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Apparatus and method for wireless charging

  • US 9,590,446 B2
  • Filed: 01/03/2014
  • Issued: 03/07/2017
  • Est. Priority Date: 05/02/2013
  • Status: Expired due to Fees
First Claim
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1. A wireless charging apparatus, comprising:

  • an antenna that receives electrical waves;

    a first charging power generator including a first switch that connects the first charging power generator to the antenna in response to a first control signal, the first charging power generator generating charging power for charging a battery using the electrical waves received by the antenna;

    a second charging power generator including a second switch that connects the second charging power generator to the antenna in response to a second control signal, the second charging power generator generating charging power for charging the battery using the electrical waves received through the antenna; and

    a controller that senses a frequency of the electrical waves received through the antenna, activates the first control signal when the sensed frequency corresponds to a first frequency band, and activates the second control signal when the sensed frequency corresponds to a second frequency band lower than the first frequency band.

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