{"id":5118,"date":"2024-11-05T14:03:37","date_gmt":"2024-11-05T06:03:37","guid":{"rendered":"https:\/\/bo-qi.com\/?p=5118"},"modified":"2026-01-04T18:27:12","modified_gmt":"2026-01-04T10:27:12","slug":"what-is-pwm-dimming-a-beginners-guide-to-dimming","status":"publish","type":"post","link":"https:\/\/bo-qi.com\/zh\/what-is-pwm-dimming-a-beginners-guide-to-dimming\/","title":{"rendered":"\u4ec0\u4e48\u662fPWM\u8c03\u5149\uff1f\u8c03\u5149\u5165\u95e8\u6307\u5357"},"content":{"rendered":"<p>PWM\u8c03\u5149\uff0c\u5373\u8109\u51b2\u5bbd\u5ea6\u8c03\u5236\u8c03\u5149\uff0c\u662f\u4e00\u79cd\u901a\u8fc7\u5feb\u901f\u5f00\u5173\u5149\u6e90\u6765\u63a7\u5236LED\u53ca\u5176\u4ed6\u7167\u660e\u7cfb\u7edf\u4eae\u5ea6\u7684\u65b9\u6cd5\u3002\u8be5\u6280\u672f\u4e0d\u4ec5\u80fd\u7cbe\u786e\u63a7\u5236\u4eae\u5ea6\uff0c\u8fd8\u80fd\u786e\u4fdd\u80fd\u6e90\u6548\u7387\u5e76\u4fdd\u6301\u8272\u5f69\u8d28\u91cf\u3002 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https:\/\/bo-qi.com\/wp-content\/uploads\/2024\/11\/image-8-18x8.png 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>PWM\u8c03\u5149\u56e0\u5176\u4eae\u5ea6\u63a7\u5236\u7684\u7cbe\u51c6\u5ea6\u548c\u9ad8\u6548\u7387\u800c\u5907\u53d7\u9752\u7750\u3002\u4e0e\u5176\u4ed6\u76f4\u63a5\u964d\u4f4e\u7535\u6d41\u6216\u7535\u538b\u7684\u65b9\u6cd5\u4e0d\u540c\uff0cPWM\u5728\u4fdd\u6301\u7535\u6d41\u7a33\u5b9a\u7684\u540c\u65f6\uff0c\u901a\u8fc7\u63a7\u5236LED\u5728\u7279\u5b9a\u65f6\u95f4\u6bb5\u5185\u7684\u5bfc\u901a\u9891\u7387\u6765\u8c03\u8282\u4eae\u5ea6\u3002 \u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u5b83\u80fd\u591f\u6709\u6548\u5730\u201c\u8c03\u6697\u201d\u5149\u8f93\u51fa\uff0c\u800c\u4e0d\u4f1a\u5bfc\u81f4 LED \u7269\u7406\u4eae\u5ea6\u964d\u4f4e\u6216\u8fc7\u70ed\u3002\u7531\u4e8e PWM 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class=\"wp-block-heading\">PWM\u8c03\u5149\u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n\n\n\n<p>PWM\u7684\u5de5\u4f5c\u539f\u7406\u662f\u8ba9LED\u5728\u4eae\u548c\u706d\u4e24\u79cd\u72b6\u6001\u4e4b\u95f4\u8fdb\u884c\u6781\u5feb\u901f\u7684\u5207\u6362\u3002\u8fd9\u79cd\u5f00\/\u5173\u6a21\u5f0f\u53d1\u751f\u5f97\u975e\u5e38\u5feb\uff0c\u4ee5\u81f3\u4e8e\u4eba\u773c\u5c06\u5176\u611f\u77e5\u4e3a\u8fde\u7eed\u7684\u5149\u7ebf\uff0c\u800c\u4e0d\u4f1a\u4ea7\u751f\u95ea\u70c1\u611f\u3002 LED \u5728\u4e00\u4e2a\u5468\u671f\u5185\u4fdd\u6301\u70b9\u4eae\u7684\u65f6\u95f4\uff08\u5373\u5360\u7a7a\u6bd4\uff09\u51b3\u5b9a\u4e86\u5176\u4eae\u5ea6\u3002100% \u7684\u5360\u7a7a\u6bd4\u610f\u5473\u7740 LED \u6301\u7eed\u70b9\u4eae\uff0c\u63d0\u4f9b\u6700\u5927\u4eae\u5ea6\u3002\u800c\u5728 50% \u7684\u5360\u7a7a\u6bd4\u4e0b\uff0cLED \u4ec5\u6709\u4e00\u534a\u65f6\u95f4\u5904\u4e8e\u70b9\u4eae\u72b6\u6001\uff0c\u56e0\u6b64\u5149\u7ebf\u4f1a\u53d8\u6697\u3002.