HIGH-FREQUENCY REACTOR, DUST CORE THEREFOR AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a dust core for a high-frequency reactor having excellent frequency characteristics for improving the efficiency of a power supply circuit and high permeability at rated current, and to provide the high-frequency reactor.;SOLUTION: In the dust core constituted in combination of a plurality of sets of core members obtained by pressure molding a mixture of an alloy powder of a composition having a particle size of 150 μm or less, and containing Si of 3.0-6.0 wt%, O (oxygen) of 0.1-1.0 wt% and Fe of the residue and binder, a part or an entirety of the core members are obtained by pressure molding the dust core from a direction perpendicular to a magnetic path direction of the dust core.;COPYRIGHT: (C)2004,JPO