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Asymmetrical PWM Scheme Balancing Voltages Dual-outputs Interleaved Four-switch Buck-Boost DC-DC Converter

  • Kyungpook National University

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

14 Scopus citations

Abstract

This paper proposed a dual-outputs interleaving buck-boost (DOBB) dc-dc converter and a proper PWM scheme for the converter. With the conventional PWM scheme, a DOBB converter inherits natural output voltage balancing, but only when D$\geq$0.5 (boost region). The proposed asymmetrical PWM scheme helps the DOBB converter eliminate the duty ratio limitation. As a result, the two output voltages are automatically balanced even with unbalanced load conditions without any dedicated controller and/or auxiliary circuits in a whole range of duty ratio. A 1.6-kW prototype converter is built and tested to verify the performance of the proposed converter.

Original languageEnglish
Title of host publicationICCE 2022 - 2022 IEEE 9th International Conference on Communications and Electronics
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages482-487
Number of pages6
ISBN (Electronic)9781665497442
DOIs
StatePublished - 2022
Event9th IEEE International Conference on Communications and Electronics, ICCE 2022 - Nha Trang City, Viet Nam
Duration: 27 Jul 202229 Jul 2022

Publication series

NameICCE 2022 - 2022 IEEE 9th International Conference on Communications and Electronics

Conference

Conference9th IEEE International Conference on Communications and Electronics, ICCE 2022
Country/TerritoryViet Nam
CityNha Trang City
Period27/07/2229/07/22

Keywords

  • buck-boost converter
  • DC-DC converter
  • dual outputs
  • interleaving
  • load unbalance
  • PWM scheme
  • voltage balancing

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