Formula for dynamic power loss in ferrite cores taking into account displacement current

Abstract

A formula for dynamic power loss taking into account the displacement current effect is introduced. The calculations based on the formula and the variation of core parameters, i.e., frequency dependence of resistivity, permeability, and permittivity, are compared values measured from 10 kHz to 10 MHz. In this frequency range the resistivity has a more dominant influence on the power loss than the other parameters.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>