2-D analytical winding losses model of micro-inductor

Yangkun Li, Xingkui Mao, Jungao Zhu, Jiqing Dong, Zhe Zhang

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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    Abstract

    Since the magnetic field distribution in winding window of thin film micro-inductor with closed magnetic core has obvious 2-D characteristics, the accuracy of 1-D analytical model for its winding AC losses is poor. The magnetic field of the micro-inductor is analyzed deeply to show that its distribution along the winding edge does not change with frequency. According to the analysis result, the magnetic field strength around the winding edge is calculated with the Ampere’s law. And the 2-D magnetic field is decomposed into an x component and y component in rectangular coordinates. Then based on the superposition and uniqueness law of magnetic field, a 2-D analytical winding losses model of thin film micro-inductor is proposed. Finally, the finite element analysis (FEA) simulation verified the loss model to have high accuracy under wide exciting current frequency and the loss model can be used easily.
    Original languageEnglish
    Title of host publicationProceedings of 45th Annual Conference of the IEEE Industrial Electronics Society
    Number of pages6
    PublisherIEEE
    Publication date2020
    ISBN (Electronic)978-1-7281-4878-6
    DOIs
    Publication statusPublished - 2020
    Event45th Annual Conference of the IEEE Industrial Electronics Society - Lisbon Congress Center, Lisbon, Portugal
    Duration: 14 Oct 201917 Oct 2019
    Conference number: 45
    https://ieeexplore.ieee.org/xpl/conhome/8897531/proceeding
    https://iecon2019.org/

    Conference

    Conference45th Annual Conference of the IEEE Industrial Electronics Society
    Number45
    LocationLisbon Congress Center
    Country/TerritoryPortugal
    CityLisbon
    Period14/10/201917/10/2019
    Internet address

    Keywords

    • Micro-inductor
    • Thin film
    • Winding losses
    • Magnetic field
    • 2-D analytical winding losses model

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