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UCC28180: 输入电流ITHD比较大

Part Number: UCC28180
Other Parts Discussed in Thread: TIDA-00779

  用的是案例里面的电路,参数设计几乎一模一样,但为什么调试过程中的输入电流ITHD一直在5%附近?看手册里面说的应该是能到3以下的。调了很多环路参数也没有什么效果,后续应该怎么修改呢?