WIRELESS POWER TRANSFER

  • US 20140091756A1
  • Filed: 10/02/2013
  • Published: 04/03/2014
  • Est. Priority Date: 10/02/2012
  • Status: Abandoned Application
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First Claim
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1. A system for wireless transmission of power to a battery-operated device, the system comprising:

  • a power receiving apparatus comprising at least one receiving resonator and a housing dimensioned to engage with a battery compartment of a battery-operated device; and

    a power transmitting apparatus comprising;

    a first pair of source resonators spaced from one another, wherein each source resonator in the first pair comprises a loop of conducting material surrounding a common first axis;

    a second pair of source resonators spaced from one another, wherein each source resonator in the second pair comprises a loop of conducting material surrounding a common second axis perpendicular to the first axis;

    at least one additional source resonator comprising a loop of conducting material surrounding a common third axis perpendicular to the first and second axes; and

    a controller coupled to the first and second pairs of source resonators and to the at least one additional resonator and configured to provide non-radiative wireless power transfer from the power transmitting apparatus to the power receiving apparatus by alternately activating in sequence;

    the first pair of source resonators and the second pair of source resonators;

    the first pair of source resonators and the at least one additional source resonator; and

    the second pair of source resonators and the at least one additional source resonator.

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