Patent ID: 9583963
Date: 2017-02-28
CPC Classifications: H02J

Claim:
1. An apparatus for controlling matching in a source-target structure that transmits and receives resonance power, the apparatus comprising: a target resonator configured to receive resonance power through magnetic-coupling with a resonance power transmitter; a rectifier configured to rectify the received resonance power to generate a direct current (DC) voltage and to provide the DC voltage to a load; a load sensor configured to detect the impedance of the load that is provided the DC voltage by the rectifier and a variation in the impedance of the load; and a target communicating unit configured to modulate information of the variation in the impedance of the load and transmit the modulated information to the resonance power transmitter, the information being used to control an impedance of a source resonator for matching with the varied impedance of the load; a matching-controller configured to control the impedance of the target resonator to match with the varied impedance of the load, wherein the impedance of the load, the impedance of the target resonator, and the impedance of the source resonator are matched, wherein an impedance of the target resonator is controlled at a point in time at which an amount of required power of the load changes, a received-power monitor configured to monitor resonance power that is received from the resonance power transmitter; a reflected-power monitor configured to monitor a reflected-power of the received resonance power; and a target matching controller (MCU) configured to control the matching-controller to perform impedance-matching in response to either one or both of the reflected power and a variation in power to be used by the load being sensed.