WIRELESS POWER TRANSMISSION DEVICE, SUPPLY POWER CONTROL METHOD FOR WIRELESS POWER TRANSMISSION DEVICE, AND METHOD FOR MANUFACTURING WIRELESS POWER TRANSMISSION DEVICE

摘要

A wireless power transmission apparatus supplies power from a power-supplying module equipped with a power-supplying coil and a power-supplying resonator to a power-receiving module equipped with a power-receiving coil and a power-receiving resonator by changing magnetic field. In a supply power control method for the wireless power transmission device, the power is supplied with such a value that the driving frequency of the power supplied to the power-supplying module does not match with the resonance frequencies of the power-supplying module and the power-receiving module. The element values of circuit elements constituting the power-supplying module and the power-receiving module are used as parameters, and by changing each of the parameters, the input impedance (Zin) of the wireless power transmission apparatus is set to adjust the power to be supplied.

主权项

1. A supply power control method for a wireless power transmission apparatus configured to supply power from a power-supplying module comprising at least one of a power-supplying coil and a power-supplying resonator to a power-receiving module comprising at least one of a power-receiving resonator and a power-receiving coil, while varying a magnetic field, wherein
the power is supplied with a value such that a driving frequency of the power supplied to the power-supplying module does not match with the resonance frequencies of the power-supplying module and the power-receiving module, the power supplied is adjusted, by varying, as parameters, element values of a plurality of circuit elements constituting the power-supplying module and the power-receiving module, to set the input impedance (Zin) of the wireless power transmission apparatus.