High Frequency Wide Output Range Boost-Flyback Converter with Zero Voltage Switching

Yuan Liu, Yi Dou, Mingxing Du, Kexin Wei, Hurley Gerard, Michael A. E. Andersen, Ziwei Ouyang

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Abstract

DC-DC converters with high step-up capability are increasingly used in sustainable energy, aerospace and high voltage direct current (HVDC) systems. This paper presents a high voltage step-up dc-dc converter with low voltage stress on the switches and with a wide output range. High-frequency operation with zero voltage switching (ZVS) may be accomplished, in order to shrink the size and to increase the efficiency of the converter. ZVS turn-on is possible in all the switches by the
same principle as an active clamp structure. The detailed ZVS condition and design considerations are discussed in the paper. A 100W 28V to maximum 400V prototype is designed and its peak efficiency of 95% has been achieved
Original languageEnglish
Title of host publicationProceedings of 2nd IEEE International Power Electronics and Application Conference and Exposition
Number of pages6
PublisherIEEE
Publication date2018
ISBN (Print)978-1-5386-6054-6
DOIs
Publication statusPublished - 2018
Event2nd IEEE International Power Electronics and Application Conference and Exposition - Crowne Plaza Shenzhen Longgang City Centre, Shenzhen, China
Duration: 4 Nov 20187 Nov 2018
Conference number: 2
http://www.peac-conf.org/
http://www.peac-conf.org/Home/Default

Conference

Conference2nd IEEE International Power Electronics and Application Conference and Exposition
Number2
LocationCrowne Plaza Shenzhen Longgang City Centre
CountryChina
CityShenzhen
Period04/11/201807/11/2018
OtherTopic Chair of IEEE PEAC 2018
Internet address

Keywords

  • Boost-flyback converter
  • ZVS turn-on
  • High gain converter
  • High frequency converter
  • Wide output range

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