Inductive battery charger

  • US 7,375,493 B2
  • Filed: 12/12/2003
  • Issued: 05/20/2008
  • Est. Priority Date: 12/12/2003
  • Status: Active Grant
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First Claim
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1. A computer implemented method of providing inductive energy to a battery charger assembly, the method comprising the steps of:

  • at the battery charger assembly, a coil wirelessly receiving a polling message from an inductive source by listening for the source to alternate between an energized state and a de-energized state at regular intervals, the polling message being received while the battery charger assembly is in a polling listening mode;

    transmitting a request for power to the source responsive to receiving the polling message;

    receiving inductive power via the coil from the source responsive to the request,displaying an object on a graphical user interface indicative of the step of receiving for indicating a type of power being received;

    outputting a direct current powered by the received inductive power; and

    supplying the direct current to a separate battery pack, the battery pack being detachable from the battery charger assembly.

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