Overview of Planar Magnetic Technology — Fundamental Properties

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    The momentum towards high efficiency, high frequency, and high power density in power supplies limits wide use of conventional wire-wound magnetic components. This article gives an overview of planar magnetic technologies with respect to the development of modern power electronics. The major advantages and disadvantages in the use of planar magnetics for high frequency power converters are covered, and publications on planar magnetics are reviewed. A detailed
    survey of winding conduction loss, leakage inductance and winding capacitance for planar magnetics is presented so power electronics engineers and researchers can have a clear understanding of the intrinsic properties of planar magnetics.
    Original languageEnglish
    JournalIEEE Transactions on Power Electronics
    Issue number9
    Pages (from-to)4888-4900
    Publication statusPublished - 2014


    • Planar magnetics
    • Transformer
    • Inductor winding loss
    • Fringing effect
    • Planar sandwiched magnetics
    • Parallel winding
    • Leakage inductance and winding capacitance


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