Inductor system having shared material for flux cancellation
AssigneeWiTricity Corporation
InventorGuillaume Lestoquoy
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Abstract
Methods and apparatus for flux cancellation includes first and second inductors, wherein the first inductor is configured for coupling to a first energy source and the second inductor is configured for coupling to a second energy source. A layer of magnetic material is disposed between the first and second inductors, wherein the first and second inductors are configured such that, when driven with an oscillating current, magnetic flux generated by the first inductor is substantially canceled by magnetic flux generated by the second inductor in the layer of magnetic material.
Claims20
A system comprising:
- a first inductor driven by a first oscillating current generated by a first energy source;
- a second inductor driven by a second oscillating current generated by a second energy source, and
- a layer of magnetic material disposed between the first inductor and the second inductor, wherein the first and second inductors are configured such that, when each is driven with its respective oscillating current, magnetic flux generated by the first inductor is substantially canceled by magnetic flux generated by the second inductor in the layer of magnetic material.
A method comprising:
- disposing a layer of magnetic material between first and second inductors, wherein the first inductor is electrically coupled to a first energy source and the second inductor is electrically coupled to a second energy source;
- and
- driving with an oscillating current the first and second inductors such that a first magnetic flux generated by the first inductor is canceled by a second magnetic flux generated by the second inductor,
- wherein the magnetic material layer in combination with the first and second inductors determine respective inductances of first and second inductors during operation of the system.
A system comprising:
- a first inductor driven by a first oscillating current;
- a second inductor driven by a second oscillating current and substantially decoupled from the first inductor;
- and
- a layer of magnetic material disposed between the first inductor and the second inductor;
- wherein when the first and second inductors are driven with their respective oscillating current, magnetic flux generated by the first inductor is substantially canceled by magnetic flux generated by the second inductor in the layer of magnetic material.
Dependencies are inferred from the claim text.