Patent ID: 9450448
Filing Date: 2016-09-20
CPC Classification: H02J

Claim Text:
1. A wireless charging device for wirelessly charging an electronic device, the wireless charging device comprising: a casing; a transmitter coil disposed within the casing; a first driving circuit connected with the transmitter coil; a recycling coil; a recycling battery; and a second driving circuit connected between the recycling battery and the recycling coil, and comprising a charging unit, wherein when the first driving circuit receives an electric power and provides a driving voltage to the transmitter coil, a magnetic flux is generated by the transmitter coil, wherein a first portion of the magnetic flux is transmitted to a receiver coil of the electronic device, and a second portion of the magnetic flux is recycled by the recycling coil, wherein after the second portion of the magnetic flux is recycled by the recycling coil, the second portion of the magnetic flux is converted into a charging current by the charging unit, so that the recycling battery is charged by the charging current.