WIRELESS CHARGE ACCORDING TO CHARGE CHARACTERISTICS

摘要

According to an embodiment disclosed in the present invention, a power receiving device includes a power receiving unit which receives a wireless power signal from a power transmission device, and modulates the wireless power signal; a charge unit which charges a battery by using the received wireless power signal; and a control unit which transmits control information for power control into the power transmission device through the wireless power signal, and the power transmitted through the received wireless power signal is controlled based on the control information included in the message.