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Title:
CONTACTLESS POWER FEEDING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/181280
Kind Code:
A1
Abstract:
A contactless power feeding system for contactlessly feeding electric power from a power transmission device to a power reception device, wherein, at the operating frequency of an angular frequency ω0: the capacitance of a primary side capacitor (114) of a primary side resonance circuit (110) is set to resonate with a self-inductance L1 of a primary side coil (112); the capacitance of a tertiary side capacitor (314) of a tertiary side resonance circuit (310) is set to resonate with a self-inductance L3 of a tertiary side coil (312); and the capacitance of a secondary side capacitor (214) of a secondary side resonance circuit (210) is set such that the reactive power component of alternating-current power due to the respective self-inductances and mutual inductances of the primary side coil (112), the secondary side coil (212), and the tertiary side coil (312) decreases.

Inventors:
TAKAHASHI MASAYA (JP)
SHIBANUMA MITSURU (JP)
KATO KAZUYUKI (JP)
NAKAYASHIKI YUSEI (JP)
TAKAHASHI EISUKE (JP)
YAMAGUCHI NOBUHISA (JP)
Application Number:
PCT/JP2022/004229
Publication Date:
September 01, 2022
Filing Date:
February 03, 2022
Export Citation:
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Assignee:
DENSO CORP (JP)
International Classes:
H01F38/14; B60L53/122; B60M7/00; H02J7/00; H02J50/12
Domestic Patent References:
WO2017159330A12017-09-21
Foreign References:
JP2016101079A2016-05-30
JP2002508916A2002-03-19
Attorney, Agent or Firm:
BENRISHIHOJIN MEISEI INTERNATIONAL PATENT FIRM (JP)
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