Title:
制御可能誘導装置
Document Type and Number:
Japanese Patent JP4630873
Kind Code:
B2
Abstract:
A variable inductor device comprises a magnetic core with first and second coaxial and concentric cylindrical members 101, 102 formed from magnetic material which are arranged with a high permeability direction and a lower permeability direction. The ends of the cylindrical members 101,102 are magnetically interconnected by end coupling members 105, 106. A first winding 103 is wound around both of the magnetic cylinders with an axis perpendicular to that of the cylinders. A second winding 104 is wound around at least one of the cylindrical members and has an axis that coincides with that of the cylinders. The first winding 103 may provide a magnetic field which is aligned with the high permeability direction of the magnetic core and the second winding 104 may be orthogonal to the first winding and provide a magnetic field which is aligned with a lower permeability direction, or vise versa. A magnetic coupler device 105, 106 and a magnetic structure are also claimed. The magnetic coupler 105, 106 may be formed from anisotropic magnetic sheet or wire material and arranged to form a toroidal member for magnetically coupling two coaxial and concentric cylindrical magnetic core members. A non-magnetic spacer material may be used between the cylinders and the end couplers. The magnetic structure has two windings which are orthogonal to one another and act on a closed magnetic core formed from anisotropic material. The variable inductor device provides a low loss variable inductor for high power applications.
Inventors:
Haugs, Espen
Strand, Frank
Strand, Frank
Application Number:
JP2006535293A
Publication Date:
February 09, 2011
Filing Date:
October 13, 2004
Export Citation:
Assignee:
Magtec AS
International Classes:
H01F29/00; H01F21/08; H01F29/14
Domestic Patent References:
| JP2002530854A | ||||
| JP7307235A | ||||
| JP2224309A | ||||
| JP1093104A | ||||
| JP2005510076A | ||||
| JP2007123671A | ||||
| JP55127859A | ||||
| JP63086409A |
Foreign References:
| WO2001090835A1 | ||||
| US3351860 |
Attorney, Agent or Firm:
▲吉▼川 俊雄