Self-canceling magnetic structures for transferring power and communication signals
First Claim
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1. A structure comprising:
- a power transfer coil comprising a first turn and a second turn circular in shape, wherein;
the first turn and the second turn of the power transfer coil have a similar center position; and
a current flowing through the first turn of the power transfer coil and a current flowing through the second turn of the power transfer coil are in opposite directions; and
an auxiliary coil adjacent to the power transfer coil, wherein the auxiliary coil is circular in shape.
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Abstract
A system includes a first power transfer coil configured to be magnetically coupled to a second power transfer coil and an auxiliary coil adjacent to the first power transfer coil, wherein at least one of the first power transfer coil and the auxiliary coil comprises a first turn and a second turn circular in shape, and wherein the first turn and the second turn have a similar center position and a current flowing through the first turn and a current flowing through the second turn are in opposite directions.
30 Citations
20 Claims
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1. A structure comprising:
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a power transfer coil comprising a first turn and a second turn circular in shape, wherein; the first turn and the second turn of the power transfer coil have a similar center position; and a current flowing through the first turn of the power transfer coil and a current flowing through the second turn of the power transfer coil are in opposite directions; and an auxiliary coil adjacent to the power transfer coil, wherein the auxiliary coil is circular in shape. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system comprising:
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a first power transfer coil configured to be magnetically coupled to a second power transfer coil; and an auxiliary coil adjacent to the first power transfer coil, wherein at least one of the first power transfer coil and the auxiliary coil comprises a first turn and a second turn circular in shape, and wherein; the first turn and the second turn have a similar center position; and a current flowing through the first turn and a current flowing through the second turn are in opposite directions. - View Dependent Claims (11, 12, 13, 14, 15)
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16. An apparatus comprising:
a power transfer coil and an auxiliary coil placed adjacent to each other in a wireless power transfer system, wherein at least one of the power transfer coil and the auxiliary coil comprises a first turn and a second turn circular in shape, and wherein; the first turn and the second turn have a similar center position; a current flowing through the first turn and a current flowing through the second turn are in opposite directions; and the first turn and the second turn are formed by a continuous conductive element. - View Dependent Claims (17, 18, 19, 20)
Specification