<\/p>\n\n\n\n<div class=\"wp-block-columns 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src=\"https:\/\/bo-qi.com\/wp-content\/uploads\/2024\/11\/image-12.png\" alt=\"\u56fe 12\" class=\"wp-image-5160\" srcset=\"https:\/\/bo-qi.com\/wp-content\/uploads\/2024\/11\/image-12.png 251w, https:\/\/bo-qi.com\/wp-content\/uploads\/2024\/11\/image-12-18x3.png 18w\" sizes=\"(max-width: 251px) 100vw, 251px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p>\u8fd9\u79cd\u5f00\u5173\u9891\u7387\u4ee5\u8d6b\u5179\uff08Hz\uff09\u4e3a\u5355\u4f4d\uff0c\u4f1a\u5f71\u54cd\u8c03\u5149\u6548\u679c\u7684\u660e\u663e\u7a0b\u5ea6\u3002\u5728\u8f83\u4f4e\u7684\u9891\u7387\u4e0b\uff08\u4f8b\u5982 100Hz \u81f3 2kHz \u4e4b\u95f4\uff09\uff0c\u5f00\u5173\u8fc7\u7a0b\u53ef\u80fd\u4f1a\u8868\u73b0\u4e3a\u95ea\u70c1\uff0c\u8fd9\u53ef\u80fd\u4f1a\u5bfc\u81f4\u90e8\u5206\u4eba\u51fa\u73b0\u773c\u75b2\u52b3\u3002 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\u603b\u4f53\u800c\u8a00\uff0cPWM\u8c03\u5149\u4ecd\u662f\u4e00\u9879\u6709\u76ca\u7684\u6280\u672f\uff0c\u4f46\u5bf9\u4e8e\u5177\u6709\u7279\u5b9a\u654f\u611f\u6027\u7684\u4eba\u7fa4\uff0c\u91c7\u53d6\u9884\u9632\u63aa\u65bd\u6709\u52a9\u4e8e\u4f7f\u5176\u4f7f\u7528\u4f53\u9a8c\u66f4\u52a0\u8212\u9002\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6a21\u62df\u8c03\u5149\u548cPWM\u8c03\u5149\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/h2>\n\n\n\n<p>\u6a21\u62df\u8c03\u5149\uff0c\u4e5f\u79f0\u4e3a\u76f4\u6d41\u8c03\u5149\uff0c\u662f\u901a\u8fc7\u76f4\u63a5\u8c03\u8282\u6d41\u7ecfLED\u7684\u7535\u6d41\u6765\u5b9e\u73b0\u4eae\u5ea6\u63a7\u5236\u7684\u3002\u968f\u7740\u76f4\u6d41\u7535\u6d41\u7684\u51cf\u5c0f\uff0cLED\u7684\u5149\u8f93\u51fa\u4e5f\u4f1a\u6210\u6bd4\u4f8b\u5730\u964d\u4f4e\u3002\u8fd9\u662f\u4e00\u79cd\u66f4\u7b80\u5355\u7684\u8c03\u5149\u65b9\u5f0f\uff0c\u4e14\u80fd\u907f\u514d\u4efb\u4f55\u5f62\u5f0f\u7684\u95ea\u70c1\u3002 \u7136\u800c\uff0c\u7535\u6d41\u7684\u9010\u6e10\u51cf\u5c0f\u4f1a\u5f71\u54cdLED\u706f\u5149\u7684\u8272\u6e29\uff0c\u5bfc\u81f4\u4eae\u5ea6\u964d\u4f4e\u65f6\u706f\u5149\u663e\u5f97\u66f4\u6696\u3002.<\/p>\n\n\n\n<p>\u76f8\u6bd4\u4e4b\u4e0b\uff0c, <strong>PWM\u8c03\u5149\u5728\u4fdd\u6301\u7535\u6d41\u6c34\u5e73\u4e0d\u53d8\u7684\u540c\u65f6\uff0c\u901a\u8fc7\u8c03\u6574\u5360\u7a7a\u6bd4\uff08\u5373LED\u5728\u6bcf\u4e2a\u5468\u671f\u5185\u4fdd\u6301\u5bfc\u901a\u7684\u65f6\u95f4\u957f\u5ea6\uff09\u6765\u5b9e\u73b0\u8c03\u5149\u3002.