Improving dynamic response of power-factor preregulators by using two-input high-efficient postregulators

Author

Sebastian, Javier ; Villegas, Pedro J. ; Nuno, Fernando ; García, Oscar ; Arau, Jaime

Author_Institution

Dept. de Ingenieria Electrica, Electron., de Computadores y Sistemas, Oviedo Univ., Spain

Volume

12

Issue

6

fYear

1997

fDate

11/1/1997 12:00:00 AM

Firstpage

1007

Lastpage

1016

Abstract

A new method to improve the dynamic response of power-factor preregulators (PFPs) is developed in this paper. The method is based on the use of a very high efficient postregulator with two inputs instead of only one. This two-input postregulator exhibits very high efficiency due to the fact that only a part of the total power undergoes a power conversion process. Such postregulators need two-output PFPs at their inputs, which can be easily obtained in PFPs with transformers or with two PFPs working in parallel

Keywords

AC-DC power convertors; dynamic response; power convertors; power factor correction; power transformers; rectifying circuits; dynamic response; efficiency; power conversion process; power factor correctors; power-factor preregulators; transformers; two-input postregulators; Capacitors; DC-DC power converters; Helium; Reactive power; Rectifiers; Stress; Switches; Topology; Transformers; Voltage;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.641499

Filename

641499