Fast-Scale Instability of Single-Stage Power-Factor-Correction Power Supplies

Document Type

Journal Article

Publisher

IEEE

Faculty

Faculty of Computing, Health and Science

School

School of Engineering

RAS ID

9378

Comments

Wu, X., Tse, C. K., Dranga, O., & Lu, J. (2006). Fast-scale instability of single-stage power-factor-correction power supplies. IEEE Transactions on Circuits and Systems I: Regular Papers, 53(1), 204-213.

Abstract

This paper describes the fast-scale bifurcation phenomena of a single-stage power-factor-correction (PFC) power supply which is a cost effective design for 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 results are illustrated by "exact" circuit simulations as well as theoretical analysis based on the use of Jacobians. This work provides a convenient means of predicting stability boundaries which can facilitate the selection of practical parameter values for maintaining stable operation.

DOI

10.1109/TCSI.2005.854293

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Link to publisher version (DOI)

10.1109/TCSI.2005.854293