Power factor preregulators employing the flyback and zeta converters in FM mode

Author

Uceda, J. ; Sebastián, J. ; Dos Reis, F.S.

Author_Institution

Div. de Ingenieria Electron., Univ. Politecnica de Madrid, Spain

fYear

1996

fDate

14-17 Oct 1996

Firstpage

132

Lastpage

137

Abstract

The flyback and zeta converters can work as power factor preregulators (PFP). These converters can be designed to obtain unitary power factor, that is, they are resistance emulators. In this paper, a method for high frequency electromagnetic interference reduction using the frequency modulation (FM) approach is described for these converters. Results show that a reduction of conducted electromagnetic interferences (EMI) generated by these converters is possible using the FM technique. The price for this EMI reduction is a small reduction in the power factor (PF)

Keywords

DC-DC power convertors; electromagnetic interference; frequency modulation; interference suppression; power factor correction; FM technique; conducted EMI reduction; conducted electromagnetic interference; flyback converter; frequency modulation; high frequency electromagnetic interference reduction; power factor preregulators; resistance emulators; unitary power factor; zeta converter; Capacitors; Diodes; Frequency modulation; Power harmonic filters; Production facilities; Reactive power; Switched-mode power supply; Switches; Switching frequency; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Congress, 1996. Technical Proceedings. CIEP '96., V IEEE International

Conference_Location

Cuernavaca

Print_ISBN

0-7803-3633-X

Type

conf

DOI

10.1109/CIEP.1996.618526

Filename

618526