Noise diagnosis techniques in conducted electromagnetic interference (EMI) measurement: methods analysis and design

Author

Zhao, Yang ; See, Kye Yak ; Li, Shi-Jin

Author_Institution

Sch. of Electr. & Electron. Eng., Nanjing Normal Univ., China

Volume

1

fYear

2004

fDate

20-25 June 2004

Firstpage

495

Abstract

Electromagnetic interference (EMI) emission is an important matter for electrical and electronic equipment. Currently, conducted EMI emissions are measured by using a line impedance stabilization network (LISN) and the results are a mixture of common mode (CM) and differential mode (DM) noise. Several noise diagnosis networks for CM/DM signal separation are analyzed and some experimental results on performance are given for comparison. The advantages and disadvantages of these networks are also analyzed briefly. Additionally, a computer-aided CM and DM filter design is introduced on the basis of mode separation information, and, therefore, automatic conducted EMI emission diagnosis is realizable.

Keywords

circuit CAD; electric noise measurement; electromagnetic interference; power filters; random noise; source separation; LISN; common mode noise; computer-aided filter design; conducted EMI measurement; conducted electromagnetic interference measurement; differential mode noise; electrical equipment; electronic equipment; line impedance stabilization network; mode separation information; noise diagnosis networks; noise diagnosis techniques; power line filters; Current measurement; Delta modulation; Design methodology; Electromagnetic analysis; Electromagnetic interference; Electromagnetic measurements; Electronic equipment; Impedance measurement; Noise measurement; Source separation;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2004. IEEE

Print_ISBN

0-7803-8302-8

Type

conf

DOI

10.1109/APS.2004.1329692

Filename

1329692