A ZCS-PWM interleaved boost rectifier

A ZCS-PWM interleaved boost rectifier with high power factor is proposed in this paper. The pulse-width-modulation technique and soft commutation technique are used in the proposed rectifier to promote the circuit performance. The proposed circuit includes two boost converter which are operated at interleaved mode to increase the output power and reduce the input ripple current. A ZCS-PWM auxiliary circuit is configured in the presented rectifier to provide the ZCS function on main switches and auxiliary switches and improve the problem of switching losses and EMI. A prototype has been implemented in laboratory to verify circuit theory.