发明授权
US06603382B1 Inductive element having improved superposed DC current characteristic 失效
具有改善的叠加直流电流特性的感应元件

  • 专利标题: Inductive element having improved superposed DC current characteristic
  • 专利标题(中): 具有改善的叠加直流电流特性的感应元件
  • 申请号: US09547639
    申请日: 2000-04-12
  • 公开(公告)号: US06603382B1
    公开(公告)日: 2003-08-05
  • 发明人: Eiichi KomaiYoshito SasakiKazushi Ogawa
  • 申请人: Eiichi KomaiYoshito SasakiKazushi Ogawa
  • 优先权: JP11-104842 19990413; JP2000-061778 20000307
  • 主分类号: H01F500
  • IPC分类号: H01F500
Inductive element having improved superposed DC current characteristic
摘要:
A coil layer, and a magnetic layer covering the coil layer via an insulating layer are provided. The magnetic layer comprises at least two magnetic films in lamination. There is adopted an inductive element including a combination of magnetic films in which, for any two magnetic films forming the magnetic layer, the value of product of multiplication of magnetic permeability and thickness of a magnetic film close to the coil layer is smaller than the value of product of multiplication of magnetic permeability and thickness of a magnetic film distant from the coil layer. This inductive element permits improvement of the superposed DC current characteristic and prevention of a decrease in inductance because magnetic fluxes generated from the coil layer are induced to a magnetic film distant from the coil layer.
信息查询
0/0