I am looking at designing a circuit that will have a metal tube wrapped in nichrome wire I want to heat this to say about 120C. I know that thnigs change when dealing with different gauges and lengths of nichrome wire.
My voltage source is going to be a 24V 400w Power supply and it will be doing other things as well.
What I need help with is building a circuit that will maintain that temp say to with in 10C and I really have no idea what components are out there that can do that. I know I can get a thermister to get the temp back to the circuit but I do not know how to translate it.
As far as I know the heat is maintained via turning the power off and on based on the current temp recieved from the thermister.
I actually thought by adding a large resistor(pot) based on some type of calculation I could maintain it at a given temp while it is turned on but I am not sure if it is that simple. I would not have to readjust except if I wanted to make it a bit hotter or cooler at design time then it gets sealed up and packaged.
Would something this simple actually work. If not what kind of circuit would I have to put in place to do this job
Thanks
My voltage source is going to be a 24V 400w Power supply and it will be doing other things as well.
What I need help with is building a circuit that will maintain that temp say to with in 10C and I really have no idea what components are out there that can do that. I know I can get a thermister to get the temp back to the circuit but I do not know how to translate it.
As far as I know the heat is maintained via turning the power off and on based on the current temp recieved from the thermister.
I actually thought by adding a large resistor(pot) based on some type of calculation I could maintain it at a given temp while it is turned on but I am not sure if it is that simple. I would not have to readjust except if I wanted to make it a bit hotter or cooler at design time then it gets sealed up and packaged.
Would something this simple actually work. If not what kind of circuit would I have to put in place to do this job
Thanks