POWDER FOR DUST CORE, DUST CORE, METHOD OF MANUFACTURING THE POWDER, AND HIGH-FREQUENCY REACTOR USING THE POWDER

摘要

PROBLEM TO BE SOLVED: To provide alloy powder to be used in high-frequency reactor, which is improved in loss and frequency characteristic to improve the efficiency of a power supply circuit and moreover shows high magnetic permeability under a rated current, and to easily and inexpensively provide a reactor using this powder.;SOLUTION: A dust core for high-frequency reactor is formed by compression- molding the alloy powder containing silicon(Si) in an amount of 3.0-6.0 wt.%, oxygen(O) in an amount of 0.1-1.0 wt.%, phosphorus(P) in an amount of 0-1.0 wt.% (excluding 0 wt.%), and the balance of iron(Fe) and having substantial particle diameters of ≤150 μm and a binder by using a metal mold.;COPYRIGHT: (C)2002,JPO