Design oriented analysis of a novel soft-switching DC-DC converter with 2V/20A DC output

Author

Watanabe, Haruo ; Matsuo, Hirofumi

Author_Institution

Graduated Sch. of Sci. & Eng., Nagasaki Univ., Japan

Volume

2

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

884

Abstract

The purpose of this paper is to present a design-oriented analysis of a novel high efficient DC-DC power converter with low output voltage, which was proposed by authors previously and is composed of boost and half-bridge circuits. Based on the analysis, they clarify the circuit design procedure of the power converter. Especially, they show the optimized driving method of synchronous rectifier FETs. As a result, they realize a superior DC-DC converter as an on-board power supply with a very compact size of 70.75 mm in length, 50.5 mm in width and 8.5 mm in height, and very high efficiency of 91.8% at 48V DC input and 2V/20A DC output

Keywords

AC-DC power convertors; DC-DC power convertors; bridge circuits; field effect transistor switches; power field effect transistors; power semiconductor switches; power supplies to apparatus; switching circuits; 2 V; 20 A; 50.5 mm; 70.75 mm; 8.5 mm; 91.8 percent; boost circuits; circuit design procedure; compact size; design oriented analysis; half-bridge circuits; on-board power supply; optimized driving method; soft-switching DC-DC power converter; synchronous rectifier FETs; DC-DC power converters; FETs; Power generation; Power supplies; Rectifiers; Semiconductor diodes; Strontium; Switches; Switching circuits; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual

Conference_Location

Vancouver, BC

ISSN

0275-9306

Print_ISBN

0-7803-7067-8

Type

conf

DOI

10.1109/PESC.2001.954231

Filename

954231