HI to all dears
I have a zte rectifier ZDX2400 V3.0 that damage boost mosfets VT1 and VT2 on main board power .
and damage any op-amp and PFC PWM D1 uc3854 in PCTL board .
I think this happen because return high voltage via mosfet gates to 15 v VCC PCTL supply.
now when connect power to input, close inrush relay in input and 420 V dc on capacitor booster but no output . turn on LED "IN" and "ALM" in front panel .
no body any idea ?
thanks
jadidi