bb9\u5668\u7684\u6570\u91cf\u4e5f\u589e\u591a\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u51fa\u73b0\u7684\u566a\u58f0\u91cf\u4ecd\u76f8\u540c\uff0c\u4f46\u6211\u4eec\u6709\u66f4\u591a\u7684\u5bb9\u5668\u53ef\u4f9b\u5bb9\u7eb3\u566a\u58f0\u3002\u7136\u540e\u6211\u4eec\u5229\u7528\u6ee4\u6ce2\u5668\u6ee4\u9664\u8d85\u51fa\u6709\u7528\u9891\u5e26\u7684\u566a\u58f0\u3002\u7ed3\u679c\u5c31\u662f\u6bcf\u4e2a\u5bb9\u5668\u7684\u566a\u58f0\u51cf\u5c11\uff0c\u6240\u4ee5\u5c31\u901a\u8fc7\u8fc7\u91c7\u6837\u6709\u6548\u964d\u4f4e\u4e86\u7cfb\u7edf\u7684\u566a\u5e95\u3002<br>\u4e3e\u4f8b\u8bf4\u660e\uff0c\u5982\u679c\u6211\u4eec\u6709\u4e00\u4e2a2ksps ADC (\u4e0b\u5f0f\u4e2d\u4f7f\u75281kHz\u5948\u594e\u65af\u7279\u6781\u9650)\u548c1kHz\u4fe1\u53f7\uff0cADC\u4e4b\u540e\u4e3a1kHz\u6570\u5b57\u6ee4\u6ce2\u5668\uff0c\u5904\u7406\u589e\u76ca\u7531\u4e0b\u5f0f\u7ed9\u51fa\uff1a-10 \u00d7 log (1kHz\/1kHz) = 0dB\u3002\u5982\u679c\u4eec\u5c06\u91c7\u6837\u7387\u589e\u5927\u81f310ksps\uff0c\u5904\u7406\u589e\u76ca\u73b0\u5728\u4e3a-10 \u00d7 log (1kHz\/5kHz) = 7dB\uff0c\u6216\u8005\u8bf4\u5927\u7ea61\u4f4d\u5206\u8fa8\u7387(1\u4f4d\u5927\u7ea6\u76f8\u5f53\u4e8e\u4fe1\u566a\u6bd4(SNR)\u63d0\u9ad86dB)\u3002\u901a\u8fc7\u8fc7\u91c7\u6837\uff0c\u566a\u58f0\u6ca1\u6709\u51cf\u5c11\uff0c\u800c\u662f\u5206\u6563\u5728\u66f4\u5bbd\u7684\u5e26\u5bbd\u5185\uff1b\u5c06\u90e8\u5206\u566a\u58f0\u7f6e\u4e8e\u6709\u7528\u5e26\u5bbd\u8303\u56f4\u4e4b\u5916\uff0c\u6548\u679c\u5c31\u76f8\u5f53\u4e8e\u51cf\u5c11\u4e86\u566a\u58f0\u3002\u8fd9\u79cd\u566a\u58f0\u6539\u5584\u57fa\u4e8e\u4ee5\u4e0b\u516c\u5f0f\uff1a<br>SNR\u6539\u5584(dB) = 10 \u00d7 LOGA\/B\uff0c\u5176\u4e2dA\u7b49\u4e8e\u566a\u58f0\uff0cB\u7b49\u4e8e\u8fc7\u91c7\u6837\u566a\u58f0\u3002<br>\u8868\u8ff0\u8fd9\u4e00\u8fc7\u7a0b\u7684\u53e6\u4e00\u79cd\u65b9\u5f0f\u662f\uff1a\u8fc7\u91c7\u6837\u964d\u4f4e\u4e86\u5e26\u5185RMS\u91cf\u5316\u566a\u58f0\uff0c\u7cfb\u6570\u4e3a\u8fc7\u91c7\u6837\u7387\u7684\u5e73\u65b9\u6839\u3002\u6216\u8005\uff0c\u5982\u679c\u566a\u58f0\u964d\u4f4e