Thermistor?

Question

I need to make an equivalant circuit for a given circuit.

but this circuit has thermistors and resistors in it.

is there a circuit element that takes the place of a thermistor?

I don't think there is, at least I can't find one

Answer 1

A thermistor is a heat sensitive component that changes its resistance with temperature.

Therefore you can substitute a fixed resistance value for a particular temperature for the given thermistor.

example  2.2k @ 25C

If you replace the thermistor with a 2.2K resistor the simulation will only be valid at 25 C

edit:

if your trying to make a  working circuit without a thermistor

you can use a thermo couple or a diode temp sensor.

Answer 2

Thermistor is a thermally variable resistor.  Some increase in resistance with an increase in temp and some decrease in resistance.  It's going to behave like a rheostat or potentiometer.  I don't know what you're trying to solve for - assuming some desired current value at a given temp?  Or how much the circuit parameter will change over a given temperature range.  Anyhow, that's how I would approach it.

Answer 3

a thermistor is a resistor with a resistance that varies a lot with temperature.

You could to something similar with an op amp and a temperature sensor. It would take some thought and some work.

But why would you?

.