Wireless power receiver and electronic device including the same

• US 9,742,212 B2
• Filed: 05/08/2015
• Issued: 08/22/2017
• Est. Priority Date: 09/11/2014
• Status: Active Grant

• Current Assignee: Wit Co., Ltd.
• Original Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Inventors: Jeong, In Wha, Park, Jong Heum, Kim, Hugh
• Primary Examiner(s): Siek, Vuthe
• Application Number:
  US14/707,182
• Publication Number:
  US 20160079765A1
• Time in Patent Office: 837 Days
• CPC Class Codes: H02J 2207/40 adapted for charging from various sources, e.g. AC, DC or multivoltage
• CPC Class Codes: H02J 50/05 using capacitive coupling
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction

Abstract

A wireless power receiver according to an exemplary embodiment in the present disclosure may include a coil receiving power transmitted wirelessly in an inductive-coupling scheme; an electrode receiving power transmitted wirelessly in a capacitive-coupling scheme; and a rectifying unit connected to the coil and the electrode and rectifying input power to output supply power.

Claims

1. A wireless power receiver comprising:

a printed circuit board;

a coil disposed on a first surface of the printed circuit board which is disposed to face a wireless power transmitter transmitting power wirelessly, and the coil receiving power transmitted wirelessly in an inductive-coupling scheme;

an electrode disposed on a second surface of the printed circuit board, which is opposite to the first surface of the printed circuit board and receiving power transmitted wirelessly in a capacitive-coupling scheme; and

a rectifying unit connected to the coil and the electrode and rectifying input power input from at least one of the coil and the electrode to output supply power.

2. The wireless power receiver of claim 1, wherein the printed circuit board comprises a first region in which the coil and the electrode are disposed, and a second region in which the rectifying unit is disposed.

3. An electronic device comprising:

a wireless power receiver including a printed circuit board, a coil disposed on a first surface of the printed circuit board which is disposed to face a wireless power transmitter transmitting power wirelessly, and the coil receiving power transmitted wirelessly in an inductive-coupling scheme, an electrode disposed on a second surface of the printed circuit board, which is opposite to the first surface of the printed circuit board and receiving power transmitted wirelessly in a capacitive-coupling scheme and outputting supply power and a rectifying unit connected to the coil and the electrode and rectifying input power input from at least one of the coil and the electrode to output supply power; and

a load to which the supply power is input.

4. The electronic device of claim 3, wherein the printed circuit board comprises a first region in which the coil and the electrode are disposed, and a second region in which the rectifying unit is disposed.

5. The electronic device of claim 3, wherein the load is a charger charged with the supply power to output the power charged therein.

6. The electronic device of claim 3, wherein the load includes an electronic chip performing a predetermined operation when the supply power is input thereto.