Asymmetrical phase-shifted full-bridge

Author

Fiedler, Alfred ; Grotstollen, Horst

Author_Institution

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

Volume

3

fYear

1995

fDate

8-12 Oct 1995

Firstpage

2408

Abstract

In comparison to forward-converters bridge topologies make use of parasitic components for resonant transition without need of additional clamping circuitry. Thus, they are privileged in building high frequency high power converters, even if high efficiency is required. This paper introduces a new modulation scheme for H-bridges, which combines PWM and phase-modulation. An analysis of the ideal circuit is presented together with design guidelines. Some experimental data for a converter prototype are given for 300 V/5 V-750 W, 250 kHz,

Keywords

PWM power convertors; bridge circuits; phase modulation; resonant power convertors; 250 kHz; 300 V; 5 V; 750 W; H-bridges; PWM; asymmetrical phase-shifted full-bridge; bridge topologies; high efficiency; high frequency high power converters; modulation scheme; parasitic components; phase-modulation; resonant transition; Bridge circuits; Buildings; Circuit topology; Clamps; Frequency conversion; Guidelines; Phase modulation; Pulse width modulation; RLC circuits; Resonance;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1995. Thirtieth IAS Annual Meeting, IAS '95., Conference Record of the 1995 IEEE

Conference_Location

Orlando, FL

ISSN

0197-2618

Print_ISBN

0-7803-3008-0

Type

conf

DOI

10.1109/IAS.1995.530609

Filename

530609