POWDER MAGNETIC CORE AND ITS MANUFACTURING METHOD

摘要

<P>PROBLEM TO BE SOLVED: To provide a powder magnetic core capable of reducing more sound noise than before and having a good direct current superposition characteristic. Ž<P>SOLUTION: The powder magnetic core 10 has no gap. The powder magnetic core 10 has a core body part 12 for mainly composing a magnetic path, and at least not less than one low magnetic part 14 or nonmagnetic part 14 arranged on the magnetic path and having initial permearbility lower than that of the core body part 12. The core body part 12 is integrally molded with the low magnetic part 14 or the nonmagnetic part 14. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž