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System and Method for a Variable Impedance Transmitter Path for Charging Wireless Devices

  • US 20130181517A1
  • Filed: 10/10/2012
  • Published: 07/18/2013
  • Est. Priority Date: 01/12/2012
  • Status: Active Grant
First Claim
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1. A method comprising:

  • wirelessly coupling a transmitter to a wireless device;

    determining a first power transfer value of a signal transmitted from the transmitter to the wireless device with a first transmit impedance;

    determining a second power transfer value of the signal transmitted from the transmitter to the wireless device with a second transmit impedance; and

    selecting one of the first transmit impedance and the second transmit impedance based on the first power transfer value and the second power transfer value.

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