\u4e8c\u5206\u4e4b\u4e00\uff0c\u5219\u76f8\u5f53\u4e8e3dB\u6709\u6548\u5904\u7406\u589e\u76ca\u3002\u4e0d\u8981\u5fd8\u4e86\uff0c\u6211\u4eec\u8fd9\u91cc\u4ec5\u8ba8\u8bba\u4e86\u5bbd\u5e26\u566a\u58f0\u3002\u8fc7\u91c7\u6837\u4e0d\u80fd\u7b80\u5355\u6d88\u9664\u5176\u5b83\u566a\u58f0\u6e90\u548c\u5176\u4ed6\u8bef\u5dee\u3002<br>\u6297\u6df7\u53e0\u6ee4\u6ce2\u5668<br>\u6709\u4e86\u4ee5\u4e0a\u80cc\u666f\u77e5\u8bc6\u540e\uff0c\u6211\u4eec\u73b0\u5728\u8ba8\u8bba\u6297\u6df7\u53e0\u6ee4\u6ce2\u5668\u3002\u5728\u9009\u62e9\u6ee4\u6ce2\u5668\u65f6\uff0c\u76ee\u6807\u662f\u63d0\u4f9b\u4e00\u4e2a\u622a\u6b62\u9891\u7387\uff0c\u80fd\u4eceADC\u8f93\u5165\u4e2d\u6d88\u9664\u6709\u5bb3\u4fe1\u53f7\u6216\u81f3\u5c11\u5c06\u5176\u8870\u51cf\u81f3\u4e0d\u5bf9\u7535\u8def\u5f62\u6210\u8d1f\u9762\u5f71\u54cd\u3002\u6297\u6df7\u53e0\u6ee4\u6ce2\u5668\u662f\u6ee1\u8db3\u8fd9\u4e00\u8981\u6c42\u7684\u4f4e\u901a\u6ee4\u6ce2\u5668\u3002\u5982\u4f55\u9009\u62e9\u6b63\u786e\u7684\u6ee4\u6ce2\u5668\uff1f\u9700\u8981\u8003\u8651\u7684\u5173\u952e\u53c2\u6570\u662f\u5728\u901a\u5e26\u5185\u7684\u8870\u51cf\u91cf(\u6216\u7eb9\u6ce2)\u3001\u963b\u5e26\u5185\u7684\u9884\u671f\u6ee4\u6ce2\u5668\u6eda\u964d\u3001\u8fc7\u6e21\u533a\u57df\u7684\u9661\u5ea6\uff0c\u4ee5\u53ca\u4e0d\u540c\u9891\u7387\u901a\u8fc7\u6ee4\u6ce2\u5668\u65f6\u7684\u76f8\u4f4d\u5173\u7cfb(\u56fe4a)\u3002<img decoding=\"async\" src=\"https:\/\/www.maximintegrated.com\/content\/dam\/images\/design\/tech-docs\/928\/DI101Fig04a.gif\" alt=\"\u5b9e\u9645\u6ee4\u6ce2\u5668\"><br><em>\u56fe4a. \u5b9e\u9645\u6ee4\u6ce2\u5668\u3002<\/em><br>\u7406\u60f3\u6ee4\u6ce2\u5668\u5177\u6709\u201c\u7816\u5899\u201d\u54cd\u5e94(\u56fe4b)\uff0c\u4e5f\u5c31\u662f\u8bf4\u5176\u8fc7\u6e21\u6bd4\u662f\u65e0\u9650\u5927\u7684\u3002\u7136\u800c\uff0c\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u4e0d\u53ef\u80fd\u5b58\u5728\u8fd9\u79cd\u60c5\u51b5\u3002\u6eda\u964d\u8d8a\u9661\uff0c\u6ee4\u6ce2\u5668\u7684\u201cQ\u201d\u6216\u54c1\u8d28\u56e0\u5b50\u8d8a\u9ad8\uff1bQ\u56e0\u5b50\u8d8a\u9