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US 2014/0232197 A1Published application
Modular inductive power transfer power supply and method of operation
AssigneeQUALCOMM Incorporated
InventorsNicholas A. Keeling, Michael Kissin, Jonathan Beaver
Life of this patent
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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.
Claims25
A wireless power transmitter, comprising:
- a conductive structure configured to generate a field;
- and
- a plurality of electrical circuits operatively connected to the conductive structure and driven by a plurality of sources to provide the conductive structure with a substantially constant current.
A method of wirelessly transmitting power, comprising:
- providing a substantially constant current in a conductive structure via a plurality of sources;
- generating a magnetic field via the conductive structure;
- and
- operatively disconnecting at least one source of the plurality of sources from the conductive structure.
1 more element
A wireless power transmitter, comprising:
- means for providing power;
- means for generating a magnetic field;
- and
- means for connecting the means for providing power to the means for generating a magnetic field, the means for connecting comprising means for tuning the transmitter to a resonant frequency, the means for connecting further comprising means for providing a substantially constant current in the means for generating the magnetic field.
1 more element
Dependencies are inferred from the claim text.