Resonance type power transmission system, transmitting device, and power supply position control system

A resonance type power transmission system comprising:

• a transmitting device including plural transmitting antennas, and a receiving device including a receiving antenna;
• wherein the transmitting device comprises:
• one transmission power supply to output electric power, whose frequency matches a resonance frequency of each of the transmitting antennas, on a basis of input power;
• plural switches respectively provided for the transmitting antennas, the switches being switchable to connect or disconnect supply lines for supplying the electric power outputted by the transmission power supply to the transmitting antennas;
• a parameter detector comprised of a function of preventing breakage of the transmission power supply, the function being included by the transmission power supply, to detect parameters regarding the transmission power supply, the parameters being changed as the receiving antenna gets close to the transmitting antennas;
• and
• a switch controller to estimate a position of the receiving antenna from a result of the detection performed by the parameter detector, and to perform switching control on the switches in accordance with the position of the receiving antenna.

A transmitting device comprising:

• plural transmitting antennas;
• one transmission power supply to output electric power, whose frequency matches a resonance frequency of each of the transmitting antennas, on a basis of input power;
• plural switches respectively provided for the transmitting antennas, the switches being switchable to connect or disconnect supply lines for supplying the electric power outputted by the transmission power supply to the transmitting antennas;
• a parameter detector comprised of a function of preventing breakage of the transmission power supply, the function being included by the transmission power supply, to detect parameters regarding the transmission power supply, the parameters being changed as a receiving antenna of a receiving device gets close to the transmitting antennas;
• and
• a switch controller to estimate a position of the receiving antenna from a result of the detection performed by the parameter detector, and to perform switching control on the switches in accordance with the position of the receiving antenna.

A power supply position control system comprising:

• a transmitting device including plural transmitting antennas, and a receiving device including a receiving antenna;
• wherein the transmitting device comprises:
• one transmission power supply to output electric power, whose frequency matches a resonance frequency of each of the transmitting antennas, on a basis of input power;
• plural switches respectively provided for the transmitting antennas, the switches being switchable to connect or disconnect supply lines for supplying the electric power outputted by the transmission power supply to the transmitting antennas;
• a parameter detector comprised of a function of preventing breakage of the transmission power supply, the function being included by the transmission power supply, to detect parameters regarding the transmission power supply, the parameters being changed as the receiving antenna gets close to the transmitting antennas, and
• a switch controller to use a protective function of the transmission power supply, estimate a position of the receiving antenna from a result of the detection performed by the parameter detector, and perform switching control on the switches in accordance with the position of the receiving antenna.