GaN-based high gain soft switching coupled-inductor boost converter

Jinia Roy, Yinglai Xia, Raja Ayyanar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

This paper explores a coupled inductor based interleaved boost converter with soft-switching auxiliary circuit for high gain DC-DC application. The converter is capable of offering high gain with a flexible choice of turns ratio of the coupled inductor but simultaneously maintaining a reduced voltage stress on the main switch. Either a passive or active clamp circuit can be used to limit the switch voltage stress arising due to the leakage of the coupled inductor. The additional auxiliary zero-voltagetransition (ZVT) circuit allows the switching node current to be diverted to an auxiliary inductor and a transistor placed across the main inductor, thus ensuring zero voltage turn-on of the main switch and improved converter efficiency. The auxiliary devices operate at zero current switching and this addition has no effect on the control of the main boost circuit. A 300 W GaN based hardware prototype with input from 30 V - 40 V and 320 V output and operating at switching frequency of 200/300 kHz has been developed to validate the converter's operation in hardware.

Original languageEnglish (US)
Title of host publication2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1687-1693
Number of pages7
ISBN (Electronic)9781509029983
DOIs
StatePublished - Nov 3 2017
Event9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017 - Cincinnati, United States
Duration: Oct 1 2017Oct 5 2017

Publication series

Name2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
Volume2017-January

Other

Other9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017
Country/TerritoryUnited States
CityCincinnati
Period10/1/1710/5/17

Keywords

  • Active clamp
  • Boost converter
  • Coupled inductor
  • GaN converter
  • High voltage step up
  • Interleaved boost
  • Leakage energy
  • Multi-phase converter
  • Soft switching
  • Wide bandgap device.

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Renewable Energy, Sustainability and the Environment
  • Control and Optimization

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