Title:
COIL COMPONENT, CIRCUIT BOARD, AND POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/034035
Kind Code:
A1
Abstract:
This coil component is provided with: a first coil, a second coil, and a core. The first coil is provided with: a wound part formed by winding a winding wire; a current input-side lead-out part extending from the wound part; and a current output-side lead-out part. The second coil is provided with: a wound part formed by winding a winding wire; a current input-side lead-out part extending from the wound part; and a current output-side lead-out part, and is disposed to cancel the magnetic flux generated by the first coil. The core is provided with: a pair of side legs on which the wound part of the first coil and the wound part of the second coil are disposed, respectively; a central leg interposed between the two side legs; and a pair of connecting parts which connect the side legs and the central leg to be parallel with each other. When a plane including the axis of the first coil and the axis of the second coil is set as a reference plane, the two lead-out parts of the first coil and the two lead-out parts of the second coil are provided on the same side of the reference plane.
Inventors:
ZHENG XIAOGUANG (JP)
TASHIRO KEIJI (JP)
TASHIRO KEIJI (JP)
Application Number:
PCT/JP2017/019343
Publication Date:
February 22, 2018
Filing Date:
May 24, 2017
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
H01F30/10; H02M3/28; H05K1/02; H05K1/18
Domestic Patent References:
| WO2009037822A1 | 2009-03-26 |
Foreign References:
| JP2011234549A | 2011-11-17 | |||
| JP2012054485A | 2012-03-15 | |||
| JP2013219395A | 2013-10-24 | |||
| JPH09275269A | 1997-10-21 |
Attorney, Agent or Firm:
SUNCREST PATENT AND TRADEMARK ATTORNEYS (JP)
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