{"id":13902,"date":"2023-11-19T20:57:48","date_gmt":"2023-11-19T12:57:48","guid":{"rendered":"http:\/\/www.szryc.com\/?p=13902"},"modified":"2023-11-19T20:57:48","modified_gmt":"2023-11-19T12:57:48","slug":"lm339-%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86%ef%bc%8c%e5%bc%95%e8%84%9a%e5%9b%be%e5%8f%8a%e5%8a%9f%e8%83%bd%e8%af%b4%e6%98%8e","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=13902","title":{"rendered":"LM339 \u5de5\u4f5c\u539f\u7406\uff0c\u5f15\u811a\u56fe\u53ca\u529f\u80fd\u8bf4\u660e"},"content":{"rendered":"<p data-pid=\"aMbpUeiU\">\u4eca\u5929\u662f\u00a0<b>LM339<\/b>\u00a0\uff0c\u4e3b\u8981\u662f\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n<ul>\n<li data-pid=\"H5EIQxhe\">1\u3001LM339 \u662f\u4ec0\u4e48\u82af\u7247\uff1f<\/li>\n<li data-pid=\"tIxoqYUq\">2\u3001LM339\u5f15\u811a\u56fe\u53ca\u529f\u80fd<\/li>\n<li data-pid=\"9Xnc0wmM\">3\u3001LM339 \u5c01\u88c5<\/li>\n<li data-pid=\"9cb1hta_\">4\u3001LM339 \u5de5\u4f5c\u539f\u7406<\/li>\n<li data-pid=\"aZXz7G8j\">5\u3001LM339 \u7279\u6027\u53c2\u6570<\/li>\n<li data-pid=\"5UpC04QY\">6\u3001LM339\u7684\u7b49\u6548\u578b\u53f7<\/li>\n<li data-pid=\"AhxXqV7L\">7\u3001LM339 \u7535\u8def\u56fe\uff08\u6bd4\u8f83\u5668\u3001\u9a71\u52a8 CMOS \u3001\u6389\u4f4e\u9891\u8fd0\u7b97\u65b9\u6cd5\u5668\u3001\u4f20\u611f\u5668\u653e\u5927\u5668\u3001\u8fc7\u96f6\u68c0\u6d4b\u5668\u3001\u7535\u6c60\u7535\u538b\u76d1\u63a7\u5668\u3001LED \u7535\u538b\u76d1\u63a7\u5668\u3001\u56db\u7535\u538b\u6bd4\u8f83\u5668\u3001\u632f\u8361\u5668\uff09<\/li>\n<li data-pid=\"OltG0IjK\">8\u3001LM339 \u529f\u80fd<\/li>\n<\/ul>\n<h2 id=\"h_566600533_0\" data-into-catalog-status=\"\">\u4e00\u3001LM339 \u662f\u4ec0\u4e48\u82af\u7247\uff1f<\/h2>\n<p data-pid=\"-YI-CuT4\"><b>LM339<\/b>\u00a0\u662f\u4e00\u6b3e<b>\u7535\u538b\u6bd4\u8f83\u5668<\/b>\uff0c\u7531\u00a0<b>14 \u4e2a\u5f15\u811a<\/b>\u548c\u00a0<b>4 \u4e2a\u72ec\u7acb\u7684\u7535\u538b\u6bd4\u8f83\u5668<\/b>\u7ec4\u6210\uff0c\u6bd4\u8f83\u5728\u8f93\u5165\u7aef\u5e94\u7528\u7684\u4e24\u4e2a\u8f93\u5165\uff0c\u5e76\u4ee5\u6570\u5b57\u5f62\u5f0f\u663e\u793a\u8f93\u51fa\u3002<\/p>\n<p data-pid=\"-t83RNjd\">\u6709\u4eba\u95ee\uff1aLM339 \u662f\u53cc\u7535\u6e90\u4f9b\u7535\u5417\uff1f<\/p>\n<p data-pid=\"Qusb08uw\"><b>LM339 \u53ef\u4ee5\u4f7f\u7528\u53cc\u7535\u6e90\u5de5\u4f5c<\/b>\uff0c\u4f46\u4e24\u4e2a\u7535\u6e90\u4e4b\u95f4\u7684\u7535\u538b\u5dee\u5fc5\u987b\u5728 2 V \u81f3 36 V \u4e4b\u95f4\u3002<\/p>\n<figure data-size=\"normal\">\n<div><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13913\" title=\"v2-60601d1cb924f24c6a1e8680cdd85379_720w.webp\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2023\/11\/v2-60601d1cb924f24c6a1e8680cdd85379_720w.webp.jpg\" alt=\"v2-60601d1cb924f24c6a1e8680cdd85379_720w.webp\" width=\"440\" height=\"252\" \/><\/div><figcaption>LM339 \u5b9e\u7269\u56fe<\/figcaption><\/figure>\n<h2 id=\"h_566600533_1\" data-into-catalog-status=\"\">\u4e8c\u3001LM339 \u5f15\u811a\u56fe\u53ca\u529f\u80fd<\/h2>\n<p data-pid=\"u9m_bC8F\"><b>LM339<\/b>\u00a0\u6bd4\u8f83\u5668 IC \u7531 4\u00a0<b>\u4e2a\u5185\u7f6e\u7684\u72ec\u7acb\u7535\u538b\u6bd4\u8f83\u5668<\/b>\u7ec4\u6210\uff0c\u4e0b\u56fe\u4e3a\u00a0<b>LM339 \u7ba1\u811a\u56fe<\/b>\uff1a<\/p>\n<figure data-size=\"small\">\n<div><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13924\" title=\"v2-833a3f66e5e5476d9bd872a205916463_720w.webp\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2023\/11\/v2-833a3f66e5e5476d9bd872a205916463_720w.webp.jpg\" alt=\"v2-833a3f66e5e5476d9bd872a205916463_720w.webp\" width=\"682\" height=\"640\" \/><\/div><figcaption>LM339 \u7ba1\u811a\u56fe\u53ca\u539f\u7406\u56fe<\/figcaption><\/figure>\n<p data-pid=\"2P6OGOrW\"><b>\u6bd4\u8f83\u5668 1\u30012\u30013 \u3001 4<\/b>\u00a0\uff1a<b>\u6b63\u8f93\u5165<\/b>\u8fde\u63a5\u5230\u00a0<b>IC \u5f15\u811a 3<\/b>\u00a0\uff0c\u00a0<b>\u8d1f\u8f93\u5165<\/b>\u00a0\u8fde\u63a5\u5230\u00a0<b>IC \u5f15\u811a 12<\/b>\u3002<\/p>\n<p data-pid=\"fiHYb2KB\"><b>\u6bd4\u8f83\u5668 