WIRELESS POWER TRANSMISSION APPARATUS AND WIRELESS POWER RELAY APPARATUS AND WIRELESS POWER RECEPTION APPARATUS

摘要

The present invention relates to a device for transmitting and receiving power wirelessly, wherein the device transmits power wirelessly through a magnetic coupling with a target resonator from a source resonator and controls the impedance of the source resonator by using a plurality of matching bars located within the source resonator. [Reference numerals] (220) Impedance control unit