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Power transfer system and method

  • US 8,292,052 B2
  • Filed: 06/24/2010
  • Issued: 10/23/2012
  • Est. Priority Date: 06/24/2010
  • Status: Active Grant
First Claim
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1. A system, comprising:

  • a primary loop that is disposed adjacent to a location, that is coupled to a power source, and that is capable of transmitting power from the power source;

    a secondary receiving coil that is disposed on a mobile asset, that is coupled to a traction motor, and that is operable to receive power that the primary loop transmits; and

    a field-focusing element comprising a plurality of resonators arranged in an array that can focus a magnetic field from the primary loop onto the secondary receiving coil, wherein the field-focusing element has a non-linear current distribution.

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