A high-power-density wide-input-voltage-range isolated DC-DC converter having a MultiTrack architecture

Minjie Chen, Khurram K. Afridi, Sombuddha Chakraborty, David J. Perreault

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

14 Scopus citations

Abstract

This paper proposes a MultiTrack power conversion architecture that represent a new way of combining switched-capacitor circuits and magnetics. The MultiTrack architecture reduces the voltage ratings on devices, reduces the voltage regulation stress of the system, improves the component utilization, and reduces the sizes of passive components. This architecture is suitable for power conversion applications that require both isolation and wide voltage conversion range. An 18 V to 80 V input, 5 V, 15 A output, 800 kHz, 0.93 inch2 (1/16 brick equivalent) isolated dc-dc converter has been built and tested to verify the effectiveness of this architecture. By utilizing GaN switches, operating at higher frequency, and employing the MultiTrack architecture, the prototype converter achieves a power density of 453 W/inch3 and a peak efficiency of 91.3%. This power density is 3x higher than the power density of the state-of-the-art commercial converters with comparable efficiency performance across the wide operation range.

Original languageEnglish (US)
Title of host publication2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2017-2026
Number of pages10
ISBN (Electronic)9781467371506
DOIs
StatePublished - Oct 27 2015
Externally publishedYes
Event7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015 - Montreal, Canada
Duration: Sep 20 2015Sep 24 2015

Publication series

Name2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015

Other

Other7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015
CountryCanada
CityMontreal
Period9/20/159/24/15

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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