i have used your PI RDR 290 75W design and i am getting some of the issues
1. No Output Votage Even when IC LNK420 BP pin is getting 5.98V & across the cathode pin of D7
2. Drawing more current and also low cureent at the output.
3. how to reduce the THDl ess than 10% in this design ( I have used a capacitor of 10nF/1Kv in
series two resistor of 1.5ME/1W(1% Tolerance) in between R5 and VR1 and
is connected to FB pin of IC LNK420