A self-driven soft-switching voltage regulator for future microprocessors

Author

Zhou, Jinghai ; Xu, Ming ; Sun, Julu ; Lee, Fred C.

Author_Institution

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

Volume

20

Issue

4

fYear

2005

fDate

7/1/2005 12:00:00 AM

Firstpage

806

Lastpage

814

Abstract

In conventional high frequency 12-V input voltage regulators (VR), large gate driver loss and body diode conduction loss raise crucial challenges to its gate driver implementation. The proposed self-driven topologies are basically buck-derived multiphase interleaving soft switching topologies, which eliminate the synchronous rectifier MOSFET drivers and save driving loss and body diode loss, so that it is a high efficiency, high power density solution for future microprocessors. A 1U four-phase 1.3-V/100-A VRM running at 1MHz demonstrates its advantages (cost, size and efficiency) over the conventional multiphase buck converter.

Keywords

driver circuits; microprocessor chips; network topology; switching convertors; voltage regulators; 1 MHz; 1.3 V; 100 A; 12 V; MOSFET drivers; body diode conduction; bulk-derived multiphase interleaving soft switching topology; diodes loss; large gate driver loss; microprocessors; self-driven soft-switching voltage regulator; self-driven topology; Diodes; Frequency; Interleaved codes; MOSFET circuits; Microprocessors; Rectifiers; Regulators; Topology; Virtual reality; Voltage; Non-isolated; self-driven; synchronous rectifier; voltage regulator module (VRM);

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2005.850924

Filename

1461462