Magnetizing-current-assisted wide ZVS range isolated DC-DC converters

Author

Guilherme da Rocha, Otoniel ; Illa Font, Carlos Henrique ; Agostini, Eloi

Author_Institution

Dept. of Electron. Eng., Fed. Univ. of Technol. - Parana, Ponta Grossa, Brazil

fYear

2013

fDate

27-31 Oct. 2013

Firstpage

236

Lastpage

242

Abstract

This paper presents the analysis of an asymmetrical half-bridge (ASHB-PWM) DC-DC converter with wide ZVS range. The wide ZVS range is achieved with the designing of a desired magnetizing inductance, which value does not significantly increase conduction losses in the primary side. The proposal advantage is low cost, since any additional passive or active component is needed. The theoretical analysis, the simulation results and experimental results from a 500 W converter are presented. The converter was designed for a 300 V of input voltage, 60 V of output voltage and switching frequency of 50 kHz.

Keywords

DC-DC power convertors; PWM power convertors; zero voltage switching; ASHB-PWM converter; active component; asymmetrical half-bridge DC-DC converter; conduction loss; frequency 50 kHz; isolated DC-DC converters; magnetizing current; magnetizing inductance; passive component; power 500 W; primary side; switching frequency; voltage 300 V; voltage 60 V; wide ZVS range; Equations; Inductance; Mathematical model; Power generation; Prototypes; Switching frequency; Zero voltage switching; High efficiency; Isolated converter; Magnetizing inductance; PWM DC-DC converter; Wide ZVS range;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Conference (COBEP), 2013 Brazilian

Conference_Location

Gramado

ISSN

2175-8603

Type

conf

DOI

10.1109/COBEP.2013.6785121

Filename

6785121