hi sir i have made this from your design there might be small changes based on my parts available, i had it with 50vdc rails using most parts from ATX psu. i do not expect high efficiency due to the parts i made and this is just for fun. i am powering my 2x100W amplifier. but i have some situation every time i shut it down/turn off the SMPS cannot be turned on again immediately and the protect led will turn on. the result was i cannot use it back again for several minutes (10-20minutes) just to discharge the caps before it will turn on again. by the way it was 2x680uf in main and 2x100k1w resistors,
sam View attachment 7017
Show me the schematics of your new setup and I can see what you have changed maybe I can help you solve the problem.