Title:
POWER TRANSMISSION DEVICE, NON-CONTACT POWER SUPPLY SYSTEM, POWER TRANSMISSION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2023/166821
Kind Code:
A1
Abstract:
A power transmission device (100) for supplying power to a mobile power receiving device (200) in a non-contact manner comprises: a power transmission resonant circuit (110) having a power transmitting coil (112) and a power transmission resonant capacitor; a power transmission circuit (130) for supplying AC power to the power transmission resonant circuit; a power transmission request signal reception unit (172) for receiving a power transmission request signal originating from the power receiving device; and a switching unit (174) which is for switching the value of a current flowing through the power transmitting coil and which changes the input impedance of the power transmission resonant circuit upon reception of the power transmission request signal to thereby switch the value of the current flowing through the power transmitting coil to the value of a current that can be supplied to the power receiving device.
Inventors:
OBAYASHI KAZUYOSHI (JP)
TANI KEISUKE (JP)
YAMAGUCHI NOBUHISA (JP)
KANESAKI MASAKI (JP)
TAKEMURA YUICHI (JP)
HASHIMOTO TOSHIYA (JP)
TSUGE SHOGO (JP)
IKEMURA RYOSUKE (JP)
TANI KEISUKE (JP)
YAMAGUCHI NOBUHISA (JP)
KANESAKI MASAKI (JP)
TAKEMURA YUICHI (JP)
HASHIMOTO TOSHIYA (JP)
TSUGE SHOGO (JP)
IKEMURA RYOSUKE (JP)
Application Number:
PCT/JP2022/046934
Publication Date:
September 07, 2023
Filing Date:
December 20, 2022
Export Citation:
Assignee:
DENSO CORP (JP)
TOYOTA MOTOR CO LTD (JP)
TOYOTA MOTOR CO LTD (JP)
International Classes:
H02J50/12; B60L5/00; B60L53/122; B60L53/65; B60L53/66; B60M7/00; H02J7/00; H02J50/80; H02J50/90
Foreign References:
| JP2016063726A | 2016-04-25 | |||
| JP2021023094A | 2021-02-18 |
Attorney, Agent or Firm:
BENRISHIHOJIN MEISEI INTERNATIONAL PATENT FIRM (JP)
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