{"id":9342,"date":"2022-08-19T11:40:03","date_gmt":"2022-08-19T03:40:03","guid":{"rendered":"http:\/\/www.szryc.com\/?p=9342"},"modified":"2022-08-19T11:40:03","modified_gmt":"2022-08-19T03:40:03","slug":"%e5%9f%ba%e4%ba%8etl494%e7%9a%84%e9%ab%98%e6%95%88%e9%99%8d%e5%8e%8b%e8%bd%ac%e6%8d%a2%e5%99%a8%e7%94%b5%e8%b7%af","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=9342","title":{"rendered":"\u57fa\u4e8eTL494\u7684\u9ad8\u6548\u964d\u538b\u8f6c\u6362\u5668\u7535\u8def"},"content":{"rendered":"<p><u>\u964d\u538b\u8f6c\u6362\u5668<\/u>\uff08\u964d\u538b\u8f6c\u6362\u5668\uff09\u662f\u4e00\u79cdDC-DC\u00a0<u>\u5f00\u5173<\/u>\u8f6c\u6362\u5668\uff0c\u53ef\u5728\u4fdd\u6301\u6052\u5b9a\u529f\u7387\u5e73\u8861\u7684\u540c\u65f6\u964d\u4f4e\u7535\u538b\u3002\u964d\u538b\u8f6c\u6362\u5668\u7684\u4e3b\u8981\u7279\u70b9\u662f\u6548\u7387\uff0c\u8fd9\u610f\u5473\u7740\u677f\u8f7d\u964d\u538b\u8f6c\u6362\u5668\u53ef\u4ee5\u5ef6\u957f<u>\u7535\u6c60<\/u>\u5bff\u547d\u3001\u51cf\u5c11\u70ed\u91cf\u3001\u51cf\u5c0f\u5c3a\u5bf8\u5e76\u63d0\u9ad8\u6548\u7387\u3002<\/p>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u8bbe\u8ba1\u3001\u8ba1\u7b97\u548c<u>\u6d4b\u8bd5<\/u>\u57fa\u4e8e\u6d41\u884c\u7684TL494 IC\u7684\u9ad8\u6548\u964d\u538b\u8f6c\u6362\u5668<u>\u7535\u8def<\/u>\u3002<\/p>\n<p>\u964d\u538b\u8f6c\u6362\u5668\u5982\u4f55\u5de5\u4f5c\uff1f<\/p>\n<p align=\"center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9344\" title=\"poYBAGL6BjeAXeREAADZlJDLNLo608\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BjeAXeREAADZlJDLNLo608.png\" alt=\"poYBAGL6BjeAXeREAADZlJDLNLo608\" width=\"720\" height=\"271\" srcset=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BjeAXeREAADZlJDLNLo608.png 720w, http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BjeAXeREAADZlJDLNLo608-300x113.png 300w\" sizes=\"(max-width: 720px) 100vw, 720px\" 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http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/pYYBAGL6BjOAEDS4AAEXwk2DccI846-300x142.png 300w\" sizes=\"(max-width: 720px) 100vw, 720px\" \/><\/p>\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230<u>\u4e8c\u6781\u7ba1<\/u>\u5904\u4e8e<u>\u5f00\u8def<\/u>\u72b6\u6001\uff0c\u56e0\u4e3a\u5b83\u5904\u4e8e\u53cd\u5411\u504f\u7f6e\u72b6\u6001\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u4e00\u4e9b\u521d\u59cb<u>\u7535\u6d41<\/u>\u5c06\u5f00\u59cb\u6d41\u8fc7\u8d1f\u8f7d\uff0c\u4f46\u7535\u6d41\u53d7\u5230<u>\u7535\u611f\u5668<\/u>\u7684\u9650\u5236\uff0c\u56e0\u6b64<u>\u7535\u611f<\/u>\u5668\u4e5f\u5f00\u59cb\u9010\u6e10\u5145\u7535\u3002\u56e0\u6b64\uff0c\u5728\u7535\u8def\u5bfc\u901a\u671f\u95f4\uff0c<u>\u7535\u5bb9\u5668<\/u>\u4f1a\u9010\u4e2a\u5468\u671f\u5730\u5efa\u7acb\u5145\u7535\uff0c\u5e76\u4e14\u8be5\u7535\u538b\u4f1a\u53cd\u6620\u5728\u8d1f\u8f7d\u4e0a\u3002<\/p>\n<p>\u6676\u4f53\u7ba1\u5173\u95ed\u72b6\u6001<\/p>\n<p