Magnetic core and method of manufacturing the same
First Claim
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1. A magnetic core comprising a mixture of magnetic powder and a spacing material, wherein the distance between adjacent particles of said magnetic powder is controlled by said spacing material and wherein the distance between adjacent magnetic particles is represented by δ
- and the mean particle size of magnetic powder is represented by d, and the relationship of 10−
3≦
δ
/d≦
10−
1 is satisfied in 70% or more of the magnetic powder, said magnetic powder comprising a soft magnetic material.
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Abstract
A magnetic core of a compressed compact comprises a mixture of magnetic powder and a spacing material, wherein the distance between adjacent magnetic powder particles is controlled by the spacing material. In this constitution, a magnetic core low in core loss, high in magnetic permeability, and excellent in direct-current superposing characteristic is realized.
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6 Claims
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1. A magnetic core comprising a mixture of magnetic powder and a spacing material, wherein the distance between adjacent particles of said magnetic powder is controlled by said spacing material and wherein the distance between adjacent magnetic particles is represented by δ
- and the mean particle size of magnetic powder is represented by d, and the relationship of 10−
3≦
δ
/d≦
10−
1 is satisfied in 70% or more of the magnetic powder, said magnetic powder comprising a soft magnetic material. - View Dependent Claims (2, 3, 4, 5, 6)
- and the mean particle size of magnetic powder is represented by d, and the relationship of 10−
Specification