NDLI: Impedance analysis of EMI filter circuitry used for estimation of the spurious components and boundings

Content Provider	IEEE Xplore Digital Library
Author	Drinovsky, J. Zachar, J. Kejik, Z. Ruzek, V.
Copyright Year	2011
Description	Author affiliation: Department of Radio Electronics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Purkynova 118, 612 00, Czech Republic (Drinovsky, J.; Zachar, J.; Kejik, Z.; Ruzek, V.)
Abstract	One of the problems in the design of powerline EMI filters is the uncertainty and ambiguity of their source/load impedances which results in breach of expected filter parameters in a real installation. To cover the uncertainty of these terminating impedances, the producers of the filters usually give for their EMI filters the measured insertion loss in several different impedance conditions. This measurements are usually done in harmony with the international standard CISPR 17. These measurements cover frequency range up to 30 MHz and they are also time consuming. In past the author provide several approaches to come up with the method for creation the EMI filter model directly from measured data in the 50 Ω/50 Ω. This approach is complicated by the ignorance of the real spurious components of the EMI filter. So for this reason, this article is focused on the identification of this spurious components of the EMI filters. Each branch of the filter is measured separately by the VNA and after that the performance is compared with the data taken from the simulations. The resonance frequencies are nicely significant in measured data and in calculated as well.
Starting Page	533
Ending Page	536
File Size	134238
Page Count	4
File Format	PDF
ISBN	9781457703041
e-ISBN	9788393207527
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-16
Publisher Place	Poland
Access Restriction	Subscribed
Rights Holder	Tech Univ of Lodz
Subject Keyword	RFI filters EMI main filter admittance parameters VNA insertion loss Loss measurement Frequency measurement impedance termination PSO spurious components bounding unmatched impedance system Electromagnetic interference Insertion loss VEE pivot condensation Impedance Mathematical model Admittance MNVM
Content Type	Text
Resource Type	Article

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Modification of approximate worst-case measurement system for EMI filters

Insertion Loss Estimation of EMI Filters in Unmatched Input/Output Impedance System

Operation Amplifiers in EMI Filter Insertion Loss Measurement Setup

Determination of the insertion loss of EMI filters using a black-box model

Estimation of the EMI Filter Circuitry from the Insertion Loss Characteristics

Variable Impedance in Measuring EMI Filter’s Insertion Loss

Design of active EMI filter based on virtual impedance transform method

Application optimization to search values of spurious elements of EMI filters

EMI filter design methodology taking into account the static converter impedance

Impedance analysis of EMI filter circuitry used for estimation of the spurious components and boundings

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