{"id":12671,"date":"2024-06-06T17:22:19","date_gmt":"2024-06-06T09:22:19","guid":{"rendered":"https:\/\/boqiled.com\/?p=12671"},"modified":"2025-12-03T17:12:41","modified_gmt":"2025-12-03T09:12:41","slug":"what-is-pwm-dimming-for-led-driver","status":"publish","type":"post","link":"https:\/\/boqiled.com\/zh\/what-is-pwm-dimming-for-led-driver\/","title":{"rendered":"LED\u9a71\u52a8\u5668\u4e2d\u7684PWM\u8c03\u5149\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"<p><strong>\u8109\u51b2\u5bbd\u5ea6\u8c03\u5236\uff08PWM\uff09\u8c03\u5149\u662f\u4e00\u79cd\u7528\u4e8e\u63a7\u5236LED\u4eae\u5ea6\u7684\u6d41\u884c\u6280\u672f\u3002\u7531\u4e8e\u5176\u9ad8\u6548\u6027\u548c\u63d0\u4f9b\u7cbe\u786e\u8c03\u5149\u63a7\u5236\u7684\u80fd\u529b\uff0c\u5b83\u88ab\u5e7f\u6cdb\u4f7f\u7528\u3002\u672c\u6587\u63a2\u8ba8\u4e86PWM\u8c03\u5149\u3001\u5176\u4f18\u52bf\u3001\u6280\u672f\u7ec6\u8282\uff0c\u4ee5\u53ca\u5b83\u4e0e\u5176\u4ed6\u8c03\u5149\u65b9\u6cd5\u7684\u6bd4\u8f83\u3002.<\/strong><\/p>\n\n\n\n<p><strong>LED\u9a71\u52a8\u5668\u7684PWM\u8c03\u5149\u4f7f\u7528\u8109\u51b2\u5bbd\u5ea6\u8c03\u5236\u3002\u5b83\u901a\u8fc7\u4ee5\u9ad8\u9891\u5f00\u5173LED\u6765\u8c03\u6574\u5176\u4eae\u5ea6\u3002\u901a\u8fc7\u6539\u53d8\u5360\u7a7a\u6bd4\uff0c\u4f20\u9012\u7ed9LED\u7684\u5e73\u5747\u529f\u7387\u53d1\u751f\u53d8\u5316\uff0c\u4ece\u800c\u63a7\u5236\u4eae\u5ea6\u3002PWM\u8c03\u5149\u56e0\u5176\u9ad8\u6548\u6027\u800c\u5907\u53d7\u9752\u7750\u3002\u5b83\u80fd\u5bf9LED\u4eae\u5ea6\u8fdb\u884c\u7cbe\u786e\u63a7\u5236\u3002\u8fd9\u4f7f\u5176\u9002\u7528\u4e8e\u8bb8\u591a\u7167\u660e\u5e94\u7528\u3002.<\/strong><\/p>\n\n\n\n<p>\u4e3a\u4e86\u66f4\u597d\u5730\u7406\u89e3PWM\u8c03\u5149\uff0c\u6211\u4eec\u9700\u8981\u6df1\u5165\u4e86\u89e3\u5176\u5de5\u4f5c\u539f\u7406\u4ee5\u53ca\u4e3a\u4f55\u5b83\u6bd4\u5176\u4ed6\u65b9\u6cd5\u66f4\u53d7\u9752\u7750\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5173\u4e8e\u8c03\u5149\u7684\u89c1\u89e3<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"353\" height=\"200\" src=\"https:\/\/boqiled.com\/wp-content\/uploads\/2023\/07\/LED-Strips-Dimming.gif\" alt=\"LED\u706f\u5e26\u8c03\u5149\" class=\"wp-image-10045\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u6052\u6d41\u964d\u4f4e\uff08CCR\uff09<\/h3>\n\n\n\n<p>LED\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u8fdb\u884c\u8c03\u5149\u3002\u6700\u5e38\u89c1\u7684\u662f\u6052\u6d41\u964d\u4f4e\uff08CCR\uff09\u548c\u8109\u51b2\u5bbd\u5ea6\u8c03\u5236\uff08PWM\uff09\u3002CCR\u964d\u4f4e\u63d0\u4f9b\u7ed9LED\u7684\u7535\u6d41\uff0c\u4ece\u800c\u964d\u4f4e\u5176\u4eae\u5ea6\u3002\u8fd9\u79cd\u65b9\u6cd5\u7b80\u5355\u3002\u4f46\u662f\uff0c\u5b83\u53ef\u80fd\u4f1a\u6539\u53d8LED\u7684\u989c\u8272\u548c\u6548\u7387\u3002\u964d\u4f4e\u7535\u6d41\u53ef\u80fd\u5bfc\u81f4CCR\u6539\u53d8LED\u7684\u989c\u8272\u6216\u4f7f\u5176\u53d8\u6697\u3002\u6b64\u5916\uff0c\u8fd9\u79cd\u65b9\u6cd5\u53ef\u80fd\u4ea7\u751f\u66f4\u591a\u70ed\u91cf\u3002\u8fd9\u79cd\u70ed\u91cf\u53ef\u80fd\u4f1a\u7f29\u77edLED\u5143\u4ef6\u7684\u5bff\u547d\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"800\" height=\"350\" src=\"https:\/\/boqiled.com\/wp-content\/uploads\/2024\/06\/image-4.png\" alt=\"\" class=\"wp-image-12674\" srcset=\"https:\/\/boqiled.com\/wp-content\/uploads\/2024\/06\/image-4.png 800w, https:\/\/boqiled.com\/wp-content\/uploads\/2024\/06\/image-4-300x131.png 300w, https:\/\/boqiled.com\/wp-content\/uploads\/2024\/06\/image-4-768x336.png 768w, https:\/\/boqiled.com\/wp-content\/uploads\/2024\/06\/image-4-18x8.png 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>\u6052\u6d41\u964d\u4f4e\u5728\u4ee5\u4e0b\u9886\u57df\u6709\u5176\u5e94\u7528\u3002.