Title :
Analytical modelling of winding capacitances and dielectric losses for planar transformers
Author :
Ackermann, Bernd ; Lewalter, Astrid ; Waffenschmidt, Eberhard
Author_Institution :
Philips Res. Lab., Aachen, Germany
Abstract :
Efficient and sufficiently accurate analytical models are valuable tools for the design of planar magnetic components. This paper describes a new analytical model of winding capacitances and dielectric losses for planar transformers. It is compared qualitatively with a more simple model valid for wire wound components and validated against measured capacitances of some prototypes. The new model can be used to optimize the design of planar magnetic components. Optimizing the thickness of the insulation layers between the copper layers of a planar winding is shown as an example.
Keywords :
dielectric losses; optimisation; transformer insulation; transformer windings; analytical modelling; dielectric losses; insulation layers; planar magnetic components; planar transformers; winding capacitances; Analytical models; Capacitance measurement; Design optimization; Dielectric losses; Dielectric measurements; Magnetic analysis; Prototypes; Transformers; Wire; Wounds;
Conference_Titel :
Computers in Power Electronics, 2004. Proceedings. 2004 IEEE Workshop on
Print_ISBN :
0-7803-8502-0
DOI :
10.1109/CIPE.2004.1428111
