Abstract
DC biased permeability (μAC) of the powder composite cores was examined for several soft magnetic materials with the viewpoint of partial DC permeability (μΔ) and coercivity (Hc). The materials with low coercivity had μAC in proportion to μΔ while the materials with higher He shows no relation between μAC and μΔ. It was confirmed that the low and constant He and high μΔ in the BH curves were necessary to improve DC biased permeability.
