Electrical circuit modeling of conductors with skin effect
- 15 July 1986
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 60 (2) , 475-481
- https://doi.org/10.1063/1.337434
Abstract
The electrical impedance of a lossy conductor is a complicated function of time (or frequency) because of the skin effect. By solving the diffusion equation for magnetic fields in conductors of several prototypical shapes, the impedance can be calculated as a function of time for a step function of current. The solution suggests an electrical circuit representation that allows calculation of time-dependent voltages and currents of arbitrary waveforms. A technique using an operational amplifier to determine the current in such a conductor by measuring some external voltage is described. Useful analytical approximations to the results are derived.This publication has 5 references indexed in Scilit:
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- New finite element techniques for skin effect problemsIEEE Transactions on Magnetics, 1982
- Methods for eddy current computation in three dimensionsIEEE Transactions on Magnetics, 1982
- Finite element calculation of eddy currents and skin effectsIEEE Transactions on Magnetics, 1982
- Skin Effect in Tubular and Flat ConductorsTransactions of the American Institute of Electrical Engineers, 1918