Wireless power transmittal
Wireless power transmittal apparatus and systems are disclosed in which transmitter and receiver inductors, or coils, are coupled in configurations for wirelessly transferring power and/or data among them. In preferred implementations, a plurality of non-coplanar primary side coils are provided in power transmittal apparatus for transmitting power, or power and data.
1. An apparatus comprising:
a first planar primary coil disposed on a structure in a first plane;
a second planar primary coil disposed on the structure in a second plane that is different from the first plane; and
driver circuitry operably coupled to the first primary coil and the second primary coil and configured to selectively activate one or both of the first primary coil and the second primary coil as a function of a location of a secondary coil external to the structure and to transmit power or data as a function of the selection.
2. The apparatus of claim 1 wherein the driver circuitry is configured to provide a power signal from the first primary coil and a data signal from the second primary coil to the secondary coil as a function of a location of the secondary coil.
3. The apparatus of claim 1 wherein the first primary coil and the second primary coil are connected in series and the secondary coil is disposed in a plane parallel to the first primary coil.
4. The apparatus of claim 1 wherein the first primary coil and the second primary coil are electrically interlaced and the secondary coil is disposed in a plane parallel to the second primary coil.
5. The apparatus of claim 1 further comprising a third planar primary coil disposed in a third plane that is different from the first plane and the second plane and the driver circuitry is configured to select a first combination of primary coils to transmit power and a second configuration of primary coils to transmit data and the secondary coil is disposed in a plane parallel to the third planar primary coil.
6. The apparatus of claim 1 further comprising a third planar primary coil that is disposed in two or more planes and the secondary coil is disposed in a plane parallel to the first primary coil.
7. The apparatus of claim 1 wherein the first primary coil and the second primary coil are configured to allow the secondary coil to be received between them.
8. The apparatus of claim 1 wherein the first primary coil and the second primary coil are disposed on a periphery of a container and the secondary coil is disposed in a plane parallel to the first primary coil and perpendicular to the second primary coil.
9. The apparatus of claim 1 wherein the first primary coil and the second primary coil and the driver circuitry are configured to transmit data to the secondary coil and the secondary coil is disposed in a plane parallel to the first primary coil and the second primary coil.
10. The apparatus of claim 1 wherein the first primary coil and the second primary coil and the driver circuitry are configured to receive battery data and power from the secondary coil.
11. The apparatus of claim 1 wherein the first primary coil and the second primary coil and the driver circuitry are configured to transceive data to and from the secondary coil.
12. The apparatus of claim 1 wherein the first primary coil and the second primary coil are deployed on a plurality of surfaces of a container.
13. The apparatus of claim 1 wherein one or more of the first primary coil and the second primary coil are moveable.
14. A system for wireless power transmittal in a coupled inductor system, comprising:
a first primary coil disposed on a first structure in a first plane;
a second primary coil disposed on a second structure in a second plane;
first driver circuitry operably coupled to the first primary coil and second driver circuitry operably coupled to the second primary coil and configured to selectively cause a power signal or a data signal to be transmitted from one or both of the first primary coil and the second primary coil;
a secondary side coil external to the first structure and the second structure; and
wherein the secondary side coil is configured to receive the power signal from the first primary coil and the second primary coil.
15. The system of claim 14 wherein the first primary coil and the second primary coil are connected in series.
16. The system of claim 14 wherein the first primary coil and the second primary coil are electrically interlaced.
17. The system of claim 14 further comprising third primary coil disposed in a third plane.
18. The system of claim 14 further comprising a third primary coil disposed in a plurality of planes.
19. The system of claim 14 wherein the first primary coil and the second primary coil are arranged in at least two planes such that the secondary coil can be received between them.
20. The system of claim 14 wherein the first primary coil and the second primary coil are arranged on a periphery of a container.