Modeling skin effect in Spice

摘要

Skin effect involves the interplay between flux linkages and currents in and on conductors. At dc and low frequencies, current density is essentially uniform throughout the cross section of a conductor. The fact that current flows on the interior of the conductor implies that a magnetic flux also exists within the conductor. Thus, at low frequencies, the inductance of a conductor is higher because magnetic flux is both inside and outside the conductor.