NTC and Voltage Divider
I have created a circuit on the Falstad website, and you can download the voltage-divider-thermistor.circuitjs.txt ile to import and experiment with. This setup is similar to what we covered in the voltage divider chapter of the LDR section. If you haven't gone through that section, I highly recommend completing the theory there before continuing.
This circuit includes a 10kΩ thermistor with a resistance of 10kΩ at 25°C. The input voltage \( V_{in} \) is set to 3.3V.
Themistor at 25°C
The thermistor has a resistance of 10kΩ at 25°C, resulting in an output voltage (\( V_{out} \)) of 1.65V.
Thermistor at 38°C
The thermistor's resistance decreases due to its negative temperature coefficient, altering the voltage divider's output.
Thermistor at 10°C
The thermistor's resistance increases, resulting in a higher output voltage (\( V_{out} \)).