Title: Zero voltage transition isolated PWM push pull boost converter for single stage power factor correction application
Authors: S.L. Patil, A.K. Agarwala, U.M. Chaskar
Addresses: College of Engineering, Pune, Maharashtra, 411 005, India. ' Indian Institute of Technology Delhi, New Delhi, 401 016, India. ' College of Engineering, Pune, Maharashtra, 411 005, India
Abstract: Current-fed pulse width modulated (PWM) single stage push pull boost converter is proposed. The converter operates with zero voltage switching (ZVS). A simple auxiliary circuit which includes only one active switch provides ZVS operation to all switches, leading to reduced switching losses in the converter. The converter core can be transparently embedded inside current mode power factor controller. In this paper, operation of the converter core, auxiliary circuits, and design guide lines are presented. Experimental results on a laboratory prototype are presented. In addition, results with the converter core embedded inside power factor control strategies are also shown.
Keywords: power factor correction; boost converters; single stage; push pull; zero voltage switching; ZVS; power converters; constant frequency; pulse width modulation; PWM.
International Journal of Power Electronics, 2011 Vol.3 No.6, pp.652 - 664
Received: 11 Apr 2010
Accepted: 14 Jan 2011
Published online: 04 Oct 2011 *