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UCC28180D 减小PFC输出电压的100HZ 纹波

Other Parts Discussed in Thread: TIDA-00779

使用TI 的TIDA-00779 3.5KW 单相PFC,芯片是UCC28180D,  遇到的问题是PFC输出的低频电压纹波较大。 我该如何减小此低频电压纹波。 可以通过增大低频增益来解决吗,可以的话应该怎么调整环路参数。