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Wireless power transmitter with array of transmit coils

  • US 10,110,070 B2
  • Filed: 04/01/2016
  • Issued: 10/23/2018
  • Est. Priority Date: 04/01/2016
  • Status: Active Grant
First Claim
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1. A power transmitting unit, comprising:

  • a magnetic resonance-type transmit coil array comprising a plurality of coil elements, wherein each coil element is tuned to a same resonant frequency; and

    a power generating circuitry to deliver current to the transmit coil array to wirelessly power a device within an active wireless charging area of at least one of the plurality of coil elements;

    wherein each coil element comprises a plurality of zero point distances and the spacing between neighboring coil elements corresponds with the plurality of zero point distances.

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