A compact AC/AC voltage regulator based on an AC/AC high frequency flyback converter

Author

Barbi, I. ; Fagundes, J.C. ; Kassick, E.V.

Author_Institution

Univ. Federal de Santa Cantarina, Florianopolis, Brazil

fYear

1991

fDate

24-27 Jun 1991

Firstpage

846

Lastpage

852

Abstract

The conventional DC-DC flyback converter is transformed in an AC-AC one by replacing the primary side transistor and the secondary side diode, by bidirectional switches, and replacing the DC input voltage by an AC one. As a result, an AC output voltage is generated, isolated from the source voltage by a small size high-frequency transformer. The output voltage is regulated by PWM to compensate for the input voltage and load variations. Principle of operation, theoretical analysis, design procedure and example, and simulation results are presented, along with laboratory experimental results. It is demonstrated that the proposed technique is suitable for high-power density isolated AC line voltage regulators

Keywords

power convertors; voltage regulators; AC/AC high frequency flyback converter; AC/AC voltage regulator; bidirectional switches; compensation; load variations; AC generators; Analog-digital conversion; DC-DC power converters; Diodes; Frequency; Pulse width modulation; Regulators; Switches; Switching converters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1991. PESC '91 Record., 22nd Annual IEEE

Conference_Location

Cambridge, MA

Print_ISBN

0-7803-0090-4

Type

conf

DOI

10.1109/PESC.1991.162774

Filename

162774