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9a71\u52a8\u5668\u8fdc\u79bb\u7535\u6e90\u7684\u60c5\u51b5<\/li>\n\n\n\n<li>\u6f6e\u6e7f\u533a\u57df\u548c\u6237\u5916\u5e94\u7528<\/li>\n\n\n\n<li>\u7535\u78c1\u5e72\u6270\uff08EMI\uff09\u6807\u51c6\u4e25\u683c\u7684\u533a\u57df<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u8109\u51b2\u5bbd\u5ea6\u8c03\u5236\uff08PWM\uff09<\/h3>\n\n\n\n<p>\u53e6\u4e00\u65b9\u9762\uff0cPWM\u8c03\u5149\u901a\u8fc7\u5feb\u901f\u5f00\u5173LED\u6765\u63a7\u5236\u4eae\u5ea6\u3002\u901a\u8fc7\u6539\u53d8PWM\u4fe1\u53f7\u7684\u5360\u7a7a\u6bd4\u6765\u8c03\u6574\u4f20\u9012\u7ed9LED\u7684\u5e73\u5747\u529f\u7387\u3002\u8fd9\u79cd\u65b9\u6cd5\u4fdd\u6301\u989c\u8272\u4e00\u81f4\u6027\u4e14\u66f4\u9ad8\u6548\uff0c\u4f7f\u5176\u5728\u8bb8\u591a\u5e94\u7528\u4e2d\u6210\u4e3a\u9996\u9009\u3002PWM\u8c03\u5236\u8109\u51b2\u5bbd\u5ea6\u3002\u5b83\u786e\u4fddLED\u5728\u77ed\u8109\u51b2\u4e2d\u83b7\u5f97\u4e00\u81f4\u7684\u529f\u7387\u3002\u8fd9\u8ba9LED\u4fdd\u6301\u5176\u989c\u8272\u3002\u6b64\u5916\uff0cPWM\u53ef\u4ee5\u8f7b\u677e\u7531\u6570\u5b57\u7cfb\u7edf\u63a7\u5236\u3002\u8fd9\u4f7f\u5176\u4e0e\u73b0\u4ee3\u7535\u5b50\u63a7\u5236\u548c\u667a\u80fd\u7167\u660e\u7cfb\u7edf\u9ad8\u5ea6\u517c\u5bb9\u3002.<\/p>\n\n\n\n<p>PWM\u5728\u4ee5\u4e0b\u9886\u57df\u6709\u5176\u5e94\u7528\u3002.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>LED\u9a71\u52a8\u5668\u8c03\u5149<\/li>\n\n\n\n<li>\u592a\u9633\u80fd\u7535\u6c60\u677f<\/li>\n\n\n\n<li>\u7535\u673a<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u4ec0\u4e48\u662fPWM\u8c03\u5149\uff1f<\/h2>\n\n\n\n<p>PWM\u8c03\u5149\u6d89\u53ca\u4f7f\u7528\u65b9\u6ce2\u4fe1\u53f7\u6765\u63a7\u5236\u4f20\u9012\u7ed9LED\u7684\u529f\u7387\u3002\u4fe1\u53f7\u4ee5\u9ad8\u9891\u5728\u5f00\u548c\u5173\u72b6\u6001\u4e4b\u95f4\u5207\u6362\u3002\u5360\u7a7a\u6bd4\u662f\u4fe1\u53f7\u5904\u4e8e\u5f00\u542f\u72b6\u6001\u7684\u65f6\u95f4\u6bd4\u4f8b\u3002\u5b83\u51b3\u5b9a\u5e73\u5747\u529f\u7387\uff0c\u4ece\u800c\u51b3\u5b9aLED\u7684\u4eae\u5ea6\u3002\u4f8b\u5982\uff0c\u5982\u679c\u5360\u7a7a\u6bd4\u8bbe\u7f6e\u4e3a50%\uff0cLED\u5c06\u6709\u4e00\u534a\u65f6\u95f4\u5f00\u542f\uff0c\u53e6\u4e00\u534a\u65f6\u95f4\u5173\u95ed\uff0c\u4ece\u800c\u5b9e\u73b050%\u7684\u4eae\u5ea6\u3002\u5b83\u5feb\u901f\u5f00\u5173\u3002\u4eba\u773c\u5c06\u5176\u89c6\u4e3a\u8c03\u5149\u6548\u679c\uff0c\u800c\u4e0d\u662f\u95ea\u70c1\u7684\u5149\u3002.<\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c50%\u7684\u5360\u7a7a\u6bd4\u610f\u5473\u7740LED\u6709\u4e00\u534a\u65f6\u95f4\u5f00\u542f\uff0c\u53e6\u4e00\u534a\u65f6\u95f4\u5173\u95ed\uff0c\u4ece\u800c\u5b9e\u73b050%\u7684\u4eae\u5ea6\u3002\u901a\u8fc7\u8c03\u6574\u5360\u7a7a\u6bd4\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u4eae\u5ea6\u7684\u7cbe\u786e\u63a7\u5236\u3002\u6b64\u5916\uff0cPWM\u8c03\u5149\u4e0d\u9650\u4e8e\u7b80\u5355\u7684\u5f00\u5173\u6a21\u5f0f\u3002\u5360\u7a7a\u6bd4\u53ef\u4ee5\u5e73\u6ed1\u53d8\u5316\u3002\u8fd9\u5141\u8bb8\u4eae\u5ea6\u7684\u6e10\u53d8\u3002\u8fd9\u5bf9\u4e8e\u9700\u8981\u5e73\u6ed1\u8c03\u5149\u7684\u5e94\u7528\u975e\u5e38\u6709\u7528\u3002\u8fd9\u4e9b\u5305\u62ec\u5efa\u7b51\u7167\u660e\u6216\u821e\u53f0\u7167\u660e\u3002\u6b64\u5916\uff0c\u5fae\u63a7\u5236\u5668\u53ef\u4ee5\u5b9e\u73b0PWM\u8c03\u5149\u3002\u8fd9\u4f7f\u5176\u9002\u7528\u4e8e\u5404\u79cdLED\u9a71\u52a8\u5668\u8bbe\u8ba1\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"800\" height=\"336\" src=\"https:\/\/boqiled.com\/wp-content\/uploads\/2023\/07\/PWM-Power-Supply.jpg\" alt=\"\" class=\"wp-image-9441\" srcset=\"https:\/\/boqiled.com\/wp-content\/uploads\/2023\/07\/PWM-Power-Supply.jpg 