This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

UCC28061在220VAC输入时电感电流的包络有畸变,是否正常,如何解决

Other Parts Discussed in Thread: UCC28061

我在用UCC28061做一个PFC,输出电压400V,功率450W时,在110V输入时电感电流波形波形包络是正常的正弦波全波整流后波形,但是输入电压升到220VAC时,电感电流波形发生畸变,波形如下:

波形展开后三角波的幅值也会在某些时候出1-2个高的幅值. 我想知道是哪些原因可能引起这种现象?有何对策?