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Two wire resistive sensor

  • US 7,433,267 B2
  • Filed: 12/13/2004
  • Issued: 10/07/2008
  • Est. Priority Date: 12/13/2004
  • Status: Expired due to Fees
First Claim
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1. A circuit having two terminals, the two terminals configured to receive an input current, the circuit comprising:

  • a sensor;

    a controller coupled to the sensor, and configured to generate a modulated signal; and

    a flyback circuit coupled to the controller to receive the modulated signal, and operable to generate a first output voltage based on the modulated signal, to shunt at least a portion of the input current, and to enable the controller to regulate the input current in proportion to the modulated signal.

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