align=\"center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9347\" title=\"poYBAGL6BiyAWurZAAEGU5yLE5I358\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BiyAWurZAAEGU5yLE5I358.png\" alt=\"poYBAGL6BiyAWurZAAEGU5yLE5I358\" width=\"720\" height=\"347\" srcset=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BiyAWurZAAEGU5yLE5I358.png 720w, http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BiyAWurZAAEGU5yLE5I358-300x145.png 300w\" sizes=\"(max-width: 720px) 100vw, 720px\" \/><\/p>\n<p>\u5f53\u6676\u4f53\u7ba1\u5904\u4e8e\u5173\u95ed\u72b6\u6001\u65f6\uff0c\u5b58\u50a8\u5728\u7535\u611f\u5668 L1 \u4e2d\u7684\u80fd\u91cf\u4f1a\u5d29\u6e83\u5e76\u901a\u8fc7\u4e8c\u6781\u7ba1 D1 \u6d41\u56de\uff0c\u5982\u5e26\u7bad\u5934\u7684\u7535\u8def\u6240\u793a\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u7535\u611f\u4e24\u7aef\u7684\u7535\u538b\u6781\u6027\u76f8\u53cd\uff0c\u56e0\u6b64\u4e8c\u6781\u7ba1\u5904\u4e8e\u6b63\u5411\u504f\u7f6e\u72b6\u6001\u3002\u73b0\u5728\uff0c\u7531\u4e8e\u7535\u611f\u5668\u7684\u78c1\u573a\u574d\u584c\uff0c\u7535\u6d41\u7ee7\u7eed\u6d41\u8fc7\u8d1f\u8f7d\uff0c\u76f4\u5230\u7535\u611f\u5668\u7535\u91cf\u8017\u5c3d\u3002\u6240\u6709\u8fd9\u4e9b\u90fd\u53d1\u751f\u5728\u6676\u4f53\u7ba1\u5904\u4e8e\u5173\u95ed\u72b6\u6001\u65f6\u3002<\/p>\n<p>\u5728\u7535\u611f\u51e0\u4e4e\u8017\u5c3d\u5b58\u50a8\u80fd\u91cf\u7684\u4e00\u6bb5\u65f6\u95f4\u540e\uff0c\u8d1f\u8f7d\u7535\u538b\u518d\u6b21\u5f00\u59cb\u4e0b\u964d\uff0c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c<u>\u7535\u5bb9<\/u>\u5668C1\u6210\u4e3a\u4e3b\u8981\u7535\u6d41\u6e90\uff0c\u7535\u5bb9\u5668\u5728\u90a3\u91cc\u4fdd\u6301\u7535\u6d41\u6d41\u52a8\uff0c\u76f4\u5230\u4e0b\u4e00\u4e2a\u5468\u671f\u5f00\u59cb\u518d\u6b21\u3002<\/p>\n<p>\u73b0\u5728\u901a\u8fc7\u6539\u53d8\u5f00\u5173\u9891\u7387\u548c\u5f00\u5173\u65f6\u95f4\uff0c\u6211\u4eec\u53ef\u4ee5\u4ece\u964d\u538b\u8f6c\u6362\u5668\u83b7\u5f97\u4ece 0 \u5230 Vin \u7684\u4efb\u4f55\u8f93\u51fa\u3002<\/p>\n<p><u>\u96c6\u6210\u7535\u8def<\/u>\u00a0TL494<\/p>\n<p>\u73b0\u5728\u5728\u6784\u5efaTL494 \u964d\u538b\u8f6c\u6362\u5668\u4e4b\u524d\uff0c\u8ba9\u6211\u4eec\u5148\u4e86\u89e3\u4e00\u4e0b PWM \u63a7\u5236\u5668 TL494 \u7684\u5de5\u4f5c\u539f\u7406\u3002<\/p>\n<p>TL494 IC \u6709 8 \u4e2a\u529f\u80fd\u5757\uff0c\u5982\u4e0b\u6240\u793a\u548c\u63cf\u8ff0\u3002<\/p>\n<p align=\"center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9346\" title=\"poYBAGL6BiiAMk97AADv4xG7OQA439\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BiiAMk97AADv4xG7OQA439.png\" alt=\"poYBAGL6BiiAMk97AADv4xG7OQA439\" width=\"695\" height=\"418\" srcset=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BiiAMk97AADv4xG7OQA439.png 695w, http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BiiAMk97AADv4xG7OQA439-300x180.png 300w\" sizes=\"(max-width: 695px) 100vw, 695px\" \/><\/p>\n<p>1. 