Wireless charging device and electric energy recycling method thereof
AssigneePrimax Electronics Ltd.
InventorsHUNG-WEI CHIU, CHUN-HAO LO, YUNG-HSIEN HO
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Abstract
A wireless charging device and an electric energy recycling method are provided. The wireless charging device includes a casing, a transmitter coil, a recycling coil and a recycling battery. When a magnetic flux is generated by the transmitter coil, a first portion of the magnetic flux is transmitted to an electronic device, and a 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 a charging unit, so that the recycling battery is charged by the charging current.
Claims12
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.
An electric energy recycling method for a wireless charging device, the electric energy recycling method comprising steps of:
- providing a driving voltage to a transmitter coil, so that the transmitter coil generates a fixed magnetic flux;
- and
- receiving a required load information of an electronic device, and adjusting a recycling load of a recycling coil according to the required load information;
- wherein a first portion of the fixed magnetic flux is received by a receiver coil of the electronic device according to the required load information, so that the electronic device is charged according to the first portion of the fixed magnetic flux, wherein a second portion of the fixed magnetic flux is received by the recycling coil according to the recycling load, so that a recycling battery is charged according to the second portion of the fixed magnetic flux.
Dependencies are inferred from the claim text.