Feasibility Study of Adding a Common-Mode Choke in PLC Modem for EMI Suppression

Author

See, K.Y. ; So, P.L. ; Kamarul, A.

Author_Institution

Nanyang Technol. Univ., Nanyang

Volume

22

Issue

4

fYear

2007

Firstpage

2136

Lastpage

2141

Abstract

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 the CM noise coupling onto the power line is investigated. Based on a two-current-probe measurement approach, the CM and 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 is DM in nature, is also studied.

Keywords

carrier transmission on power lines; electromagnetic interference; interference suppression; EMI suppression; PLC modem; analog front end circuit; common-mode choke; common-mode noise coupling; power line communication modem; power line network; two-current-probe measurement; Attenuation; Circuit noise; Coupling circuits; Delta modulation; Electromagnetic interference; Inductors; Modems; Noise reduction; Power line communications; Programmable control; Common-mode choke; electromagnetic analysis; electromagnetic interference; power system communication;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2007.905274

Filename

4302556