Design of high-input voltage regulator modules with a novel integrated magnetics

Author

Xu, Peng ; Lee, Fred C.

Author_Institution

Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA

Volume

1

fYear

2001

fDate

2001

Firstpage

262

Abstract

A novel integrated magnetic structure was proposed to improve the performance of high-input voltage regulator modules (VRMs) by significantly reducing the leakage inductance of magnetics. Another benefits of using the proposed structure include reduced core loss, simplified manufacture process and reduction of the primary current ripple. As a result, the size and cost of VRMs could be reduced greatly. The concept was demonstrated on a push-pull forward VRM, which delivers power from a 48-V input to a 1.2-1.5 V/70 A microprocessor load

Keywords

DC-DC power convertors; computer power supplies; harmonic distortion; load (electric); magnetic leakage; microprocessor chips; power conversion harmonics; power transformers; voltage regulators; 1.2 to 1.5 V; 48 V; 70 A; DC/DC power conversion; core loss; high-input voltage regulator module design; integrated magnetic structure; integrated magnetics; leakage inductance reduction; manufacture process; microprocessor load; primary current ripple reduction; push-pull forward VRM; Circuit topology; Inductance; Inductors; Magnetics; Microprocessors; Power conversion; Rectifiers; Regulators; Transient response; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2001. APEC 2001. Sixteenth Annual IEEE

Conference_Location

Anaheim, CA

Print_ISBN

0-7803-6618-2

Type

conf

DOI

10.1109/APEC.2001.911658

Filename

911658