NDLI: Effect of capacitance on eddy-current loss in multi-layer magnetic films for MHz magnetic components

Content Provider	IEEE Xplore Digital Library
Author	Di Yao Sullivan, C.R.
Copyright Year	2009
Description	Author affiliation: Thayer School of Engineering at Dartmouth, 8000 Cummings Hall, Hanover, NH 03755, USA (Di Yao; Sullivan, C.R.)
Abstract	High-frequency magnetic component designs using multilayer thin films require accurate estimation of eddy-current loss, because at high frequency, eddy-current loss can be much worse than would be predicted without considering displacement current in the dielectric layers of the thin films. A closed-form expression for predicting the loss is introduced and shown to be more accurate over a wider range of parameters compared to previous work. The consistency of the model with experimental measurements is checked. A power performance factor for high-frequency power magnetics is introduced, and the loss model is used to choose optimal film thicknesses for operation at different frequencies.
Starting Page	1025
Ending Page	1031
File Size	397089
Page Count	7
File Format	PDF
ISBN	9781424428939
DOI	10.1109/ECCE.2009.5316255
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic multilayers Multilayer Closed-form solution Frequency estimation Co-Zr-O Magnetic losses Displacement current Thin film Magnetic films Dielectric losses Dielectric thin films Dielectric measurements Capacitance Magnetic core Performance loss High frequency Performance factor
Content Type	Text
Resource Type	Article

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