<\/strong> PWM \u7684\u6570\u5b57\u8c03\u5149\u65b9\u6cd5\u80fd\u591f\u4fdd\u6301 LED \u7684\u8272\u6e29\uff0c\u4f7f\u5176\u5728\u4e0d\u540c\u4eae\u5ea6\u7ea7\u522b\u4e0b\u4fdd\u6301\u4e00\u81f4\u3002\u8fd9\u4e00\u7279\u70b9\u4f7f\u5f97 PWM \u66f4\u9002\u5408\u4e8e\u5bf9\u8272\u5f69\u51c6\u786e\u6027\u8981\u6c42\u6781\u9ad8\u7684\u5e94\u7528\u573a\u666f\uff0c\u4f8b\u5982\u663e\u793a\u5c4f\u3001\u533b\u7597\u8bbe\u5907\u548c\u4e13\u4e1a\u7167\u660e\u7cfb\u7edf\u3002 \u6a21\u62df\u8c03\u5149\u901a\u5e38\u7528\u4e8e\u4f18\u5148\u8003\u8651\u6210\u672c\u548c\u7b80\u4fbf\u6027\u7684\u573a\u5408\uff0c\u800cPWM\u5219\u56e0\u80fd\u5b9e\u73b0\u66f4\u7cbe\u786e\u7684\u63a7\u5236\u548c\u66f4\u9ad8\u7684\u8272\u5f69\u8fd8\u539f\u5ea6\u800c\u88ab\u9009\u7528\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u76f4\u6d41\u8c03\u5149\u548cPWM\u8c03\u5149\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/h2>\n\n\n\n<p>\u76f4\u6d41\u8c03\u5149\u4e0ePWM\u8c03\u5149\u4e4b\u95f4\u7684\u533a\u522b\u5728\u4e8e\u4e24\u79cd\u65b9\u6cd5\u63a7\u5236LED\u4eae\u5ea6\u7684\u65b9\u5f0f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u76f4\u6d41\u8c03\u5149<\/strong>, \uff0c\u5373\u6a21\u62df\u8c03\u5149\uff0c\u901a\u8fc7\u964d\u4f4e\u7535\u538b\u6216\u7535\u6d41\u6765\u76f4\u63a5\u8c03\u8282\u4f9b\u5e94\u7ed9LED\u7684\u529f\u7387\u3002\u8fd9\u4f1a\u4f7f\u4eae\u5ea6\u5e73\u7a33\u964d\u4f4e\uff0c\u4e14\u4e0d\u4f1a\u4ea7\u751f\u95ea\u70c1\u3002\u4e0d\u8fc7\uff0c\u968f\u7740\u4eae\u5ea6\u964d\u4f4e\uff0c\u7531\u4e8e\u529f\u7387\u6c34\u5e73\u964d\u4f4e\uff0cLED\u7684\u989c\u8272\u53ef\u80fd\u4f1a\u53d1\u751f\u53d8\u5316\u3002.<\/li>\n\n\n\n<li><strong>PWM\u8c03\u5149<\/strong> \u901a\u8fc7\u5feb\u901f\u5f00\u5173LED\u6765\u8c03\u8282\u4eae\u5ea6\u3002\u6bcf\u4e2a\u5468\u671f\u4e2dLED\u7684\u5bfc\u901a\u65f6\u95f4\uff0c\u5373\u5360\u7a7a\u6bd4\uff0c\u51b3\u5b9a\u4e86\u5176\u4eae\u5ea6\u3002\u7531\u4e8ePWM\u4e0d\u4f1a\u6539\u53d8\u529f\u7387\u6c34\u5e73\uff0c\u56e0\u6b64\u5373\u4f7f\u5728\u8f83\u4f4e\u4eae\u5ea6\u4e0b\uff0c\u4e5f\u80fd\u4fdd\u6301LED\u7684\u8272\u6cfd\u548c\u6548\u7387\u3002.