Its okay sam, but the PWM have some protections, and if output voltage
was more than 6.5V it disable every thing, with or without load..

the tranformer are malfunction, and i can't get another becouse don't
produce anymore, this power supply is very old, and i have to repair
it, decrease the output tension, and i dont know how..

there is no regulation, just exist a small feedbak for output
protecion, if voltage was superior to 6.5V it disable everything.
thats all..

The shematic ir very simple, it rectifier 220VAC from nets, to 315VDV
wih 4 diods and 2 big capacitors, than the tranformer is conected in
serie with MOSFET, pulsing that 315VDC to tranformer, and the there is
3 output, one at 5VDC with 18A and another 24V with 0.5A...

The problem is the tranformer, the mosfet is directly connected to PWM
with one wire, there is no regulation!!

How can i reduce the power changing the shema??

thanks