Wireless energy transfer for wearables

  • US 9,843,217 B2
  • Filed: 12/30/2015
  • Issued: 12/12/2017
  • Est. Priority Date: 01/05/2015
  • Status: Active Grant
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First Claim
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1. A resonator to wirelessly transfer energy to a wireless power device comprising a device resonator coil having a dimension D, the resonator comprising:

  • a first plurality of conductor windings wound approximately in a first plane and having first and second conductor leads; and

    a second plurality of conductor windings wound in a second plane and having third and fourth conductor leads;

    wherein the first and third conductor leads are coupled to each other and the second and the fourth conductor leads are coupled to at least one capacitor;

    wherein the first plane and second plane are spaced apart by separation S and substantially parallel; and

    wherein the separation S between the first plane and second plane is approximately equal to or greater than the dimension D of the device resonator coil.

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