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LED灯延迟现象
更新时间: 2020-10-02 00:00:00  

LED灯的延迟现象是正常的,这是为了保护电源。LED灯的电流是恒定的,电压需要判断一下灯珠的额定电压,所以延迟两秒以内都属于正常现象。原理:在输出端并联一个大容电容,电容可以滤波,滤脉冲。如果加大电容,无延迟,需要功率很大的电源,这样会增加成本。所以小功率电源,配大电容,就会有延迟。因为只有电容充满了,电压才能上去输出。

关键词: led 延迟 现象

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