Soft-switched DC/DC converter with PWM control

Author

Oruganti, Ramesh ; Heng, Phua Chee ; Guan, Jeffrey Tan Kian ; Choy, Liew Ah

Author_Institution

Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore

Volume

13

Issue

1

fYear

1998

fDate

1/1/1998 12:00:00 AM

Firstpage

102

Lastpage

114

Abstract

In this paper, a new power converter with two variations is proposed. A novel asymmetrical pulse-width-modulation (PWM) control scheme is used to control the power converter under constant switching frequency operation. The modes of operation for both variations are discussed. The DC characteristics, which can be used in the design of the power converters, are also presented. Two 50 W power converters were built to verify the characteristics of the converters. Due to the zero-voltage-switching (ZVS) operation of the switches and low device voltage and current stresses, these power converters have high full- and partial-load efficiencies. They are, therefore, potential candidates for high-efficiency high-density power supply applications

Keywords

DC-DC power convertors; PWM power convertors; field effect transistor switches; power MOSFET; power field effect transistors; power semiconductor switches; switching circuits; 50 W; DC characteristics; ZVS; asymmetrical PWM control scheme; constant switching frequency operation; power MOSFET switches; power conversion efficiency; soft-switched DC/DC power converter; zero-voltage-switching; DC-DC power converters; Low voltage; Power supplies; Pulse width modulation; Pulse width modulation converters; Stress; Switches; Switching converters; Switching frequency; Zero voltage switching;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.654964

Filename

654964