New PWM switched-mode converter topologies

Author

Hua, Gui-Chao ; Huang, Shi-Peng

Author_Institution

Dept. of Electr. Eng., Zhejiang Univ., Hangzhou, China

fYear

1988

fDate

11-14 April 1988

Firstpage

150

Abstract

Two augmented switching cells are proposed from which four novel topologies can be derived: an augmented buck converter, and augmented boost converter, a novel switching power amplifier, and a novel switching controlled rectifier. The augmented buck and the augmented boost converters realize higher step-down and step-up ratios, respectively, under a given switch duty ratio by proper design of the turn ratios of the transformer and coupled inductor. The switching power amplifier achieves four-quadrant output by the use of two bidirectional current switches and a single power supply, while the inverse converter can be used as a switching controlled rectifier. The experimental verification of the power amplifier is presented.<>

Keywords

power amplifiers; power convertors; pulse width modulation; rectifying circuits; switching circuits; PWM switched-mode converter topologies; augmented boost converter; augmented buck converter; augmented switching cells; bidirectional current switches; inverse converter; switching controlled rectifier; switching power amplifier; Buck converters; Inductors; Power amplifiers; Power supplies; Pulse width modulation; Pulse width modulation converters; Rectifiers; Switches; Switching converters; Topology;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1988. PESC '88 Record., 19th Annual IEEE

Conference_Location

Kyoto, Japan

Type

conf

DOI

10.1109/PESC.1988.18128

Filename

18128