US 11,916,409 B2
Power transmitting device and power transmitting method
Atsushi Sugihara, Kiyosu (JP); Shinichiro Fuki, Kiyosu (JP); Kazuhito Kawamura, Kiyosu (JP); and Yuki Tokuyama, Kiyosu (JP)
Assigned to TOYODA GOSEI CO., LTD., Aichi-pref. (JP)
Filed by TOYODA GOSEI CO., LTD., Kiyosu (JP)
Filed on Jan. 6, 2023, as Appl. No. 18/150,882.
Claims priority of application No. 2022-014256 (JP), filed on Feb. 1, 2022.
Prior Publication US 2023/0291245 A1, Sep. 14, 2023
Int. Cl. H02J 50/80 (2016.01); H02J 7/00 (2006.01); H02J 50/90 (2016.01)
CPC H02J 50/80 (2016.02) [H02J 7/00045 (2020.01); H02J 7/007188 (2020.01); H02J 50/90 (2016.02)] 6 Claims
OG exemplary drawing
 
1. A power transmitting device that transmits power to a power receiving device, the power transmitting device comprising:
a power transmission unit configured to transmit power to the power receiving device through contactless power supply;
processing circuitry configured to switch a power transmission mode of the power transmission unit between a normal output mode and a limit mode in which a transmitted power is more limited than in the normal output mode; and
a transmission-side communication unit configured to execute communication with the power receiving device,
wherein the processing circuitry is configured to:
determine whether the power receiving device is a registered power receiving device based on information related to the power receiving device obtained from the transmission-side communication unit, the registered power receiving device having been registered in advance and including a mobile communication terminal carried by a person;
determine whether the registered power receiving device is located inside a power transmission range of the power transmission unit;
set the power transmission mode to the normal output mode when determining that the registered power receiving device is located inside the power transmission range; and
set the power transmission mode to the limit mode when determining that the registered power receiving device is not located inside the power transmission range, and
wherein the power transmission unit includes a phased array antenna including multiple antennas configured to transmit a power transfer signal to the power receiving device, the power transfer signal being microwaves.