Wireless power system with associated impedance matching network

  • US 9,780,605 B2
  • Filed: 07/31/2015
  • Issued: 10/03/2017
  • 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 device, the system comprising:

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

    a matching network coupled with the at least one loop of conductive material, wherein the device resonator and the matching network comprise at least two capacitive elements; and

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

    wherein the matching network is configured to provide voltages of equal magnitude and opposite sign at the terminals when coupling power from the at least one device resonator to the power and control circuitry;

    wherein the at least one device resonator is configured to wirelessly receive power from a source resonator via an oscillating magnetic field generated by the source resonator.

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