Common-mode and differential-mode analysis of common-mode chokes

Author

Li, Zhe ; Pommerenke, David ; Shimoshio, Y.

Author_Institution

Missouri Univ., Rolla, MO, USA

Volume

1

fYear

2003

fDate

18-22 Aug. 2003

Firstpage

384

Abstract

In this paper, three methods for the measuring common-mode and differential-mode S-parameters of common mode chokes are presented. The three methods involved: (1) ABCD chain matrix; (2) using hybrid couplers; and (3) modal decomposition. Each measurement method provides a specific level of accuracy. The modal decomposition method can work up to 10 GHz. Given a full characterization of a common mode choke, a passive equivalent circuit model can be synthesized that provides a fundamental understanding of the physical performance. SPICE equivalent circuit model of common mode chokes and the extraction of model parameters are provided.

Keywords

S-parameters; electromagnetic compatibility; electromagnetic interference; inductors; matrix algebra; transmission line theory; ABCD chain matrix; common-mode analysis; common-mode chokes; common-mode insertion loss; differential-mode analysis; differential-mode insertion loss; equivalent circuit model; hybrid couplers; mixed mode S-parameters; modal decomposition; scattering parameters; suppression filters; Couplers; Educational institutions; Equivalent circuits; Impedance; Inductors; Insertion loss; Loss measurement; Radio frequency; SPICE; Scattering parameters;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2003 IEEE International Symposium on

Print_ISBN

0-7803-7835-0

Type

conf

DOI

10.1109/ISEMC.2003.1236626

Filename

1236626