Feasibility study of adding a common-mode choke in PLC modem for EMI suppression

Feasibility study of adding a common-mode choke in PLC modem for EMI suppression

The feasibility of adding a common-mode (CM) choke in the analog front end (AFE) circuit of a power line communication (PLC) modem to reduce theCMnoise coupling onto the powe...

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Bibliographic Details
Main Authors:	Kamarul, A., See, Kye Yak, So, Ping Lam
Other Authors:	School of Electrical and Electronic Engineering
Format:	Article
Language:	English
Published:	2010
Subjects:	DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits
Online Access:	https://hdl.handle.net/10356/91927 http://hdl.handle.net/10220/6326
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Institution:	Nanyang Technological University
Language:	English

Description
Summary:	The feasibility of adding a common-mode (CM) choke in the analog front end (AFE) circuit of a power line communication (PLC) modem to reduce theCMnoise coupling onto the power line is investigated. Based on a two-current-probe measurement approach, theCMand the differential-mode (DM) equivalent electrical models of a PLC modem are first developed. Both the CM and the DM attenuations due to the addition of a CM choke when the PLC modem is connected onto the power line network are then determined. Besides the CM noise attenuation, the impact of the CM choke on the PLC signal, which isDMin nature, is also studied.