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Patent Searching and Data


Title:
CURRENT BALANCING TRANSFORMER
Document Type and Number:
WIPO Patent Application WO/2006/120957
Kind Code:
A1
Abstract:
There is provided a single-structure transformer part capable of balancing current flowing to three or four loads while reducing the number of parts, the mounting area, and the cost. The transformer uses a bobbin having a plurality of winding frames on the same winding axis and using coils wound on the respective winding frames of the bobbin in combination with the magnetic core. The bobbin (20) has three winding regions divided by two grooves for arranging the magnetic core at the intermediate portions. Each of the winding regions has two winding frames. A current dividing coil of the first stage is wound on the both winding frames of the central winding region and a current dividing coil of the second stage is wound in each of the winding regions located at both sides. The magnetic core (24) is arranged so that coils of the respective winding regions form a closed magnetic path.

Inventors:
IKEDA YUTAKA (JP)
AKIYAMA HIDEYUKI (JP)
HIRONAKA JUN (JP)
Application Number:
PCT/JP2006/309082
Publication Date:
November 16, 2006
Filing Date:
May 01, 2006
Export Citation:
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Assignee:
FDK CORP (JP)
IKEDA YUTAKA (JP)
AKIYAMA HIDEYUKI (JP)
HIRONAKA JUN (JP)
International Classes:
H01F38/08; H01F30/04
Foreign References:
JP2004335443A2004-11-25
JPH067214U1994-01-28
JPH10149932A1998-06-02
JPS5940513A1984-03-06
Attorney, Agent or Firm:
ISSHIKI & CO. (12-7 Shinbashi 2-chom, Minato-ku Tokyo 04, JP)
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