Title:
コイル部品及び表面実装型パルストランス
Document Type and Number:
Japanese Patent JP5353947
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To restrain overshoot or undershoot more inexpensively than addition of a notch filter.SOLUTION: A surface mounted pulse transformer 10 comprises: a winding core part 11a; and wires S1, S2 bifilar-wound around the winding core part 11a by plural turns. A relative position of the wires S1, S2 at least in one turn (turn A1, A2) is reversed compared to the other turns. Thereby, the reverse turn is provided to increase a leakage magnetic flux, so that overshoot or undershoot can be restrained. Also, only the reverse turn may be provided, and therefore, overshoot or undershoot can be restrained more inexpensively than addition of a notch filter.
Inventors:
Tomonari Toshio
High Nobuo Ki
Kimio Asakawa
Tsuchida Setsu
High Nobuo Ki
Kimio Asakawa
Tsuchida Setsu
Application Number:
JP2011117969A
Publication Date:
November 27, 2013
Filing Date:
May 26, 2011
Export Citation:
Assignee:
tdk Corporation
International Classes:
H01F19/00; H01F19/04; H01F27/00; H01F27/29; H01F41/10
Domestic Patent References:
| JP2007036159A | ||||
| JP2006245298A | ||||
| JP2009021558A | ||||
| JP2002246244A | ||||
| JP2010109267A |
Attorney, Agent or Firm:
Mitsuhiro Washito
Ogata Japanese
Yasuyuki Kurose
Takuya Mitani
Ogata Japanese
Yasuyuki Kurose
Takuya Mitani