800w, https:\/\/boqiled.com\/wp-content\/uploads\/2023\/07\/PWM-Power-Supply-300x126.jpg 300w, https:\/\/boqiled.com\/wp-content\/uploads\/2023\/07\/PWM-Power-Supply-768x323.jpg 768w, https:\/\/boqiled.com\/wp-content\/uploads\/2023\/07\/PWM-Power-Supply-18x8.jpg 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e3a\u4ec0\u4e48\u4f7f\u7528PWM\u6765\u8c03\u5149LED<\/h2>\n\n\n\n<p>PWM\u7528\u4e8e\u8c03\u5149LED\u662f\u56e0\u4e3a\u5b83\u63d0\u4f9b\u4e86\u51e0\u4e2a\u4f18\u52bf\uff1a<\/p>\n\n\n\n<p>\u2013 <strong>\u6548\u7387<\/strong>\uff1aPWM\u8c03\u5149\u4e0d\u4f1a\u5c06\u529f\u7387\u4ee5\u70ed\u91cf\u5f62\u5f0f\u8017\u6563\uff0c\u4f7f\u5176\u66f4\u8282\u80fd\u3002\u6a21\u62df\u8c03\u5149\u65b9\u6cd5\u53ef\u80fd\u901a\u8fc7\u5c06\u591a\u4f59\u529f\u7387\u8f6c\u5316\u4e3a\u70ed\u91cf\u6765\u6d6a\u8d39\u80fd\u91cf\u3002PWM\u66f4\u7cbe\u786e\u5730\u63a7\u5236\u529f\u7387\u3002\u5b83\u786e\u4fdd\u6700\u5c0f\u7684\u80fd\u91cf\u635f\u5931\u3002\u8fd9\u5728\u4f7f\u7528\u7535\u6c60\u6216\u4fbf\u643a\u5f0f\u7684\u706f\u5177\u4e2d\u81f3\u5173\u91cd\u8981\u3002\u7701\u7535\u5728\u90a3\u91cc\u975e\u5e38\u5173\u952e\u3002.<\/p>\n\n\n\n<p>\u2013 <strong>\u7cbe\u786e\u6027<\/strong>\uff1a\u5b83\u63d0\u4f9b\u5bf9\u4eae\u5ea6\u6c34\u5e73\u7684\u7cbe\u786e\u63a7\u5236\u3002\u7cbe\u7ec6\u8c03\u6574\u5360\u7a7a\u6bd4\u7684\u80fd\u529b\u5141\u8bb8\u5e7f\u6cdb\u7684\u4eae\u5ea6\u8bbe\u7f6e\uff0c\u4ece\u975e\u5e38\u6697\u5230\u5168\u4eae\u3002\u8fd9\u79cd\u7cbe\u786e\u6027\u4f7fPWM\u8c03\u5149\u9002\u7528\u4e8e\u9700\u8981\u7cbe\u786e\u7167\u660e\u63a7\u5236\u7684\u5e94\u7528\uff0c\u5982\u533b\u7597\u8bbe\u5907\u3001\u6444\u5f71\u7167\u660e\u548c\u663e\u793a\u80cc\u5149\u3002.<\/p>\n\n\n\n<p>\u2013 <strong>\u4e00\u81f4\u6027<\/strong>\uff1a\u4fdd\u6301LED\u5149\u7684\u8272\u6e29\u548c\u8d28\u91cf\u3002\u7531\u4e8eLED\u5728\u201c\u5f00\u542f\u201d\u671f\u95f4\u59cb\u7ec8\u4ee5\u5168\u989d\u989d\u5b9a\u7535\u6d41\u8fd0\u884c\uff0c\u8272\u6e29\u4fdd\u6301\u7a33\u5b9a\u3002\u8fd9\u662f\u76f8\u5bf9\u4e8e\u6a21\u62df\u8c03\u5149\u7684\u4e00\u4e2a\u663e\u8457\u4f18\u52bf\uff0c\u6a21\u62df\u8c03\u5149\u5728\u8f83\u4f4e\u7535\u6d41\u6c34\u5e73\u4e0b\u53ef\u80fd\u5bfc\u81f4\u8272\u504f\u3002\u4e00\u81f4\u7684\u989c\u8272\u8d28\u91cf\u5728\u96f6\u552e\u7167\u660e\u548c\u535a\u7269\u9986\u5c55\u793a\u7b49\u5e94\u7528\u4e2d\u81f3\u5173\u91cd\u8981\u3002\u5728\u8fd9\u4e9b\u5730\u65b9\uff0c\u51c6\u786e\u7684\u989c\u8272\u81f3\u5173\u91cd\u8981\u3002.<\/p>\n\n\n\n<p>\u2013 <strong>\u517c\u5bb9\u6027<\/strong>\uff1a\u6613\u4e8e\u4e0e\u6570\u5b57\u63a7\u5236\u548c\u5fae\u63a7\u5236\u5668\u96c6\u6210\u3002\u8bb8\u591a\u6570\u5b57\u8bbe\u5907\u53ef\u4ee5\u751f\u6210PWM\u4fe1\u53f7\u3002\u8fd9\u4e9b\u8bbe\u5907\u5305\u62ec\u5fae\u63a7\u5236\u5668\u3001PLC\uff0c\u751a\u81f3\u4e00\u4e9b\u7b80\u5355\u7684\u5b9a\u65f6\u5668\u3002\u8fd9\u79cd\u517c\u5bb9\u6027\u5141\u8bb8\u8f7b\u677e\u96c6\u6210\u5230\u667a\u80fd\u7167\u660e\u7cfb\u7edf\u548c\u81ea\u52a8\u5316\u63a7\u5236\u8bbe\u7f6e\u4e2d\uff0c\u5b9e\u73b0\u8fdc\u7a0b\u8c03\u5149\u63a7\u5236\u3001\u53ef\u7f16\u7a0b\u7167\u660e\u65f6\u95f4\u8868\u548c\u52a8\u6001\u7167\u660e\u6548\u679c\u7b49\u529f\u80fd\u3002.