DC power supply design for broadband PLC modem with low common-mode EMI coupling

被引：0

作者：

Wang, Lin Biao ^{[1
]}

See, Kye Yak ^{[1
]}

So, Ping Lam ^{[1
]}

Pang, Teng Seng ^{[1
]}

Oswal, Manish ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore, Singapore

来源：

2007 INTERNATIONAL SYMPOSIUM ON INTEGRATED CIRCUITS, VOLS 1 AND 2 | 2007年

关键词：

D O I：

10.1109/ISICIR.2007.4441886

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A power line communications (PLC) test bed is designed to understand the mechanism of common-mode (CM) coupling from the PLC modem circuitry to the power lines. It is found that the step-down power transformer that provides the DC power supply to the modem circuitry causes significant CM current on the power lines. By removing the power transformer and powering the modem circuitry with an isolated DC source, we have demonstrated that the CM current on the power lines could be reduced by as much as 15 dB.

引用

页码：414 / 417

页数：4

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