Wireless power transfer using one or more rotating magnets in a receiver
First Claim
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1. A system, comprising:
- a transmitter that generates a dynamic magnetic field; and
a receiver comprising a magnet, a magnet casing, and at least one coil wrapped around the magnet casing, wherein the magnet is configured to rotate 360 degrees around its axis within the magnet casing without need for a physical axle in response to the dynamic magnetic field, wherein the rotating magnet produces a time-varying magnetic flux that induces a voltage across the at least one coil.
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Abstract
The present disclosure is directed towards wireless power transfer using one or more rotating magnets in a receiver. An exemplary embodiment provides for a system comprising a transmitter that generates a dynamic magnetic field and a receiver comprising a magnet and a coil. In operation, the magnet rotates in response to the dynamic magnetic field and induces a voltage across the coil.
15 Citations
33 Claims
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1. A system, comprising:
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a transmitter that generates a dynamic magnetic field; and a receiver comprising a magnet, a magnet casing, and at least one coil wrapped around the magnet casing, wherein the magnet is configured to rotate 360 degrees around its axis within the magnet casing without need for a physical axle in response to the dynamic magnetic field, wherein the rotating magnet produces a time-varying magnetic flux that induces a voltage across the at least one coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 26, 27, 28, 29)
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18. A method, comprising:
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positioning a receiver in a dynamic magnetic field that is generated by a transmitter, wherein the receiver comprises a magnet, a magnet casing, and a coil wrapped around the magnet casing; rotating the magnet 360 degrees around its axis within the magnet casing without need for a physical axle responsive to the dynamic magnetic field; and generating a voltage across the coil in the receiver in response to the rotating magnet. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 30, 31, 32, 33)
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Specification