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US 2014/0232330 A1Published application
Wirelessly rechargeable battery and power transmitter
AssigneePowerbyProxi Limited
InventorsDaniel Robertson, Kunal Bhargava, Thushari Gomes
Life of this patent
Estimating the term…
Abstract
A wirelessly rechargeable battery is provided having coils oriented off major battery axes to facilitate good coupling with power transmitter magnetic fields. A magnetic core may house charging electronics for a compact form factor. A wireless power transmitter that produces fields to maximize coupling with receiver coils.
Claims27
A wirelessly rechargeable battery comprising:
- a. an elongate battery casing having a longitudinal axis;
- b. a rechargeable storage device;
- c. a plurality of power receiving coils disposed at an angle of between 30 to 60 degrees to the longitudinal axis;
- and
- d. a charging circuit for controlling the supply of power from the coils to the storage device.
2 more elements
3-5. (canceled)
(canceled)
17-19. (canceled)
A wirelessly rechargeable battery comprising:
- a. a battery casing;
- b. a rechargeable storage device;
- c. one or more power receiving coils mounted on a ferrite core;
- and
- d. a charging circuit for controlling the supply of power from the coils to the storage device at least partially housed within the ferrite core.
2 more elements
21-38. (canceled)
A wireless power transmitter including:
- a. a plurality of power transmission coils arranged in a planar array;
- and
- b. a driving circuit for driving the coils such that at least a first coil is driven so as to produce an alternating magnetic field of opposite polarity to that produced by a second coil.
Dependencies are inferred from the claim text.