5V \u53c2\u8003\u7a33\u538b\u5668<\/p>\n<p align=\"center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9348\" title=\"pYYBAGL6BiOALXHNAAAeiCtmh0k813\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/pYYBAGL6BiOALXHNAAAeiCtmh0k813.png\" alt=\"pYYBAGL6BiOALXHNAAAeiCtmh0k813\" width=\"496\" height=\"123\" srcset=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/pYYBAGL6BiOALXHNAAAeiCtmh0k813.png 496w, http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/pYYBAGL6BiOALXHNAAAeiCtmh0k813-300x74.png 300w\" sizes=\"(max-width: 496px) 100vw, 496px\" \/><\/p>\n<p>5V \u5185\u90e8\u57fa\u51c6\u7a33\u538b\u5668\u8f93\u51fa\u4e3a REF \u5f15\u811a\uff0c\u5373 IC \u7684\u7b2c 14 \u5f15\u811a\u3002\u53c2\u8003\u7a33\u538b\u5668\u53ef\u4e3a\u8109\u51b2\u8f6c\u5411<u>\u89e6\u53d1\u5668<\/u>\u3001<u>\u632f\u8361\u5668<\/u>\u3001\u6b7b\u533a\u65f6\u95f4\u63a7\u5236<u>\u6bd4\u8f83\u5668<\/u>\u548c PWM \u6bd4\u8f83\u5668\u7b49\u5185\u90e8\u7535\u8def\u63d0\u4f9b\u7a33\u5b9a\u7684<u>\u7535\u6e90<\/u>\u3002\u7a33\u538b\u5668\u8fd8\u7528\u4e8e\u9a71\u52a8\u8d1f\u8d23\u63a7\u5236\u8f93\u51fa\u7684\u8bef\u5dee<u>\u653e\u5927\u5668<\/u>\u3002<\/p>\n<p>\u7b14\u8bb0\uff01\u8be5\u57fa\u51c6\u5728\u5185\u90e8\u7f16\u7a0b\u4e3a \u00b15% \u7684\u521d\u59cb\u7cbe\u5ea6\uff0c\u5e76\u5728 7V \u81f3 40V \u7684\u8f93\u5165\u7535\u538b\u8303\u56f4\u5185\u4fdd\u6301\u7a33\u5b9a\u6027\u3002\u5bf9\u4e8e\u4f4e\u4e8e 7V \u7684\u8f93\u5165\u7535\u538b\uff0c\u7a33\u538b\u5668\u5728\u8f93\u5165\u7684 1V \u8303\u56f4\u5185\u9971\u548c\u5e76\u5bf9\u5176\u8fdb\u884c\u8ddf\u8e2a\u3002<\/p>\n<p>2. \u632f\u8361\u5668<\/p>\n<p align=\"center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9349\" title=\"pYYBAGL6BhyAZdUoAAAf6S9JTAg375\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/pYYBAGL6BhyAZdUoAAAf6S9JTAg375.png\" alt=\"pYYBAGL6BhyAZdUoAAAf6S9JTAg375\" width=\"402\" height=\"106\" srcset=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/pYYBAGL6BhyAZdUoAAAf6S9JTAg375.png 402w, http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/pYYBAGL6BhyAZdUoAAAf6S9JTAg375-300x79.png 300w\" sizes=\"(max-width: 402px) 100vw, 402px\" \/><\/p>\n<p>\u632f\u8361\u5668\u751f\u6210\u952f\u9f7f\u6ce2\u5e76\u5c06\u5176\u63d0\u4f9b\u7ed9\u6b7b\u533a\u65f6\u95f4\u63a7\u5236\u5668\u548c\u7528\u4e8e\u5404\u79cd\u63a7\u5236\u4fe1\u53f7\u7684 PWM \u6bd4\u8f83\u5668\u3002<\/p>\n<p>\u632f\u8361\u5668\u7684\u9891\u7387\u53ef\u4ee5\u901a\u8fc7\u9009\u62e9\u65f6\u5e8f\u7ec4\u4ef6R T \u548c C T\u6765\u8bbe\u7f6e\u3002<\/p>\n<p>\u632f\u8361\u5668\u7684\u9891\u7387\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u516c\u5f0f\u8ba1\u7b97<\/p>\n<p>Fosc = 1\/\uff08RT * CT\uff09<\/p>\n<p>\u4e3a\u7b80\u5355\u8d77\u89c1\uff0c\u6211\u5236\u4f5c\u4e86\u4e00\u4e2a<u>\u7535\u5b50<\/u>\u8868\u683c\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7\u5b83\u5f88\u5bb9\u6613\u5730\u8ba1\u7b97\u9891\u7387\u3002<\/p>\n<p>\u7b14\u8bb0\uff01 \u4ec5\u5bf9\u4e8e\u5355\u7aef\u5e94\u7528\uff0c\u632f\u8361\u5668\u9891\u7387\u7b49\u4e8e\u8f93\u51fa\u9891\u7387\u3002\u5bf9\u4e8e\u63a8\u633d\u5e94\u7528\uff0c\u8f93\u51fa\u9891\u7387\u662f\u632f\u8361\u5668\u9891\u7387\u7684\u4e8c\u5206\u4e4b\u4e00\u3002<\/p>\n<p>3. \u6b7b\u533a\u63a7\u5236\u6bd4\u8f83\u5668<\/p>\n<p align=\"center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9350\" title=\"pYYBAGL6BhiAGrW8AAA9SNq8n5c565\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/pYYBAGL6BhiAGrW8AAA9SNq8n5c565.png\" alt=\"pYYBAGL6BhiAGrW8AAA9SNq8n5c565\" width=\"408\" height=\"117\" srcset=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/pYYBAGL6BhiAGrW8AAA9SNq8n5c565.png 408w, http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/pYYBAGL6BhiAGrW8AAA9SNq8n5c565-300x86.png 300w\" sizes=\"(max-width: 408px) 100vw, 408px\" \/><\/p>\n<p>\u6b7b\u533a\u65f6\u95f4\u6216\u7b80\u5355\u5730\u8bf4\u5173\u65ad\u65f6\u95f4\u63a7\u5236\u63d0\u4f9b\u6700\u5c0f\u6b7b\u533a\u65f6\u95f4\u6216\u5173\u65ad\u65f6\u95f4\u3002\u5f53\u8f93\u5165\u7535\u538b\u5927\u4e8e\u632f\u8361\u5668\u7684\u659c\u5761\u7535\u538b\u65f6\uff0c\u6b7b\u533a\u65f6\u95f4\u6bd4\u8f83\u5668\u7684\u8f93\u51fa\u4f1a\u963b\u585e\u5f00\u5173\u6676\u4f53\u7ba1\u3002\u5411DTC\u5f15\u811a\u65bd\u52a0\u7535\u538b\u4f1a\u4ea7\u751f\u989d\u5916\u7684\u6b7b\u533a\u65f6\u95f4\uff0c\u4ece\u800c\u5728\u8f93\u5165\u7535\u538b\u4ece 0 \u5230 3V \u53d8\u5316\u65f6\u63d0\u4f9b\u4ece\u6700\u5c0f\u503c 3% \u5230 100% \u7684\u989d\u5916\u6b7b\u533a\u65f6\u95f4\u3002\u7b80\u5355\u6765\u8bf4\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u4e0d\u8c03\u6574\u8bef\u5dee\u653e\u5927\u5668\u7684\u60c5\u51b5\u4e0b\u6539\u53d8\u8f93\u51fa\u6ce2\u7684\u5360\u7a7a\u6bd4\u3002<\/p>\n<p>\u7b14\u8bb0\uff01110 mV \u7684\u5185\u90e8\u504f\u79fb\u53ef\u786e\u4fdd\u6b7b\u533a\u65f6\u95f4\u63a7\u5236\u8f93\u5165\u63a5\u5730\u65f6\u7684\u6700\u5c0f\u6b7b\u533a\u65f6\u95f4\u4e3a 3%\u3002<\/p>\n<p>4. \u8bef\u5dee\u653e\u5927\u5668<\/p>\n<p align=\"center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9352\" title=\"poYBAGL6BhSAS_JsAABv9wKJhRo028\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BhSAS_JsAABv9wKJhRo028.png\" alt=\"poYBAGL6BhSAS_JsAABv9wKJhRo028\" width=\"369\" height=\"261\" srcset=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BhSAS_JsAABv9wKJhRo028.png 369w, http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BhSAS_JsAABv9wKJhRo028-300x212.png 300w\" sizes=\"(max-width: 369px) 100vw, 369px\" \/><\/p>\n<p>\u4e24\u4e2a\u9ad8\u589e\u76ca\u8bef\u5dee\u653e\u5927\u5668\u90fd\u4ece VI \u7535\u6e90\u8f68\u63a5\u6536\u504f\u7f6e\u3002\u8fd9\u5141\u8bb8\u5171\u6a21\u8f93\u5165\u7535\u538b\u8303\u56f4\u4e3a \u20130.3 V \u81f3 2 V\uff0c\u4f4e\u4e8e