1<\/b>\u00a0\uff1a<b>\u53cd\u76f8\u8f93\u5165<\/b>\u8fde\u63a5\u5230\u00a0<b>IC \u5f15\u811a 4<\/b>\u00a0\uff0c<b>\u975e\u53cd\u76f8\u8f93\u5165<\/b>\u8fde\u63a5\u5230\u00a0<b>IC \u5f15\u811a 5<\/b>\uff0c<b>\u8f93\u51fa<\/b>\u8fde\u63a5\u5230\u00a0<b>IC \u5f15\u811a 2<\/b>\u3002<\/p>\n<p data-pid=\"r6Oqgy_s\"><b>\u6bd4\u8f83\u5668 2<\/b>\u00a0<b>\uff1a\u53cd\u76f8\u8f93\u5165<\/b>\u8fde\u63a5\u5230 IC\u00a0<b>\u5f15\u811a 6<\/b>\u00a0\uff0c<b>\u975e\u53cd\u76f8\u8f93\u5165<\/b>\u8fde\u63a5\u5230\u00a0<b>IC \u5f15\u811a 7<\/b>\uff0c\u8f93\u51fa\u8fde\u63a5\u5230\u00a0<b>IC \u5f15\u811a 1<\/b>\u3002<\/p>\n<p data-pid=\"vSthqpFZ\"><b>\u6bd4\u8f83\u5668 3<\/b>\u00a0\uff1a<b>\u53cd\u76f8\u8f93\u5165<\/b>\u8fde\u63a5\u5230\u00a0<b>IC \u5f15\u811a 8<\/b>\u00a0\uff0c<b>\u975e\u53cd\u76f8\u8f93\u5165<\/b>\u8fde\u63a5\u5230\u00a0<b>IC \u5f15\u811a 9<\/b>\uff0c\u8f93\u51fa\u8fde\u63a5\u5230\u00a0<b>IC \u5f15\u811a14<\/b>\u3002<\/p>\n<p data-pid=\"07BAM9Ca\"><b>\u6bd4\u8f83\u5668 4<\/b>\u00a0<b>\uff1a\u53cd\u76f8\u8f93\u5165<\/b>\u8fde\u63a5\u5230\u00a0<b>IC \u5f15\u811a 10<\/b>\u00a0\uff0c<b>\u975e\u53cd\u76f8\u8f93\u5165<\/b>\u8fde\u63a5\u5230\u00a0<b>IC \u5f15\u811a 11<\/b>\uff0c\u8f93\u51fa\u8fde\u63a5\u5230\u00a0<b>IC \u5f15\u811a13<\/b>\u3002<\/p>\n<figure data-size=\"normal\">\n<div><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13904\" title=\"v2-452cdde772208c3ac8a981a89fd5c278_720w.webp\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2023\/11\/v2-452cdde772208c3ac8a981a89fd5c278_720w.webp.jpg\" alt=\"v2-452cdde772208c3ac8a981a89fd5c278_720w.webp\" width=\"720\" height=\"272\" \/><\/div><figcaption>LM339 \u5f15\u811a\u56fe<\/figcaption><\/figure>\n<p data-pid=\"MIKPCQCX\">\u4e0b\u56fe\u4e3a\u00a0<b>LM 339 \u5f15\u811a\u56fe\u53ca\u529f\u80fd\u8bf4\u660e\u56fe<\/b>\uff1a<\/p>\n<figure data-size=\"small\">\n<div><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13905\" title=\"v2-0601512f98ee5afc9626f7ffdc374755_720w.webp\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2023\/11\/v2-0601512f98ee5afc9626f7ffdc374755_720w.webp.jpg\" alt=\"v2-0601512f98ee5afc9626f7ffdc374755_720w.webp\" width=\"690\" height=\"825\" \/><\/div><figcaption>LM 339 \u5f15\u811a\u56fe\u53ca\u529f\u80fd\u8bf4\u660e\u56fe<\/figcaption><\/figure>\n<h2 id=\"h_566600533_2\" data-into-catalog-status=\"\">\u4e09\u3001LM339 \u5c01\u88c5<\/h2>\n<p data-pid=\"7TKOi5od\">LM339 IC \u4e3b\u8981\u6709\u4ee5\u4e0b 3 \u79cd\u5c01\u88c5\uff1a<\/p>\n<ul>\n<li data-pid=\"v5zjqojN\">TSSOP-14 \u5c01\u88c5<\/li>\n<li data-pid=\"a76etKGS\">PDIP-14 \u5c01\u88c5<\/li>\n<li data-pid=\"YtvlENzc\">SOIC-14 \u5c01\u88c5<\/li>\n<\/ul>\n<h3 id=\"h_566600533_3\" data-into-catalog-status=\"\"><b>1\u3001TSSOP-14 \u5c01\u88c5 ( LM339DTBR2G )<\/b><\/h3>\n<figure data-size=\"normal\">\n<div><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13906\" title=\"v2-60abe3a292051a41e26532580c5bf516_720w.webp\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2023\/11\/v2-60abe3a292051a41e26532580c5bf516_720w.webp.jpg\" alt=\"v2-60abe3a292051a41e26532580c5bf516_720w.webp\" width=\"634\" height=\"278\" \/><\/div><figcaption>TSSOP-14 \u5c01\u88c5<\/figcaption><\/figure>\n<h3 id=\"h_566600533_4\" data-into-catalog-status=\"\"><b>2\u3001PDIP-14 \u5c01\u88c5 ( LM339NG )<\/b><\/h3>\n<figure data-size=\"normal\">\n<div><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13908\" title=\"v2-be48d7473feb0facdb9f5973532a7bd5_720w.webp\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2023\/11\/v2-be48d7473feb0facdb9f5973532a7bd5_720w.webp.jpg\" alt=\"v2-be48d7473feb0facdb9f5973532a7bd5_720w.webp\" width=\"490\" height=\"280\" \/><\/div><figcaption>PDIP-14 \u5c01\u88c5<\/figcaption><\/figure>\n<h3 id=\"h_566600533_5\" data-into-catalog-status=\"\"><b>3\u3001SOIC-14 \u5c01\u88c5 ( LM339DG )<\/b><\/h3>\n<figure data-size=\"normal\">\n<div><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13907\" title=\"v2-a61b785f5ae8de1156a01b3dd070aa41_720w.webp\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2023\/11\/v2-a61b785f5ae8de1156a01b3dd070aa41_720w.webp.jpg\" alt=\"v2-a61b785f5ae8de1156a01b3dd070aa41_720w.webp\" width=\"508\" height=\"218\" \/><\/div><figcaption>SOIC-14 \u5c01\u88c5<\/figcaption><\/figure>\n<h2 id=\"h_566600533_6\" data-into-catalog-status=\"\">\u56db\u3001LM339 \u5de5\u4f5c\u539f\u7406<\/h2>\n<p data-pid=\"4WhFv5Se\"><b>LM339 \u5de5\u4f5c\u539f\u7406\u4e0e\u5176\u4ed6\u6bd4\u8f83\u5668 IC \u7c7b\u4f3c\uff0c\u8be5 IC \u6bcf\u4e2a\u6bd4\u8f83\u5668\u90fd\u6709 3 \u4e2a\u5f15\u811a\uff0c\u4e3b\u8981\u662f\uff1a\u53cd\u76f8 (-IN)\u3001\u540c\u76f8 (+IN) \u548c\u8f93\u51fa\u3002<\/b><\/p>\n<p data-pid=\"6w923iKg\">\u73b0\u5728\u4f7f\u7528\u5176\u4e2d\u4e00\u4e2a\u6bd4\u8f83\u5668\u6765\u4e86\u89e3 LM339 \u5de5\u4f5c\u539f\u7406\u3002<\/p>\n<p data-pid=\"chsCqL4d\">\u8fd9\u91cc\u53d6\u4e24\u4e2a\u8f93\u5165\u7535\u538b\uff0c\u5b83\u4eec\u662f\u7535\u538b\u00a0<b>V1<\/b>\u00a0\u548c\u00a0<b>V2<\/b>\u00a0\u3002\u73b0\u5728\u901a\u8fc7\u6bd4\u8f83\u5668\u6bd4\u8f83\u8fd9\u4e9b\u7535\u538b\uff0c\u5e76\u63d0\u4f9b\u8f93\u51fa\u4e3a\u00a0<b>Vo<\/b>\u3002\u7535\u538b\u00a0<b>V1<\/b>\u00a0\u8fde\u63a5\u5230\u6bd4\u8f83\u5668\u7684<b>\u540c\u76f8 (+IN) \u8f93\u5165<\/b>\uff08\u5f15\u811a 5\uff09\uff0c\u7535\u538b\u00a0<b>V2<\/b>\u00a0\u8fde\u63a5\u5230<b>\u53cd\u76f8 (-IN) \u8f93\u5165<\/b>\uff08\u5f15\u811a 4\uff09\u3002<\/p>\n<figure data-size=\"normal\">\n<div><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13909\" title=\"v2-63b571cfffbb35c6aab4bf393294dd22_720w.webp\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2023\/11\/v2-63b571cfffbb35c6aab4bf393294dd22_720w.webp.jpg\" alt=\"v2-63b571cfffbb35c6aab4bf393294dd22_720w.webp\" width=\"720\" height=\"524\" \/><\/div><figcaption>LM339 \u539f\u7406\u56fe<\/figcaption><\/figure>\n<p data-pid=\"Vs2P7Ktu\">\u5982\u679c\u53cd\u76f8 (-IN) \u8f93\u5165 (V2) \u5904\u7684\u7535\u538b\u5927\u4e8e\u540c\u76f8 (+IN) \u8f93\u5165 (V1)\uff0c\u5219\u8f93\u51fa\u5c06\u4e3a\u903b\u8f91\u00a0<b>\u96f6<\/b>\u3002<\/p>\n<p data-pid=\"maSuVJmy\"><b>V2&gt;V1 Vo = 0V \u6216 GND<\/b><\/p>\n<p data-pid=\"FUSwWzsI\">\u5982\u679c\u540c\u76f8 (+IN) \u8f93\u5165 (V1) \u5904\u7684\u7535\u538b\u5927\u4e8e\u53cd\u76f8 (-IN) \u8f93\u5165 (V2)\uff0c\u5219\u8f93\u51fa\u5c06\u4e3a\u903b\u8f91\u00a0<b>Vcc<\/b>\u3002<\/p>\n<p data-pid=\"MDrpUNv3\"><b>V1&gt;V2 \uff0c Vo = VCC<\/b><\/p>\n<h2 id=\"h_566600533_7\" data-into-catalog-status=\"\">\u4e94\u3001LM339 \u7279\u6027\u53c2\u6570<\/h2>\n<p data-pid=\"qpLBBTF3\">\u4e0b\u56fe\u4e3a\u00a0<b>LM339 \u82af\u7247\u5404\u5f15\u811a\u7684\u7535\u538b\u53c2\u6570\u56fe<\/b>\uff1a<\/p>\n<figure data-size=\"small\">\n<div><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13911\" title=\"v2-b505de40682c178660d545895c5abba8_720w.webp\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2023\/11\/v2-b505de40682c178660d545895c5abba8_720w.webp.jpg\" alt=\"v2-b505de40682c178660d545895c5abba8_720w.webp\" width=\"720\" height=\"1056\" \/><\/div><figcaption>LM339 \u82af\u7247\u5404\u5f15\u811a\u7684\u7535\u538b\u53c2\u6570\u56fe<\/figcaption><\/figure>\n<h2 id=\"h_566600533_8\" data-into-catalog-status=\"\">\u516d\u3001LM339 \u7684\u7b49\u6548\u578b\u53f7<\/h2>\n<p data-pid=\"9VmSkpAP\">LM311\u3001LM324\u3001LM397\u3001LM139\u3001LM239\u3001LM2901 \u7b49<\/p>\n<h2 id=\"h_566600533_9\" data-into-catalog-status=\"\">\u4e03\u3001LM339 \u7535\u8def\u56fe<\/h2>\n<h3 id=\"h_566600533_10\" data-into-catalog-status=\"\"><b>1\u3001LM339 \u6784\u5efa \u57fa\u672c\u6bd4\u8f83\u5668<\/b><\/h3>\n<p data-pid=\"qQD1gifu\">\u57fa\u672c\u6bd4\u8f83\u5668\u8bbe\u8ba1\u7684\u7535\u8def\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<figure data-size=\"normal\">\n<div><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13910\" title=\"v2-0168533e63900fd6ff90a54ce1356e36_720w.webp\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2023\/11\/v2-0168533e63900fd6ff90a54ce1356e36_720w.webp.jpg\" alt=\"v2-0168533e63900fd6ff90a54ce1356e36_720w.webp\" width=\"680\" height=\"520\" \/><\/div><figcaption>\u57fa\u672c\u6bd4\u8f83\u5668<\/figcaption><\/figure>\n<p