An improved ZVT PWM boost converter

This paper proposes an improved ZVT-PWM boost converter. The main switch of the conventional ZVT-PWM converter is always switched at zero voltage. But the auxiliary switch is turned-off with switching loss due to hard switching condition. Therefore, the proposed converter reduces the turn-off switching loss of the auxiliary switch by using an additional circuit. All of the losses for the switches are minimized, and high power density system can be realized.

[1]  F. Lee,et al.  Novel zero-voltage-transition PWM converters , 1992, PESC '92 Record. 23rd Annual IEEE Power Electronics Specialists Conference.

[2]  Gyu-Hyeong Cho,et al.  New group of ZVS PWM converters operable on constant frequency and its application to power factor correction circuit , 1992, PESC '92 Record. 23rd Annual IEEE Power Electronics Specialists Conference.

[3]  Fred C. Lee,et al.  Zero-voltage-switching multi-resonant technique-a novel approach to improve performance of high frequency quasi-resonant converters , 1988, PESC '88 Record., 19th Annual IEEE Power Electronics Specialists Conference.

[4]  F. Lee,et al.  Zero-voltage switching technique in DC/DC converters , 1986, 1986 17th Annual IEEE Power Electronics Specialists Conference.