Title :
Modeling Litz wire windings
Author :
Schutz, J. ; Roudet, J. ; Schellmanns, A.
Author_Institution :
Lab. d´´Electrotech. de Grenoble, CNRS, St. Martin d´´Heres, France
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;
Conference_Titel :
Industry Applications Conference, 1997. Thirty-Second IAS Annual Meeting, IAS '97., Conference Record of the 1997 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-4067-1
DOI :
10.1109/IAS.1997.629011
