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Temperature probe controller circuit

  • US 20020157541A1
  • Filed: 12/21/2001
  • Published: 10/31/2002
  • Est. Priority Date: 12/22/2000
  • Status: Abandoned Application
First Claim
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1. A control circuit for controlling the flow of current from the current source through a resistive element, the circuit including:

  • a microprocessor for generating control signals;

    a relay for selectively connecting a current source to the resistive element in accordance with the control signals generated by the microprocessor; and

    a solid state switch for selectively connecting the current source to the resistive element in accordance with the control signals generated by the microprocessor, the control signals being generated to coordinate the switching of the relay and triac in order to reach and/or maintain a desired temperature.

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