A Fixed-Frequency Pulsewidth Modulation Based Quasi-Sliding-Mode Controller for Buck Converters

Siew-Chong Tan*, Y. M. Lai, Chi K. Tse, Martin K. H. Cheung

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

240 Citations (Scopus)

Abstract

This paper presents the design and analysis of a fixed-frequency pulsewidth modulation (PWM)-based quasi-sliding-mode voltage controller for buck converters from a circuit design perspective. A practical design approach that aims at systematizing the procedure for the selection of the control parameters is presented. In addition, a simple analog form of the controller for practical realization is provided. The resulting controller exhibits the same structure as a PWM proportional derivative (PD) linear controller, but with an additional component consisting of the instantaneous input voltage and the instantaneous output voltage. Simulation and experimental results show that the performance of the converter agrees with the theoretical design. © 2005 IEEE.
Original languageEnglish
Pages (from-to)1379-1392
JournalIEEE Transactions on Power Electronics
Volume20
Issue number6
Online published7 Nov 2005
DOIs
Publication statusPublished - Nov 2005
Externally publishedYes

Research Keywords

  • Buck converter
  • fixed-frequency
  • hysteresis-modulation
  • pulsewidth modulation (PWM)
  • quasi-sliding-mode (QSM)
  • sliding-mode (SM) control

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