Patent ID: 8026694

Claim:
A power transmission control device provided in a power transmission device, the power transmission device being included in a non-contact power transmission system that performs non-contact power transmission from the power transmission device to a power reception device through a primary coil and a secondary coil that are electromagnetically coupled, the power transmission control device comprising, a power-transmission-side control circuit that controls power transmission to the power reception device, the power-transmission-side control circuit causing the power transmission device to perform temporary power transmission to the power reception device to enable ID authentication on the power reception device when a switch provided in a power-transmission-side instrument has been turned ON, performing ID authentication based on ID authentication information transmitted from the power reception device that has received the temporary power transmission, causing the power transmission device to perform normal power transmission to the power reception device after the conformity of the power reception device has been authenticated by the ID authentication, and causing the power transmission device to stop the temporary power transmission and return to an initial state that waits for the switch to be turned ON when the ID authentication information from the power reception device has not been received within a given period of time after the temporary power transmission has started, or the ID authentication has failed.