Patent ID: 8633615

Claim:
A wireless power transmission/reception apparatus, comprising: a wireless power transmission unit for receiving power from an outside area, generating a wireless power signal to be wirelessly transmitted, and wirelessly transmitting the generated wireless power signal; and a wireless power reception unit installed in each of the power consumption devices, and configured to receive the wireless power signal from the wireless power transmission unit in a magnetic resonance manner, provide the wireless power signal to at least one connected power consumption device, and return a remaining wireless power signal, not consumed by at least one unconnected power consumption device, to the wireless power transmission unit, whereby, the wireless power transmission unit sets an initial resonance frequency, transmits a wireless power signal to the wireless power reception unit by using the initial resonance frequency, receives a returned wireless power signal returned from the wireless power reception units depending on the frequency adjustment while continuously tuning the frequency so as to search for a minimum inflection point of the returned wireless power signal, determines the minimum inflection point as a resonance frequency, detects the number of power consumption devices installed with wireless power reception units in a state of receiving wireless power signals depending on the determined resonance frequency and transmits the wireless power signals by using resonance frequency appropriate for the number of power consumption devices installed with wireless power reception units in the detected reception state.