Wireless energy transfer with feedback control for lighting applications

  • US 8,552,592 B2
  • Filed: 02/02/2010
  • Issued: 10/08/2013
  • Est. Priority Date: 09/27/2008
  • Status: Active Grant
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First Claim
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1. A wireless lighting power transfer method comprising:

  • providing a source having a source resonator that includes a high-Q source magnetic resonator coupled to a power source;

    providing a device having a device resonator that includes a high-Q device magnetic resonator, distal from the source resonator, the device including a light emitting part electrically coupled to the device resonator;

    providing a signaling capability between the source and the device;

    signaling a state of the device to the source using the signaling capability; and

    energizing the source to generate an oscillating magnetic field according to the state of the device.

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