<\/p>\n\n\n\n<p>\u8fd9\u4e9b\u4f18\u52bf\u4f7fPWM\u6210\u4e3a\u5404\u79cd\u5e94\u7528\u7684\u7406\u60f3\u9009\u62e9\u3002\u8fd9\u4e9b\u5e94\u7528\u4ece\u5bb6\u5ead\u7167\u660e\u5230\u5de5\u4e1a\u548c\u6c7d\u8f66\u7528\u9014\u3002\u4f8b\u5982\uff0c\u5728\u6c7d\u8f66\u4e2d\uff0cPWM\u8c03\u5149\u7528\u4e8e\u4eea\u8868\u677f\u548c\u524d\u706f\u8c03\u5149\u3002\u5b83\u4e5f\u7528\u4e8e\u5185\u90e8\u73af\u5883\u7167\u660e\u3002\u5b83\u5728\u53d8\u5316\u6761\u4ef6\u4e0b\u63d0\u4f9b\u53ef\u9760\u548c\u9ad8\u6548\u7684\u63a7\u5236\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">PWM\u8c03\u5149\u5728LED\u9a71\u52a8\u5668\u4e2d\u5982\u4f55\u5de5\u4f5c\u7684\u6280\u672f\u7ec6\u8282<\/h2>\n\n\n\n<p>LED\u9a71\u52a8\u5668\u4e2d\u7684PWM\u8c03\u5149\u6d89\u53ca\u751f\u6210\u9ad8\u9891\u65b9\u6ce2\u4fe1\u53f7\u3002\u8be5\u4fe1\u53f7\u88ab\u8f93\u5165LED\u9a71\u52a8\u5668\uff0c\u7136\u540e\u9a71\u52a8\u5668\u6839\u636ePWM\u4fe1\u53f7\u7684\u5360\u7a7a\u6bd4\u8c03\u5236\u4f9b\u5e94\u7ed9LED\u7684\u529f\u7387\u3002LED\u9a71\u52a8\u5668\u5145\u5f53\u4e2d\u95f4\u89d2\u8272\uff0c\u786e\u4fddLED\u63a5\u6536\u5230\u6b63\u786e\u7684\u529f\u7387\u91cf\u4ee5\u5b9e\u73b0\u6240\u9700\u7684\u4eae\u5ea6\u3002\u8c03\u5236\u8fc7\u7a0b\u6d89\u53ca\u4ee5\u9ad8\u901f\u5f00\u5173LED\u7684\u7535\u6d41\u3002 \u201c\u5f00\u542f\u201d\u65f6\u95f4\u7684\u957f\u5ea6\u7531PWM\u4fe1\u53f7\u7684\u5360\u7a7a\u6bd4\u8bbe\u5b9a\u3002.<\/p>\n\n\n\n<p>LED\u9a71\u52a8\u5668\u901a\u5e38\u5305\u542b\u4e00\u4e2a\u5fae\u63a7\u5236\u5668\u6216\u4e13\u7528\u7684PWM\u63a7\u5236\u5668IC\uff0c\u7528\u4e8e\u751f\u6210PWM\u4fe1\u53f7\u3002 PWM\u4fe1\u53f7\u7684\u9891\u7387\u88ab\u9009\u62e9\u4e3a\u8db3\u591f\u9ad8\u4ee5\u907f\u514d\u53ef\u89c1\u95ea\u70c1\uff0c\u901a\u5e38\u9ad8\u4e8e200 Hz\u3002\u5728\u6b64\u9891\u7387\u4e0b\uff0c\u5f00\u5173\u8f6c\u6362\u5bf9\u4eba\u773c\u6765\u8bf4\u592a\u5feb\u800c\u65e0\u6cd5\u5bdf\u89c9\uff0c\u4ece\u800c\u4ea7\u751f\u5e73\u6ed1\u7684\u8c03\u5149\u6548\u679c\u3002\u5fae\u63a7\u5236\u5668\u6216PWM\u63a7\u5236\u5668IC\u8c03\u6574\u5360\u7a7a\u6bd4\u3002\u5b83\u6839\u636e\u7528\u6237\u8f93\u5165\u6216\u7f16\u7a0b\u8bbe\u7f6e\u8fdb\u884c\u8c03\u6574\u3002\u8fd9\u5b9e\u73b0\u4e86\u52a8\u6001\u4e14\u54cd\u5e94\u8fc5\u901f\u7684LED\u4eae\u5ea6\u63a7\u5236\u3002.<\/p>\n\n\n\n<p>\u4e3a\u786e\u4fdd\u53ef\u9760\u6027\u80fd\uff0cLED\u9a71\u52a8\u5668\u5fc5\u987b\u8bbe\u8ba1\u4e3a\u5904\u7406LED\u8d1f\u8f7d\u7684\u7279\u5b9a\u7279\u6027\u3002\u8fd9\u5305\u62ecLED\u7684\u6b63\u5411\u7535\u538b\u3002\u8fd8\u5305\u62ec\u5176\u989d\u5b9a\u7535\u6d41\u548c\u70ed\u9700\u6c42\u3002\u9a71\u52a8\u5668\u53ef\u80fd\u5177\u6709\u53cd\u9988\u529f\u80fd\u3002\u5b83\u76d1\u6d4bLED\u7684\u6027\u80fd\u5e76\u8c03\u6574PWM\u4fe1\u53f7\u3002\u8fd9\u5728\u4e0d\u540c\u6761\u4ef6\u4e0b\u4fdd\u6301\u4eae\u5ea6\u548c\u989c\u8272\u4e00\u81f4\u3002\u6b64\u5916\uff0cLED\u9a71\u52a8\u5668\u53ef\u80fd\u5177\u6709\u4fdd\u62a4\u529f\u80fd\u3002\u8fd9\u4e9b\u5305\u62ec\u8fc7\u6d41\u4fdd\u62a4\u3001\u70ed\u5173\u65ad\u548c\u77ed\u8def\u4fdd\u62a4\u3002\u5b83\u4eec\u4fdd\u62a4LED\u548c\u9a71\u52a8\u5668\u7535\u8def\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"LED\u8c03\u5149\uff1aPWM\u4e0e\u7535\u6d41\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/zU2Oxyfi2Q4?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">PWM\u4f5c\u4e3a\u8c03\u5149\u4fe1\u53f7\uff1a\u5360\u7a7a\u6bd4\u548c\u9891\u7387<\/h2>\n\n\n\n<p>PWM\u4fe1\u53f7\u7684\u5360\u7a7a\u6bd4\u662f\u5f00\u542f\u65f6\u95f4\u4e0e\u4fe1\u53f7\u603b\u5468\u671f\u7684\u6bd4\u7387\u3002\u4f8b\u5982\uff0c\u5360\u7a7a\u6bd4\u4e3a25%\u610f\u5473\u7740\u4fe1\u53f7\u572825%\u7684\u65f6\u95f4\u5185\u5f00\u542f\uff0c\u572875%\u7684\u65f6\u95f4\u5185\u5173\u95ed\u3002\u8c03\u6574\u5360\u7a7a\u6bd4\u4f1a\u6539\u53d8\u4f20\u9012\u7ed9LED\u7684\u5e73\u5747\u529f\u7387\uff0c\u4ece\u800c\u63a7\u5236\u5176\u4eae\u5ea6\u3002\u5360\u7a7a\u6bd4\u7684\u7075\u6d3b\u6027\u5141\u8bb8\u5e7f\u6cdb\u7684\u4eae\u5ea6\u7ea7\u522b\u3002\u5b83\u4eec\u4ece\u51e0\u4e4e\u5173\u95ed\u5230\u5b8c\u5168\u5f00\u542f\u3002\u5b83\u63d0\u4f9b\u7cbe\u786e\u4e14\u5e73\u6ed1\u7684\u8c03\u5149\u63a7\u5236\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"251\" height=\"46\" src=\"https:\/\/boqiled.com\/wp-content\/uploads\/2023\/07\/on-time-of-PWM-duty-cycle-signal.jpg\" alt=\"\" class=\"wp-image-9438\" srcset=\"https:\/\/boqiled.com\/wp-content\/uploads\/2023\/07\/on-time-of-PWM-duty-cycle-signal.jpg 