RESONATORS FOR WIRELESS POWER TRANSFER SYSTEMS
First Claim
1. A transmitter for wireless power transfer, comprising:
- a first coil comprising at least one loop extending in a first plane, wherein the first coil encloses a first area in the first plane;
a second coil comprising at least one loop extending in the first plane, wherein the second coil encloses a second area in the first plane adjacent to the first area; and
a controller configured to drive the first and second coils with electrical currents during operation of the transmitter,wherein the controller is configured so that during operation of the transmitter;
in a first mode of operation, the controller drives the first and second coils to generate a magnetic field having a dipole moment that is parallel to the first plane to wirelessly transmit power to first and second receivers; and
in a second mode of operation, the controller drives at least one of the first and second coils to generate a magnetic field having a dipole moment that is orthogonal to the first plane to wirelessly transmit power to a third receiver.
1 Assignment
0 Petitions
Accused Products
Abstract
The disclosure features transmitters for wireless power transfer that include first and second coils each having at least one loop extending in a first plane and a controller configured to drive the first and second coils with electrical currents during operation of the transmitter, where the controller is configured so that during operation of the transmitter: in a first mode of operation, the controller drives the first and second coils to generate a magnetic field having a dipole moment that is parallel to the first plane to wirelessly transmit power to first and second receivers; and in a second mode of operation, the controller drives at least one of the first and second coils to generate a magnetic field having a dipole moment that is orthogonal to the first plane to wirelessly transmit power to a third receiver.
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Citations
23 Claims
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1. A transmitter for wireless power transfer, comprising:
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a first coil comprising at least one loop extending in a first plane, wherein the first coil encloses a first area in the first plane; a second coil comprising at least one loop extending in the first plane, wherein the second coil encloses a second area in the first plane adjacent to the first area; and a controller configured to drive the first and second coils with electrical currents during operation of the transmitter, wherein the controller is configured so that during operation of the transmitter; in a first mode of operation, the controller drives the first and second coils to generate a magnetic field having a dipole moment that is parallel to the first plane to wirelessly transmit power to first and second receivers; and in a second mode of operation, the controller drives at least one of the first and second coils to generate a magnetic field having a dipole moment that is orthogonal to the first plane to wirelessly transmit power to a third receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification