Dual-sided wireless charging device

• US 20120001590A1
• Filed: 06/29/2011
• Published: 01/05/2012
• Est. Priority Date: 07/02/2010
• Status: Abandoned Application

• Current Assignee: Ming-Hsiang Yeh
• Original Assignee: Ming-Hsiang Yeh
• Inventors: Yeh, Ming-Hsiang
• Application Number:
  US13/067,820
• Publication Number:
  US 20120001590A1
• Time in Patent Office: Days
• US Class Current: 320/108
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/40 using two or more transmitting or receiving devices H02J50/50 takes precedence
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H02J 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H02J 7/0044 specially adapted for holding portable devices containing batteries H02J7/0045 takes precedence
• CPC Class Codes: H02J 7/0045 concerning the insertion or the connection of the batteries

Abstract

A dual-sided wireless charging device includes a main body, which includes a seat, a coupling member, and a power member. The seat and the coupling member are mounted to each other at a right angle. The coupling member has a first surface and a second surface, which are respectively provided with a transmitter circuit, whereby at least one electronic device having a receiver circuit is attachable to the first surface and/or the second surface to perform charging operation on both surfaces to thereby increase charging efficiency and reduce expense.

Claims

1. A dual-sided wireless charging device adapted to be applied to at least one electronic device comprising a receiver circuit, the dual-sided wireless charging device comprising:

a main body, which comprises a seat, a coupling member, and a power member, the seat and the coupling member being coupled to each other, the coupling member having a first surface and a second surface, the electronic device being selectively attachable to the first surface or the second surface; and

a transmitter circuit, which is arranged in the coupling member, the power member supplies electrical power to the transmitter circuit to allow the transmitter circuit to convert the electrical power into an alternate-current signal, which is transmitted by the transmitter circuit to the receiver circuit of the electronic device in a wireless manner, the receiver circuit converting the alternate-current signal into electrical power for performance of charging operation.

2. The dual-sided wireless charging device as claimed in claim 1, wherein the coupling member and the electronic device are attached to each other through one of clip, tying wire, magnet, loop-and hoop fastener, and soft gel.

3. The dual-sided wireless charging device as claimed in claim 1, wherein the transmitter circuit of the coupling member and the receiver circuit of the electronic device are positionable with respect to each other through one of mateable dimple and projection, magnetic positioning, sound-based positioning, and light-based positioning.

4. The dual-sided wireless charging device as claimed in claim 1, wherein the transmitter circuit comprises a power amplifying circuit and a resonance circuit, the power amplifying circuit being connected to the power member, the power amplifying circuit converting the electrical power supplied from the power member into an alternate-current signal and amplifying the alternate-current signal, the resonance circuit being connected to the power amplifying circuit, the resonance circuit transmitting the alternate-current signal that is amplified by the power amplifying circuit to the receiver circuit.

5. The dual-sided wireless charging device as claimed in claim 4, wherein the transmitter circuit further comprises a detection control circuit, a processing circuit, and a driving circuit, the detection control circuit being connected to the resonance circuit, the detection control circuit detecting magnitude of the alternate-current signal transmitted by the resonance circuit, the processing circuit being connected to the detection control circuit, the processing circuit being provided with a predetermined signal, the processing circuit comparing the predetermined signal with the alternate-current signal to generate a frequency regulation signal, the driving circuit being connected to the processing circuit and the power amplifying circuit, the driving circuit regulating signal frequency based on the frequency regulation signal and the driving circuit regulating power of the power amplifying circuit for feeding back and controlling the alternate-current signal transmitted by the resonance circuit to provide stabilized power of the alternate-current signal.

6. The dual-sided wireless charging device as claimed in claim 4, wherein the power amplifying circuit and the resonance circuit are combined as a power integration circuit.

7. The dual-sided wireless charging device as claimed in claim 6, wherein the power integration circuit comprises a circuit composed of at least two metal oxide semiconductor field effect transistors.

8. The dual-sided wireless charging device as claimed in claim 7, wherein the power integration circuit comprises one of a half-bridge power circuit and a full-bridge power circuit.

9. The dual-sided wireless charging device as claimed in claim 1, wherein the receiver circuit comprises a detection resonance circuit, a control circuit, and a rechargeable battery, the detection resonance circuit receiving the alternate-current signal transmitted by the transmitter circuit, the control circuit being connected to the detection resonance circuit, the control circuit converting the alternate-current signal received by the detection resonance circuit into electrical power and performing voltage regulation of the electrical power, the rechargeable battery being connected to the control circuit, the rechargeable battery storing the electrical power converted by the control circuit.