Applying transformer concept to nonisolated voltage regulators significantly improves the efficiency and transient response

Author

Wei, Jia ; Yao, Kaiwei ; Xu, Ming ; Lee, Fred C.

Author_Institution

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

Volume

4

fYear

2003

fDate

15-19 June 2003

Firstpage

1599

Abstract

A voltage regulator (VR) is a DC-DC converter dedicated to powering the microprocessors in today´s computers. The multiphase buck converter, as the current solution, faces great challenges for future use in VRs. This paper applies the transformer concept to generate several families of new converters, therefore providing opportunities to improve the efficiency while maintaining good transient response. Topology derivation, analysis and experimental results are presented. Test results verify the theoretical prediction.

Keywords

DC-DC power convertors; computer power supplies; microcomputers; transformers; transient response; voltage regulators; DC-DC converter; efficiency improvement; microprocessors; multiphase buck converter; nonisolated voltage regulators; transformer concept; transient response; Buck converters; Microprocessors; Regulators; Silver; Testing; Thermal management; Topology; Transient response; Virtual reality; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialist Conference, 2003. PESC '03. 2003 IEEE 34th Annual

ISSN

0275-9306

Print_ISBN

0-7803-7754-0

Type

conf

DOI

10.1109/PESC.2003.1217697

Filename

1217697