Field-cannon-technique to Reduce AC Resistance of Foil Windings in High Frequency Transformers

Yudi Xiao, Martijn Sebastiaan Duraij, Zhe Zhang, Tiberiu Gabriel Zsurzsan, Mads Hansen, Brian Thomsen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Minimizing transformer winding loss is a prominent factor to increase efficiency of power electronics converters. This is especially valid for modern switched-mode power supplies, where eddy current effects on windings become dominant due to continuously elevated switching frequency. In this paper, a field shaping technique, dubbed the field-cannon-technique, is proposed to mitigate eddy current effects in high frequency transformers’ foil windings. The basic principle and the implementation of the proposed technique is introduced. A model is derived using finite difference method, in order to calculate the distribution of the magnetic field within the transformers implemented with the field-cannon-technique. Finally, the technique is verified by experiments, where the winding resistance of the transformer is reduced by a factor of three.
Original languageEnglish
Title of host publicationProceedings of IEEE 9th International Power Electronics and Motion Control Conference
PublisherIEEE
Publication date2021
Pages1063-1068
ISBN (Print)978-1-7281-5302-5
DOIs
Publication statusPublished - 2021
Event2020 IEEE 9th International Power Electronics and Motion Control Conference - International Youth Cultural Centre, Nanjing, China
Duration: 29 Nov 20202 Dec 2020
https://epe-ecce-conferences.com/epe2020/ipemc-2020-ecce-asia/

Conference

Conference2020 IEEE 9th International Power Electronics and Motion Control Conference
LocationInternational Youth Cultural Centre
Country/TerritoryChina
CityNanjing
Period29/11/202002/12/2020
Internet address

Keywords

  • Eddy current
  • High frequency
  • Transformers
  • Magnetic field shaping

Fingerprint

Dive into the research topics of 'Field-cannon-technique to Reduce AC Resistance of Foil Windings in High Frequency Transformers'. Together they form a unique fingerprint.

Cite this