Title:
CORE, BOBBIN AND MOUNTING BOARD
Document Type and Number:
Japanese Patent JP2005109399
Kind Code:
A
Abstract:
To provide a core by which noises generated to a peripheral circuit caused by a line of magnetic force from a coil are reduced at a lower cost, without adding components to reduce noise or applying a shield, a bobbin forming the coil wound around the core, and a mounting board for mounting the core.
The core 10 includes a hollow portion 11 of a nearly spherical shape in outline and an axial portion 12 provided along a center axis L2 of a sphere. When the coils 31, 32 are wound around the axial portion 12 provided along the center axis L2 of the sphere, the line of magnetic force L1 generated from the coils 31, 32 is produced along the nearly spherical outline of the hollow portion 11.
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Inventors:
SATAKE YUUKI
Application Number:
JP2003344359A
Publication Date:
April 21, 2005
Filing Date:
October 02, 2003
Export Citation:
Assignee:
SANSHIN DENKI KK
International Classes:
H01F27/28; H01F27/24; H01F27/255; (IPC1-7): H01F27/24; H01F27/255; H01F27/28
Attorney, Agent or Firm:
Hideo Takino
Hiroshi Ochi
Sadao Matsumura
Isamu Kakiuchi
Hiroshi Ochi
Sadao Matsumura
Isamu Kakiuchi