Analogue treatment of eddy currents and magnetic flux penetration in saturated iron

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Abstract
The paper shows the use of simple bridge-rectifier circuits to extend the RC-analogue representation of electromagnetic fields within conductors to the case in which the conductor may undergo magnetic saturation. The technique is illustrated by solving the circuit problem corresponding to an idealized B/H curve, and obtaining agreement with the known field solution for this case. It is then shown how any practical B/H curve may be closely approximated to allow results to be obtained in cases where analysis is no longer easy.

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