List the state table Drive the state equations Draw logic diagram Draw state diagram
question:
A sequential circuit is to be designed having
▪ Two JK flip-flops A and B
▪ Two inputs: Temperature and Humidity
▪ Two outputs: Chiller and Alarm
The inputs have following impact on the state of the circuit:
There is no change in state if humidity of the system is low regardless of the value of temperature.
State transition occurs from 00 to 11, to 10, to 01 and back to 00 if both the temperature AND the
humidity goes high.
State transition occurs from 00 to 10, to 11, to 01 and back to 00 when the temperature is low AND
humidity is high
Moreover, the alarm should trigger whenever temperature is high OR there is no change in state. The
chiller should turn ON if:
▪ Temperature is high OR
▪ Humidity is high.
In view of the above-mentioned logic:
- List the state table
- Drive the state equations
- Draw logic diagram
- Draw state diagram
SUBJECT:DIGITAL LOGIC DESIGN
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