Hello TI,
I am working on PFC using UC3854 with same circuit as given in datasheet with one difference,Instead of using
1mH torroidal core inductor I am using transformer core inductor of same value.Whenever I connect load O/p
voltage starts reducing it reaches low as 0 volt and again increases to set voltage strange thing is, it keeps on
increasing even after that voltage.
So is this control loop problem or caused by wrong inductor core selection(since other components are same as
in datasheet).
please help me.