A least squares method applied to multiphase switched capacitor converters

Alexander Kushnerov, Alexandre Yakovlev

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

The paper proposes a new approach to improve the performance of multiphase switched capacitor converters (SCC). It is based on the use of redundant SCC topologies, which are switched forward and backward. The performance is improved by increasing the efficiency and simultaneous reducing the output current ripple. The SCC is considered as an analog computer that solves the system of linear equations by an iterative method. The SCC output voltage is assumed to be constant. This means that the corresponding system has no solution. It is shown that under this condition, the SCC operating in the no-charge mode solves the system by a least-squares method. This allows finding the average current in each SCC topology and consequently, an analytical expression for the equivalent resistance. The obtained theoretical results agree well with the results of simulations.

Original languageEnglish
Title of host publication2015 European Conference on Circuit Theory and Design, ECCTD 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479998777
DOIs
StatePublished - 16 Oct 2015
Externally publishedYes
EventEuropean Conference on Circuit Theory and Design, ECCTD 2015 - Trondheim, Norway
Duration: 24 Aug 201526 Aug 2015

Publication series

Name2015 European Conference on Circuit Theory and Design, ECCTD 2015

Conference

ConferenceEuropean Conference on Circuit Theory and Design, ECCTD 2015
Country/TerritoryNorway
CityTrondheim
Period24/08/1526/08/15

Keywords

  • Efficiency
  • inconsistent system
  • least squares method
  • ripple
  • switched capacitor converter
  • underrelaxation

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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