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Transmission-guard system and method for an inductive power supply

DC
  • US 9,083,204 B2
  • Filed: 01/10/2014
  • Issued: 07/14/2015
  • Est. Priority Date: 03/17/2008
  • Status: Active Grant
First Claim
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1. An inductive power transfer system comprising at least one inductive power outlet comprising at least one primary inductive coil wired to a power supply via a driver;

  • said primary inductive coil for forming an inductive couple having a characteristic resonant frequency with at least one secondary inductive coil wired to an electric load, said secondary inductive coil associated with an inductive power receiver wherein said driver is configured to provide a driving voltage across said primary inductive coil, said driving voltage oscillating at a non-resonant transmission frequency substantially different from said characteristic resonant frequency of said inductive couple,wherein said inductive power outlet further comprises a signal detector adapted to detect a first signal and a second signal, and said driver is configured to;

    provide less power by increasing said non-resonant transmission frequency by an incremental value when said first signal is detected by the detector, andprovide more power by decreasing said non-resonant transmission frequency by an incremental value when said second signal is detected by the detector.

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