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Systems and methods of using multiple microcontrollers for fail-safe control and enhanced feature operation of an appliance

  • US 7,069,109 B2
  • Filed: 11/09/2004
  • Issued: 06/27/2006
  • Est. Priority Date: 11/09/2004
  • Status: Active Grant
First Claim
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1. A system for controlling a kitchen cooking appliance comprising:

  • a first microcontroller executing a first program, the first microcontroller receiving a user input signal for controlling operation of the kitchen cooking appliance, the first microcontroller providing a first power control signal to vary the amount of power provided to a heating element in the kitchen cooking appliance;

    a second microcontroller executing a second program, the second microcontroller receiving the user input signal, the second microcontroller providing a control signal;

    a power generator module receiving the first power control signal from the first microcontroller and providing the power over a circuit to the heating element, the amount of the power provided to the heating element determined by the first power control signal; and

    a switching element receiving the power control signal from the second processor capable of interrupting the circuit providing the power to the heating element.

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