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LM3429 LED驱动器严重干扰收音机

Other Parts Discussed in Thread: LM3429

我最近用LM3429做了一个LED驱动,当收音机放到旁边时,收到的信号就是一片空白杂音,在2米以外才能正常收音,请问各位高手如何解决辐射发射的干扰,谢谢!