Modular inductive power transfer power supply and method of operation
First Claim
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1. A wireless power transmitter, comprising:
- a conductive structure configured to generate a field;
a plurality of capacitors operatively connected to the conductive structure; and
a plurality of modules coupled to the plurality of capacitors, each module of the plurality of modules corresponds to a different capacitor of the plurality of capacitors and comprises a source, an inductor, and a transformer positioned between the source and the corresponding capacitor, wherein, for each module, the transformer is configured to couple an output of the source to the corresponding capacitor.
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Abstract
This disclosure provides systems, methods and apparatus for connecting and operating an AC source to a load. In one aspect a power supply topology is provided which may be of particular use in the area of wireless power transfer. The topology allows for multiple sources to be operatively connected to a single conductive structure configured to generate a field, maintaining overall system power while lowering the power output of each source.
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Citations
21 Claims
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1. A wireless power transmitter, comprising:
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a conductive structure configured to generate a field; a plurality of capacitors operatively connected to the conductive structure; and a plurality of modules coupled to the plurality of capacitors, each module of the plurality of modules corresponds to a different capacitor of the plurality of capacitors and comprises a source, an inductor, and a transformer positioned between the source and the corresponding capacitor, wherein, for each module, the transformer is configured to couple an output of the source to the corresponding capacitor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of wirelessly transmitting power, comprising:
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providing a current in a conductive structure connected to a plurality of capacitors via a plurality of modules, each module of the plurality of modules comprising a source, an inductor, and a transformer positioned between the source and a corresponding capacitor, wherein, for each module, the corresponding capacitor is a different capacitor of the plurality of capacitors; generating a magnetic field via the conductive structure; and for at least one module of the plurality of modules, operatively disconnecting the source from the conductive structure. - View Dependent Claims (19)
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20. A wireless power transmitter, comprising:
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multiple means for providing power; means for generating a magnetic field operatively connected to multiple means for storing charge; and multiple means for connecting the multiple providing means to the generating means via the multiple storing means, each connecting means of the multiple connecting means corresponding to a different storing means of the multiple storing means positioned between the generating means and the connecting means, each providing means of the multiple providing means to contribute to a current in the generating means, the multiple connecting means comprising means for operatively disconnecting at least one providing means of the multiple providing means or at least one connecting means of the multiple connecting means from the generating means while continuing to provide the current in the generating means. - View Dependent Claims (21)
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Specification