Other Parts Discussed in Thread: UCC28019, UCC28070
以UCC28019芯片为基础做了一款1500W的PFC,空载电压稳定393V.从空载加到500W左右输出电压一直很稳定,缓慢加到550W输出电压就降到300V.增加输入电压也没作用,无发热现象,负载是电子负载。
求各位大佬指导
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Hi
1500W不建议用UCC28019, 这个芯片一般适用于小功率PFC, 你可以用UCC28070之类的大功率PFC芯片来做。