Title:
DIRECT CURRENT REACTOR
Document Type and Number:
Japanese Patent JP2005317623
Kind Code:
A
Abstract:
To miniaturize a direct current reactor and reduce the cost of the same, by constituting a permanent magnet so as not to be easily demagnetized, using a simple constitution.
The direct current reactor is provided with a coil 3, wound around an E-type core 1, a bias flux generating unit, comprising a C-type core 2 for generating bias flux reverse to a main flux generated by the coil 3, and a permanent magnet 4. In such a direct current reactor, since an alternating current or high-frequency flux is made unlikely to pass through the bias flux generating unit in this case, it is realized by making short-circuit rings 6a, 6b penetrate a part of the C-type core 2.
Inventors:
TOYOSAKI JIRO
KAIDA HIDETOSHI
ISHII SHINICHI
KAIDA HIDETOSHI
ISHII SHINICHI
Application Number:
JP2004131267A
Publication Date:
November 10, 2005
Filing Date:
April 27, 2004
Export Citation:
Assignee:
FUJI ELECTRIC HOLDINGS
International Classes:
H01F27/28; H01F27/24; H01F37/00; (IPC1-7): H01F37/00; H01F27/24; H01F27/28
Attorney, Agent or Firm:
Iwao Yamaguchi
Yoshihide Komada
Kiyoshi Matsuzaki
Yoshihide Komada
Kiyoshi Matsuzaki
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