NDLI: Optimal air gap design in high frequency foil windings

Content Provider	IEEE Xplore Digital Library
Author	Kutkut, N.H. Divan, D.M.
Copyright Year	1997
Description	Author affiliation: Soft Switching Technol. Corp., Middleton, WI, USA (Kutkut, N.H.)
Abstract	High frequency AC losses are normally induced in transformer and inductor windings due to skin, proximity, fringing and other AC effects. In addition, the winding structure greatly affects the distribution of losses within the windings. Air gaps are usually placed in the core of magnetic devices to support the high magneto motive force. Fringing fields can cause additional AC winding losses and care must be taken to minimize the additional losses. In this paper, the effect of air gap design on the induced losses is investigated. In particular, three air gap designs: the lumped, the discretely distributed, and the uniformly distributed air gap designs are investigated and evaluated. Both one-dimensional and finite element analyses are used to investigate the different design structures.
Starting Page	381
Ending Page	387
File Size	720990
Page Count	7
File Format	PDF
ISBN	0780337042
DOI	10.1109/APEC.1997.581479
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-02-27
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Frequency Magnetic cores Magnetic analysis Strips Inductors Air gaps Skin Permeability Magnetic devices Finite element methods
Content Type	Text
Resource Type	Article

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