data-pid=\"N63TbbF_\">\u4ece\u4e0a\u56fe\u4e2d\u53ef\u4ee5\u770b\u51fa\uff0c\u57fa\u672c\u6bd4\u8f83\u5668\u7531\u5177\u6709\u4e24\u4e2a\u4e0d\u540c\u53c2\u8003\u8f93\u5165\u7535\u538b\u7684 LM 339 \u548c\u4e00\u4e2a 15K \u7535\u963b\u7ec4\u6210\u3002<\/p>\n<h3 id=\"h_566600533_11\" data-into-catalog-status=\"\"><b>2\u3001LM339 \u6784\u5efa\u53cd\u76f8\u6bd4\u8f83\u5668\uff08\u8d1f\u8f7d\u4e0d\u80fd\u63a5\u5730\uff09<\/b><\/h3>\n<p data-pid=\"L3ycIEt9\">\u4e0b\u56fe\u4e3a<b>\u53cd\u76f8\u6bd4\u8f83\u5668\u7535\u8def<\/b>\u3002<b>\u5f53 Vin \u4f4e\u4e8e Vref\uff08\u53c2\u8003\u7535\u538b\uff09\u65f6\uff0c\u5b83\u4f1a\u5bfc\u81f4 LED \u4eae\u8d77<\/b>\u3002<\/p>\n<p data-pid=\"7QOqCTSU\">\u770b\u4e0b\u56fe\u53f3\u8fb9\u7684\u6ce2\u5f62\u56fe\uff0c\u5f53 Vin \u4f4e\u4e8e Vref \u65f6\uff0c\u8f93\u51fa\u4e3a\u9ad8\u7535\u5e73\u3002\u53e6\u4e00\u65b9\u9762\uff0c\u5f53 Vin \u9ad8\u4e8e Vref \u65f6\uff0c\u8f93\u51fa\u4e3a\u201c\u4f4e\u201d\u3002<\/p>\n<figure data-size=\"normal\">\n<div><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13912\" title=\"v2-7928f084c193bff6b4c813db63141354_720w.webp\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2023\/11\/v2-7928f084c193bff6b4c813db63141354_720w.webp.jpg\" alt=\"v2-7928f084c193bff6b4c813db63141354_720w.webp\" width=\"703\" height=\"332\" \/><\/div><figcaption>\u53cd\u76f8\u6bd4\u8f83\u5668<\/figcaption><\/figure>\n<p data-pid=\"gahW4Ww-\">\u8fd9\u4e2a\u4e0d\u53ef\u4ee5\u5c06\u8d1f\u8f7d\u8fde\u63a5\u642d\u914d\u8f93\u51fa\u548c\u5730\uff0c\u56e0\u4e3a<b>\u4e0d\u80fd\u5de5\u4f5c\uff0c\u6ca1\u6709\u6765\u81ea LED \u7684\u5149<\/b>\u3002<\/p>\n<h3 id=\"h_566600533_12\" data-into-catalog-status=\"\"><b>3\u3001LM339 \u6784\u5efa\u540c\u76f8\u6bd4\u8f83\u5668\uff08\u8d1f\u8f7d\u63a5\u5730\uff09<\/b><\/h3>\n<p data-pid=\"hljpfvI2\">\u8fd9\u91cc\u8981\u5c06\u8d1f\u8f7d\u63a5\u5730\uff0c\u5bf9\u4e0a\u9762\u8fdb\u884c\u6539\u53d8\uff0c<b>\u901a\u8fc7 R4\u20143.3K \u7535\u963b\u5c06\u4e00\u4e9b\u6b63\u7535\u6d41\u5f15\u5165\u8f93\u51fa<\/b>\uff0c\u5f53 Vin \u8d85\u8fc7 Vref \u65f6\uff0c\u8f93\u51fa\u5c06\u4ece\u201c\u4f4e\u201d\u5207\u6362\u5230\u201c\u9ad8\u201d\u3002<\/p>\n<figure data-size=\"small\">\n<div><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13914\" title=\"v2-ff200eb902778f37ecd2fc61d89b51a3_720w.webp\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2023\/11\/v2-ff200eb902778f37ecd2fc61d89b51a3_720w.webp.jpg\" alt=\"v2-ff200eb902778f37ecd2fc61d89b51a3_720w.webp\" width=\"720\" height=\"500\" \/><\/div><figcaption>\u540c\u76f8\u6bd4\u8f83\u5668\uff08\u8d1f\u8f7d\u63a5\u5730\uff09<\/figcaption><\/figure>\n<p data-pid=\"LOx7UJuv\">\u5728\u8fd9\u4e2a\u7535\u8def\u4e2d\uff0cVref \u59cb\u7ec8\u662f\u7535\u6e90\u7684\u4e00\u534a\uff0c\u6d4b\u91cf\u7684\u7535\u6e90\u7535\u538b\u7ea6\u4e3a 8.4V\uff0c\u56e0\u6b64 Vref \u7ea6\u4e3a 4.20V\u3002\u63a5\u7740\uff0c\u8c03\u6574 VR1\uff0c\u4f7f Vin \u4e3a 4.21V \u3002\u56e0\u4e3a\u00a0<b>Vin \u5927\u4e8e Vref\uff0c\u6240\u4ee5 LED \u706f\u53ef\u4ee5\u4eae\u8d77\u3002<\/b><\/p>\n<h3 id=\"h_566600533_13\" data-into-catalog-status=\"\"><b>4\u3001LM339 \u6784\u5efa\u53cd\u76f8\u6bd4\u8f83\u5668\uff08\u8d1f\u8f7d\u63a5\u5730\uff09<\/b><\/h3>\n<p data-pid=\"0HnbkACW\">\u8fd9\u91cc\u901a\u8fc7\u5bf9\u4e0a\u9762\u7684\u7535\u8def\u8fdb\u884c\u6539\u8fdb\uff0c\u53ea\u9700\u8981<b>\u6dfb\u52a0\u4e00\u4e2a\u7535\u963b\u5c31\u53ef\u4ee5\u5c06\u7535\u6d41\u4f20\u9012\u5230\u8f93\u51fa\u7aef<\/b>\uff0c\u5e76\u4e14\u5728<b>\u8f93\u51fa\u548c\u5730\u4e4b\u95f4\u653e\u7f6e\u8d1f\u8f7d\u3002<\/b><\/p>\n<figure data-size=\"small\">\n<div><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13921\" title=\"v2-7ff73a7b55b2684ebf553ac73e068e47_720w.webp\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2023\/11\/v2-7ff73a7b55b2684ebf553ac73e068e47_720w.webp.jpg\" alt=\"v2-7ff73a7b55b2684ebf553ac73e068e47_720w.webp\" width=\"720\" height=\"558\" \/><\/div><figcaption>\u53cd\u76f8\u6bd4\u8f83\u5668\uff08\u8d1f\u8f7d\u63a5\u5730\uff09<\/figcaption><\/figure>\n<p data-pid=\"dAwh_XJr\">\u53ea\u6709\u5f53 Vin \u4f4e\u4e8e Vref \u65f6\uff0c\u8f93\u51fa\u624d\u4e3a\u9ad8\u3002\u4f8b\u5982\uff0cVref \u603b\u662f\u8bbe\u7f6e\u4e3a\u7535\u6e90\u7684\u4e00\u534a\uff0c\u6240\u4ee5\u5b83\u662f 4.20V\u3002<b>\u5f53 Vin \u4f4e\u4e8e 4.20V \u65f6\uff0cLED \u5f00\u59cb\u53d1\u5149<\/b>\u3002<\/p>\n<p data-pid=\"rd_CmreO\">\u5f53\u6211\u4eec\u8c03\u6574 VR1 \u5c06 Vin \u8bbe\u7f6e\u5f97\u66f4\u4f4e\u65f6\uff0c\u4f8b\u5982 4.19V \u65f6\uff0cLED\u7acb\u5373\u5f00\u59cb\u4eae\u8d77\u3002<\/p>\n<h3 id=\"h_566600533_14\" data-into-catalog-status=\"\"><b>5\u3001LM339 \u6784\u5efa\u9a71\u52a8 CMOS \u7535\u8def<\/b><\/h3>\n<p data-pid=\"mhsy0r2l\">\u4e3a\u9a71\u52a8 CMOS \u800c\u8bbe\u8ba1\u7684\u7535\u8def\u5982\u4e0b\u56fe\u6240\u793a\u3002<\/p>\n<figure data-size=\"small\">\n<div><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13915\" title=\"v2-6762a87768fe92da879509d04d74aff8_720w.webp\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2023\/11\/v2-6762a87768fe92da879509d04d74aff8_720w.webp.jpg\" alt=\"v2-6762a87768fe92da879509d04d74aff8_720w.webp\" width=\"750\" height=\"620\" \/><\/div><figcaption>LM339 \u6784\u5efa\u9a71\u52a8 CMOS \u7535\u8def<\/figcaption><\/figure>\n<p data-pid=\"E1MRAGKR\">\u4ece\u4e0a\u9762\u7684\u7535\u8def\u56fe\u53ef\u4ee5\u770b\u51fa\uff0c\u9a71\u52a8 CMOS \u7531 LM339 \u7ec4\u6210\uff0c\u6709\u4e24\u4e2a\u4e0d\u540c\u7684\u53c2\u8003\u8f93\u5165\u7535\u538b\u548c\u4e00\u4e2a 100K \u7684\u7535\u963b\u3002<\/p>\n<h3 id=\"h_566600533_15\" data-into-catalog-status=\"\"><b>6\u3001LM339 \u6784\u5efa\u4f4e\u9891\u8fd0\u7b97\u653e\u5927\u5668<\/b><\/h3>\n<p data-pid=\"-mNtPTjc\"><b>LM339 \u6784\u5efa\u4f4e\u9891\u8fd0\u7b97\u653e\u5927\u5668<\/b>\u7535\u8def\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<figure data-size=\"small\">\n<div><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13916\" title=\"v2-4e7f5b33848da9fbd1d3afa7a6105533_720w.webp\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2023\/11\/v2-4e7f5b33848da9fbd1d3afa7a6105533_720w.webp.jpg\" alt=\"v2-4e7f5b33848da9fbd1d3afa7a6105533_720w.webp\" width=\"658\" height=\"608\" \/><\/div><figcaption>LM339 \u6784\u5efa\u4f4e\u9891\u8fd0\u7b97\u653e\u5927\u5668<\/figcaption><\/figure>\n<p data-pid=\"tcuA4ylW\">\u4ece\u4e0a\u56fe\u53ef\u4ee5\u770b\u51fa\uff0c\u4f4e\u9891\u8fd0\u7b97\u653e\u5927\u5668\u7531\u5177\u6709\u4e24\u4e2a\u4e0d\u540c\u53c2\u8003\u8f93\u5165\u7535\u538b\u7684 LM339 \u7ec4\u6210\uff0c\u4e00\u4e2a 15K \u7535\u963b\u548c\u4e00\u4e2a\u7535\u538b\u589e\u76ca\u7ea6\u4e3a 100 \u7684 100K \u7535\u963b\u3002<\/p>\n<h3 id=\"h_566600533_16\" data-into-catalog-status=\"\"><b>7\u3001LM339 \u6784\u5efa\u4f20\u611f\u5668\u653e\u5927\u5668<\/b><\/h3>\n<p data-pid=\"YsE3bFsw\">\u4e0b\u56fe\u4e3a\u00a0<b>LM339 \u6784\u5efa\u7684\u4f20\u611f\u5668\u653e\u5927\u5668<\/b>\uff1a<\/p>\n<figure data-size=\"normal\">\n<div><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13918\" title=\"v2-a6e2a004e33713ac6ecf0aea809ac96b_720w.webp\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2023\/11\/v2-a6e2a004e33713ac6ecf0aea809ac96b_720w.webp.jpg\" alt=\"v2-a6e2a004e33713ac6ecf0aea809ac96b_720w.webp\" width=\"552\" height=\"556\" \/><\/div><figcaption>LM339 \u6784\u5efa\u4f20\u611f\u5668\u653e\u5927\u5668<\/figcaption><\/figure>\n<p data-pid=\"RoHR6wH7\">\u4ece\u4e0a\u56fe\u53ef\u4ee5\u770b\u51fa\uff0c\u4f20\u611f\u5668\u653e\u5927\u5668\u7531 LM 339 \u7ec4\u6210\uff0c\u6709\u4e24\u4e2a\u4e0d\u540c\u7684\u53c2\u8003\u8f93\u5165\u7535\u538b\uff0c\u4e00\u4e2a 3K \u7535\u963b\uff0c\u4e00\u4e2a 20M \u7535\u963b\u548c\u4e24\u4e2a 10K \u7535\u963b\u3002<\/p>\n<h3 id=\"h_566600533_17\" data-into-catalog-status=\"\"><b>8\u3001LM339 \u6784\u5efa\u8fc7\u96f6\u68c0\u6d4b\u5668<\/b><\/h3>\n<p data-pid=\"xga4SjA5\"><b>LM339 \u6784\u5efa\u7684\u8fc7\u96f6\u68c0\u6d4b\u5668<\/b>\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<figure