An asymmetrical half-bridge forward converter with current doubler

Author

Jangwanitlert, A. ; Songboonkaew, J.

Author_Institution

Fac. of Eng., King Mongkut´´s Inst. of Technol. Ladkrabang, Bangkok, Thailand

fYear

2010

fDate

19-21 May 2010

Firstpage

1216

Lastpage

1220

Abstract

This paper presents the analysis and design of an asymmetrical half-bridge forward converter with current doubler. This converter can minimize the switching power loss by realizing the zero-voltage-switching (ZVS) during the turn-on conditions. The principle of the converter operation is explained and analyzed. In order to achieve the ZVS conditions, the required interlock delay time between gate signals of two switches, the leakage transformer inductance is needed. The simulation results from a 30 V/20 A 80 kHz are also presented, which is used to verify the theoretical analysis.

Keywords

bridge circuits; switching convertors; zero voltage switching; ZVS condition; asymmetrical half-bridge forward converter; current doubler; interlock delay time; leakage transformer inductance; switching power loss; zero-voltage-switching; Bridge circuits; Delay effects; Inductance; Pulse width modulation; Pulse width modulation converters; Resonance; Switches; Switching circuits; Switching converters; Zero voltage switching; current doubler; half-bridge; zero-voltage-switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering/Electronics Computer Telecommunications and Information Technology (ECTI-CON), 2010 International Conference on

Conference_Location

Chaing Mai

Print_ISBN

978-1-4244-5606-2

Electronic_ISBN

978-1-4244-5607-9

Type

conf

Filename

5491671