291 Project 1 Part B Motor

Turning on motor (replaced by LED in this circuit since there's no motor in Multisim) if temperature goes above 40 Degrees Celsius (<5325 Ohms NTC thermistor) Using: -Part A circuit -Comparator -Voltage divider The voltage divider in the bottom left gives a constant voltage of around 1.3587 (which is the same voltage as Vout at 40 Degrees Celsius or when NTC thermistor is at 5325 Ohms) The comparator then compares the Vout from LM317 and Vref from the voltage divider Note: I had to make Part B in 2 separate circuits because Multisim Free Version only allows for 25 components maximum. See 291 Project 1 Part B LED