Patent ID: 11867746
Assignee: HAMILTON SUNDSTRAND CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 3:
4. A method for detecting component failure in an integrated circuit, comprising:
determining an actual current output of an integrated circuit component in a first state;
determining an actual condition of the integrated circuit component in the first state;
comparing the actual current output to a fixed reference representing a minimum acceptable current of the component in the first state to generate a first compared result;
comparing the actual condition of the integrated circuit component to a fixed reference representing a maximum acceptable value of the condition at which the component can enter a second state to generate a second compared result;
comparing the actual condition of the integrated circuit component to a fixed reference representing a minimum acceptable value of the condition at which the component can enter the second state to generate a third compared result; and
outputting a component failed state signal based at least in part on the first, second, and third compared results, wherein the component is a heater, and wherein the first state is a heater on state, the second state is a heater off state, and the component condition includes a temperature of the component.