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Method and apparatus for energy harvest from ambient sources

  • US 8,432,071 B2
  • Filed: 08/05/2010
  • Issued: 04/30/2013
  • Est. Priority Date: 08/05/2010
  • Status: Active Grant
First Claim
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1. An energy harvesting system, comprising:

  • a plurality of transducers, the transducers configured to generate direct current (DC) signals from a plurality of ambient energy sources, and at least one transducer of the plurality of transducers including an alternating current (AC) to DC rectifier;

    a sensor control circuit having a plurality of sensors configured to detect the DC signals from the plurality of transducers;

    a DC-to-DC converter configured to supply an output voltage; and

    a plurality of switches, each switch coupled between the DC-to-DC converter and a corresponding transducer of the plurality of transducers,wherein the sensor control circuit is configured to enable one switch and to disable the other switches of the plurality of switches based on a priority criterion.

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