<\/li>\n<\/ul>\n\n\n\n<p>\u5f53\u9700\u8981\u7cbe\u786e\u7684\u4eae\u5ea6\u63a7\u5236\u548c\u8272\u5f69\u4e00\u81f4\u6027\u65f6\uff0cPWM \u901a\u5e38\u88ab\u8ba4\u4e3a\u66f4\u5177\u4f18\u52bf\uff0c\u56e0\u6b64\u5b83\u6210\u4e3a\u663e\u793a\u5668\u548c\u7167\u660e\u5e94\u7528\u7684\u9996\u9009\u65b9\u6848\uff0c\u5728\u8fd9\u4e9b\u5e94\u7528\u4e2d\uff0c\u4fdd\u6301\u5149\u8d28\u81f3\u5173\u91cd\u8981\u3002\u76f4\u6d41\u8c03\u5149\u901a\u5e38\u66f4\u4e3a\u7b80\u5355\u4e14\u65e0\u9891\u95ea\uff0c\u56e0\u6b64\u5728\u8272\u5f69\u504f\u79fb\u53ef\u4ee5\u63a5\u53d7\u4e14\u7b80\u4fbf\u6027\u662f\u5173\u952e\u7684\u5e94\u7528\u573a\u666f\u4e2d\u975e\u5e38\u5b9e\u7528\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">LED\u706f\u4e2d\u7684PWM\u8c03\u5149\u4e0e\u7535\u6d41\u8c03\u5149\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/h2>\n\n\n\n<p>\u53e6\u4e00\u4e2a\u6709\u7528\u7684\u6bd4\u8f83\u662f <strong>PWM\u8c03\u5149\u548c\u6052\u6d41\u964d\u538b\uff08CCR\uff09<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>PWM\u8c03\u5149<\/strong> \u901a\u8fc7\u5feb\u901f\u5207\u6362LED\u7684\u5f00\/\u5173\u72b6\u6001\uff0c\u53ef\u6839\u636e\u5360\u7a7a\u6bd4\u5bf9\u4eae\u5ea6\u8fdb\u884c\u7cbe\u7ec6\u8c03\u8282\u3002\u8fd9\u79cd\u65b9\u6cd5\u65e2\u907f\u514d\u4e86\u56e0\u7535\u6d41\u964d\u4f4e\u800c\u4ea7\u751f\u7684\u53d1\u70ed\u95ee\u9898\uff0c\u53c8\u80fd\u786e\u4fdd\u4eae\u5ea6\u548c\u8272\u8d28\u7684\u4e00\u81f4\u6027\u3002.<\/li>\n\n\n\n<li><strong>\u6052\u6d41\u8870\u51cf\uff08CCR\uff09<\/strong> \u901a\u8fc7\u964d\u4f4e\u6d41\u7ecfLED\u7684\u5b9e\u9645\u7535\u6d41\u6765\u8c03\u6697LED\uff0c\u968f\u7740\u7535\u6d41\u7684\u964d\u4f4e\uff0cLED\u4f1a\u9010\u6e10\u53d8\u6697\u3002\u8fd9\u79cd\u65b9\u6cd5\u4f7fLED\u4fdd\u6301\u5728\u8fde\u7eed\u201c\u5f00\u542f\u201d\u72b6\u6001\u4e14\u65e0\u95ea\u70c1\uff0c\u90e8\u5206\u7528\u6237\u66f4\u9752\u7750\u8fd9\u79cd\u65b9\u5f0f\u3002\u4e0d\u8fc7\uff0c\u7531\u4e8e\u7535\u6d41\u51cf\u5c0f\u5bfc\u81f4\u4eae\u5ea6\u964d\u4f4e\uff0cCCR\u8c03\u5149\u53ef\u80fd\u4f1a\u5f15\u8d77\u8f7b\u5fae\u7684\u8272\u504f\u3002.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"787\" height=\"516\" src=\"https:\/\/bo-qi.com\/wp-content\/uploads\/2024\/11\/image-13.png\" alt=\"\u56fe13\" class=\"wp-image-5161\" srcset=\"https:\/\/bo-qi.com\/wp-content\/uploads\/2024\/11\/image-13.png 787w, https:\/\/bo-qi.com\/wp-content\/uploads\/2024\/11\/image-13-300x197.png 300w, https:\/\/bo-qi.com\/wp-content\/uploads\/2024\/11\/image-13-768x504.png 768w, https:\/\/bo-qi.com\/wp-content\/uploads\/2024\/11\/image-13-18x12.png 18w\" sizes=\"(max-width: 787px) 100vw, 