Analysis of the novel soft-switching DC-DC converter with low output voltage

Author

Watanabe, Haruo ; Matsuo, Hirofumi ; Hatakeyama, Haruhiko

Author_Institution

Shindengen Electr. Manuf. Co. Ltd., Saitama, Japan

Volume

3

fYear

2000

fDate

2000

Firstpage

1503

Abstract

The purpose of this paper is to analyze in detail the quasi-ZVS behavior of the main switches and the commutation behavior of the synchronous rectifier switches in a novel soft-switching DC-DC converter with high efficiency by using equivalent circuits. The proposed converter is composed of boost and half-bridge circuits with wide input voltage range and low output voltage. As a result of analysis, one can optimize the converter and realize very high efficiency of 93.1% at 48 V DC input and 3.3 V/15 A DC output

Keywords

DC-DC power convertors; bridge circuits; commutation; equivalent circuits; switching circuits; 15 A; 3.3 V; 48 V; 93.1 percent; boost circuits; commutation behavior; equivalent circuits; half-bridge circuits; input voltage range; low output voltage; main switches; quasi-ZVS behavior; soft-switching DC-DC power converter; synchronous rectifier switches; Circuit topology; DC-DC power converters; FETs; Inductance; Low voltage; Rectifiers; Switches; Switching circuits; Switching converters; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2000. PESC 00. 2000 IEEE 31st Annual

Conference_Location

Galway

ISSN

0275-9306

Print_ISBN

0-7803-5692-6

Type

conf

DOI

10.1109/PESC.2000.880529

Filename

880529