Optimizing capacitor placement in EMI-filter using back annotation of 3D field coupling parameters in circuit models

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    10 Citations (Scopus)


    To reduce common mode(CM) and differential mode(DM) interference, a DM/CM integrated filter is often required to reduce the level of interference. This paper will show coupling from a Common Mode Choke(CMC) into Cx capacitors can decrease the DM-filtering performance significantly at high frequencies. By retrieving equivalent circuit parameters from a 3D EM field simulation of the components, and include these parameters in the circuit simulator, an optimal capacitor orientation is determined. The optimized placement results in a 15 dB improvement between 5MHz and 200 MHz.
    Original languageUndefined
    Title of host publicationProceedings of the 2016 International Symposium on Electromagnetic Compatibility (EMCEurope2016)
    Place of PublicationUSA
    PublisherIEEE Electromagnetic Compatibility Society
    Number of pages5
    ISBN (Print)978-1-5090-1416-3
    Publication statusPublished - 8 Sep 2016
    EventEMC Europe 2016: International Symposium on Electromagnetic Compatibility - Wroclaw, Poland, Wroclaw, Poland
    Duration: 5 Sep 20169 Sep 2016

    Publication series

    PublisherIEEE Electromagnetic Compatibility Society
    ISSN (Print)2325-0364


    ConferenceEMC Europe 2016
    Other5-9 Sept 2016


    • EWI-27286
    • IR-102023
    • METIS-319455

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