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Design of Wideband Facility Power-line EMI filter  

Chung, Se-Kyo (경상대 제어계측공학과)
Lim, Jeong-Gyu (경상대 제어계측공학과)
Kim, Mu-Hyun (경상대 제어계측공학과)
Kang, Byoung-Kuk (경상대 제어계측공학과)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.14, no.6, 2009 , pp. 440-448 More about this Journal
Abstract
Facility power-line electromagnetic interference (EMI) filters are used to provide radio frequency(RF) isolation between dedicated power distribution services and noise sensitive local power distribution systems. This type of EMI filters generally needs a high current capacity and, in some special applications, a high insertion loss of a minimum 100dB from 14kHz through 10GHz per MIL-STD 220 is required. This paper deals with an analysis and design of a wideband facility power-line EMI filter with the above requirements. The characteristics of the inductor and capacitor at high frequencies are investigated. The characteristics and design method of the facility EMI filter with a high order LC network are also presented. The prototype filter is finally implemented and its performance is verified from the experimental results.
Keywords
Power-line EMI filter; Facility filter; LC network; Wideband;
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  • Reference
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