Analytical calculation of the magnetic field radiated by A CM coil using conformal mapping methods

Author

Levy, Pierre-Etienne ; Costa, Francois ; Gautier, Cyrille ; Revol, Bertrand

Author_Institution

SATIE, Cachan, France

fYear

2014

fDate

1-4 Sept. 2014

Firstpage

246

Lastpage

251

Abstract

Inductive coupling in an electromagnetic interference (EMI) filter are sometimes difficult to evaluate. In this paper, a new analytical model is discussed. This model is based on conformal mapping techniques and allows the calculation of radiated magnetic fields. Thanks to the use of Fourier series, it can be applied to any current distribution around a coil with toroidal ferromagnetic core and reveals the influence of the winding configuration on leakage inductance and radiated field´s distribution.

Keywords

Fourier series; coils; conformal mapping; current distribution; electromagnetic coupling; electromagnetic interference; inductance; inductors; interference filters; magnetic cores; windings; CM coil; EMI filter; Fourier series; common-mode choke; conformal mapping technique; current distribution; electromagnetic interference filter; inductive coupling; leakage inductance; radiated magnetic field analytical calculation model; radiated magnetic field distribution; toroidal ferromagnetic core; winding; Coils; Conductors; Inductors; Magnetic cores; Magnetic domains; Magnetic separation; Windings; Electromagnetic compatibility; electromagnetic fields; electromagnetic radiative interference; inductive coupling; modeling;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility (EMC Europe), 2014 International Symposium on

Conference_Location

Gothenburg

Type

conf

DOI

10.1109/EMCEurope.2014.6930911

Filename

6930911