Title:
WIRELESS POWER TRANSFER DEVICE AND WIRELESS POWER SUPPLY SYSTEM
Document Type and Number:
Japanese Patent JP2018125815
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To allow a wireless power transfer device according to one embodiment of the present invention to perform wireless power transfer to a plurality of wireless power reception devices at a desired distribution ratio.SOLUTION: A wireless power transfer device according to one embodiment of the present invention is configured to send electric power to a plurality of wireless power reception devices with radio waves, and comprises a plurality of antennas, a computing unit which computes transmission-time amplitudes and phases of signals for power transmission corresponding to the plurality of antennas respectively, and a signal circuit which transmits the signals for power transmission through the plurality of antennas based upon the amplitude and phases computed by the computing unit. The computing unit computes the transmission-time amplitudes and phases of the signals for power transmissions based upon reception-time amplitudes and phases of the signals for power transmission by the wireless power reception devices and distribution ratios of electric power corresponding to the wireless power reception devices.SELECTED DRAWING: Figure 2
Inventors:
HIGAKI MAKOTO
MURATA KENTARO
MURATA KENTARO
Application Number:
JP2017018998A
Publication Date:
August 09, 2018
Filing Date:
February 03, 2017
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
H01Q3/26; H01Q3/36; H01Q21/00; H02J50/23; H02J50/40; H04B7/04
Attorney, Agent or Firm:
Hiroyuki Nagai
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura
Takeshi Sekine
Suzuki Junsei
Takashi Katagiri
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura
Takeshi Sekine
Suzuki Junsei
Takashi Katagiri