Patent ID: 11916409
Assignee: TOYODA GOSEI CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 4:
5. A power transmitting method for transmitting power to a power receiving device, the power transmitting method comprising:
transmitting power to the power receiving device through contactless power supply;
switching a power transmission mode used to transmit the power between a normal output mode and a limit mode in which a transmitted power is more limited than in the normal output mode; and
executing communication with the power receiving device,
wherein switching the power transmission mode includes:
determining whether the power receiving device is a registered power receiving device based on information related to the power receiving device obtained through the communication, the registered power receiving device having been registered in advance and including a mobile communication terminal carried by a person;
determining whether the registered power receiving device is located inside a power transmission range that allows the power receiving device to be supplied with power through the contactless power supply;
setting 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
setting 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 transmitting power to the power receiving device includes transmitting a power transfer signal to the power receiving device by a phased array antenna including multiple antennas, the power transfer signal being microwaves.