NDLI: Investigation on the mode conversion between common-mode and differential-mode noises in EMI filters for power electronics circuits

Content Provider	IEEE Xplore Digital Library
Author	Kamikura, M. Murata, Y. Nishizawa, A.
Copyright Year	2013
Description	Author affiliation: Adv. Technol. R&D Center, Mitsubishi Electr. Corp., Amagasaki, Japan (Kamikura, M.; Murata, Y.; Nishizawa, A.)
Abstract	The noise mode conversion between common-mode and differential-mode can occur in power electronics circuits because of the unbalance in the circuits. In this study, an equivalent circuit of an electromagnetic interference (EMI) filter was built, in which the leakage of the magnet flux of the common-mode choke was taken into account. Using the equivalent circuit, the mode conversion between common-mode and differentialmode in the filter was analyzed. The mode conversion was measured using a 2-port network analyzer and a differential probe in practical filter implementation. With the measurement system, the mode conversion between common-mode and differential mode can be measured regardless of the impedance of an equipment under test. The measurement results agree with simulated results within a difference of around 3 dB. The resonant frequencies shown in the mode conversion were explained using the equivalent circuit.
Starting Page	557
Ending Page	560
File Size	197927
Page Count	4
File Format	PDF
ISBN	9781467349802
ISSN	23250364
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-02
Publisher Place	Belgium
Access Restriction	Subscribed
Rights Holder	EMC Europe Foundation
Subject Keyword	differential-mode noise Impedance measurement equivalent circuit common-mode noise Electromagnetic interference Noise Capacitors mode conversion Frequency measurement Inductors Equivalent circuits
Content Type	Text
Resource Type	Article

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