251w, https:\/\/boqiled.com\/wp-content\/uploads\/2023\/07\/on-time-of-PWM-duty-cycle-signal-18x3.jpg 18w\" sizes=\"(max-width: 251px) 100vw, 251px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"503\" height=\"174\" src=\"https:\/\/boqiled.com\/wp-content\/uploads\/2023\/07\/PWM-duty-cycle.jpg\" alt=\"\" class=\"wp-image-9439\" srcset=\"https:\/\/boqiled.com\/wp-content\/uploads\/2023\/07\/PWM-duty-cycle.jpg 503w, https:\/\/boqiled.com\/wp-content\/uploads\/2023\/07\/PWM-duty-cycle-300x104.jpg 300w, https:\/\/boqiled.com\/wp-content\/uploads\/2023\/07\/PWM-duty-cycle-18x6.jpg 18w\" sizes=\"(max-width: 503px) 100vw, 503px\" \/><\/figure>\n\n\n\n<p>PWM\u4fe1\u53f7\u7684\u9891\u7387\u4e5f\u81f3\u5173\u91cd\u8981\u3002\u66f4\u9ad8\u7684\u9891\u7387\u4f7f\u8c03\u5149\u66f4\u5e73\u6ed1\u5e76\u907f\u514d\u95ea\u70c1\u3002\u8fd9\u5728\u6709\u8fd0\u52a8\u7684\u5e94\u7528\u4e2d\u5c24\u5176\u91cd\u8981\uff0c\u4f8b\u5982\u89c6\u9891\u5f55\u5236\u3002\u5efa\u8bae\u4f7f\u752825 kHz\u4ee5\u4e0a\u7684\u9891\u7387\u4ee5\u5b9e\u73b0\u65e0\u95ea\u70c1\u8c03\u5149\u3002\u5728\u8fd9\u4e9b\u9ad8\u9891\u7387\u4e0b\uff0cPWM\u4fe1\u53f7\u5f00\u5173\u5982\u6b64\u8fc5\u901f\u3002\u8fd9\u79cd\u95ea\u70c1\u592a\u5feb\uff0c\u4eba\u7c7b\u548c\u9ad8\u901f\u6444\u50cf\u673a\u90fd\u65e0\u6cd5\u770b\u5230\u3002\u8fd9\u5728\u4e13\u4e1a\u7167\u660e\u8bbe\u7f6e\u4e2d\u81f3\u5173\u91cd\u8981\u3002\u95ea\u70c1\u4f1a\u635f\u5bb3\u89c6\u9891\u8d28\u91cf\u548c\u89c2\u770b\u8005\u8212\u9002\u5ea6\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"219\" height=\"73\" src=\"https:\/\/boqiled.com\/wp-content\/uploads\/2023\/07\/PWM-frequency.jpg\" alt=\"\" class=\"wp-image-9440\" srcset=\"https:\/\/boqiled.com\/wp-content\/uploads\/2023\/07\/PWM-frequency.jpg 219w, https:\/\/boqiled.com\/wp-content\/uploads\/2023\/07\/PWM-frequency-18x6.jpg 18w\" sizes=\"(max-width: 219px) 100vw, 219px\" \/><\/figure>\n\n\n\n<p>\u5728\u5b9e\u8df5\u4e2d\uff0cPWM\u9891\u7387\u7684\u9009\u62e9\u53d6\u51b3\u4e8eLED\u7684\u9700\u6c42\u53ca\u5176\u4f7f\u7528\u573a\u666f\u3002\u4f8b\u5982\uff0c\u5728\u5efa\u7b51\u7167\u660e\u4e2d\uff0c\u7ea61 kHz\u7684\u9891\u7387\u53ef\u80fd\u8db3\u4ee5\u907f\u514d\u53ef\u89c1\u95ea\u70c1\u3002\u4f46\u662f\uff0c\u5728\u9ad8\u6027\u80fd\u89c6\u9891\u7167\u660e\u4e2d\uff0c\u53ef\u80fd\u9700\u898125 kHz\u6216\u66f4\u9ad8\u7684\u9891\u7387\u4ee5\u5b9e\u73b0\u5b8c\u7f8e\u6027\u80fd\u3002\u5360\u7a7a\u6bd4\u548c\u9891\u7387\u5fc5\u987b\u4ed4\u7ec6\u6821\u51c6\u3002\u5b83\u4eec\u5e73\u8861\u4eae\u5ea6\u3001\u6548\u7387\u548c\u65e0\u95ea\u70c1\u64cd\u4f5c\u3002\u56e0\u7d20\u5305\u62ecLED\u7684\u54cd\u5e94\u65f6\u95f4\u548c\u7cfb\u7edf\u7684\u70ed\u7279\u6027\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">PWM\u4f5c\u4e3aLED\u9a71\u52a8\u5668\u8f93\u51fa<\/h2>\n\n\n\n<p>\u5728\u57fa\u4e8ePWM\u7684LED\u9a71\u52a8\u5668\u4e2d\uff0c\u8f93\u51fa\u662f\u4e0ePWM\u4fe1\u53f7\u5bf9\u5e94\u7684\u8c03\u5236\u7535\u6d41\u3002 LED\u9a71\u52a8\u5668\u5c06PWM\u4fe1\u53f7\u8f6c\u6362\u4e3a\u76f8\u5e94\u7684\u7535\u6d41\uff0c\u7136\u540e\u9a71\u52a8LED\u3002\u6b64\u65b9\u6cd5\u786e\u4fddLED\u83b7\u5f97\u6b63\u786e\u7684\u7535\u6d41\u91cf\u3002\u8fd9\u4fdd\u6301\u5176\u4eae\u5ea6\u548c\u6548\u7387\u3002\u8c03\u5236\u7535\u6d41\u5141\u8bb8\u5bf9LED\u7684\u5149\u8f93\u51fa\u8fdb\u884c\u7cbe\u786e\u63a7\u5236\u3002\u8fd9\u786e\u4fdd\u4e86\u5728\u5e7f\u6cdb\u7684\u4eae\u5ea6\u7ea7\u522b\u4e2d\u4fdd\u6301\u4e00\u81f4\u7684\u6027\u80fd\u3002.