Modeling Litz wire windings

Author

Schutz, J. ; Roudet, J. ; Schellmanns, A.

Author_Institution

Lab. d´´Electrotech. de Grenoble, CNRS, St. Martin d´´Heres, France

Volume

2

fYear

1997

fDate

5-9 Oct 1997

Firstpage

1190

Abstract

In most modern power electronic devices, transformers are used to transfer energy and appear as the key point of switching power supplies. In order to achieve a better design and a global optimization of the converter the knowledge of an equivalent transformer circuit is very useful. Due to the rising switching frequencies, Litz wire is necessary in transformer design. Despite this, accounting for leakages and losses, when windings are made up of Litz wire is not clear yet. The aim of this paper is to compare several approaches of this point with experimental data

Keywords

equivalent circuits; losses; power convertors; switched mode power supplies; transformer windings; wires (electric); Litz wire windings modeling; energy transfer; equivalent transformer circuit; global optimization; leakages; losses; rising switching frequencies; switching power supplies; transformers; Copper; Equivalent circuits; Frequency; Impedance; Inductance; Inductors; Magnetic circuits; Magnetic cores; Proximity effect; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1997. Thirty-Second IAS Annual Meeting, IAS '97., Conference Record of the 1997 IEEE

Conference_Location

New Orleans, LA

ISSN

0197-2618

Print_ISBN

0-7803-4067-1

Type

conf

DOI

10.1109/IAS.1997.629011

Filename

629011