DocumentCode
1198905
Title
Copper losses of flyback transformer: search for analytical expressions
Author
Larouci, C. ; Keradec, J.-P. ; Ferrieux, J.P. ; Gerbaud, L. ; Roudet, J.
Author_Institution
Lab. d´´Electrotechnique de Grenoble, CNRS, Grenoble, France
Volume
39
Issue
3
fYear
2003
fDate
5/1/2003 12:00:00 AM
Firstpage
1745
Lastpage
1748
Abstract
Because analytical expressions are required to run optimization software, this subject is very topical. This work uses equivalent permeability to homogenize the winding structure and approximations for the window field. A progressive approach leads to the needed expressions for a transformer built around a gapped ferrite core. At every step, analytical expressions are compared to Flux3D simulation.
Keywords
finite element analysis; magnetic permeability; transformer cores; transformer windings; Cu; Flux3D simulation; copper loss; equivalent permeability; finite element method; flyback transformer; gapped ferrite core; optimization software; winding structure; window field; Copper; Flyback transformers; Frequency; Magnetic cores; Magnetic fields; Magnetic materials; Magnetic moments; Permeability; Skin; Wire;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.2003.810411
Filename
1198571
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