VI\u3002\u4e24\u4e2a\u653e\u5927\u5668\u90fd\u5177\u6709\u5355\u7aef\u5355\u7535\u6e90\u653e\u5927\u5668\u7684\u7279\u6027\uff0c\u56e0\u4e3a\u6bcf\u4e2a\u8f93\u51fa\u4ec5\u9ad8\u7535\u5e73\u6709\u6548\u3002<\/p>\n<p>5. \u8f93\u51fa\u63a7\u5236\u8f93\u5165<\/p>\n<p align=\"center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9353\" title=\"poYBAGL6BhGAatIwAABUuxTIs0M494\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BhGAatIwAABUuxTIs0M494.png\" alt=\"poYBAGL6BhGAatIwAABUuxTIs0M494\" width=\"385\" height=\"301\" srcset=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BhGAatIwAABUuxTIs0M494.png 385w, http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BhGAatIwAABUuxTIs0M494-300x235.png 300w\" sizes=\"(max-width: 385px) 100vw, 385px\" \/><\/p>\n<p>\u8f93\u51fa\u63a7\u5236\u8f93\u5165\u51b3\u5b9a\u4e86\u8f93\u51fa\u6676\u4f53\u7ba1\u662f\u4ee5\u5e76\u8054\u6a21\u5f0f\u8fd8\u662f\u63a8\u633d\u6a21\u5f0f\u5de5\u4f5c\u3002\u901a\u8fc7\u5c06\u5f15\u811a 13 \u7684\u8f93\u51fa\u63a7\u5236\u5f15\u811a\u8fde\u63a5\u5230\u5730\uff0c\u53ef\u5c06\u8f93\u51fa\u6676\u4f53\u7ba1\u8bbe\u7f6e\u4e3a\u5e76\u8054\u5de5\u4f5c\u6a21\u5f0f\u3002\u4f46\u662f\u901a\u8fc7\u5c06\u6b64\u5f15\u811a\u8fde\u63a5\u5230 5V-REF \u5f15\u811a\uff0c\u53ef\u4ee5\u5c06\u8f93\u51fa\u6676\u4f53\u7ba1\u8bbe\u7f6e\u4e3a\u63a8\u633d\u6a21\u5f0f\u3002<\/p>\n<p>6. \u8f93\u51fa\u6676\u4f53\u7ba1<\/p>\n<div class=\"post-image\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9351\" title=\"pYYBAGL6Bg2AWplNAAAoKuneXGk188\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/pYYBAGL6Bg2AWplNAAAoKuneXGk188.png\" alt=\"pYYBAGL6Bg2AWplNAAAoKuneXGk188\" width=\"190\" height=\"224\" \/><\/div>\n<p>\u8be5 IC \u6709\u4e24\u4e2a\u5185\u90e8\u8f93\u51fa\u6676\u4f53\u7ba1\uff0c\u5b83\u4eec\u91c7\u7528\u96c6\u7535\u6781\u5f00\u8def\u548c\u53d1\u5c04\u6781\u5f00\u8def\u914d\u7f6e\uff0c\u53ef\u63d0\u4f9b\u6216\u5438\u6536\u9ad8\u8fbe 200mA \u7684\u6700\u5927\u7535\u6d41\u3002<\/p>\n<p>\u7b14\u8bb0\uff01\u6676\u4f53\u7ba1\u7684\u9971\u548c\u7535\u538b\u5728\u5171\u5c04\u6781\u914d\u7f6e\u4e2d\u5c0f\u4e8e 1.3 V\uff0c\u5728\u5c04\u6781\u8ddf\u968f\u5668\u914d\u7f6e\u4e2d\u5c0f\u4e8e 2.5 V\u3002<\/p>\n<p>TL494 IC\u7684\u7279\u70b9<\/p>\n<p>\u5b8c\u6574\u7684 PWM \u529f\u7387\u63a7\u5236\u7535\u8def<\/p>\n<p>\u7528\u4e8e 200mA \u704c\u7535\u6d41\u6216\u62c9\u7535\u6d41\u7684\u672a\u63d0\u4ea4\u8f93\u51fa<\/p>\n<p>\u8f93\u51fa\u63a7\u5236\u9009\u62e9\u5355\u7aef\u6216\u63a8\u633d\u64cd\u4f5c<\/p>\n<p>\u5185\u90e8\u7535\u8def\u7981\u6b62\u5728\u4efb\u4e00\u8f93\u51fa\u7aef\u51fa\u73b0\u53cc\u8109\u51b2<\/p>\n<p>\u53ef\u53d8\u6b7b\u533a\u65f6\u95f4\u63d0\u4f9b\u5bf9\u603b\u8303\u56f4\u7684\u63a7\u5236<\/p>\n<p>\u5185\u90e8\u7a33\u538b\u5668\u63d0\u4f9b\u7a33\u5b9a\u7684 5V<\/p>\n<p>\u5bb9\u5dee\u4e3a 