Fast-scale instability of single-stage power-factor-correction power supplies

Xiaoqun Wu, Chi Kong Tse, O. Dranga, Junan Lu

Research output: Journal article publicationConference articleAcademic researchpeer-review

5 Citations (Scopus)


This paper describes the fast-scale bifurcation phenomena of a single-stage power-factor-correction (PFC) power supply which is commonly used in low power applications. The circuit employs a cascade configuration of a boost converter and a forward converter, which share an active switch and operate in discontinuous conduction mode, to provide input PFC and tight output regulation. Main findings are illustrated by computer simulations as well as theoretical analysis. This work provides a convenient means of predicting stability boundaries which can facilitate the selection of practical parameter values for maintaining stable operation.
Original languageEnglish
Article number1465128
Pages (from-to)2477-2480
Number of pages4
JournalProceedings - IEEE International Symposium on Circuits and Systems
Publication statusPublished - 1 Dec 2005
EventIEEE International Symposium on Circuits and Systems 2005, ISCAS 2005 - Kobe, Japan
Duration: 23 May 200526 May 2005

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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