CHARGING METHOD OF MULTI-NODE WIRELESS CHARGING SYSTEM USING MAGNETIC FIELD COMMUNICATION

摘要

PURPOSE: A charging method of a multi-node wireless charging system using a magnetic field communication is provided to obtain an efficient wireless charge system by controlling the time or intensity of wireless energy transfer according to the charge state. CONSTITUTION: A charge requirement request(520) is executed after the completion of an association process(510). A wireless power transmission device transmits a charge requirement request(522) through a request section. A wireless charging device determines a received packet to transmit a charge requirement response through a response section. The wireless power transmission device receives the charge requirement response. The charge request response(524) includes the node ID and charge data of the wires charging device. The wireless power transmission device can send a charge requirement request to a specific node during transmission of a charging requirement request packet.