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Wireless power transmitter, wireless power receiver and wireless charging system in home appliances

  • US 9,843,196 B2
  • Filed: 06/10/2014
  • Issued: 12/12/2017
  • Est. Priority Date: 06/11/2013
  • Status: Active Grant
First Claim
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1. A wireless power receiver comprising:

  • a first coil configured to transmit and receive a wireless signal to and from a wireless power transmitter;

    a second coil having a wire wound to receive power from the wireless power transmitter in a wireless manner; and

    a controller configured to control the transmission and reception of the wireless power signal and the reception of the wireless power,wherein the first coil and the second coil are disposed neighboring to each other,wherein the wire of the first coil has a smaller number of turns than the wire of the second coil,wherein the wire of the first coil is wound along an outer edge of the second coil, andwherein the second coil has a thickness of 1.15 mm ±

    0.3.

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