ad8\uff0c\u6ee4\u6ce2\u5668\u7684\u8bbe\u8ba1\u5c31\u8d8a\u590d\u6742\u3002\u8f83\u9ad8\u7684Q\u56e0\u5b50\u4f1a\u9020\u6210\u6ee4\u6ce2\u5668\u4e0d\u7a33\u5b9a\u4ee5\u53ca\u5728\u76f8\u5e94\u7684\u62d0\u70b9\u9891\u7387\u4e0b\u81ea\u632f\u3002\u9009\u62e9\u6ee4\u6ce2\u5668\u7684\u5173\u952e\u662f\u4e86\u89e3\u5e72\u6270\u4fe1\u53f7\u7684\u9891\u7387\u53ca\u5bf9\u5e94\u5e45\u503c\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u624b\u673a\uff0c\u8bbe\u8ba1\u8005\u77e5\u9053\u90bb\u8fd1\u4fe1\u53f7\u7684\u6700\u5dee\u5de5\u4f5c\u6761\u4ef6\u5e45\u503c\u548c\u4f4d\u7f6e\uff0c\u4ece\u800c\u6709\u9488\u5bf9\u6027\u5730\u8fdb\u884c\u8bbe\u8ba1\u3002\u5e76\u4e0d\u662f\u6240\u6709\u4fe1\u53f7\u90fd\u80fd\u5728\u9891\u57df\u9884\u6d4b\uff0c\u751a\u81f3\u6709\u4e9b\u5df2\u77e5\u5e72\u6270\u4fe1\u53f7\u592a\u5927\uff0c\u4e0d\u80fd\u8db3\u591f\u5730\u8870\u51cf\u3002\u4f46\u662f\uff0c\u6839\u636e\u73af\u5883\u548c\u5e94\u7528\uff0c\u60a8\u53ef\u8003\u8651\u5df2\u77e5\u5e72\u6270\u548c\u8bbe\u8ba1\uff0c\u6700\u5927\u7a0b\u5ea6\u964d\u4f4e\u968f\u673a\u5e72\u6270\uff0c\u786e\u4fdd\u5de5\u4f5c\u66f4\u53ef\u9760\u3002<img decoding=\"async\" src=\"https:\/\/www.maximintegrated.com\/content\/dam\/images\/design\/tech-docs\/928\/DI101Fig04b.gif\" alt=\"\u7406\u60f3\u6ee4\u6ce2\u5668\"><br><em>\u56fe4b. \u7406\u60f3\u6ee4\u6ce2\u5668\u3002<\/em><br>\u5df2\u77e5\u6709\u7528\u4fe1\u53f7\u9891\u7387\u540e\uff0c\u5229\u7528\u7b80\u5355\u7684\u6ee4\u6ce2\u7a0b\u5e8f\u786e\u5b9a\u6240\u9700\u7684\u6ee4\u6ce2\u5668\u7ed3\u6784\uff0c\u4ee5\u6ee1\u8db3\u901a\u5e26\u3001\u963b\u5e26\u548c\u8fc7\u6e21\u533a\u57df\u8981\u6c42\u3002\u5728\u56db\u79cd\u57fa\u672c\u6ee4\u6ce2\u5668\u7c7b\u578b\u4e2d\uff0c\u6bcf\u79cd\u90fd\u6709\u5176\u5404\u81ea\u7684\u4f18\u52bf(\u56fe5)\u3002<img decoding=\"async\" src=\"https:\/\/www.maximintegrated.com\/content\/dam\/images\/design\/tech-docs\/928\/DI101Fig05.gif\" alt=\"\u56db\u79cd\u57fa\u672c\u7684\u6ee4\u6ce2\u5668\u7c7b\u578b\"><br><em>\u56fe5. 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