kQ POWER RECEIVER WIRELESS POWER TRANSMISSION SYSTEM AND kQ-VALUE CALCULATION METHOD

摘要

The kQ value of the electricity received by radio by using the magnetic field resonance or the electric field resonance as the electric power from the at least one electric power transmitter is set to a value indicating the degree of coupling of the magnetic field or the electric field k value and a Q value indicating a degree of loss of a magnetic field or an electric field, wherein the electric power supply includes: an electric power receiving coil for wirelessly receiving electric power from the electric power transmission; And a power detecting resistor for detecting power by the power receiving coil, wherein the resistance value of the power detecting resistor is controlled so that the resistance of the power receiving coil and the resistance of the power detecting resistor And the receiving voltage from the receiving coil to calculate the receiving power, and from the transmission power output from the transmission and the receiving power, the measurement efficiency Calculated, and from the resistance ratio and the measured efficiency, kQ calculated value of the number of electricity.