5% \u7684\u53c2\u8003\u7535\u6e90<\/p>\n<p>\u7535\u8def\u67b6\u6784\u5141\u8bb8\u8f7b\u677e\u540c\u6b65<\/p>\n<p>\u7b14\u8bb0\uff01\u5927\u90e8\u5206\u5185\u90e8\u539f\u7406\u56fe\u548c\u64cd\u4f5c\u8bf4\u660e\u5747\u53d6\u81ea\u6570\u636e\u8868\uff0c\u5e76\u8fdb\u884c\u4e86\u4e00\u5b9a\u7a0b\u5ea6\u7684\u4fee\u6539\u4ee5\u4fbf\u66f4\u597d\u5730\u7406\u89e3\u3002<\/p>\n<p>\u6240\u9700\u7ec4\u4ef6<\/p>\n<p>TL494 \u96c6\u6210\u7535\u8def - 1<\/p>\n<p><u><\/u><u>TI<\/u>P2955 \u6676\u4f53\u7ba1 - 1<\/p>\n<p><u>\u87ba\u4e1d\u7aef\u5b50<\/u>\u00a05mmx2 - 2<\/p>\n<p>1000uF\uff0c60V \u7535\u5bb9 - 1<\/p>\n<p>470uF\uff0c60V \u7535\u5bb9 - 1<\/p>\n<p>50K\uff0c1%\u00a0<u>\u7535\u963b<\/u>\u00a0- 1<\/p>\n<p>560R\u00a0<u>\u7535\u963b\u5668<\/u>\u00a0- 1<\/p>\n<p>10K\uff0c1% \u7535\u963b - 4<\/p>\n<p>3.3K\uff0c1% \u7535\u963b - 2<\/p>\n<p>330R \u7535\u963b\u5668 - 1<\/p>\n<p>0.22uF \u7535\u5bb9 - 1<\/p>\n<p>5.6K\uff0c1W\u7535\u963b - 1<\/p>\n<p>12.1V \u7a33\u538b\u4e8c\u6781\u7ba1 - 1<\/p>\n<p>MBR20100CT \u8096\u7279\u57fa\u4e8c\u6781\u7ba1 - 1<\/p>\n<p>70uH \uff0827 x 11 x 14 \uff09 \u6beb\u7c73\u7535\u611f\u5668 - 1<\/p>\n<p><u>\u7535\u4f4d\u5668<\/u>\u00a0\uff0810K\uff09\u00a0<u>\u5fae\u8c03\u7535\u4f4d\u5668<\/u>\u00a0- 1<\/p>\n<p>0.22R \u7535\u6d41\u68c0\u6d4b\u7535\u963b - 2<\/p>\n<p>\u590d\u5408\u677f\u901a\u7528 50x 50mm - 1<\/p>\n<p>PSU \u6563\u70ed\u5668\u901a\u7528 - 1<\/p>\n<p>\u901a\u7528<u>\u8df3\u7ebf<\/u>\u00a0- 15<\/p>\n<p>\u539f\u7406\u56fe\uff0c\u793a\u610f\u56fe<\/p>\n<p>\u9ad8\u6548\u964d\u538b\u8f6c\u6362\u5668\u7684\u7535\u8def\u56fe\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<p align=\"center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9354\" title=\"poYBAGL6BgOAJ6vRAADDjfzSRlU735\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BgOAJ6vRAADDjfzSRlU735.png\" alt=\"poYBAGL6BgOAJ6vRAADDjfzSRlU735\" width=\"720\" height=\"268\" srcset=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BgOAJ6vRAADDjfzSRlU735.png 720w, http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BgOAJ6vRAADDjfzSRlU735-300x112.png 300w\" sizes=\"(max-width: 720px) 100vw, 720px\" \/><\/p>\n<p>\u7535\u8def\u7ed3\u6784<\/p>\n<p>\u5bf9\u4e8e\u8fd9\u4e2a\u5927\u7535\u6d41\u964d\u538b\u8f6c\u6362\u5668\u7684\u6f14\u793a\uff0c\u7535\u8def\u662f\u7528\u624b\u5de5\u5236\u4f5c\u7684\u00a0<u>PCB<\/u>\u6784\u5efa\u7684\uff0c\u5e76\u501f\u52a9\u539f\u7406\u56fe\u548c PCB \u8bbe\u8ba1\u6587\u4ef6 \uff3b\u00a0<u>Gerber<\/u>\u00a0\u6587\u4ef6\uff3d\uff1b\u8bf7\u6ce8\u610f\uff0c\u5982\u679c\u60a8\u5c06\u5927\u8d1f\u8f7d\u8fde\u63a5\u5230\u8f93\u51fa\u964d\u538b\u8f6c\u6362\u5668\uff0c\u5219\u5927\u91cf\u7535\u6d41\u5c06\u6d41\u8fc7 PCB \u8d70\u7ebf\uff0c\u5e76\u4e14\u6709\u53ef\u80fd\u4f1a\u70e7\u574f\u8d70\u7ebf\u3002\u56e0\u6b64\uff0c\u4e3a\u4e86\u9632\u6b62 PCB \u8d70\u7ebf\u70e7\u574f\uff0c\u6211\u6dfb\u52a0\u4e86\u4e00\u4e9b\u6709\u52a9\u4e8e\u589e\u52a0\u7535\u6d41\u7684\u8df3\u7ebf\u3002\u53e6\u5916\uff0c\u6211\u7528\u539a\u539a\u7684\u710a\u6599\u5c42\u52a0\u56fa\u4e86 PCB \u8d70\u7ebf\uff0c\u4ee5\u964d\u4f4e\u8d70\u7ebf\u7535\u963b\u3002<\/p>\n<p