data-size=\"normal\">\n<div><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13917\" title=\"v2-90d5506be154227db6b8f1a9d5da493a_720w.webp\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2023\/11\/v2-90d5506be154227db6b8f1a9d5da493a_720w.webp.jpg\" alt=\"v2-90d5506be154227db6b8f1a9d5da493a_720w.webp\" width=\"836\" height=\"762\" \/><\/div><figcaption>LM339 \u6784\u5efa\u7684\u8fc7\u96f6\u68c0\u6d4b\u5668<\/figcaption><\/figure>\n<p data-pid=\"Tb4ARQBi\">\u4ece\u4e0a\u56fe\u53ef\u4ee5\u770b\u8fc7\u96f6\u68c0\u6d4b\u653e\u5927\u5668\u7531 LM339 \u7ec4\u6210\uff0c\u4e24\u4e2a\u4e0d\u540c\u7684\u53c2\u8003\u8f93\u5165\u7535\u538b\uff0c\u4e00\u4e2a10K \u7535\u963b\uff0c\u4e00\u4e2a 20M \u7535\u963b\uff0c\u4e09\u4e2a 5.1K \u7535\u963b\uff0c\u4e24\u4e2a 100K \u7535\u963b\u548c 1N4148 \u4e8c\u6781\u7ba1\u3002<\/p>\n<h3 id=\"h_566600533_18\" data-into-catalog-status=\"\"><b>9\u3001 LM339 \u6784\u5efa\u7684\u7535\u6c60\u7535\u538b\u76d1\u63a7\u5668<\/b><\/h3>\n<p data-pid=\"My2xKjDq\"><b>\u7535\u6c60\u7535\u538b\u68c0\u6d4b\u5668<\/b>\u4f7f\u7528\u00a0<b>LM339 \u6bd4\u8f83\u5668<\/b>\uff0c<b>\u7535\u963b<\/b>\u3001<b>\u7535\u4f4d\u5668<\/b>\u548c<b>\u4e8c\u6781\u7ba1<\/b>\u7b49\u5143\u4ef6\u3002<\/p>\n<p data-pid=\"cPYfLKvU\">\u8be5\u7535\u8def\u4e3b\u8981\u7531 R1 \u7535\u963b 1K \u3001VR1 \u7535\u4f4d\u5668 5K \u3001LM339 \u7535\u538b\u6bd4\u8f83\u5668 IC\u3001\u7a33\u538b\u4e8c\u6781\u7ba1 ZD1-6V\u3001LED\u3001\u538b\u7535\u8702\u9e23\u5668 BZ1 \u7b49\u7ec4\u6210\u3002<\/p>\n<p data-pid=\"Xd3zZCUM\"><b>\u5f53\u63a2\u5934\u8fde\u63a5\u5230 9V\u7535\u6c60\u65f6\uff0c\u7535\u8def\u5c06\u88ab\u6fc0\u6d3b\u3002<\/b><\/p>\n<p data-pid=\"Sm2zz7a7\">LM339 \u6709\u6b63\u6781\u548c\u8d1f\u6781\u5f15\u811a\uff0c\u5206\u522b\u662f\u5f15\u811a 3 \u548c\u5f15\u811a 12\uff0c\u5982\u4e0b\u56fe\u7535\u8def\u6240\u793a\u3002\u540c\u65f6\uff0c\u6765\u81ea\u7535\u6c60\u7684\u7535\u538b\u5c06\u901a\u8fc7\u7535\u4f4d\u5668 VR1 \u6d41\u5411 IC \u7684\u975e\u53cd\u76f8\u7aef\u5b50\uff08\u5f15\u811a 5\uff09\u3002<\/p>\n<figure data-size=\"small\">\n<div><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13919\" title=\"v2-c75cfe70ff58561dfbc0683201ca345d_720w.webp\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2023\/11\/v2-c75cfe70ff58561dfbc0683201ca345d_720w.webp.jpg\" alt=\"v2-c75cfe70ff58561dfbc0683201ca345d_720w.webp\" width=\"720\" height=\"487\" \/><\/div><figcaption>LM339 \u6784\u5efa\u7684\u7535\u6c60\u7535\u538b\u76d1\u63a7\u5668<\/figcaption><\/figure>\n<p data-pid=\"tJimtAEu\">\u7136\u540e\u7535\u8def\u4e2d\u7684\u7535\u963b R1 \u9650\u5236\u7535\u6d41\u6d41\u5411 IC\uff08\u5f15\u811a 4\uff09\u53cd\u76f8\u7aef\u7684 6V \u9f50\u7eb3\u4e8c\u6781\u7ba1\u3002LM339 \u7684\u53cd\u76f8\u548c\u975e\u53cd\u76f8\u7535\u538b\u90fd\u4f1a\u6bd4\u8f83 IC1 \u4e2d\u7684\u4e24\u4e2a\u7535\u538b\u3002\u81f3\u4e8e\u6307\u793a\u706f\uff0c\u5219\u4f7f\u7528\u8702\u9e23\u5668\u548c LED\u3002\u8fde\u63a5\u5728\u8702\u9e23\u5668\u548c\u4e8c\u6781\u7ba1\u4e4b\u95f4\u7684\u7535\u963b R2 \u5c06\u63a7\u5236\u901a\u8fc7\u5b83\u4eec\u7684\u7535\u6d41\u3002<\/p>\n<p data-pid=\"-4V_mCWk\">\u8fd9\u91cc\u7535\u8def\u4e2d\u4e24\u4e2a\u7535\u538b\u7684\u6bd4\u8f83\u53ef\u4ee5\u901a\u8fc7 LM339 \u6765\u5b8c\u6210\uff0c\u8f93\u51fa\u4e3a V0\uff0c\u7535\u8def\u7531\u5355\u7535\u6e90 VCC\u4f9b\u7535\u3002\u4e24\u4e2a\u7535\u538b\u4e4b\u95f4\u7684\u6bd4\u8f83\u53ef\u4ee5\u57fa\u4e8e\u4ee5\u4e0b\u6761\u4ef6\u8fdb\u884c\u3002<\/p>\n<p data-pid=\"tlfRwg5D\">\u5982\u679c\u521d\u7ea7\u7535\u538b\u5927\u4e8e\u7b2c\u4e8c\u7535\u538b\uff08V1&gt;V2\uff09\uff0c\u5219\u8f93\u51fa\u7535\u538b\u5c06\u4e3a VCC\u3002<b>\u5982\u679c\u521d\u7ea7\u7535\u538b\u5c0f\u4e8e\u6b21\u7ea7\u7535\u538b\uff08V1 \u5f53\u521d\u7ea7\u7535\u538b\u9ad8\u4e8e 6Volts \u65f6\uff0c\u8f93\u51fa\u5c06\u5904\u4e8e\u9ad8\u7535\u538b\u72b6\u6001\uff0c\u56e0\u6b64 LED \u4e0d\u4f1a\u95ea\u70c1\uff0c\u8702\u9e23\u5668\u4e5f\u4e0d\u4f1a\u53d1\u51fa\u58f0\u97f3\u3002\uff09<\/b><\/p>\n<p data-pid=\"6wCUcL8N\">\u56e0\u4e3a\u5b83\u4eec\u7684\u6bcf\u4e2a\u7aef\u5b50\u90fd\u8fde\u63a5\u5230 LM339 \u8f93\u51fa\u5f15\u811a\u548c\u6b63\u7535\u6e90\u3002\u5f53\u521d\u7ea7\u7535\u538b\u4f4e\u4e8e 6v \u65f6\uff0cLED \u4f1a\u53d1\u5149\uff0c\u8702\u9e23\u5668\u4f1a\u53d1\u51fa\u58f0\u3002\u7535\u538b\u7535\u5e73\u548c\u7535\u8def\u7075\u654f\u5ea6\u53ef\u901a\u8fc7\u7535\u4f4d\u5668 VR1 \u8c03\u8282\u3002<\/p>\n<h3 id=\"h_566600533_19\" data-into-catalog-status=\"\"><b>10\u3001LM339 LED \u7535\u538b\u76d1\u63a7\u5668<\/b><\/h3>\n<p data-pid=\"ZnnSvopc\">LM339 \u64c5\u957f\u4f4e\u538b\u68c0\u6d4b\uff0c\u5e76\u4e14\u6bd4\u5176\u4ed6\u8fd0\u7b97\u653e\u5927\u5668\u66f4\u51c6\u786e\uff0c\u5177\u4f53\u7684\u770b\u4e0b\u9762\u7684\u7535\u8def\u56fe\uff1a<\/p>\n<figure data-size=\"small\">\n<div><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13922\" title=\"v2-3b7ccde7e94798a273cb478b818d9ddf_720w.webp\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2023\/11\/v2-3b7ccde7e94798a273cb478b818d9ddf_720w.webp.jpg\" alt=\"v2-3b7ccde7e94798a273cb478b818d9ddf_720w.webp\" width=\"720\" height=\"523\" \/><\/div><figcaption>LM339 LED\u7535\u538b\u76d1\u63a7\u5668<\/figcaption><\/figure>\n<p data-pid=\"aVdbBHeg\"><b>LED \u7535\u538b\u76d1\u63a7\u5668\u7535\u8def\u662f\u4e00\u4e2a\u540c\u76f8\u6bd4\u8f83\u5668<\/b>\u3002\u5f15\u811a 5\uff08\u975e\u53cd\u76f8\uff09\u548c\u5730\u7684\u7535\u538b\u662f\u7ecf\u8fc7\u6d4b\u8bd5\u7684\u8f93\u5165\u7535\u538b\u3002<\/p>\n<p data-pid=\"KMgsLf8I\">\u63a5\u4e0b\u6765\uff0cR1 \u548c R2 \u4f7f\u53c2\u8003\u7535\u538b\u5f15\u811a 5\uff08\u53cd\u76f8\uff09\uff0c\u4e24\u4e2a\u7535\u963b\u5747\u8bbe\u7f6e\u4e3a\u5206\u538b\u5668\u5f62\u5f0f\u3002\u5982\u679c\u5b83\u4eec\u6709\u76f8\u540c\u7684\u963b\u529b\uff0c\u5c06\u5bfc\u81f4\u53c2\u8003\u7535\u538b\u59cb\u7ec8\u4e3a Vcc \u7684\u4e00\u534a\uff0cVcc \u4e3a 9V\uff0c\u6240\u4ee5\u8fd9\u4e2a\u7535\u538b\u662f4.5V\u3002<\/p>\n<p data-pid=\"_FfB5G-L\"><b>\u5f53\u5f15\u811a 5 \u8f93\u5165\u7535\u538b\u4f4e\u4e8e\u5f15\u811a 4 \u7684\u53c2\u8003\u7535\u538b\u65f6\uff0cLED \u663e\u793a\u5c4f\u5c06\u4eae\u8d77<\/b>\u3002\u6b64\u5916\uff0c\u8be5\u7535\u8def\u65e0\u6cd5\u68c0\u6d4b\u5230 6V \u7684\u8f83\u4f4e\u7535\u538b\u3002<\/p>\n<p data-pid=\"SHqIHKzO\"><b>VR1\u2014\u8c03\u6574\u6d4b\u8bd5\u4e0d\u8981\u592a\u9ad8\u7684\u8f93\u5165\u7535\u538b\u7535\u5e73\uff1bR3\u2014\u5c06\u7535\u6d41\u964d\u4f4e\u5230 LED1 \u7684\u5b89\u5168\u6c34\u5e73\u3002<\/b><\/p>\n<h3 id=\"h_566600533_20\" data-into-catalog-status=\"\"><b>11\u3001LM339 \u56db\u7535\u538b\u6bd4\u8f83\u5668\u7535\u8def\u539f\u7406\u56fe<\/b><\/h3>\n<p data-pid=\"1wUg9BR2\">LM339 \u56db\u7535\u538b\u6bd4\u8f83\u5668\u7535\u8def\u7684\u7535\u8def\u539f\u7406\u56fe\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<p data-pid=\"hL79q3t3\">\u8fd9\u4e2a\u7535\u8def\u5b9e\u9645\u4e0a\u53ea\u662f\u4e3a\u4e86\u6f14\u793a\u624d\u6784\u5efa\uff0c\u4e3b\u8981\u76ee\u7684\u8fd8\u662f\u4e3a\u4e86\u66f4\u52a0\u660e\u4e86\u5730\u5c55\u793a \u5982\u4f55\u8fde\u63a5 LM339 \u4ee5\u53ca LM339\u662f\u600e\u4e48\u5de5\u4f5c\u7684\u3002<\/p>\n<p data-pid=\"CvYGIjgP\">\u5728\u8fd9\u4e2a\u7535\u8def\u4e2d\uff0c\u6709 4 \u4e2a\u4e0d\u540c\u989c\u8272\u7684 LED\u3002\u5bf9\u4e8e\u8fd0\u7b97\u653e\u5927\u5668\u7684\u6bcf\u4e2a\u53cd\u76f8\u7aef\u5b50\uff0c\u6211\u4eec\u8fde\u63a5\u4e86\u7535\u4f4d\u5668\u7684\u62bd\u5934\u7aef\u5b50\uff0c\u7535\u4f4d\u5668\u7684\u4e00\u7aef\u63a5 Vcc\uff0c\u53e6\u4e00\u7aef\u63a5\u5730\uff0c\u7136\u540e\u5c06 +2V \u7535\u6e90\u8fde\u63a5\u5230\u8fd0\u7b97\u653e\u5927\u5668\u7684\u6bcf\u4e2a\u540c\u76f8\u7aef\u5b50\u3002<\/p>\n<p data-pid=\"dIpmfo9N\">\u4e3a\u4e86\u7ed9 LM339 \u82af\u7247\u4f9b\u7535\uff0c\u5c06\u82af\u7247\u7684 Vcc \u7aef\u5b50\uff08\u5f15\u811a 3\uff09\u8fde\u63a5\u5230 +5V\uff0c\u5e76\u5c06 GND \u7aef\u5b50\uff08\u5f15\u811a 12\uff09\u8fde\u63a5\u5230\u5730\uff0c\u4e0d\u4ec5\u7ed9\u00a0<b>LM339 \u63d0\u4f9b\u4e86\u8fd0\u884c\u6240\u9700\u7684\u529f\u7387\uff0c\u8fd8\u4e3a\u7535\u8def\u63d0\u4f9b\u504f\u7f6e<\/b>\u3002\u8fd9\u662f\u56e0\u4e3a\u5f53\u53cd\u76f8\u7aef\u5927\u4e8e\u8fd0\u7b97\u653e\u5927\u5668\u7684\u540c\u76f8\u7aef\u65f6\uff0c\u8f93\u51fa\u5c06\u88ab\u5e26\u5230 Vcc\u3002<\/p>\n<p