Analysis of the zero-current-switched quasi-resonant SEPIC used as power factor preregulator with voltage-follower control

Author

Sebastian, J. ; Martínez, J.A. ; Alonso, J.M. ; Cobos, J.A.

Author_Institution

Dept. de Ingenieria Electr., Oviedo Univ., Spain

fYear

1994

fDate

21-25 Aug 1994

Firstpage

3

Lastpage

7

Abstract

The use of a zero current switched-quasi resonant (ZCSQR) SEPIC (single ended primary inductance converter) with half-wave switch working as a power factor preregulator (PFP) is studied in this paper. The analysis carried out demonstrates that this converter shows excellent characteristics to obtain a high power factor without using any input current feedback loop and also that it allows high switching frequency to operate because it integrates transformer and rectifier diode parasitics into the power topology

Keywords

DC-DC power convertors; power factor correction; resonant power convertors; switching circuits; voltage control; ZCS; half-wave switch; high power factor; high switching frequency; power factor preregulator; power topology; rectifier diode parasitics; single ended primary inductance converter; transformer parasitics; zero-current-switched quasi-resonant SEPIC; Diodes; Feedback loop; Inductance; Reactive power; Rectifiers; Resonance; Switches; Switching converters; Switching frequency; Topology;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Congress, 1994. Technical Proceedings. CIEP '94., 3rd International

Conference_Location

Puebla

Print_ISBN

0-7803-2068-9

Type

conf

DOI

10.1109/CIEP.1994.494393

Filename

494393