Focusing on the normal inverter's dynamic characteristics which can not satisfy the requirement of reducing current quickly before the time of rupturing of the bridge, a new current wave controlling method for short circuit transfer CO 2 welding using satiable inductor is put forward in this paper.

A full bridge ZVZCS converter using limited double-polarity control method,a saturable inductor and a capacitor is studied.

Compared with the traditional full-bridge(FB)zero-voltage-switched(ZVS) pulsewidth-modulated(PWM) converter, the FB-ZVS-PWM converter with a saturable inductor has a wider load range with ZVS and smaller circulating energy as well as smaller duty cycle loss.

Through discussion of the soft switching principle of resonant reset soft switching dual switch forward dc-dc topology, an optimized current source reset circuit for resetting the saturable reactor is presented.

In addition, soft switching operation is achieved for all switches of the presented converter by adding a saturable reactor .

Influence of inconstant voltage input on phase-shifted-FB-ZVS-PWMDC-DC converter with saturated inductor;

This paper presents an analysis of the work process of a PS-FB-ZVZCS PWM DC/DC converter with saturated inductor and proposes the design principle of several key parameters.