Patent ID: 9093857
Filing Date: 2015-07-28
Classification: H02J

Abstract:
1. A charging device comprising: a receptacle upon which a plurality of mobile devices that issue charge order instructions are placed, each of the plurality of the mobile devices includes a rechargeable battery, a receiver coil that receives AC power, a rectifier that rectifies the AC power into DC power, a plurality of capacitors disposed between the receiver coil and the rectifier, and a switch that selectably connects or disconnects the receiver coil one or more of the capacitors; a transmitter coil that moves on a plane parallel to the receptacle and wirelessly transmits AC power to a selected mobile device of the plurality of mobile devices placed on the receptacle; and a controller that determines a mobile charge order of the plurality of mobile devices based on capacitances of capacitors connected to respective receiver coils of the plurality of mobile devices, and controls a movement of the transmitter coil to a predetermined location in the receptacle on the basis of the mobile charge order so as to charge the rechargeable battery of the selected mobile device.