align=\"center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9357\" title=\"pYYBAGL6Bf-ADoGQAAbqmfoSU5Q121\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/pYYBAGL6Bf-ADoGQAAbqmfoSU5Q121.png\" alt=\"pYYBAGL6Bf-ADoGQAAbqmfoSU5Q121\" width=\"720\" height=\"488\" srcset=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/pYYBAGL6Bf-ADoGQAAbqmfoSU5Q121.png 720w, http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/pYYBAGL6Bf-ADoGQAAbqmfoSU5Q121-300x203.png 300w\" sizes=\"(max-width: 720px) 100vw, 720px\" \/><\/p>\n<p>\u7535\u611f\u5668\u7531 3 \u80a1\u5e73\u884c\u7684 0.45 \u5e73\u65b9\u6beb\u7c73\u6f06\u5305\u94dc\u7ebf\u6784\u6210\u3002<\/p>\n<p>\u8ba1\u7b97<\/p>\n<p>\u4e3a\u4e86\u6b63\u786e\u8ba1\u7b97\u7535\u611f\u5668\u548c\u7535\u5bb9\u5668\u7684\u503c\uff0c\u6211\u4f7f\u7528\u4e86\u00a0<u>te<\/u>xas Instruments \u7684\u6587\u6863\u3002<\/p>\n<p align=\"center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9355\" title=\"poYBAGL6BfuADq9fAAFf2v-GrGI386\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BfuADq9fAAFf2v-GrGI386.png\" alt=\"poYBAGL6BfuADq9fAAFf2v-GrGI386\" width=\"639\" height=\"306\" srcset=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BfuADq9fAAFf2v-GrGI386.png 639w, http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BfuADq9fAAFf2v-GrGI386-300x144.png 300w\" sizes=\"(max-width: 639px) 100vw, 639px\" \/><\/p>\n<p>\u6d4b\u8bd5\u8fd9\u4e2a\u9ad8\u538b\u964d\u538b\u8f6c\u6362\u5668<\/p>\n<p align=\"center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9356\" title=\"poYBAGL6BfiAN7FpAAhdAo5GkBA384\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BfiAN7FpAAhdAo5GkBA384.png\" alt=\"poYBAGL6BfiAN7FpAAhdAo5GkBA384\" width=\"720\" height=\"471\" srcset=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BfiAN7FpAAhdAo5GkBA384.png 720w, http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BfiAN7FpAAhdAo5GkBA384-300x196.png 300w\" sizes=\"(max-width: 720px) 100vw, 720px\" \/><\/p>\n<p>\u4e3a\u4e86\u6d4b\u8bd5\u7535\u8def\uff0c\u4f7f\u7528\u4e86\u4ee5\u4e0b\u8bbe\u7f6e\u3002\u5982\u4e0a\u56fe\u6240\u793a\uff0c\u8f93\u5165\u7535\u538b\u4e3a 41.17 V\uff0c\u7a7a\u8f7d\u7535\u6d41\u4e3a 0.015 A\uff0c\u8fd9\u4f7f\u5f97\u7a7a\u8f7d\u529f\u8017\u5c0f\u4e8e 0.6W\u3002<\/p>\n<p>\u5728\u4f60\u4eec\u4e2d\u7684\u4efb\u4f55\u4eba\u8df3\u8d77\u6765\u8bf4\u51fa\u6211\u7684\u6d4b\u8bd5\u53f0\u4e0a\u7684\u4e00\u7897\u7535\u963b\u5668\u5728\u505a\u4ec0\u4e48\u4e4b\u524d\u3002<\/p>\n<p>\u544a\u8bc9\u4f60\uff0c\u6ee1\u8f7d\u6d4b\u8bd5\u7535\u8def\u7684\u65f6\u5019\u7535\u963b\u4f1a\u5f88\u70eb\uff0c\u6240\u4ee5\u6211\u51c6\u5907\u4e86\u4e00\u7897\u6c34\u9632\u6b62\u6211\u7684\u5de5\u4f5c\u53f0\u70e7\u574f<\/p>\n<p>\u7528\u4e8e\u6d4b\u8bd5\u7535\u8def\u7684\u5de5\u5177<\/p>\n<p>12V\u94c5\u9178\u7535\u6c60\u3002<\/p>\n<p>\u5177\u6709 6-0-6 \u62bd\u5934\u548c 12-0-12 \u62bd\u5934\u7684<u>\u53d8\u538b\u5668<\/u><\/p>\n<p>5 