787px\" \/><\/figure>\n\n\n\n<p>\u8fd9\u4e24\u79cd\u65b9\u6cd5\u5404\u6709\u4f18\u7f3a\u70b9\u3002\u5f53\u9700\u8981\u9ad8\u9891\u5f00\u5173\u548c\u7a33\u5b9a\u7684\u5149\u8f93\u51fa\u65f6\uff0cPWM\u662f\u7406\u60f3\u7684\u9009\u62e9\uff1b\u800cCCR\u5219\u80fd\u63d0\u4f9b\u66f4\u7b80\u5355\u3001\u65e0\u9891\u95ea\u7684\u4f53\u9a8c\uff0c\u5728\u8bb8\u591a\u5b9e\u9645\u7167\u660e\u5e94\u7528\u4e2d\u8868\u73b0\u826f\u597d\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">PWM\u8c03\u5149\u7684\u4f18\u52bf\u4e0e\u52a3\u52bf<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">PWM\u8c03\u5149\u7684\u4f18\u52bf<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u80fd\u6e90\u6548\u7387<\/strong>: \u901a\u8fc7\u8c03\u8282\u7535\u6d41\uff0cPWM\u8c03\u5149\u80fd\u6709\u6548\u964d\u4f4e\u529f\u8017\uff0c\u56e0\u6b64\u5177\u6709\u8282\u80fd\u6548\u679c\u3002.<\/li>\n\n\n\n<li><strong>\u7a33\u5b9a\u7684\u8272\u5f69\u8d28\u91cf<\/strong>: PWM\u8c03\u5149\u4e0d\u4f1a\u5f71\u54cdLED\u7684\u989c\u8272\uff0c\u56e0\u6b64\u4eae\u5ea6\u53d8\u5316\u4e0d\u4f1a\u5bfc\u81f4\u989c\u8272\u504f\u79fb\uff0c\u8fd9\u662f\u5b83\u76f8\u5bf9\u4e8e\u5176\u4ed6\u65b9\u6cd5\u7684\u4e00\u5927\u4f18\u52bf\u3002.<\/li>\n\n\n\n<li><strong>\u7cbe\u786e\u63a7\u5236<\/strong>: PWM \u80fd\u591f\u7cbe\u786e\u8c03\u8282\u4eae\u5ea6\u7ea7\u522b\uff0c\u56e0\u6b64\u975e\u5e38\u9002\u5408\u9700\u8981\u7cbe\u7ec6\u8c03\u8282\u5149\u7167\u63a7\u5236\u7684\u5e94\u7528\u573a\u666f\u3002.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">PWM\u8c03\u5149\u7684\u7f3a\u70b9<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5bf9\u654f\u611f\u7528\u6237\u800c\u8a00\u7684\u773c\u90e8\u75b2\u52b3<\/strong>: PWM \u53ef\u80fd\u4f1a\u8ba9\u5bf9\u95ea\u70c1\u654f\u611f\u7684\u4eba\u611f\u5230\u4e0d\u9002\uff0c\u5c24\u5176\u662f\u5728\u8f83\u4f4e\u9891\u7387\u4e0b\u3002.<\/li>\n\n\n\n<li><strong>\u590d\u6742\u8bbe\u8ba1<\/strong>: \u96c6\u6210PWM\u8c03\u5149\u53ef\u80fd\u6bd4\u6a21\u62df\u8c03\u5149\u9700\u8981\u66f4\u590d\u6742\u7684\u7535\u8def\uff0c\u8fd9\u53ef\u80fd\u4f1a\u5f71\u54cd\u6210\u672c\u548c\u8bbe\u8ba1\u3002.<\/li>\n\n\n\n<li><strong>\u517c\u5bb9\u6027\u95ee\u9898<\/strong>: \u5e76\u975e\u6240\u6709 LED \u9a71\u52a8\u5668\u90fd\u652f\u6301 PWM \u8c03\u5149\uff0c\u56e0\u6b64\u786e\u4fdd\u4e0e\u652f\u6301 PWM \u7684\u9a71\u52a8\u5668\u517c\u5bb9\u81f3\u5173\u91cd\u8981\u3002.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">PWM\u8c03\u5149\u5728\u7167\u660e\u548c\u7535\u5b50\u9886\u57df\u7684\u5e94\u7528<\/h2>\n\n\n\n<p>PWM\u8c03\u5149\u6280\u672f\u56e0\u5176\u591a\u529f\u80fd\u6027\uff0c\u5df2\u6210\u4e3a\u4f17\u591a\u9886\u57df\u7684\u9996\u9009\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>LED\u7167\u660e<\/strong>: \u4ece\u8def\u706f\u5230\u5bb6\u5c45\u7167\u660e\uff0cPWM\u8c03\u5149\u6280\u672f\u53ef\u5728\u4e0d\u5f71\u54cdLED\u4f7f\u7528\u5bff\u547d\u6216\u80fd\u6548\u7684\u524d\u63d0\u4e0b\uff0c\u5b9e\u73b0\u5e73\u6ed1\u3001\u53ef\u8c03\u8282\u7684\u4eae\u5ea6\u63a7\u5236\u3002.