Wireless energy transfer using variable size resonators and system monitoring
AssigneeWiTricity Corporation
InventorsAndre B. Kurs, Aristeidis Karalis, Morris P. Kesler, Andrew J. Campanella, Katherine L. Hall, Konrad J. Kulikowski, Marin Soljacic
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Abstract
A variable shape magnetic resonator includes an array of at least two resonators each being of a substantially different shapes and at least one power and control circuit configured to selectively connect to and energize at least one of the resonators.
Claims37
A wireless power transfer system with at least one adjustable magnetic resonator comprising:
- a first magnetic resonator with a plurality of differently sized inductive elements;
- at least one power and control circuit configured to selectively connect to at least one of the plurality of differently sized inductive elements;
- one or more additional magnetic resonators separated from the first magnetic resonator;
- and
- measurement circuitry to measure at least one parameter of a wireless power transfer between the first magnetic resonator and the one or more additional magnetic resonators, wherein one or more connections between the plurality of differently sized inductive elements and the at least one power and control circuit are configured to change an effective size of the first magnetic resonator according to the at least one parameter measured by the measurement circuitry.
A wireless power transfer system with an adjustable effective size magnetic resonator comprising:
- a source with an adjustable effective size resonator including a plurality of differently sized source magnetic resonators and at least one power and control circuit configured to selectively connect to at least one of the plurality of differently sized source magnetic resonators;
- a device separated from the source, the device having at least one device magnetic resonator;
- and
- measurement circuitry to measure at least one parameter of a wireless power transfer between the source and the device, wherein one or more connections between the plurality of differently sized source magnetic resonators and the at least one power control circuit are configured to change an effective size of the adjustable effective size resonator according to the at least one parameter measured by the measurement circuitry.
An adjustable effective size resonator for wireless power transfer comprising:
- a magnetic resonator including a plurality of differently sized inductive elements;
- at least one power and control circuit configured to selectively connect to and energize at least one of the plurality of differently sized inductive elements;
- and
- measurement circuitry to measure at least one electrical parameter of the magnetic resonator, wherein one or more connections between the plurality of differently sized inductive elements and the at least one power and control circuit are configured according to the at least one electrical parameter.
Dependencies are inferred from the claim text.