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Series Capacitor Converter with MHz Switching Frequency Based on GaN HEMT

  • Harbin Institute of Technology

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

Abstract

This paper applies GaN HEMT to series capacitor buck converters and increases the switching frequency to 1MHz, greatly improving the power density of the converter. The advantages brought by the new wide-bandgap semiconductor device were analyzed, the driving circuit was optimized, and a 1MHz improved two-phase Buck high-frequency converter with 48V input, 12V/240W output and peak efficiency of 98.5% was designed and built. The effective power density reaches 218.5 W/in3.In the rated state, the efficiency of the prototype is 93.4%.

Original languageEnglish
Title of host publication2022 IEEE Industrial Electronics and Applications Conference, IEACon 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages7-12
Number of pages6
ISBN (Electronic)9781665480062
DOIs
StatePublished - 2022
Event3rd IEEE Industrial Electronics and Applications Conference, IEACon 2022 - Virtual, Online, Malaysia
Duration: 3 Oct 20224 Oct 2022

Publication series

Name2022 IEEE Industrial Electronics and Applications Conference, IEACon 2022

Conference

Conference3rd IEEE Industrial Electronics and Applications Conference, IEACon 2022
Country/TerritoryMalaysia
CityVirtual, Online
Period3/10/224/10/22

Keywords

  • GaN HEMT
  • high frequency
  • high power density
  • series capacitor converter

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