<\/li>\n\n\n\n<li><strong>\u663e\u793a\u5c4f<\/strong>: \u5927\u591a\u6570\u73b0\u4ee3\u663e\u793a\u5c4f\uff08\u5305\u62ec\u624b\u673a\u3001\u7535\u8111\u548c\u7535\u89c6\uff09\u90fd\u91c7\u7528PWM\u8c03\u5149\u6280\u672f\uff0c\u5728\u4fdd\u6301\u8272\u5f69\u51c6\u786e\u6027\u7684\u540c\u65f6\u5b9e\u73b0\u52a8\u6001\u4eae\u5ea6\u63a7\u5236\u3002.<\/li>\n\n\n\n<li><strong>\u7535\u673a\u63a7\u5236<\/strong>: PWM \u8fd8\u7528\u4e8e\u63a7\u5236\u81ea\u52a8\u5316\u7cfb\u7edf\u4e2d\u76f4\u6d41\u7535\u673a\u7684\u8f6c\u901f\uff0c\u4ece\u800c\u786e\u4fdd\u5de5\u4e1a\u673a\u68b0\u8fd0\u884c\u5e73\u7a33\u5e76\u5b9e\u73b0\u8282\u80fd\u3002.<\/li>\n<\/ul>\n\n\n\n<p>PWM\u8c03\u5149\u6280\u672f\u53ef\u8f7b\u677e\u9002\u914d\u5404\u79cd\u6280\u672f\uff0c\u63d0\u4f9b\u8282\u80fd\u4e14\u7cbe\u786e\u7684\u63a7\u5236\uff0c\u65e2\u80fd\u63d0\u5347\u7528\u6237\u4f53\u9a8c\uff0c\u53c8\u80fd\u5ef6\u957f\u4ea7\u54c1\u4f7f\u7528\u5bff\u547d\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5982\u4f55\u8bbe\u7f6ePWM\u8c03\u5149LED\u9a71\u52a8\u5668<\/h2>\n\n\n\n<p>\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\uff0c\u8bbe\u7f6ePWM\u8c03\u5149LED\u9a71\u52a8\u5668\u975e\u5e38\u7b80\u5355\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u9009\u62e9\u4e00\u6b3e\u652f\u6301PWM\u7684\u9a71\u52a8\u5668<\/strong>: \u8bf7\u786e\u8ba4\u60a8\u9009\u62e9\u7684LED\u9a71\u52a8\u5668\u80fd\u5426\u5904\u7406PWM\u4fe1\u53f7\u3002\u8bb8\u591a\u9a71\u52a8\u5668\u90fd\u4f1a\u660e\u786e\u6807\u6ce8\u662f\u5426\u652f\u6301PWM\u8c03\u5149\u3002.<\/li>\n\n\n\n<li><strong>\u9009\u62e9\u5408\u9002\u7684\u9891\u7387<\/strong>: \u5bf9\u4e8e\u7167\u660e\uff0c\u5efa\u8bae\u4f7f\u7528\u8f83\u9ad8\u9891\u7387\uff082kHz\u4ee5\u4e0a\uff09\uff0c\u4ee5\u51cf\u5c11\u95ea\u70c1\u5e76\u5b9e\u73b0\u5e73\u6ed1\u8c03\u5149\u3002.<\/li>\n\n\n\n<li><strong>\u8fde\u63a5 PWM \u4fe1\u53f7<\/strong>: \u5c06 PWM \u63a7\u5236\u5668\u8fde\u63a5\u5230 LED \u9a71\u52a8\u5668\uff0c\u8c03\u6574\u5360\u7a7a\u6bd4\u4ee5\u8fbe\u5230\u6240\u9700\u7684\u4eae\u5ea6\u3002\u901a\u8fc7\u6d4b\u8bd5\u4e0d\u540c\u7684\u9891\u7387\u548c\u5360\u7a7a\u6bd4\uff0c\u6709\u52a9\u4e8e\u4f18\u5316\u8bbe\u7f6e\uff0c\u4ece\u800c\u83b7\u5f97\u6700\u4f73\u6027\u80fd\u548c\u89c6\u89c9\u8212\u9002\u5ea6\u3002.<\/li>\n<\/ol>\n\n\n\n<p>\u9075\u5faa\u8fd9\u4e9b\u6b65\u9aa4\u53ef\u786e\u4fdd\u53ef\u9760\u7684\u6027\u80fd\u548c\u6d41\u7545\u7684\u8c03\u5149\u6548\u679c\uff0c\u4f7fPWM\u6210\u4e3a\u5404\u79cdLED\u5e94\u7528\u7684\u9ad8\u6548\u9009\u62e9\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6458\u8981<\/h2>\n\n\n\n<p>PWM\u8c03\u5149\u662f\u4e00\u79cd\u529f\u80fd\u591a\u6837\u4e14\u6709\u6548\u7684LED\u4eae\u5ea6\u63a7\u5236\u65b9\u6848\uff0c\u7279\u522b\u9002\u7528\u4e8e\u7167\u660e\u548c\u663e\u793a\u9886\u57df\u3002 \u501f\u52a9PWM\u6280\u672f\uff0c\u60a8\u53ef\u4ee5\u5728\u4e0d\u5f71\u54cd\u80fd\u6e90\u6548\u7387\u6216\u8272\u5f69\u51c6\u786e\u6027\u7684\u524d\u63d0\u4e0b\uff0c\u5bf9\u5149\u7167\u5f3a\u5ea6\u8fdb\u884c\u7cbe\u7ec6\u8c03\u8282\u3002\u65e0\u8bba\u662f\u4e3a\u5bb6\u4e2d\u5e03\u7f6e\u7167\u660e\u3001\u8c03\u6574\u5c4f\u5e55\u4eae\u5ea6\uff0c\u8fd8\u662f\u8fdb\u884c\u7535\u5b50\u9879\u76ee\u5f00\u53d1\uff0c\u4e86\u89e3PWM\u8c03\u5149\u90fd\u80fd\u4e3a\u60a8\u63d0\u4f9b\u5fc5\u8981\u7684\u77e5\u8bc6\uff0c\u52a9\u60a8\u505a\u51fa\u660e\u667a\u4e14\u6709\u76ca\u7684\u9009\u62e9\u3002.<\/p>","protected":false},"excerpt":{"rendered":"<p>PWM dimming, or Pulse Width Modulation dimming, is a method of controlling the brightness of LEDs and other lighting systems by rapidly switching the light on and off. This technique allows precise control over brightness while ensuring energy efficiency and maintaining color quality. PWM dimming is widely used in various applications, from residential lighting to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5154,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"none","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"","footnotes":""},"categories":[38],"tags":[],"class_list":{"0":"post-5118","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-other-dimming"},"_links":{"self":[{"href":"https:\/\/bo-qi.com\/zh\/wp-json\/wp\/v2\/posts\/5118","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bo-qi.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bo-qi.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bo-qi.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bo-qi.com\/zh\/wp-json\/wp\/v2\/comments?post=5118"}],"version-history":[{"count":0,"href":"https:\/\/bo-qi.com\/zh\/wp-json\/wp\/v2\/posts\/5118\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bo-qi.com\/zh\/wp-json\/wp\/v2\/media\/5154"}],"wp:attachment":[{"href":"https:\/\/bo-qi.com\/zh\/wp-json\/wp\/v2\/media?parent=5118"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bo-qi.com\/zh\/wp-json\/wp\/v2\/categories?post=5118"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bo-qi.com\/zh\/wp-json\/wp\/v2\/tags?post=5118"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}