Title :
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
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;
Conference_Titel :
Power Electronics Specialists Conference, 2007. PESC 2007. IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-0654-8
Electronic_ISBN :
0275-9306
DOI :
10.1109/PESC.2007.4342084
