push pull switch mode power supply
hi,
i have just built and tested a push pull , using current mode with MC34025 pwm controller.
It was only a 10 W offline converter but the mosfets immediately got really hot.
I have changed to do a one transistor forward converter now and it is fine.
i would have preffered push pull as it's less ripple current in the secondary, but those FETs were frying!
I am convinced that even with current mode, the push pull is no use, as it will not be able to distinguish magnetising current from load current ?