Wireless powered television

  • US 9,160,203 B2
  • Filed: 10/06/2011
  • Issued: 10/13/2015
  • Est. Priority Date: 09/27/2008
  • Status: Active Grant
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First Claim
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1. A wireless power system for powering a television, the system comprising:

  • at least one device resonator comprising at least one loop of conductive material;

    a matching network coupled to the loop of conductive material and comprising at least two capacitive elements; and

    power and control circuitry coupled to the matching network at two terminals and configured to connect with a load of the television;

    wherein the matching network is configured to provide voltages of equal magnitude and opposite sign at the terminals when coupling power from the device resonator to the power and control circuitry,wherein the at least one device resonator is configured to wirelessly receive power via an oscillating magnetic field generated by a source resonator when the distance between the source resonator and the at least one device resonator is at least 2 cm,wherein the load of the television is configured to draw at least 5 Watts of power; and

    wherein an efficiency of wirelessly receiving power by the least one device resonator is at least 50%.

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