SOFT MAGNETIC CORES HAVING EXCELLENT DC BIASED CHARACTERISTICS IN HIGH CURRENT AND CORE LOSS CHARACTERISTICS, AND MANUFACTURING METHODS THEREOF

摘要

The present invention relates to a soft magnetic core with excellent characteristics of a high current DC bias and excellent characteristics of a core loss and to a manufacturing method thereof. The soft magnetic core is manufactured by: sorting nanocrystalline alloy powder obtained by pulverizing an amorphous ribbon manufactured by a rapid solidification process (RSP); and then mixing the nanocrystalline alloy powder having a particle size distribution of 75~100μm: 10~85wt%, 50~75μm: 10~70wt%, and 5~50μm: 5~20wt%. Thereby the soft magnetic core provided by the present invention uses nanocrystalline alloy powder having excellent characteristics of a DC bias in a high current and excellent characteristics of a core loss.