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WIRELESSLY POWERED DEVICES

  • US 20140145513A1
  • Filed: 11/25/2013
  • Published: 05/29/2014
  • Est. Priority Date: 11/26/2012
  • Status: Active Grant
First Claim
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1. A circuit for delivering power to a load from a wireless power supply, comprising:

  • an inductor coil for placing in the electromagnetic field of an inductor coil of a supply;

    a switchable capacitor bank with capacitors switchable at least between a series and a parallel configuration;

    a voltage detecting device for measuring the voltage or detecting predetermined voltages across the capacitor bank;

    a switch controller for controlling the capacitor bank switching in dependence on the measured or detected voltages; and

    a voltage regulator for supplying the load with a constant voltage power supply derived from the capacitor bank output.

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