Hello
I use UC2852 for PFC device
I am experimenting with the circuit of the attached paper.
When this circuit is moved, abnormality is found in operation.
1 Look at pictuer 波形2 （the attached paper. )
usually.This shape of waves becomes off about the switch and becomes a switch on ..the next...
However, it is different.
２ Look at pictuer 波形3 （the attached paper. )
This shape of waves is an intermittent oscillation. (this is Light load)
I am question.
① The cause?
② Is there a method of measures?
My best regards.