Packaging and Details of a Wireless Power device

  • US 20090224609A1
  • Filed: 03/09/2009
  • Published: 09/10/2009
  • Est. Priority Date: 03/10/2008
  • Status: Active Grant
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First Claim
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1. A wireless power transmitter, comprisinga magnetically resonant antenna;

  • a transmit system that creates a driving signal at a frequency that is substantially resonant with said magnetically resonant antenna;

    a current sensor, sensing an amount of current that flows through said magnetically resonant antenna and creates a current sense signal indicative thereof; and

    wherein said signal indicative of current is used by said transmit system to change said driving signal based on a characteristic of transmitting by said magnetically resonant antenna.

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