| 摘要 |
PURPOSE:To obtain the title noise absorber which can suppress a recovery electric current with good efficiency and whose performance is high by a method wherein an Fe-based amorphous magnetic material whose composition is expressed as Fe86-xSi6B10Nbx and in which the value of (x) is within a specific range is used for a magnetic core. CONSTITUTION:An Fe-based amorphous material whose composition is expressed as Fe86-xSi6B10Nbx and in which 0.5 atomic %<=x<=6 atomic % is used for a magnetic core 12. For example, a noise absorber 10 is constituted as follows: an insulator 14 is formed around a ring-shaped magnetic core 12, and a toroidal winding is executed to the magnetic core 12. An Fe-based amorphous alloy of said composition is used for the material for the magnetic core 12. Thereby, since said amorphous alloy is a magnetic material whose magnetic core loss is low, whose saturation flux density is high and whose squareness ratio is high, it is possible to obtain the noise absorber which can suppress a recovery electric current with good efficiency and whose performance is high. |
