Influence of Insulating Compounds Addition on Magnetic Properties of FeSi Cores

Abstract

The process of preparation of Fe-Si cores is studied, and the influence of different amounts of insulating compounds addition on magnetic properties of the cores is discussed. The results show that the effective permeability is 71.4 when the amount of insulation is 0.5 wt%. When the content is increased to 2.5 wt%, the DC Bias characteristic becomes the best. When the insulating compounds addition is 2.5 wt%, the sample has the lowest power loss, which is 308.4 mW/cm3 at f=50 kHz and B=50 mT.