调试LM3421,nDIM输如40KHZ PWM调光信号调亮度,发现有闪烁形象,检测GATE引脚波形异常,怎么调都差不多,请大家帮忙分析,附原理图和PCB图
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调试LM3421,nDIM输如40KHZ PWM调光信号调亮度,发现有闪烁形象,检测GATE引脚波形异常,怎么调都差不多,请大家帮忙分析,附原理图和PCB图