Kindly provide detailed datasheet for T4(Main Fb Transformer) of PMP8740. Other thread contains datasheet, but that was not sufficient for making transformer.
It does not contains layer stackup, wire size and number of wires etc.
Also request you to help in design 60V & 110V (separate )output, 330V to 400V input transformer. I have excel design tool, but not have enough confidence to design on my own. it will help to have verification from you.