TUNABLE WIRELESS ENERGY TRANSFER FOR CLOTHING APPLICATIONS

• US 20120228954A1
• Filed: 11/08/2011
• Published: 09/13/2012
• Est. Priority Date: 09/27/2008
• Status: Abandoned Application

• Current Assignee: WiTricity Corporation
• Original Assignee: WiTricity Corporation
• Inventors: Kesler, Morris P., Kurs, Andre B., Karalis, Aristeidis, Soljacic, Marin, Hall, Katherine L.
• Application Number:
  US13/292,048
• Publication Number:
  US 20120228954A1
• Time in Patent Office: Days
• US Class Current: 307/104
• CPC Class Codes: H03H 7/40 Automatic matching of load impedance to source impedance

Abstract

A mobile wireless receiver for use with a first electromagnetic resonator coupled to a power supply includes, a load, a second electromagnetic resonator configured to be coupled to the load and moveable relative to the first electromagnetic resonator, wherein the second electromagnetic resonator is configured to be wirelessly coupled to the first electromagnetic resonator to provide resonant, non-radiative wireless power to the second electromagnetic resonator from the first electromagnetic resonator, wherein the second electromagnetic resonator is configured to be tunable during system operation so as to at least one of tune the power provided to the second electromagnetic resonator and tune the power delivered to the load, and wherein the first electromagnetic resonator is disposed in an item of clothing.

Claims

1. A mobile wireless receiver for use with a first electromagnetic resonator coupled to a power supply, first electromagnetic resonator having a mode with a resonant frequency ω

₁, an intrinsic loss rate Γ

₁, and a first Q-factor Q₁=ω

₁/2Γ

₁, the mobile wireless receiver comprising;

a load;

a second electromagnetic resonator configured to be coupled to the load and moveable relative to the first electromagnetic resonator, the second electromagnetic resonator having a mode with a resonant frequency ω

₂, an intrinsic loss rate Γ

₂, and a second Q-factor Q₂=ω

₂/2Γ

₂;

wherein the second electromagnetic resonator is configured to be wirelessly coupled to the first electromagnetic resonator to provide resonant, non-radiative wireless power to the second electromagnetic resonator from the first electromagnetic resonator;

wherein the second electromagnetic resonator is configured to be tunable during system operation so as to at least one of tune the power provided to the second electromagnetic resonator and tune the power delivered to the load; and

wherein the first electromagnetic resonator is disposed in an item of clothing.

2. The wireless receiver of claim 1, wherein the item of clothing is a jacket.

3. The wireless receiver of claim 1, wherein the item of clothing is headwear.

4. The wireless receiver of claim 1, wherein the item of clothing is military clothing.

5. The wireless receiver of claim 1, wherein the item of clothing is part of a uniform.

6. The wireless receiver of claim 1, wherein the item of clothing is sportswear.

7. A power source for wirelessly providing power to a mobile wireless receiver, the power source comprising:

a power supply; and

a first electromagnetic resonator coupled to the power supply and having a mode with a resonant frequency ω

₁, an intrinsic loss rate Γ

₁, and a first Q-factor Q₁=ω

₁/2Γ

₁,

wherein the first electromagnetic resonator is disposed in an item of clothing and configured to be wirelessly coupled to a second electromagnetic resonator to provide non-radiative wireless power to the second electromagnetic resonator, the second electromagnetic resonator having a mode with a resonant frequency ω

₂, an intrinsic loss rate Γ

₂, and a second Q-factor Q₂=ω

₂/2Γ

₂,

wherein the first electromagnetic resonator is configured to be tunable during system operation so as to tune the power delivered to the second electromagnetic resonator for use by the load.

8. The power source of claim 7, wherein the item of clothing is a jacket.

9. The power source of claim 7, wherein the item of clothing is headwear.

10. The power source of claim 7, wherein the item of clothing is military clothing.

11. The power source of claim 7, wherein the item of clothing is part of a uniform.

12. The power source of claim 7, wherein the item of clothing is sportswear.

13. A mobile wireless power system, comprising:

a first electromagnetic resonator disposed in an item of clothing and coupled to a power supply, the first electromagnetic resonator having a mode with a resonant frequency ω

₁, an intrinsic loss rate Γ

₁, and a first Q-factor Q₁=ω

₁/2Γ

₁; and

a second electromagnetic resonator coupled to a load, the second electromagnetic resonator having a mode with a resonant frequency ω

₂, an intrinsic loss rate Γ

₂, and a second Q-factor Q₂=ω

₂/2Γ

₂;

wherein at least one of the first electromagnetic resonator and the second electromagnetic resonator is configured to be tunable during system operation so as to at least one of tune the power provided to the second electromagnetic resonator and tune the power delivered to the load.

14. The wireless power system of claim 13, wherein the item of clothing is a jacket.

15. The wireless power system of claim 13, wherein the item of clothing is headwear.

16. The wireless power system of claim 13, wherein the item of clothing is military clothing.

17. The wireless power system of claim 13, wherein the item of clothing is part of a uniform.

18. The wireless power system of claim 13, wherein the item of clothing is sportswear.