10W 10r \u7535\u963b\u5e76\u8054\u4f5c\u4e3a\u8d1f\u8f7d<\/p>\n<p>Meco 108B+TRMS\u00a0<u>\u4e07\u7528\u8868<\/u><\/p>\n<p>Meco 450B+TRMS \u4e07\u7528\u8868<\/p>\n<p>\u6c49<u>\u6cf0\u514b<\/u>\u00a06022BE\u00a0<u>\u793a\u6ce2\u5668<\/u><\/p>\n<p>\u5927\u529f\u7387\u964d\u538b\u8f6c\u6362\u5668\u7684\u8f93\u5165\u7535\u6e90<\/p>\n<p align=\"center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9360\" title=\"pYYBAGL6BfKAayiyAAd0Vlh0U-Q013\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/pYYBAGL6BfKAayiyAAd0Vlh0U-Q013.png\" alt=\"pYYBAGL6BfKAayiyAAd0Vlh0U-Q013\" width=\"720\" height=\"454\" srcset=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/pYYBAGL6BfKAayiyAAd0Vlh0U-Q013.png 720w, http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/pYYBAGL6BfKAayiyAAd0Vlh0U-Q013-300x189.png 300w\" sizes=\"(max-width: 720px) 100vw, 720px\" \/><\/p>\n<p>\u4ece\u4e0a\u56fe\u53ef\u4ee5\u770b\u51fa\uff0c\u8d1f\u8f7d\u6761\u4ef6\u4e0b\u8f93\u5165\u7535\u538b\u964d\u81f327.45V\uff0c\u8f93\u5165\u7535\u6d41\u4e3a3.022 A\uff0c\u76f8\u5f53\u4e8e\u8f93\u5165\u529f\u7387\u4e3a82.9539 W\u3002<\/p>\n<p>\u8f93\u51fa\u529f\u7387<\/p>\n<p align=\"center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9359\" title=\"poYBAGL6Be6AQFrKAAiosFknDO4339\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6Be6AQFrKAAiosFknDO4339.png\" alt=\"poYBAGL6Be6AQFrKAAiosFknDO4339\" width=\"720\" height=\"472\" srcset=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6Be6AQFrKAAiosFknDO4339.png 720w, http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6Be6AQFrKAAiosFknDO4339-300x197.png 300w\" sizes=\"(max-width: 720px) 100vw, 720px\" \/><\/p>\n<p>\u4ece\u4e0a\u56fe\u4e2d\u53ef\u4ee5\u770b\u51fa\uff0c\u8f93\u51fa\u7535\u538b\u4e3a 12.78V\uff0c\u8f93\u51fa\u7535\u6d41\u4e3a 5.614A\uff0c\u76f8\u5f53\u4e8e 71.6958 W \u7684\u529f\u8017\u3002<\/p>\n<p>\u56e0\u6b64\u7535\u8def\u7684\u6548\u7387\u53d8\u4e3a\uff0871.6958 \/ 82.9539\uff09 x 100 % = 86.42 %<\/p>\n<p>\u7535\u8def\u4e2d\u7684\u635f\u8017\u662f\u7531\u4e8e\u4e3a TL494 IC \u4f9b\u7535\u7684\u7535\u963b\u5668\u548c<\/p>\n<p>\u6211\u7684\u6d4b\u8bd5\u8868\u4e2d\u7684\u7edd\u5bf9\u6700\u5927\u7535\u6d41\u6d88\u8017<\/p>\n<p align=\"center\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-9358\" title=\"poYBAGL6BemAMV6lAAghtNxQ47U733\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BemAMV6lAAghtNxQ47U733.png\" alt=\"poYBAGL6BemAMV6lAAghtNxQ47U733\" width=\"720\" height=\"439\" srcset=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BemAMV6lAAghtNxQ47U733.png 720w, http:\/\/www.szryc.com\/wp-content\/uploads\/2022\/08\/poYBAGL6BemAMV6lAAghtNxQ47U733-300x183.png 300w\" sizes=\"(max-width: 720px) 100vw, 720px\" \/><\/p>\n<p>\u4ece\u4e0a\u56fe\u53ef\u4ee5\u770b\u51fa\uff0c\u7535\u8def\u7684\u6700\u5927\u7535\u6d41\u6d88\u8017\u4e3a 6.96 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