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when I debug PFC with TMS320F28022 (demo code is PFC2PhiL). The input current lead the input voltage. The waveform is as below picture.
The PF is 0.994. But we need it about 0.998 or higher. Is there any advice? Thank you.
We have improved PFC reference designs. Please see those (ILPFC, TIDM-1022, TIDM-1007) and do not use the old design PFC2PhiL
You phase lead in the current could be because of large EMI filter capacitor.
Shamim
