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如何实现10KHz以上PWM调光

Other Parts Discussed in Thread: LM3405, LM3409, LM3414

现在用LM3405 4KHz PWM调光,摄像机拍摄视频会有轻微闪烁。

由于不能做到同步,只能继续提高调光频率,而且调光比要求做到200:1以上

各位有什么好的解决方案?谢谢!