Design and comparison of high frequency transformers using foil and round windings

Kartik V. Iyer, William P Robbins, Ned Mohan

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

12 Scopus citations

Abstract

High frequency transformers are widely used in Switched-mode power supplies and now are being proposed to be used with power electronic converters to replace line-frequency transformers. This paper presents a winding design procedure for minimizing the power losses using foils and solid round wires under sinusoidal excitation to limit the temperature rise. This paper derives the range from which the thickness of the layers can be chosen to obtain the minimum power loss. This thickness range is a function of the number of layers and does not include the 'optimum'based on the previous literature. Using this design procedure, it is shown that interleaving is not necessary in foil-wound transformers to obtain the minimum loss. A comparison of winding losses between foil windings and round conductors is also given. The analytical results are verified by designing six different winding configurations for the same specifications using 2-D Ansys Maxwell finite element design package.

Original languageEnglish (US)
Title of host publication2014 International Power Electronics Conference, IPEC-Hiroshima - ECCE Asia 2014
PublisherIEEE Computer Society
Pages3037-3043
Number of pages7
ISBN (Print)9781479927050
DOIs
StatePublished - 2014
Event7th International Power Electronics Conference, IPEC-Hiroshima - ECCE Asia 2014 - Hiroshima, Japan
Duration: May 18 2014May 21 2014

Publication series

Name2014 International Power Electronics Conference, IPEC-Hiroshima - ECCE Asia 2014

Other

Other7th International Power Electronics Conference, IPEC-Hiroshima - ECCE Asia 2014
CountryJapan
CityHiroshima
Period5/18/145/21/14

Fingerprint Dive into the research topics of 'Design and comparison of high frequency transformers using foil and round windings'. Together they form a unique fingerprint.

Cite this