DocumentCode
2610215
Title
A closed-form formula for 2D ohmic losses calculation in SMPS transformer foils
Author
Robert, Frédéric ; Mathys, Pierre ; Schauwers, Jean-Pierre
Author_Institution
Univ. Libre de Bruxelles, Belgium
Volume
1
fYear
1999
fDate
14-18 Mar 1999
Firstpage
199
Abstract
A new closed-form formula aimed at calculating ohmic losses in switch-mode power supply transformers is presented. It is based on intensive 2D finite element method simulation. Only valid for one-layer-foil windings at the moment, it accurately covers cases where the classical Dowell´s formula significantly underestimated the losses
Keywords
finite element analysis; foils; losses; power transformers; switched mode power supplies; transformer windings; 2D finite element method simulation; 2D ohmic losses calculation; SMPS transformer foils; closed-form formula; one-layer-foil windings; switch-mode power supply; Analytical models; Conductors; Current density; Finite element methods; Frequency; Numerical simulation; Power system simulation; Proximity effect; Skin; Switched-mode power supply;
fLanguage
English
Publisher
ieee
Conference_Titel
Applied Power Electronics Conference and Exposition, 1999. APEC '99. Fourteenth Annual
Conference_Location
Dallas, TX
Print_ISBN
0-7803-5160-6
Type
conf
DOI
10.1109/APEC.1999.749510
Filename
749510
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