Efficient near-field wireless energy transfer using adiabatic system variations

  • US 9,831,682 B2
  • Filed: 08/13/2014
  • Issued: 11/28/2017
  • Est. Priority Date: 10/01/2008
  • Status: Active Grant
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First Claim
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1. A method comprising:

  • transferring energy from a first resonant object to a second resonant object using a third resonant object to mediate the energy transfer, wherein the third resonant object is capable of resonantly coupling with (i) the first resonant object, (ii) the second resonant object, or (iii) both, more strongly than the first resonant object is capable of resonantly coupling with the second resonant object; and

    maintaining a reduced level of energy accumulation in the third resonant object by varying over time a coupling rate between the third resonant object and (i) the first resonant object, (ii) the second resonant object, or (iii) both, based on a loss rate of (i) the first resonant object, (ii) the second resonant object, or (iii) both;

    wherein the reduced level of energy accumulation is reduced relative to energy accumulation that would occur in the third resonant object without the varying of the coupling rate over time.

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