Apparatus and method for transmitting power and transceiving data using mutual resonance, and apparatus and method for receiving power and transceiving data using mutual resonance

An apparatus configured to receive power, and transceive data, using mutual resonance, the apparatus comprising:

• a power receiver configured to wirelessly receive power from a device, using a power transmission frequency of the device as a resonant frequency;
• a communication unit configured to transceive data to and from the device, using a communication frequency of the device as a resonant frequency;
• and
• a controller configured to determine a charging state of a load, and determine the data to be transmitted to the device based on the charging state.

A method of transmitting power, and transceiving data, using mutual resonance, the method comprising:

• wirelessly transmitting wake-up power from a power transmission resonator to a device, using a power transmission frequency as a resonant frequency;
• transmitting communication power from a communication resonator to the device, using a communication frequency as a resonant frequency, when the wake-up power is transmitted;
• determining a charging state of the device based on a change in an amplitude of the transmitted communication power;
• and
• controlling an amount of charging power to be transmitted to the device, using the power transmission frequency based on the charging state.

A method comprising:

• wirelessly transmitting wake-up power to an apparatus, using a power transmission frequency;
• wirelessly transmitting communication power to the apparatus, using a communication frequency;
• determining whether data is received from the apparatus;
• and
• wirelessly transmitting charging power to the apparatus, using the power transmission frequency, in response to the data being determined to be received.