Figure 12: Temperature sensing with NTC or PTC. Isolation with transformer driven by sinusoidal signal generator. Output amplifier is with operational amplifier. The temperature sensor R3 can be NTC ...

A NTC resistor or a thermistor is used as a sensor that has a strong temperature dependence. If the NTC temperature rises then the output voltage rises with 0.5 V per 1 0 C. Conversion factor depends ...

The circuit in Figure 1 requires only an ordinary negative-temperature-coefficient (NTC) thermistor, two common ICs, and a handful of discrete components. The circuit uses a uni T.K. Hareendran ...