Design of a novel AC regulator

Author

Lee, Yim-Shu ; Cheng, David K W ; Cheng, Y.C.

Author_Institution

Dept. of Electron. Eng., Hong Kong Polytech., Hong Kong

Volume

38

Issue

2

fYear

1991

fDate

4/1/1991 12:00:00 AM

Firstpage

89

Lastpage

94

Abstract

A design in which an AC-to-AC electronic transformer is connected in series with the AC mains to provide a regulated AC output voltage is described. The approach reduces the required voltage and power ratings of the circuit components in the electronic transformer and indirectly increases the conversion efficiency. Since the transformer is designed to accept AC mains directly as the input, no rectifier or mains frequency filtering circuit is required. This, together with the high switching frequency, allows the design of small-size and high-efficiency AC regulators for practical use. An experimental 50 W regulator has been designed to give a typical efficiency of 96%

Keywords

transformers; voltage control; voltage regulators; 50 W; 96 percent; AC mains; AC regulator; AC-to-AC electronic transformer; conversion efficiency; high switching frequency; high-efficiency; power ratings; Capacitance; Circuits; Inductors; Inverters; Power dissipation; Reactive power; Regulators; Switches; Switching frequency; Virtual colonoscopy;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.88900

Filename

88900