Design and performance evaluation of low-voltage/high-current DC/DC on-board modules

Author

Panov, Yuri ; Jovanovic, Milan

Author_Institution

Power Electron. Lab., Delta Products Corp., NC, USA

Volume

1

fYear

1999

fDate

14-18 Mar 1999

Firstpage

545

Abstract

The topology selection, design and performance evaluation of an on-board DC/DC converter, which delivers power from a 48-V input to a 1.2-1.65 V/70 A microprocessor load, are presented. It was shown that the symmetrical half-bridge topology with the current doubler and synchronous rectifiers is a suitable approach for this application. The measured full-load efficiency of a 200-kHz experimental half-bridge converter was higher than 82% in the entire output and input voltage range

Keywords

DC-DC power convertors; bridge circuits; computer power supplies; microcomputers; rectifying circuits; 1.2 to 1.65 V; 200 kHz; 48 V; 70 A; 82 percent; DC/DC on-board modules; current doubler; full-load efficiency; half-bridge converter; high-current; low-voltage; microprocessor load; symmetrical half-bridge topology; synchronous rectifiers; topology design; topology performance; topology selection; Capacitance; Circuit topology; Energy consumption; Filters; Microprocessors; Power generation; Power supplies; Rectifiers; Transient response; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 1999. APEC '99. Fourteenth Annual

Conference_Location

Dallas, TX

Print_ISBN

0-7803-5160-6

Type

conf

DOI

10.1109/APEC.1999.749734

Filename

749734