An Improved ZVT PWM Three Level Boost Converter for Power Factor Preregulator

Author

Yao, Gang ; Ma, Mingyao ; Deng, Yan ; Li, Wuhua ; He, Xiangning

Author_Institution

Zhejiang Univ., Hangzhou

fYear

2007

Firstpage

768

Lastpage

772

Abstract

An improved ZVT PWM three level boost converter for power factor preregulator is proposed in this paper. Only one auxiliary switch is used in the active soft switching circuit. By using this ZVT converter topology, zero voltage turn-on and zero voltage turn-off of the main switches can be achieved and the reverse-recovery loss of boost diode can be reduced. In addition, the auxiliary switch is ZCS during the turn-on switching transition and zero voltage turn-off. A prototype of boost converter rated at 420 W has been built to confirm the effectiveness of the converter.

Keywords

PWM power convertors; power factor correction; zero current switching; zero voltage switching; ZVT PWM three level boost converter; ZVT converter topology; active soft switching circuit; auxiliary switch; boost diode; power 420 W; power factor preregulator; reverse-recovery loss; turn-on switching transition; zero current switching; zero voltage turn-off; zero voltage turn-on; Circuit topology; Diodes; Pulse width modulation; Pulse width modulation converters; Reactive power; Switches; Switching circuits; Switching converters; Zero current switching; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2007. PESC 2007. IEEE

Conference_Location

Orlando, FL

ISSN

0275-9306

Print_ISBN

978-1-4244-0654-8

Electronic_ISBN

0275-9306

Type

conf

DOI

10.1109/PESC.2007.4342084

Filename

4342084