A 1.5 kW operation with 90% efficiency of a two transistors forward converter with non-dissipative snubber

This paper presents a nondissipative snubber forward power converter. As result of this topology, the switching losses are reduced. The proposed approach allows one to obtain better operating performances than those already known for hard-switching PWM operating at higher switching frequencies and with a wide range of power. The switches are not submitted to overvoltages and the peak of current across the switches can be adjusted by the suitable choice of the resonant capacitor and inductor.