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Terminal Properties of Magnetic Cores

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2 Author(s)
Chen, T.C. ; Burroughs Corp. Res. Center, Paoli, Pa. ; Papoulis, A.

The reversal of magnetization of cores with rectangular hysteresis loop is investigated. For materials whose thickness is more than one thousandth of an inch, the switching is determined from the static loop and the solution of the appropriate field problem; for thinner materials the B-H concept is not sufficient to determine the instantaneous state of magnetization and to characterize the core as a circuit element a new approach must be used. In this paper it is shown that the terminal properties of these cores can be obtained from their dynamic step response; the analysis is based on the physics of magnetization and is experimentally verified.

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Proceedings of the IRE  (Volume:46 ,  Issue: 5 )