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Title:
COMPOUND SMOOTHING INDUCTOR AND SMOOTHING CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2018/012059
Kind Code:
A1
Abstract:
A compound smoothing inductor 10 capable of responding to increased demand for more compact size, higher frequency for the drive frequency, etc., is provided with a coupling transformer 20, a first smoothing inductor 30, and a second smoothing inductor 40, said elements being integrated on a substrate 50. Two input terminals 11A, 11B are both connected to the coupling transformer 20, one output unit of the coupling transformer 20 is connected to the first smoothing inductor 30, the other output unit of the coupling transformer 20 is connected to the second smoothing inductor 40, the first smoothing inductor 30 and the second smoothing inductor 40 are both connected to an output terminal 12, and the mutual inductance of the coupling transformer 20 is higher than either the self-inductance of the first smoothing inductor 30 or the self-inductance of the second smoothing inductor 40.

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Inventors:
FUJIMOTO, Mitsunao (1-7, Yukigaya-otsukamachi, Ota-k, Tokyo 01, 〒1458501, JP)
KONNO, Yukio (1-7, Yukigaya-otsukamachi, Ota-k, Tokyo 01, 〒1458501, JP)
Application Number:
JP2017/014081
Publication Date:
January 18, 2018
Filing Date:
April 04, 2017
Export Citation:
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Assignee:
ALPS ELECTRIC CO., LTD. (1-7 Yukigaya-otsukamachi, Ota-ku Tokyo, 01, 〒1458501, JP)
International Classes:
H01F17/04; H01F27/00; H01F27/24; H01F27/28; H01F37/00; H02M3/155
Domestic Patent References:
WO2015037204A12015-03-19
Foreign References:
JP2010027758A2010-02-04
JP2007184509A2007-07-19
JPS5853111U1983-04-11
JP2009117676A2009-05-28
Attorney, Agent or Firm:
OKUBO, Katsuyuki (13-12-201, Rokubancho Chiyoda-k, Tokyo 85, 〒1020085, JP)
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