Investigation of asymmetrical phase-shifted full bridge [power convertors]

Author

Fiedler, Alfred ; Grotstollen, Horst

Author_Institution

Inst. for Power Electron. & Electr. Drives, Paderborn Univ., Germany

Volume

1

fYear

1995

fDate

6-10 Nov 1995

Firstpage

434

Abstract

In comparison to forward power converters, bridge topologies make use of parasitic components for resonant transition without the need of additional clamping circuitry. Thus, they are privileged in building high frequency high power converters, even if high efficiency is required. This paper briefly introduces a new modulation scheme for H-bridges, which combines PWM and phase modulation. The paper focuses on the discussion of experimental data for a power converter prototype built for 200 V...480 V/5 V-750 W, 250 kHz

Keywords

AC-DC power convertors; PWM power convertors; bridge circuits; field effect transistor switches; phase modulation; phase shifters; power MOSFET; power field effect transistors; power semiconductor switches; rectifying circuits; resonant power convertors; switching circuits; 200 to 480 V; 250 kHz; 5 V; 750 W; H-bridges; PWM; asymmetrical phase-shifted full bridge power convertor; bridge topologies; efficiency; high frequency; modulation scheme; parasitic components; phase modulation; power MOSFET switches; resonant transition; Bridge circuits; Circuit topology; Power electronics; Power transformers; Prototypes; Pulse width modulation; Resonance; Switches; Switching circuits; Switching loss;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, Control, and Instrumentation, 1995., Proceedings of the 1995 IEEE IECON 21st International Conference on

Conference_Location

Orlando, FL

Print_ISBN

0-7803-3026-9

Type

conf

DOI

10.1109/IECON.1995.483448

Filename

483448