I am designed PWM inverter using sg3525, o/p frequency 55Hz and am using iron core transformer(I take the transformer from the ups , I think this transformer can handle up to 800W).
when I increased the output voltage to 200V(by varying the value of R8), one mosfet is heated and another mosfet is cool and the transformer is also cool.
I have already checked my circuit so many time, nothing is wrong with the circuit and the connection.
I don't know how to solve this problem. Please help me