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Thin wire approximation for PCB modelingof the EMC of power converters

Published online by Cambridge University Press:  15 February 1999

J. Ben Hadj Slama ,
G. Rojat  and
Ph. Auriol
J. Ben Hadj Slama
Affiliation:
École Centrale de Lyon ( CEGELY CNRS 5005), 36 avenue Guy de Collongue, B.P. 163, 69131 Écully Cedex, France
G. Rojat
Affiliation:
École Centrale de Lyon ( CEGELY CNRS 5005), 36 avenue Guy de Collongue, B.P. 163, 69131 Écully Cedex, France
Ph. Auriol
Affiliation:
École Centrale de Lyon ( CEGELY CNRS 5005), 36 avenue Guy de Collongue, B.P. 163, 69131 Écully Cedex, France
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Abstract

This paper deals with the modeling of Printed Circuit Boards (PCB) for numerical resolution of a power circuits electromagnetic Compatibility (EMC). The well-adapted model for numerical resolution is the thin wire model. Thus, the PCB trace is replaced by N thin wires. Each wire radius is calculated as a function of the PCB dimensions. This model is applied to calculate the radiated electric field from a PCB circuit using the moment method which is well-suited for thin wire modeling. By observing the influence of the electromagnetic field radiated from the circuit, the number of equivalent wires required to have coherent results is established. The study of the current distribution in the wires shows that the thin wire model takes into account both the skin and the proximity effects.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 5 , Issue 2 , February 1999 , pp. 155 - 162
Copyright
© EDP Sciences, 1999

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References

J. Ben Hadj Slama, G. Rojat, Méthodes Numériques et Compatibilité Électromagnétique en Électronique de Puissance, $\rm 2^{e}$ conférence européenne sur les méthodes numériques en électromagnétisme, NUMELEC'97, mars 1997, pp. 68-69.
Ph. Petit, Ph.D. thesis, Conservatoire des Arts et Métiers, Lille, France, 1996.
R.F. Harrington, Field Computation by Moment method (Malbar, FL: Krieger 1968).
J. Ben Hadj Slama, G. Rojat, Ph. Auriol, Using the Moment method for modeling electromagnetic field radiated by static converters, 12th International Zurich Symposium & technical Exhibition on Electromagnetic Compatibility EMC'97, Zurich, Vol. 1, 1997, pp. 37-42.
J. Ben Hadj Slama, Ph.D. Thesis, École Centrale de Lyon, France, 1997.