Wireless power reception and object stimulation apparatus

Patent metadata

Field	Value
Publication number	US-11955810-B2
Application number	US-202017117446-A
Country	US
Kind code	B2
Filing date	Dec 10, 2020
Priority date	Apr 14, 2020
Publication date	Apr 9, 2024
Grant date	Apr 9, 2024

Abstract

A wireless power reception apparatus includes: a first electrode including a coil shape; a second electrode including the coil shape; an electrode capacitor connected between the first electrode and the second electrode; an electrode signal transceiver connected to the first electrode and the second electrode; a power receiver connected to the first electrode and the second electrode, separately from the electrode signal transceiver; a resonant capacitor; and first capacitor and a second capacitor configured to connect a conducting line between the first electrode and the power receiver and a conducting line between the second electrode and the power receiver, wherein the first electrode and the second electrode are wound in the same direction.

First claim

What is claimed is:

1. A wireless power reception apparatus comprising:
a first electrode including a coil shape;
a second electrode including the coil shape;
an electrode capacitor connected between the first electrode and the second electrode;
an electrode signal transceiver connected to the first electrode and the second electrode;
a power receiver connected to the first electrode and the second electrode, separately from the electrode signal transceiver;
a resonant capacitor; and
a first capacitor and a second capacitor configured to selectively connect or disconnect a conducting line between the first electrode and the power receiver and a conducting line between the second electrode and the power receiver, depending on a selected frequency,
wherein the first electrode and the second electrode are wound in a same direction and are configured to form a single coil in response to the electrode capacitor being shorted.

2. The wireless power reception apparatus of claim 1 , wherein the electrode signal transceiver is configured to apply a low-frequency signal to the first electrode and the second electrode such that the electrode capacitor and the first and second capacitors are open.

3. The wireless power reception apparatus of claim 2 , wherein the first electrode and the second electrode are configured to apply an electrode signal to an object disposed between the first electrode and the second electrode, based on the low-frequency signal.

4. The wireless power reception apparatus of claim 1 , wherein the first electrode and the second electrode are configured to receive a high-frequency signal from a wireless power transmission apparatus such that the electrode capacitor is shorted.

5. The wireless power reception apparatus of claim 4 , wherein the first electrode and the second electrode are configured to form a single inductor, and the power receiver is charged with the high-frequency signal through a resonance by the single inductor and the resonant capacitor.

6. The wireless power reception apparatus of claim 4 , wherein the first electrode and the second electrode are configured to receive the high-frequency signal from the wireless power transmission apparatus such that the first and second capacitors are shorted.

7. The wireless power reception apparatus of claim 1 , wherein either one or both of the first electrode and the second electrode has a spiral structure.

8. The wireless power reception apparatus of claim 1 , wherein either one or both of the first electrode and the second electrode has a mesh structure, and a conducting line between the mesh structure and the power receiver includes the coil shape enclosing the mesh structure.

9. The wireless power reception apparatus of claim 1 , wherein either one or both of the first electrode and the second electrode includes a spiral-mesh structure.

10. The wireless power reception apparatus of claim 1 , wherein
the first electrode and the second electrode are bracket-shaped conductors with a width, and
the first electrode and the second electrode form a circle.

11. The wireless power reception apparatus of claim 1 , further comprising:
a first inductor connected between the first electrode and the electrode signal transceiver; and
a second inductor connected between the second electrode and the electrode signal transceiver.

12. The wireless power reception apparatus of claim 1 , further comprising:
a first switch connected between the first electrode and the electrode signal transceiver;
a second switch connected between the second electrode and the electrode signal transceiver; and
a controller configured to:
control the first switch and the second switch to be open in response to the first electrode and the second electrode receiving a high-frequency signal, and
control the first switch and the second switch to be shorted in response to a low-frequency signal being applied to the first electrode and the second electrode.

13. The wireless power reception apparatus of claim 1 , wherein:
the first capacitor is connected between the first electrode and the power receiver; and
the second capacitor is connected between the second electrode and the power receiver.

14. The wireless power reception apparatus of claim 1 , further comprising:
a housing comprising the electrode signal transceiver and the power receiver, wherein the electrode capacitor is entirely disposed outside the housing.

15. The wireless power reception apparatus of claim 1 , wherein the first electrode and the second electrode are disposed on different sides of the wireless power reception apparatus, respectively.

16. The wireless power reception apparatus of claim 15 , further comprising:
a housing comprising the electrode signal transceiver and the power receiver, wherein the electrode capacitor is entirely disposed outside the housing.

17. The wireless power reception apparatus of claim 1 , further comprising:
a controller configured to control the resonant capacitor to increase a reception voltage by a high-frequency signal received from a wireless power transmission apparatus.

18. The wireless power reception apparatus of claim 1 , further comprising:
a controller configured to generate a response signal in response to a test signal received from a wireless power transmission apparatus,
wherein the wireless power transmission apparatus is configured to determine whether impedance matching is performed based on the generated response signal, and
wherein the controller is configured to receive a control signal generated based on a result of the determining by the wireless power transmission apparatus and to control the resonant capacitor based on the control signal.

19. The wireless power reception apparatus of claim 1 , wherein
whether impedance matching is performed is determined by a wireless power transmission apparatus based on a response signal generated in response to a test signal received from the wireless power transmission apparatus, and
the first electrode and the second electrode are configured to receive a resonant frequency signal selected based on a result of the determining by the wireless power transmission apparatus.

20. The wireless power reception apparatus of claim 1 , wherein the electrode signal transceiver is configured to communicate with an external communicator using a low-frequency signal.

21. The wireless power reception apparatus of claim 1 , wherein the selectively connecting to and disconnecting from the conducting line is performed in response to a signal with the selected frequency.

22. The wireless power reception apparatus of claim 1 , wherein the resonant capacitor is configured to connect the conducting line between the first electrode and the power receiver and the conducting line between the second electrode and the power receiver.

23. The wireless power reception apparatus of claim 1 , wherein the resonant capacitor includes at least one of a varactor and a cap bank, and is configured to be set with a capacitance to maximize a voltage of the first electrode or the second electrode.

24. An object stimulation apparatus comprising:
a membrane comprising a first electrode and a second electrode;
an electrode capacitor connected between the first electrode and the second electrode; and
an electrode signal transceiver selectively, based on an electrode signal with a selected frequency and upon receipt of the electrode signal, conne

Assignees

• Samsung Electronics Co Ltd

Inventors

• Lee Jaechun
• Hong Young Jun
• Kim Sang Joon

Classifications

• H02J2105/46

  Medical devices, medical implants or life supporting devices · CPC title

• H02J50/12 Primary

  of the resonant type · CPC title

• A61N1/37229

  Shape or location of the implanted or external antenna · CPC title

• A61N1/3787

  from an external energy source · CPC title

• H04B5/0037

  Electricity · mapped topic