Question

A patient monitoring system displays ECG, respiration and arterial blood pressure. When any one of

these inputs exceeds a threshold, one or more of three alarm lights (green, yellow, red) turn on in the

patient monitor. A low on the input is associated with stable condition, whereas a high indicates that the

threshold has been exceeded. The conditions for turning on the light are: when all inputs are stable, the

green light turns on; when any one of the inputs exceeds its threshold, the yellow light turns on; when

two or more inputs exceed thresholds, the red light should turn on.

A. Write down the truth table for the circuit.

B. Write down the equation for the output/s as summation of min terms.

C. Use K-maps to design the circuit

D. Optimize the circuit to minimum number of ICs.

Answer 1

I have written step wise solution . If you have any doubts you can post it in comments I will clarify.

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