data-pid=\"47G2Vznf\">\u5728\u6bcf\u4e2a\u8f93\u51fa\u5f15\u811a\u4e0a\uff0c\u90fd\u8fde\u63a5\u4e00\u4e2a\u9650\u6d41\u7535\u963b\uff08\u7ea6\uff09330\u03a9\uff09\u548c\u4e00\u4e2a LED\u3002LED \u90fd\u662f\u4e0d\u540c\u989c\u8272\u7684\u3002\u8fde\u63a5\u6240\u6709\u5f15\u811a\u540e\uff0c\u73b0\u5728\u53ef\u4ee5\u68c0\u67e5\u7535\u8def\u662f\u5426\u80fd\u591f\u6b63\u5e38\u5de5\u4f5c\u3002<\/p>\n<figure data-size=\"small\">\n<div><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13923\" title=\"v2-f3b9f0cdd8fdbc5e4d8577bb6f1e7f18_720w.webp\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2023\/11\/v2-f3b9f0cdd8fdbc5e4d8577bb6f1e7f18_720w.webp.jpg\" alt=\"v2-f3b9f0cdd8fdbc5e4d8577bb6f1e7f18_720w.webp\" width=\"720\" height=\"577\" \/><\/div><figcaption>LM339 \u56db\u7535\u538b\u6bd4\u8f83\u5668\u7535\u8def\u539f\u7406\u56fe<\/figcaption><\/figure>\n<p data-pid=\"s06Lwn81\">\u9996\u5148\uff0c\u786e\u4fdd\u7b2c\u4e00\u6b21\u8fd0\u8f6c\u7535\u8def\u65f6\u6240\u6709\u8f93\u51fa\u90fd\u5173\u95ed\uff0c\u5fc5\u987b\u8c03\u6574\u6240\u6709\u7535\u4f4d\u5668\uff0c\u4f7f\u5b83\u4eec\u8f93\u51fa\u63a5\u8fd1 0\u03a9 \u7684\u7535\u963b\uff0c\u73b0\u5728\u6253\u5f00\u7535\u8def\uff0c\u6240\u6709\u7684 LED \u90fd\u5e94\u8be5\u7184\u706d\u3002<\/p>\n<p data-pid=\"Qie-EoIG\">\u7136\u540e<b>\u8c03\u8282\u7535\u4f4d\u5668\uff0c\u4f7f\u5176\u7535\u963b\u589e\u52a0\uff0c\u5f53\u7535\u963b\u8d85\u8fc7 2V \u65f6\uff0c\u73b0\u5728\u53cd\u76f8\u7aef\u7535\u538b\u5927\u4e8e\u540c\u76f8\u7aef\u7535\u538b\uff0c\u7b2c\u4e00\u4e2aLED\u7b49\u4f1a\u4eae\u8d77\u3002\u56e0\u6b64\uff0c\u8f93\u51fa\u4ece VCC\u6446\u52a8\u63a5\u5730\uff0c\u8d1f\u8f7d\u901a\u7535\u3002<\/b><\/p>\n<p data-pid=\"P-tKY4l4\">\u63a5\u4e0b\u6765\u5bf9\u5269\u4e0b\u7684 3\u4e2a\u8fd0\u7b97\u653e\u5927\u5668\u8fdb\u884c\u548c\u4e0a\u9762\u4e00\u4e2a\u7684\u64cd\u4f5c\uff08\u8c03\u6574\u7535\u4f4d\u5668\uff09\uff0c\u5c06\u4f1a\u51fa\u73b0\u4e00\u6837\u7684\u7ed3\u679c\u3002<\/p>\n<p data-pid=\"5UEaCF5s\"><b>\u5f53\u7535\u538b\u9ad8\u4e8e\u9988\u5165\u540c\u76f8\u7aef\u5b50\u7684\u53c2\u8003 2V \u65f6\uff0c\u6bcf\u4e2a\u8f93\u51fa LED \u90fd\u4f1a\u4eae\u8d77\u3002<\/b><\/p>\n<h3 id=\"h_566600533_21\" data-into-catalog-status=\"\"><b>12\u3001\u7528LM339\u6784\u6210\u632f\u8361\u5668<\/b><\/h3>\n<p data-pid=\"0LjtdAZi\">\u4e0b\u5982\u4e3a\u00a0<b>1\/4LM339\u7ec4\u6210\u7684\u97f3\u9891\u65b9\u6ce2\u632f\u8361\u5668\u7535\u8def<\/b>\uff0c<b>\u6539\u53d8 C1 \u53ef\u4ee5\u6539\u53d8\u8f93\u51fa\u65b9\u6ce2\u7684\u9891\u7387<\/b>\u3002<\/p>\n<p data-pid=\"JrJM2Egz\">\u5728\u4e0b\u9762\u8fd9\u4e2a\u7535\u8def\u4e2d\uff0c\u5f53C1=0.1uF\u65f6\uff0cf=53Hz\uff1b\u5f53C1=0.01uF\uff0cf=530Hz\uff1b\u5f53 C1=0.001uF\uff0cf=5300Hz\u3002<\/p>\n<p data-pid=\"ihqPVciE\">LM339 \u8fd8\u53ef\u4ee5\u7ec4\u6210\u9ad8\u538b\u6570\u5b57\u903b\u8f91\u95e8\u7535\u8def\uff0c\u53ef\u4ee5\u76f4\u63a5\u4e0e TTL \u548c CMOS \u7535\u8def\u63a5\u53e3\u3002<\/p>\n<figure data-size=\"small\">\n<div><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-13920\" title=\"v2-f6fcad1f9ff86b94b7fbcf1dd75fb54f_720w.webp\" src=\"http:\/\/www.szryc.com\/wp-content\/uploads\/2023\/11\/v2-f6fcad1f9ff86b94b7fbcf1dd75fb54f_720w.webp.jpg\" alt=\"v2-f6fcad1f9ff86b94b7fbcf1dd75fb54f_720w.webp\" width=\"720\" height=\"413\" \/><\/div><figcaption>LM339 \u632f\u8361\u5668<\/figcaption><\/figure>\n<h2 id=\"h_566600533_22\" data-into-catalog-status=\"\">\u516b\u3001LM339 \u529f\u80fd<\/h2>\n<p data-pid=\"L7STgftt\">LM339 \u529f\u80fd\u975e\u5e38\u591a\uff0c\u5728\u5b9e\u9645\u4e2d\u6709\u7740\u975e\u5e38\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u8fd9\u91cc\u5217\u4e3e\u51e0\u4e2aLM339\u529f\u80fd\u53ca\u4e3b\u8981\u5e94\u7528<\/p>\n<ul>\n<li data-pid=\"mI4nvfKl\">\u632f\u8361\u5668<\/li>\n<li data-pid=\"fjecjX1c\">\u7535\u538b\u6bd4\u8f83\u5668<\/li>\n<li data-pid=\"RdPYfftM\">\u5cf0\u503c\u68c0\u6d4b\u5668<\/li>\n<li data-pid=\"Jx8P8c_W\">\u5de5\u4e1a\u7684<\/li>\n<li data-pid=\"DY-VKBgy\">\u6c7d\u8f66<\/li>\n<li data-pid=\"thNvGoXm\">\u6d4b\u91cf\u4eea\u5668<\/li>\n<li 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