Title:
POWER SUPPLY DEVICE AND POWER SUPPLY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/223709
Kind Code:
A1
Abstract:
A power supply device (250) is provided with: a plurality of repeating coils (70a-70f); and a power receiving circuit (230) that is connected to a power receiving coil and that receives power used in a mobile object. As the mobile object (200) moves, the plurality of repeating coils successively relay the supply of power between power transmission coils (40) arranged along a plane on which the mobile object moves and the power receiving coil (240). Each of the plurality of repeating coils for relaying power has: a first coil (71) that is magnetically coupled with a power transmission coil according to the movement position of the mobile object; a second coil (72) that is magnetically coupled with the power receiving coil when the first coil is magnetically coupled with the power transmission coil; and a connection circuit (90) that connects the first coil and the second coil. In this connection circuit, resonance capacitors (Ct1, Cw1) involved in setting of a resonance frequency of at least one of the first coil and the second coil have a parallel characteristic. With this configuration, the power supply device supplies power from the power transmission coils to the power receiving coil.
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Inventors:
SUMIYA HAYATO (JP)
TAKAHASHI EISUKE (JP)
YAMAGUCHI NOBUHISA (JP)
FUJIMOTO HIROSHI (JP)
SHIMIZU OSAMU (JP)
TAKAHASHI EISUKE (JP)
YAMAGUCHI NOBUHISA (JP)
FUJIMOTO HIROSHI (JP)
SHIMIZU OSAMU (JP)
Application Number:
PCT/JP2023/014412
Publication Date:
November 23, 2023
Filing Date:
April 07, 2023
Export Citation:
Assignee:
DENSO CORP (JP)
UNIV TOKYO (JP)
UNIV TOKYO (JP)
International Classes:
H02J50/50; B60L5/00; B60L53/122; B60M7/00; H02J7/00; H02J50/12; H02J50/40
Foreign References:
| JP2021093883A | 2021-06-17 | |||
| JP2021023003A | 2021-02-18 | |||
| JP2021061728A | 2021-04-15 |
Attorney, Agent or Firm:
BENRISHIHOJIN MEISEI INTERNATIONAL PATENT FIRM (JP)
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