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. \u8f93\u5165\u7535\u538b\u4e3a3.7V\u65f6,\u4ee5\u6bcf\u4e2aLED 20mA\u7535\u6d41\u9a71\u52a86\u4e32\u5e76\u8054\u3001\u6bcf\u4e325\u4e2aLED\u7684\u914d\u7f6e \u6548\u7387\u4e3a90%
. 0.8mA\u9759\u6001\u7535\u6d41\u548c\u76f8\u79fbPWM\u8c03\u5149\uff0c\u53ef\u63d0\u9ad8\u6548\u7387\u548c\u5ef6\u957f\u7535\u6c60\u7eed\u822a\u65f6\u95f4
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. \u5bbd\u8c03\u5149\u8303\u56f4\uff0c\u57285kHz\u8c03\u5149\u9891\u7387\u4e0b\u5360\u7a7a\u6bd4\u53ef\u4f4e\u81f30.025%
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