I have built the power supply with the schematic shown in the attached photo using TNY274PN. However, although it is designed for 2.5 A, and I used PI Expert for designing the transformer and carefully wound it, the power sully is not capable of providing 2.5 A. Actually for more than about 700 mA it goes to the hiccup mode and restarts frequently.
I am not experienced in using TinySwitches.
Thanks in advance.
Current limit error uinig TNY274PN