New Zero Voltage Transition PWM Converters

Author

Adib, Ehsan ; Farzaneh-Fard, Hosein

Author_Institution

Isfahan Univ., Isfahan

fYear

2006

fDate

15-17 Dec. 2006

Firstpage

801

Lastpage

806

Abstract

In this paper a new auxiliary circuit is introduced for buck, buck-boost, forward and flyback converters. This auxiliary circuit provides zero voltage switching condition for the main switch and diode while providing zero current switching condition for the auxiliary switch and diodes. The proposed ZVT PWM buck converter is analyzed and various converter operating modes are presented. A very simple design method for auxiliary circuit is discussed. Experimental results of ZVT buck converter from a 140 W laboratory prototype switching at 120 KHz are presented. Also the simulation results of a ZVT flyback converter are shown.

Keywords

PWM power convertors; switching convertors; zero current switching; zero voltage switching; ZVT PWM buck converter; auxiliary circuit; auxiliary diodes; buck-boost converters; flyback converters; forward converters; frequency 120 kHz; power 140 W; zero current switching condition; zero voltage switching condition; zero voltage transition PWM; Buck converters; Design methodology; Diodes; Laboratories; Pulse width modulation; Pulse width modulation converters; Switches; Switching circuits; Zero current switching; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Technology, 2006. ICIT 2006. IEEE International Conference on

Conference_Location

Mumbai

Print_ISBN

1-4244-0726-5

Electronic_ISBN

1-4244-0726-5

Type

conf

DOI

10.1109/ICIT.2006.372360

Filename

4237682