Patent ID: 9509374
Filing Date: 2016-11-29
CPC Classification: H02J,H04B

Claim Text:
1. A wireless power transmission apparatus, comprising: a wireless power transmitter configured to receive an input power, generate a wireless power signal, wirelessly transmit the generated wireless power signal, receive a reflection wireless power signal to determine whether or not a loading is present, and, in response to a determination that loading is present, wirelessly transmit a reconfigured wireless power signal by using a substantially optimal impedance and a resonance frequency corresponding to the loading to supply power thereto for supplying and reflection of a remaining wireless power signal, that is not consumed, to the wireless power transmitter, wherein the wireless power transmitter is configured to calculate a ratio of the transmitted wireless power signal to the reflection wireless power signal and determine presence of the loading according to the calculated ratio of the transmitted wireless power signal to the reflection wireless power signal, and wherein the wireless power transmitter comprises a frequency oscillator configured to receive the input power and generate the wireless power signal; a power amplifier configured to output an amplified wireless power signal; a transmitter configured to input and wirelessly transmit the wireless power signal or the amplified wireless power signal; a transmitting controller configured to determine whether or not the loading is present; and a power pass switch configured to connect the frequency oscillator to the transmitter in response to the transmitting controller determining whether or not the loading is present and connect the frequency oscillator to the power amplifier in response to the wireless power transmitter supplying power to the loading.