<\/p>\n\n\n\n<p>LED\u9a71\u52a8\u5668\u901a\u8fc7\u5feb\u901f\u5f00\u5173LED\u7535\u6d41\u5e76\u4e0ePWM\u4fe1\u53f7\u540c\u6b65\u6765\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002\u5728\u201c\u5f00\u542f\u201d\u671f\u95f4\uff0cLED\u63a5\u6536\u5168\u7535\u6d41\uff0c\u4ea7\u751f\u5176\u6700\u5927\u5149\u8f93\u51fa\u3002\u5728\u201c\u5173\u95ed\u201d\u671f\u95f4\uff0cLED\u4e0d\u63a5\u6536\u7535\u6d41\uff0c\u5bfc\u81f4\u65e0\u5149\u8f93\u51fa\u3002\u9a71\u52a8\u5668\u8c03\u6574\u201c\u5f00\u542f\u201d\u4e0e\u201c\u5173\u95ed\u201d\u5468\u671f\u7684\u6bd4\u7387\uff08\u5360\u7a7a\u6bd4\uff09\u3002\u6b64\u63a7\u5236\u8bbe\u5b9a\u5e73\u5747\u7535\u6d41\uff0c\u4ece\u800c\u8bbe\u5b9aLED\u7684\u5e73\u5747\u5149\u8f93\u51fa\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"787\" height=\"516\" src=\"https:\/\/boqiled.com\/wp-content\/uploads\/2023\/07\/PWM-signal-PWM-output-and-CCR-output.jpg\" alt=\"\" class=\"wp-image-9442\" srcset=\"https:\/\/boqiled.com\/wp-content\/uploads\/2023\/07\/PWM-signal-PWM-output-and-CCR-output.jpg 787w, https:\/\/boqiled.com\/wp-content\/uploads\/2023\/07\/PWM-signal-PWM-output-and-CCR-output-300x197.jpg 300w, https:\/\/boqiled.com\/wp-content\/uploads\/2023\/07\/PWM-signal-PWM-output-and-CCR-output-768x504.jpg 768w, https:\/\/boqiled.com\/wp-content\/uploads\/2023\/07\/PWM-signal-PWM-output-and-CCR-output-18x12.jpg 18w\" sizes=\"(max-width: 787px) 100vw, 787px\" \/><\/figure>\n\n\n\n<p>\u8fd9\u79cd\u65b9\u6cd5\u6709\u51e0\u4e2a\u4f18\u70b9\u3002\u9996\u5148\uff0c\u5b83\u5141\u8bb8LED\u5728\u201c\u5f00\u542f\u201d\u671f\u95f4\u4ee5\u5168\u6548\u7387\u8fd0\u884c\uff0c\u6700\u5c0f\u5316\u80fd\u91cf\u635f\u5931\u548c\u70ed\u91cf\u4ea7\u751f\u3002\u5176\u6b21\uff0c\u5b83\u4fdd\u6301LED\u7684\u989c\u8272\u4e00\u81f4\u6027\uff0c\u56e0\u4e3aLED\u5728\u201c\u5f00\u542f\u201d\u671f\u95f4\u59cb\u7ec8\u4ee5\u5176\u989d\u5b9a\u7535\u6d41\u8fd0\u884c\u3002\u7b2c\u4e09\uff0c\u5b83\u63d0\u4f9b\u5bf9LED\u4eae\u5ea6\u7684\u7cbe\u786e\u63a7\u5236\u3002\u8fd9\u5141\u8bb8\u5e73\u6ed1\u8c03\u5149\u548c\u52a8\u6001\u7167\u660e\u6548\u679c\u3002\u6b64\u5916\uff0c\u57fa\u4e8ePWM\u7684\u9a71\u52a8\u5668\u53ef\u4ee5\u8f7b\u677e\u8fde\u63a5\u5230\u6570\u5b57\u63a7\u5236\u7cfb\u7edf\u3002\u8fd9\u5141\u8bb8\u5bf9\u7167\u660e\u8bbe\u7f6e\u8fdb\u884c\u53ef\u7f16\u7a0b\u548c\u8fdc\u7a0b\u63a7\u5236\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">PWM\u8c03\u5149\u4e0e\u5176\u4ed6\u8c03\u5149\u65b9\u6cd5\u7684\u6bd4\u8f83<\/h2>\n\n\n\n<p>PWM\u8c03\u5149\u6bd4\u5176\u4ed6\u65b9\u6cd5\u6709\u51e0\u4e2a\u4f18\u70b9\uff1a<\/p>\n\n\n\n<p>\u2013 <strong>\u6a21\u62df\u8c03\u5149<\/strong>\uff1a\u6d89\u53ca\u8c03\u8282\u4f9b\u5e94\u7ed9LED\u7684\u7535\u6d41\u3002\u867d\u7136\u7b80\u5355\uff0c\u4f46\u53ef\u80fd\u5bfc\u81f4\u8272\u504f\u4e14\u6548\u7387\u8f83\u4f4e\u3002\u6a21\u62df\u8c03\u5149\u9010\u6e10\u964d\u4f4e\u7535\u6d41\u3002\u8fd9\u53ef\u80fd\u5bfc\u81f4LED\u4ee5\u4e0d\u540c\u5f3a\u5ea6\u53d1\u5149\uff0c\u5e76\u53ef\u80fd\u6539\u53d8\u5176\u989c\u8272\u3002\u6b64\u65b9\u6cd5\u4e5f\u503e\u5411\u4e8e\u4ee5\u70ed\u91cf\u5f62\u5f0f\u8017\u6563\u66f4\u591a\u529f\u7387\uff0c\u964d\u4f4e\u7cfb\u7edf\u6574\u4f53\u6548\u7387\u3002.