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Wireless power transfer using one or more rotating magnets in a receiver

  • US 10,218,221 B2
  • Filed: 07/07/2015
  • Issued: 02/26/2019
  • Est. Priority Date: 07/17/2014
  • Status: Active Grant
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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