WIRELESS POWER TRANSFER METHOD AND CIRCUIT
First Claim
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1. A power circuit for wirelessly communicating power to a receiving device comprising:
- one or more switches for coupling respective ends of different coils of a plurality of coils together to facilitate selectively connecting the plurality of coils in a series configuration, parallel configuration, or combination thereof;
a controller configured to control a conduction state of each of the one or more switches; and
first and second power terminals in electrical communication with the plurality of coils through which a power signal flows.
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Abstract
A power circuit for wirelessly communicating power to a receiving device includes one or more switches for coupling respective ends of different coils of a group of coils together to facilitate selectively connecting the coils in a series configuration, parallel configuration, or combination thereof. The circuit includes a controller configured to control a conduction state of each of the one or more switches, and power terminals in electrical communication with the coils through which a power signal flows.
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Citations
21 Claims
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1. A power circuit for wirelessly communicating power to a receiving device comprising:
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one or more switches for coupling respective ends of different coils of a plurality of coils together to facilitate selectively connecting the plurality of coils in a series configuration, parallel configuration, or combination thereof; a controller configured to control a conduction state of each of the one or more switches; and first and second power terminals in electrical communication with the plurality of coils through which a power signal flows. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 21)
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12. A method for wirelessly communicating power to a receiving device, the method comprising:
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coupling respective ends of different coils of a plurality of coils together in one of a series configuration, parallel configuration, or combination thereof to form a first configuration; determining an amount of power delivered to the receiving device; coupling the respective ends of different coils of the plurality of coils together in one of a series configuration, parallel configuration, or combination thereof to form a combination different than the first configuration based on the determined amount of power. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification