{"id":2228,"date":"2019-03-14T03:45:42","date_gmt":"2019-03-14T03:45:42","guid":{"rendered":""},"modified":"2019-03-14T11:46:10","modified_gmt":"2019-03-14T03:46:10","slug":"%e9%a3%9e%e5%85%86%e5%8d%8a%e5%af%bc%e4%bd%93%e6%8e%a8%e5%87%ba%e4%ba%86%e4%b8%80%e6%ac%be%e9%ab%98%e6%80%a7%e4%bb%b7%e6%af%94%e7%9a%84led%e9%a9%b1%e5%8a%a8%e5%99%a8fan5","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=2228","title":{"rendered":"\u98de\u5146\u534a\u5bfc\u4f53\u63a8\u51fa\u4e86\u4e00\u6b3e\u9ad8\u6027\u4ef7\u6bd4\u7684LED\u9a71\u52a8\u5668FAN5"},"content":{"rendered":"

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\n\tFAN5701\u662f\u4e00\u6b3e\u9ad8\u6027\u4ef7\u6bd4\u7684LED\u9a71\u52a8\u5668\uff0c\u5b83\u4f7f\u7528\u4e24\u4e2aPWM\u8f93\u5165\u6765\u63a7\u5236\u5206\u7ec4\u4e3a\u56db\u4e2a\u548c\u4e24\u4e2aLED\u8f93\u51fa\u7684\u4eae\u5ea6\uff0c\u9002\u7528\u4e8e\u9700\u8981\u540c\u65f6\u4e3a\u4e24\u4e2aLCD\u663e\u793a\u5c4f\u63d0\u4f9b\u80cc\u5149\u7167\u660e\uff0c\u6216\u9a71\u52a8\u5728\u624b\u673a\u4e2d\u4f5c\u4e3a\u4f4e\u529f\u8017\u76f8\u673a\u95ea\u5149\u706f\u7684\u9ad8\u4eae\u5ea6LED\u7b49\u5e94\u7528\u3002<\/p>\n

\n\t <\/div>\n

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\n\tFAN5702\u662f\u5177\u6709I2C<\/u>\u63a5\u53e3\u7684\u53ef\u914d\u7f6e\u3001180mA\u30016\u901a\u9053LED\u9a71\u52a8\u5668\uff0c\u53ef\u63d0\u4f9b\u4ee5\u4e0b\u4f18\u52bf\uff1a<\/p>\n

\n\t\u8bbe\u8ba1\u7075\u6d3b\u6027\uff1a\u9664LCD\u663e\u793a\u5c4f\u80cc\u5149\u7167\u660e\u5916\uff0c\u5668\u4ef6\u4e5f\u53ef\u7528\u4e8e\u5176\u5b83\u591a\u79cd\u7167\u660e\u5e94\u7528\uff0c\u4f8b\u5982\u7ea2\/\u7eff\/\u84dd(RGB)\u6307\u793a\u706f\u6216\u5a31\u4e50\u7167\u660e\u7b49\u3002<\/p>\n

\n\tI2C\u63a5\u53e3\uff1a\u53ef\u8ba9\u8bbe\u8ba1\u4eba\u5458\u5206\u522b\u63a7\u5236LED\u8f93\u51fa(2,1,1,1,1\u683c\u5f0f)\uff0c\u5e76\u6839\u636e\u8bbe\u8ba1\u8981\u6c42\u8fdb\u884cLED\u7684\u7ec4\u5408\u548c\u5206\u79bb\u63a7\u5236\u3002<\/p>\n

\n\t\u66f4\u597d\u7684\u4eae\u5ea6\u63a7\u5236\uff1a\u6bcf\u4e2aLED\u8f93\u51fa\u652f\u630164\u4e2a\u5bf9\u6570\u8c03\u5149(logarithmic-dimming)\u6b65\u5e45\uff0c\u80fd\u591f\u6d88\u9664\u4f4e\u4eae\u5ea6\u4e0b\u5e38\u89c1\u7684\u5931\u771f\u73b0\u8c61\u3002<\/p>\n

\n\t\u4f7f\u80fd\u5f15\u811a(enable pi<\/u>n)\uff1a\u4e3a\u57fa\u5e26\u82af\u7247\u7ec4\u63d0\u4f9b\u76f4\u63a5\u7684\u901a\u65ad\u63a7\u5236\u3002<\/p>\n

\n\t\u652f\u6301\u52a8\u6001\u80cc\u5149\u63a7\u5236(dynamic backlight control, DBC)\u7684PWM\u4fe1\u53f7\u8f93\u5165\uff1aDBC\u529f\u80fd\u53ef\u6839\u636e\u56fe\u50cf\u5185\u5bb9\u81ea\u52a8\u8c03\u8282LED\u4eae\u5ea6\uff0c\u6709\u52a9\u4e8e\u964d\u4f4e\u529f\u8017\u3002<\/p>\n

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