A self-resonant-PWM boost converter with unity power factor operation by using a bang-bang current control strategy with fixed switching frequency

Author

Toffano, R., Jr. ; Treviso, C.H. ; Farias, V.J. ; Vieira, J.B., Jr. ; de Freitas, L.C.

Author_Institution

Dept. de Engenharia Electr., Univ. Federal de Uberlandia, Brazil

Volume

1

fYear

1996

fDate

12-15 May 1996

Firstpage

549

Abstract

A boost converter operating with high power factor and without commutation losses is presented in this paper. The almost unity power factor operation is obtained by using a bang-bang hysteresis current waveshaping technique with fired switching frequency. A self-resonant PWM auxiliary circuit is incorporated in the hard boost converter and a lossless commutation is performed. The operational characteristics of the converter are verified by simulation

Keywords

AC-DC power convertors; PWM power convertors; bang-bang control; commutation; electric current control; nonlinear network analysis; power factor; rectifying circuits; bang-bang current control strategy; bang-bang hysteresis current waveshaping; fixed switching frequency; lossless commutation; self-resonant-PWM boost converter; single phase boost rectifier; unity power factor operation; Capacitors; Hysteresis; Inductors; Pulse width modulation; Reactive power; Resonance; Switches; Switching converters; Switching frequency; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1996. ISCAS '96., Connecting the World., 1996 IEEE International Symposium on

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-3073-0

Type

conf

DOI

10.1109/ISCAS.1996.540006

Filename

540006