| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reactor which uses a dust core and in which improvement of equipment efficiency and superposition property is realized. <P>SOLUTION: The reactor has a corner like a ring and uses the dust core 1. In the dust core, a material of an interior portion 10 has a high saturation magnetic flux density, and material of an exterior portion 20 has a low saturation magnetic flux density and a low loss. For example, a Fe-Si based alloy, Fe-Co based alloy or Fe-Ni based alloy is used as a material of soft magnetic powder of the interior portion 10, and a Fe-Si-Al based alloy or Fe-Ni based alloy is used as a material of soft magnetic powder of the exterior portion 20. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