<\/p>\n\n\n\n<p>\u2013 <strong>\u76f8\u4f4d\u5207\u5272\u8c03\u5149<\/strong>\uff1a\u7528\u4e8e\u4ea4\u6d41\u4f9b\u7535\u7684LED\u9a71\u52a8\u5668\uff0c\u901a\u8fc7\u5207\u5272\u4ea4\u6d41\u6ce2\u5f62\u6765\u964d\u4f4e\u529f\u7387\u3002\u5b83\u53ef\u80fd\u5f15\u5165\u95ea\u70c1\uff0c\u5e76\u4e0e\u67d0\u4e9bLED\u9a71\u52a8\u5668\u4ea7\u751f\u517c\u5bb9\u6027\u95ee\u9898\u3002\u76f8\u4f4d\u5207\u5272\u8c03\u5149\u901a\u8fc7\u5207\u65ad\u4ea4\u6d41\u6ce2\u5f62\u7684\u4e00\u90e8\u5206\uff0c\u6709\u6548\u964d\u4f4e\u4f20\u9012\u7ed9LED\u7684\u5e73\u5747\u529f\u7387\u3002\u6b64\u65b9\u6cd5\u53ef\u80fd\u5bfc\u81f4\u4e0e\u67d0\u4e9bLED\u9a71\u52a8\u5668\u7684\u517c\u5bb9\u6027\u95ee\u9898\u3002\u8fd9\u4f1a\u5bfc\u81f4\u95ea\u70c1\u548c\u6027\u80fd\u4e0d\u4f73\u3002\u5b83\u8fd8\u9700\u8981\u66f4\u590d\u6742\u7684\u7535\u8def\u6765\u5b9e\u73b0\uff0c\u8fd9\u53ef\u80fd\u589e\u52a0\u7167\u660e\u7cfb\u7edf\u7684\u6210\u672c\u548c\u590d\u6742\u6027\u3002.<\/p>\n\n\n\n<p>PWM\u8c03\u5149\u66f4\u9ad8\u6548\u3002\u5b83\u8fd8\u63d0\u4f9b\u7cbe\u786e\u63a7\u5236\u5e76\u4fdd\u6301\u989c\u8272\u4e00\u81f4\u3002\u5b83\u5728\u8bb8\u591a\u5e94\u7528\u4e2d\u8868\u73b0\u66f4\u597d\u3002PWM\u8c03\u5149\u901a\u8fc7\u9ad8\u9891\u4fe1\u53f7\u8c03\u5236\u529f\u7387\u3002\u5b83\u907f\u514d\u4e86\u6a21\u62df\u548c\u76f8\u4f4d\u5207\u5272\u8c03\u5149\u7684\u95ee\u9898\u3002PWM\u8c03\u5149\u662f\u4e00\u79cd\u66f4\u53ef\u9760\u4e14\u7075\u6d3b\u7684\u89e3\u51b3\u65b9\u6848\u3002\u6b64\u5916\uff0cPWM\u8c03\u5149\u53ef\u4e0e\u6570\u5b57\u63a7\u5236\u7cfb\u7edf\u914d\u5408\u4f7f\u7528\u3002\u5b83\u652f\u6301\u53ef\u7f16\u7a0b\u8c03\u5149\u66f2\u7ebf\u3001\u8fdc\u7a0b\u63a7\u5236\u4ee5\u53ca\u4e0e\u667a\u80fd\u5bb6\u5c45\u7cfb\u7edf\u96c6\u6210\u7b49\u9ad8\u7ea7\u529f\u80fd\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5e02\u573a\u4e0a\u5b9e\u73b0\u7684PWM\u8c03\u5149\u9a71\u52a8\u5668<\/h2>\n\n\n\n<p>PWM\u8c03\u5149\u9a71\u52a8\u5668\u5728LED\u7167\u660e\u4e2d\u65e5\u76ca\u91cd\u8981\u3002\u7136\u800c\uff0c\u7406\u89e3\u5b9e\u73b0PWM\u8c03\u5149\u9a71\u52a8\u5668\u6709\u4e24\u79cd\u4e0d\u540c\u65b9\u6cd5\u81f3\u5173\u91cd\u8981\u3002\u8ba9\u6211\u4eec\u63a2\u8ba8\u8fd9\u4e9b\u65b9\u6cd5\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f2aPWM\u8c03\u5149<\/h3>\n\n\n\n<p>\u4f2aPWM\u8c03\u5149\u65b9\u6cd5\u6d89\u53ca\u5c06PWM\u8f93\u5165\u8f6c\u6362\u4e3a\u6a21\u62df\u63a7\u5236\u4fe1\u53f7\u3002\u6b64\u65b9\u6cd5\u5728\u9a71\u52a8\u5668\u5185\u4f7f\u7528\u7535\u963b-\u7535\u5bb9\uff08RC\uff09\u6ee4\u6ce2\u5668\u3002RC\u6ee4\u6ce2\u5668\u5c06PWM\u4fe1\u53f7\u5e73\u6ed1\u4e3a\u4e0e\u5360\u7a7a\u6bd4\u6210\u6bd4\u4f8b\u7684\u76f4\u6d41\u7535\u538b\u3002\u4f2aPWM\u8c03\u5149\u7684\u4e00\u4e2a\u4f18\u70b9\u662f\u5b83\u65e0\u566a\u58f0\uff0c\u56e0\u4e3aLED\u7535\u6d41\u5728\u8f93\u51fa\u7aef\u4fdd\u6301\u8fde\u7eed\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"284\" src=\"https:\/\/boqiled.com\/wp-content\/uploads\/2024\/06\/image-5.png\" alt=\"\" class=\"wp-image-12675\" srcset=\"https:\/\/boqiled.com\/wp-content\/uploads\/2024\/06\/image-5.png 900w, https:\/\/boqiled.com\/wp-content\/uploads\/2024\/06\/image-5-300x95.png 300w, https:\/\/boqiled.com\/wp-content\/uploads\/2024\/06\/image-5-768x242.png 768w, https:\/\/boqiled.com\/wp-content\/uploads\/2024\/06\/image-5-18x6.png 18w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">\u6765\u81ea\u660e\u7eacHLG\u7cfb\u5217\u4ea7\u54c1\u6570\u636e\u8868\u7684PWM\u8c03\u5149\u63cf\u8ff0<\/figcaption><\/figure>\n\n\n\n<p>\u7136\u800c\uff0c\u6b64\u65b9\u6cd5\u6709\u663e\u8457\u7f3a\u70b9\u3002PWM\u4fe1\u53f7\u7684\u5cf0\u503c\u5fc5\u987b\u4e3a10V\u4ee5\u786e\u4fdd\u51c6\u786e\u6027\uff0c\u8fd9\u53ef\u80fd\u662f\u4e00\u4e2a\u9650\u5236\u3002\u6b64\u5916\uff0cRC\u53c2\u6570\u9650\u5236\u4e86PWM\u4fe1\u53f7\u7684\u9891\u7387\u3002\u8fd9\u964d\u4f4e\u4e86\u8c03\u5149\u7cfb\u7edf\u7684\u7075\u6d3b\u6027\u548c\u6027\u80fd\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u771fPWM\u8c03\u5149<\/h3>\n\n\n\n<p>\u5728\u771f\u5b9ePWM\u8c03\u5149\u4e2d\uff0cLED\u7535\u6d41\u4ee5\u6307\u5b9a\u9891\u7387\u548c\u5360\u7a7a\u6bd4\u5f00\u5173\u3002\u9a71\u52a8\u5668\u5185\u90e8\u7684\u5fae\u63a7\u5236\u5668\uff08MCU\uff09\u68c0\u6d4bPWM\u4fe1\u53f7\u7684\u5cf0\u503c\u7535\u538b\uff0c\u5b9e\u73b0\u7cbe\u786e\u63a7\u5236\u3002\u771f\u5b9ePWM\u8c03\u5149\u652f\u6301\u66f4\u5e7f\u6cdb\u7684PWM\u9891\u7387\u8303\u56f4\uff0c\u5e76\u4fdd\u6301LED\u8f93\u51fa\u7684\u767d\u70b9\u3002\u5b83\u8fd8\u9002\u5e94\u66f4\u9ad8\u7684\u53c2\u8003\u7535\u538b\uff0c\u51cf\u5c11\u504f\u79fb\u8bef\u5dee\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"546\" src=\"https:\/\/boqiled.com\/wp-content\/uploads\/2024\/06\/image-6.png\" alt=\"\" class=\"wp-image-12676\" srcset=\"https:\/\/boqiled.com\/wp-content\/uploads\/2024\/06\/image-6.png 800w, https:\/\/boqiled.com\/wp-content\/uploads\/2024\/06\/image-6-300x205.png 300w, https:\/\/boqiled.com\/wp-content\/uploads\/2024\/06\/image-6-768x524.png 768w, https:\/\/boqiled.com\/wp-content\/uploads\/2024\/06\/image-6-18x12.png 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">\u7f16\u7a0b\u8f6f\u4ef6\u754c\u9762<\/figcaption><\/figure>\n\n\n\n<p>\u4f8b\u5982\uff0c\u6240\u6709boqi\u9a71\u52a8\u5668\u90fd\u96c6\u6210MCU\u4ee5\u4fc3\u8fdb\u771f\u6b63\u7684PWM\u8c03\u5149\u3002\u8fd9\u4f7f\u5176\u9a71\u52a8\u5668\u80fd\u591f\u63a5\u53d7\u4ece3.8V\u523010V\u7684\u5e7f\u6cdbPWM\u4fe1\u53f7\u7535\u538b\uff0c\u4f7f\u5176\u517c\u5bb9\u5404\u79cdPWM\u4fe1\u53f7\uff0c\u5982\u5e38\u7528\u76845V PWM\u4fe1\u53f7\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"372\" src=\"https:\/\/boqiled.com\/wp-content\/uploads\/2024\/06\/image-7.png\" alt=\"\" class=\"wp-image-12677\" srcset=\"https:\/\/boqiled.com\/wp-content\/uploads\/2024\/06\/image-7.png 800w, https:\/\/boqiled.com\/wp-content\/uploads\/2024\/06\/image-7-300x140.png 300w, https:\/\/boqiled.com\/wp-content\/uploads\/2024\/06\/image-7-768x357.png 768w, https:\/\/boqiled.com\/wp-content\/uploads\/2024\/06\/image-7-18x8.png 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">\u6765\u81eaLED\u9a71\u52a8\u5668\u6570\u636e\u8868\u7684\u8c03\u5149\u63cf\u8ff0<\/figcaption><\/figure>\n\n\n\n<p>\u7528\u6237\u9700\u8981\u5728\u9a71\u52a8\u5668\u7f16\u7a0b\u8f6f\u4ef6\u4e2d\u9009\u62e9PWM\u8c03\u5149\u6a21\u5f0f\u4ee5\u5229\u7528\u6b64\u529f\u80fd\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7ed3\u8bba<\/h2>\n\n\n\n<p>\u603b\u4e4b\uff0cPWM\u8c03\u5149\u662f\u63a7\u5236LED\u4eae\u5ea6\u7684\u6709\u6548\u4e14\u9ad8\u6548\u7684\u65b9\u6cd5\u3002\u5176\u7cbe\u786e\u6027\u548c\u9002\u5e94\u6027\u4f7f\u5176\u6210\u4e3a\u5404\u79cd\u5e94\u7528\u4e2d\u7684\u9996\u9009\u3002\u7406\u89e3\u5176\u673a\u5236\u548c\u4f18\u52bf\u6709\u52a9\u4e8e\u4e3a\u60a8\u7684\u9700\u6c42\u9009\u62e9\u6b63\u786e\u7684\u8c03\u5149\u89e3\u51b3\u65b9\u6848\u3002\u9009\u62e9\u50cfboqi\u8fd9\u6837\u7684\u53ef\u9760\u4f9b\u5e94\u5546\u3002\u4ed6\u4eec\u786e\u4fdd\u60a8\u83b7\u5f97\u9ad8\u8d28\u91cf <a href=\"https:\/\/boqiled.com\/products\/\" data-type=\"URL\" data-id=\"https:\/\/boqiled.com\/products\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u53ef\u8c03\u5149LED\u9a71\u52a8\u5668<\/a>. \u3002\u9a71\u52a8\u5668\u63d0\u4f9b\u5353\u8d8a\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002.<\/p>","protected":false},"excerpt":{"rendered":"<p>Pulse Width Modulation (PWM) dimming is a popular technique used to control the brightness of LEDs. It is widely used due to its efficiency and ability to provide precise dimming control. This article explores PWM dimming, its advantages, technical details, and how it compares to other dimming methods. 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