Power factor correction circuit with a new modified SEPIC converter

Author

Pop, Ovidiu ; Chindris, Gabriel ; Grama, Alin ; Hurgoi, Florin

Author_Institution

Dept. of Appl. Electron., Tech. Univ. Cluj-Napoca, Romania

fYear

2001

fDate

2001

Firstpage

117

Lastpage

120

Abstract

This paper presents a new topology for a SEPIC converter used in power factor correction circuits. The conventional SEPIC converter was primarily designed to provide a nonpulsating input current, operating with both inductors in continuous current mode and only DC-DC conversion was considered. The modified SEPIC converter is designed to operate as an AC-DC converter and can be viewed as a cascade of a modified boost converter and a buck-boost converter. The boost converter operates in discontinuous current mode, while the buck-boost converter operates in continuous current mode. Since a high power factor is naturally achieved in this way, a simple feedback control technique is needed in order to regulate the output voltage. The paper also presents a calculus method for the power factor and total harmonic distortion factor for the proposed converter

Keywords

AC-DC power convertors; DC-DC power convertors; circuit feedback; harmonic distortion; network topology; power factor correction; power inductors; AC-DC converter operation; DC-DC conversion; SEPIC converter; boost converter; buck-boost converter; calculus method; continuous current mode inductor operation; continuous current mode operation; discontinuous current mode operation; feedback control technique; modified SEPIC converter; modified SEPIC converter design; modified boost converter/buck-boost converter cascade; nonpulsating input current; output voltage regulation; power factor; power factor correction circuit; power factor correction circuits; total harmonic distortion factor; AC-DC power converters; Analog-digital conversion; Calculus; Circuit topology; DC-DC power converters; Feedback control; Inductors; Power factor correction; Reactive power; Total harmonic distortion;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics Technology: Concurrent Engineering in Electronic Packaging, 2001. 24th International Spring Seminar on

Conference_Location

Calimanesti-Caciulata

Print_ISBN

0-7803-7111-9

Type

conf

DOI

10.1109/ISSE.2001.931026

Filename

931026