Segmented wireless power transfer
AssigneeThe Regents of the University of Michigan
InventorsAl-Thaddeus Avestruz, Xin Zan
Life of this patent
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Abstract
A device for wireless power transfer includes a segmented coil comprising a plurality of coil segments, each adjacent pair of coil segments of the plurality of coil segments being separated from one another by a respective passive element, and a plurality of constituent converters coupled to the segmented coil, each constituent converter of the plurality of constituent converters being coupled to a respective coil segment of the plurality of coil segments to drive the respective coil segment.
Claims28
A device for wireless power transfer, the device comprising:
- a segmented coil comprising a plurality of coil segments, each adjacent pair of coil segments of the plurality of coil segments being separated from one another by a respective passive element;
- and
- a plurality of constituent converters coupled to the segmented coil, each constituent converter of the plurality of constituent converters being coupled to a respective coil segment of the plurality of coil segments to drive the respective coil segment.
A system for wireless power transfer, the system comprising:
- a transmitter device;
- and
- a receiver device;
- wherein the transmitter device, the receiver device, or both the transmitter device and the receiver device comprises:
- a segmented coil comprising a plurality of coil segments, each adjacent pair of coil segments of the plurality of coil segments being separated from one another by a respective capacitance;
- and
- a plurality of constituent converters coupled to the segmented coil, each constituent converter of the plurality of constituent converters being coupled to a respective coil segment of the plurality of coil segments to drive the respective coil segment.
A transmitter for wireless power transfer, the transmitter comprising:
- a segmented coil comprising a plurality of coil segments, each adjacent pair of coil segments of the plurality of coil segments being separated from one another by a respective capacitance;
- and
- a plurality of constituent converters coupled to the segmented coil, each constituent converter of the plurality of constituent converters being coupled to a respective coil segment of the plurality of coil segments to drive the respective coil segment;
- wherein:
- each constituent converter of the plurality of converters comprises a pair of switches and a plurality of passive components coupling the pair of switches to the coil segment.
A receiver for wireless power transfer, the receiver comprising:
- a segmented coil comprising a plurality of coil segments, each adjacent pair of coil segments of the plurality of coil segments being separated from one another by a respective capacitance;
- and
- a plurality of constituent converters coupled to the segmented coil, each constituent converter of the plurality of constituent converters being coupled to a respective coil segment of the plurality of coil segments to drive the respective coil segment;
- wherein:
- each constituent converter of the plurality of converters comprises a pair of switches and a plurality of passive components coupling the pair of switches to the coil segment.
Dependencies are inferred from the claim text.