Tunable wireless power architectures

  • US 9,787,141 B2
  • Filed: 05/31/2016
  • Issued: 10/10/2017
  • Est. Priority Date: 08/04/2011
  • Status: Active Grant
  • ×
    • Pin Icon | RPX Insight
    • Pin
First Claim
Patent Images

1. A wireless energy source, comprising:

  • a source resonator;

    a power supply;

    an amplifier connected to the power supply and to the source resonator and comprising a plurality of switching elements; and

    a controller connected to the amplifier,wherein during operation of the source;

    the power supply drives the source resonator through the amplifier with an oscillating voltage signal;

    the controller is configured to adjust a duty cycle of the switching elements so that zero voltage switching is substantially maintained; and

    the controller is configured to adjust an output power level of the oscillating voltage signal driving the source resonator in response to a change in a power demand by a load receiving power wirelessly from the source resonator by adjusting a bus voltage of the amplifier.

View all claims
  • 1 Assignment