Wireless Power Transfer Using Magnets
First Claim
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1. An apparatus for supplying power to a medical device to be implanted in a living being, comprising:
- a coil located in or near said medical device, said coil having an axis;
at least one permanent magnet located adjacent to said coil; and
a mechanism for moving said at least one permanent magnet relative to the coil to induce a current in the coil.
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Abstract
A wireless power transfer scheme is disclosed with moving permanent magnets for inducing current in conductive coils. Preferably the magnets are rotated about a line that is perpendicular or parallel to the axis of the coils to deliver substantial power at low frequencies. In one embodiment, three phase power may be so delivered. The technique may be used for powering medical implants and nanoelectronic circuits.
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Citations
21 Claims
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1. An apparatus for supplying power to a medical device to be implanted in a living being, comprising:
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a coil located in or near said medical device, said coil having an axis; at least one permanent magnet located adjacent to said coil; and a mechanism for moving said at least one permanent magnet relative to the coil to induce a current in the coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An apparatus for supplying power to a nano-electronic circuit, comprising:
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a coil located adjacent to said nano-electronic circuit, said coil having an axis; at least one permanent magnet located adjacent to said coil; and a mechanism for moving said at least one permanent magnet relative to the coil to induce a current in the coil.
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18. A method for supplying power to an electronic device, said device comprising a coil located in said device, said coil having an axis, said method comprising:
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providing at least one permanent magnet located adjacent to said coil; and moving said at least one permanent magnet relative to the coil to induce a current in the coil. - View Dependent Claims (19, 20, 21)
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Specification