A half-turn winding for compact, high-current, high-turns-ratio, low-leakage-inductance transformer

K. V. Iyer, M. Cai, D. Murthy-Bellur, B. Palmer, N. Mohan

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

4 Scopus citations

Abstract

Power transformers are an integral part of an isolated DC-DC converter with a high voltage ratio. An essential requirement of such a transformer design is to achieve a low leakage inductance for power transfer. This paper proposes a transformer design using foil conductors with a half-turn high-current (HC) winding which has the following benefits: 1) less number of turns in both of the HC and low-current (LC) windings in comparison to a conventional design; 2) easy termination of the LC winding; 3) low leakage inductance by virtue of less number of turns and ease of interleaving of the LC and HC windings. The incorporation of half-turn HC windings provides openings through which the LC winding turns can pass. This allows the LC winding turns to be wrapped continuously, resulting in easy interleaving and termination. Analytical design followed by 3-D FEA results and bench top measurements on a hardware prototype are provided for a half-turn-winding transformer designed for a 12-288V, 3kW, 50kHz DC-DC converter.

Original languageEnglish (US)
Title of host publication2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3222-3227
Number of pages6
ISBN (Electronic)9781509029983
DOIs
StatePublished - Nov 3 2017
Externally publishedYes
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

  • Compact design
  • DC-DC converter
  • Foil winding
  • Half-turn winding
  • Interleaving
  • Low leakage inductance
  • Transformer

Fingerprint

Dive into the research topics of 'A half-turn winding for compact, high-current, high-turns-ratio, low-leakage-inductance transformer'. Together they form a unique fingerprint.

Cite this