Analysis of Insertion Loss and Impedance Compatibility of Hybrid EMI Filter Based on Equivalent Circuit Model
Wenjie Chen
Xu Yang
Zhaoan Wang
Xi'an Jiaotong Univ., Xi'an;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Aug. 2007
Volume: 54,
Issue: 4
On page(s): 2057-2064
ISSN: 0278-0046
INSPEC Accession Number: 9608230
Digital Object Identifier: 10.1109/TIE.2007.895147
Current Version Published: 2007-07-16
Abstract
The hybrid active electromagnetic interference filter (HAEF) is considered one of the best options for improving power quality for a number of considerations. A systematic classification and identification of HAEF configurations is given, including their insertion losses, impedance compatibilities, potential applications, and comparative features. It is aimed at providing a broad perspective on the status of HAEF technology to researchers and application engineers dealing with EMI issues. The basis of discussion is an equivalent circuit model that includes all possible combinations of active and passive elements and matches these to the desirable attributes. The evaluation indicates those topologies that are known and those topologies that are relatively new.
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