Analysis of conducted EMI emissions on a soft-switched full bridge dc-dc converter with a fixed switching frequency

Author

Jangwanitlert, A. ; Balda, J.C. ; Olejniczak, K.J.

Author_Institution

Dept. of Electr. Eng., Arkansas Univ., AR, USA

Volume

3

fYear

2003

fDate

2-6 Nov. 2003

Firstpage

2906

Abstract

This paper presents a comparative study between a soft-switched full bridge DC-DC converter using phase-shifted pulse-width-modulation (PSFB-PWM) and another one with PWM control without phase-shifted strategy. The converter using phase-shifted control achieves zero-voltage and zero-current switching (ZVZCS), whereas the other without using phase-shifted control achieves ZVS. The paper describes the operating characteristics and analyzes the performance of both circuits, includes a comparison of conducted electromagnetic interference (EMI) emissions from both converters, and provides experimental results that are in good agreement with the theoretical ones.

Keywords

DC-DC power convertors; PWM power convertors; bridge circuits; electromagnetic interference; interference suppression; phase control; switching convertors; conducted electromagnetic interference emissions; fixed switching frequency; phase-shifted pulse-width-modulation; soft-switched full bridge dc-dc converter; zero-voltage and zero-current switching; Bridge circuits; DC-DC power converters; Electromagnetic analysis; Electromagnetic interference; Pulse width modulation; Pulse width modulation converters; Switching converters; Switching frequency; Zero current switching; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, 2003. IECON '03. The 29th Annual Conference of the IEEE

Print_ISBN

0-7803-7906-3

Type

conf

DOI

10.1109/IECON.2003.1280709

Filename

1280709