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WIRELESS POWER TRANSFER DEVICE AND METHOD

  • US 20170187197A1
  • Filed: 12/29/2015
  • Published: 06/29/2017
  • Est. Priority Date: 12/29/2015
  • Status: Active Grant
First Claim
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1. A wireless power transfer device comprising:

  • a first coil having a first portion, and configured to generate a magnetic field;

    a second coil having a second portion, and positioned with respect to the first coil such that the first portion of the first coil overlaps the second portion of the second coil in an overlap region;

    a power amplifier electrically coupled to one selected from a group consisting of the first coil and the second coil, the power amplifier configured to output a drive signal; and

    a flux concentrator aligned with the overlap region and configured to concentrate a magnetic flux of the magnetic field.

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