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ALIGNMENT SYSTEM FOR WIRELESS ELECTRICAL POWER TRANSFER

  • US 20140132207A1
  • Filed: 11/15/2012
  • Published: 05/15/2014
  • Est. Priority Date: 11/15/2012
  • Status: Active Grant
First Claim
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1. A system to provide alignment between a source resonator and a capture resonator, said system comprising:

  • a source resonator configured to emit a magnetic signal selected from a group consisting of a charging signal and a beacon signal;

    a capture resonator configured to wirelessly receive the charging signal and provide electrical power based on the charging signal;

    a magnetic sensor configured to wirelessly receive the beacon signal and provide a location signal based on the beacon signal that is indicative of a relative location between the source resonator and the capture resonator; and

    a controller in communication with said magnetic sensor, said controller configured to receive the location signal and provide an alignment signal indicative of a movement required to align the source resonator and the capture resonator,wherein said source resonator is coupled to an electrical power source that provides an electric current to the source resonator, the source resonator emits the charging signal when a magnitude of the electric current exceeds a first current threshold, and the source resonator emits the beacon signal when the magnitude of the electric current is below a second current threshold.

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