Multiple Coil System

• US 20120104999A1
• Filed: 10/20/2011
• Published: 05/03/2012
• Est. Priority Date: 11/02/2010
• Status: Abandoned Application

• Current Assignee: Triune Ip, LLC (Semtech Corporation)
• Original Assignee: Triune Ip, LLC (Semtech Corporation)
• Inventors: Teggatz, Ross, Chen, Wayne, Atrash, Amer
• Application Number:
  US13/278,088
• Publication Number:
  US 20120104999A1
• Time in Patent Office: Days
• US Class Current: 320/108
• CPC Class Codes: H01F 27/2804 Printed windings
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H02J 50/005 Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H04B 5/26 using coils
• CPC Class Codes: H04B 5/72 for local intradevice communication
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

Multiple coil systems and methods are disclosed in which transmitter and receiver inductors, or coils, are coupled in a configuration for wirelessly transferring data and/or power among them. In preferred implementations, the systems and methods are used for transmitting both power and data using pairs of coupled coils. One preferred aspect of the invention is that the coils are not permanently affixed in physical proximity to one another, but can be moved and/or interchanged.

Claims

1. A system for coupling two or more coils comprising:

a first coil; and

a second coil for removably coupling with the first coil;

whereby an electromagnetic signal may be passed between the coils.

2. The system for coupling two or more coils according to claim 1 further comprising an isolation barrier interposed between the first and second coils;

3. The system for coupling two or more coils according to claim 1 further comprising ferrous material interposed between the coils to enhance coupling.

4. The system for coupling two or more coils according to claim 1 further comprising a wireless power control mechanism associated with one or more coil.

5. The system for coupling two or more coils according to claim 1 wherein at least two of the coils are interleaved.

6. The system for coupling two or more coils according to claim 1 wherein at least one coil is integrated into a leadframe.

7. The system for coupling two or more coils according to claim 1 wherein at least one coil is printed on a PCB.

8. The system for coupling two or more coils according to claim 1 wherein at least one of the coils is substantially planar.

9. The system for coupling two or more coils according to claim 1 wherein at least two of the coils are coplanar.

10. The system for coupling two or more coils according to claim 1 wherein at least one coil comprises a cylinder.

11. The system for coupling two or more coils according to claim 1 wherein at least one coil comprises a semicylinder.

12. The system for coupling two or more coils according to claim 1 wherein at least one coil comprises a cylinder segment.

13. The system for coupling two or more coils according to claim 1 wherein at least one coil comprises a toroid.

14. The system for coupling two or more coils according to claim 1 wherein at least one coil further comprises data receiving circuitry.

15. The system for coupling two or more coils according to claim 1 wherein at least one coil further comprises data transmittal circuitry.

16. The system for coupling two or more coils according to claim 1 wherein at least one coil further comprises power receiving circuitry.

17. The system for coupling two or more coils according to claim 1 wherein at least one coil further comprises power transmittal circuitry.

18. The system for coupling two or more coils according to claim 1 wherein first and second coils are deployed on a charger circuit and battery respectively.

19. A battery charger system comprising:

a first coil operably connected to a charger circuit; and

a second coil for removably coupling with the first coil, the second coil operably connected with a battery;

whereby an electromagnetic signal may be passed from the first coil to the second coil, charging the battery.

20. The system according to claim 19 further comprising a wireless power control mechanism associated with one or more coil.