Week -2

1.Doorbell

Input & Output

The pulse generator is used to create square wave pulses at regular intervals.

2.Thermistor

signal builder input:

Temperature source: 20 °C from 0 to 10 seconds, 27 °C from 10 to 30 seconds, 23 °C from 30 to 50 seconds

celsius converted to kelvin

293 kelvin from 0 to 10 sec

300 kelvin from 10 to 30 sec

296 kelvin from 30 to 50 sec

Thermistor:.

For 0 sec to 10 sec Fan is OFF condition becausee temperature is 293k which is blow the thresold 298k.

After 10 sec temperature is goes to 300k then the switch ON condition( FAN ON condition).

After 30 sec Fan will OFF because the temperature comes down to 296k which is blow the thresold 298k.