A Modified Fixed Current-Mode Controller for Improved Performance in Quadratic Boost Converters

Chok You Chan, Satyajit Chincholkar, Wentao Jiang

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

A modified fixed current-mode (CM) control for the quadratic boost converter in the presence of an uncertain load resistance is presented. Specifically, the existing CM control law is modified to include an additional proportional action and using a normalized output error in order to achieve improved performance. The extra proportional action helps to improve the relative stability. An approximate stability analysis was carried out to gain some useful insight into the proposed CM controlled system. Also, experimental results comparing the performance of the proposed controller with that of the traditional CM controllers under different operating conditions are presented.

Original languageEnglish
Article number8843949
Pages (from-to)2014-2018
Number of pages5
JournalIEEE Transactions on Circuits and Systems II: Express Briefs
Volume67
Issue number10
DOIs
StatePublished - Oct 2020
Externally publishedYes

Keywords

  • Current-mode control
  • quadratic boost converter

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