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Wireless power transfer system

  • US 10,250,072 B2
  • Filed: 08/26/2013
  • Issued: 04/02/2019
  • Est. Priority Date: 08/26/2013
  • Status: Active Grant
First Claim
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1. A wireless power transmitter comprising:

  • at least two loops;

    separate drivers, each driving a respective one of the loops and providing a respective alternating current to the respective loop, thereby to transmit wireless power for receipt by at least one wireless power receiver; and

    a controller for coordinated current control of the drivers such that a magnetic field vector is generated by the respective alternating currents and is controllable to point in one or more of any direction in two-dimensional or three-dimensional space thereby transmitting wireless power in one or more predetermined directions in two-dimensional or three-dimensional space.

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