Jerry In Maine
New Member
I'd like to compare two temps using an op amp and two thermistors.
When temp 'A' is higher than 'B' I'd like to turn on a fan, which will run until temps at 'A' & 'B' are equal.
I've learned enough to know that some feededback is needed to establish hysterisis in order to keep the circuit from "chattering", and I'd like to make this adjustable.
Curious if someone could help me out with this aspect of the circuit.
Thanks
When temp 'A' is higher than 'B' I'd like to turn on a fan, which will run until temps at 'A' & 'B' are equal.
I've learned enough to know that some feededback is needed to establish hysterisis in order to keep the circuit from "chattering", and I'd like to make this adjustable.
Curious if someone could help me out with this aspect of the circuit.
Thanks