Wireless power transmission device, method for controlling wireless power transmission device, and wireless power system

A control method of a wireless power transmission apparatus comprising a first communication module, including a communication circuit, configured to perform wireless communication with an electronic device, a power transmitting coil configured to transmit wireless power to the electronic device, a driving circuit configured to apply a current to the power transmitting coil, and a processor electrically connected to the first communication module and the driving circuit, the control method comprising:

• receiving, ley the first communication module, a detection signal of a second communication module, including a communication circuit, included in the electronic device;
• periodically transmitting the wireless power to the electronic device through the power transmitting coil;
• controlling, by the processor, the first communication module to acquire control information stored in a second communication module of the electronic device for a first time period during which transmission of the wireless power is stopped;
• and
• controlling, by the processor, the driving circuit to adjust the wireless power based on the control information.