Tool/software:
Hi,
I'm testing a 5KW interleaved PFC using UCC28070, Vin=180AC, Vout=400DC, Fsw=60khz.
When I add the load current up to around 12A, the input current seems distorted, see below.
It seems it's caused by the unnormal controlling of PWM which makes the outline of the igbt current jagged and shutdown after that.
Any idea where I should look into? Thanks!