I have an ac dc converter project based on flyback (85-270AC / 12V_1.5A-15V_0.125mA) and at the output I do not have voltage regulated. The project was prepared with the help of e-Design.
I was able to operate when I pressed the tip of the oscilloscope to measure the CONT (6) pin. With the tip on this pin the output regulates to 12V and 15V. When removing the tip, it stops to regulate. I inserted a 22pF ceramic capacitor in parallel with the RLIM and apparently solved the problem.
In e-Design this capacitor is not necessary. Could you help me identify what the problem might be in my project? Can it be layout problem?
Thank you.
Fernando
