Design of a flyback transformer using a stress-annealed iron-based nanocrystalline alloy

F. Costa, F. Alves, A. Benchabi, F. Simon, S. Lefèbvre

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This paper presents some results from experiments carried out on a flyback converter whose transformer has been built with a new stress-annealed nanocrystalline (iron-based) material developed by our laboratory team. This original process has provided a low value of relative permeability (around 200) at a high induction level, thereby making it possible to store large amounts of energy. A flyback transformer without air-gap was thus tested in order to evaluate the performance of this material, with highly satisfactory results being obtained. Because of the material's low magnetic losses at a high induction level (up to 1 T) and high-frequency switching (up to 25 kHz), low transformer losses along with a low temperature rise were observed. A figure of merit is proposed in order to situate our material performances among others.

Original languageEnglish
Pages (from-to)173-180
Number of pages8
JournalEPJ Applied Physics
Volume18
Issue number3
DOIs
Publication statusPublished - 1 Jan 2002
Externally publishedYes

Fingerprint

Nanocrystalline alloys
transformers
Iron
iron
induction
Magnetic leakage
figure of merit
converters
permeability
Switching frequency
air
Air
energy
Experiments
Temperature

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics

Cite this

Design of a flyback transformer using a stress-annealed iron-based nanocrystalline alloy. / Costa, F.; Alves, F.; Benchabi, A.; Simon, F.; Lefèbvre, S.

In: EPJ Applied Physics, Vol. 18, No. 3, 01.01.2002, p. 173-180.

Research output: Contribution to journalArticle

Costa, F. ; Alves, F. ; Benchabi, A. ; Simon, F. ; Lefèbvre, S. / Design of a flyback transformer using a stress-annealed iron-based nanocrystalline alloy. In: EPJ Applied Physics. 2002 ; Vol. 18, No. 3. pp. 173-180.
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