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https://www.alighting.cn/resource/20051208/128899.htm2005/12/8 0:00:00
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https://www.alighting.cn/resource/20051123/128468.htm2005/11/23 0:00:00
led的亮度控制是通过频率为30khz的pwm信号实现的。lm3519高频升压白光led驱动器能够驱动4个白光led，为其提供恒定电流用于手持设备的液晶显示背光照明。led电流可
https://www.alighting.cn/resource/20051122/128467.htm2005/11/22 0:00:00
https://www.alighting.cn/resource/20051121/128466.htm2005/11/21 0:00:00
