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Charging method of multi-node wireless charging system using magnetic field communication

  • US 20120169293A1
  • Filed: 11/30/2011
  • Published: 07/05/2012
  • Est. Priority Date: 12/30/2010
  • Status: Active Grant
First Claim
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1. A multi-node wireless charging method using magnetic field communication for enabling a wireless power transmission apparatus to charge wireless charging devices using magnetic field communication in a multi-node wireless power transmission system including the wireless power transmission apparatus and the plurality of wireless charging devices spaced apart from the wireless power transmission apparatus, the method comprising:

  • transmitting an association request frame;

    receiving an association response frame from the wireless charging devices;

    transmitting a charging requirement request frame;

    receiving a charging requirement response frame from the wireless charging devices;

    transmitting a charging preparation request frame; and

    transmitting power during a receiving period of the charging preparation response frame for the charging preparation request frame.

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