Heat Sensor

  
Inside:
Repository
This simple heat sensor circuit could senses heat from various electronics device like computer, amplifier etc. and generate warning alarm. It could senses heat from environment also, but here I mention electronics device  because it is being using mostly in electronic device to protect them from overheat. As it is a heat sensor circuit, here a
Heat Sensor - schematic

thermistor is used as a heat sensor. It is a thermal measurement device and has a variety of usages including temperature sensor/ heat sensor. The thermistor used in this circuit is a NTC (Negative Temperature Coefficient) type thermistor. When temperature increases, its resistance goes decrease. Therefore, NTC thermistor`s resistances are inverse of temperature. BC548: BC548 is a TO-92 type NPN transistor, as its alternative you can use 2N2222, BC238, BC548, BC168, BC183 etc. they all have almost same characteristic.



Leave Comment

characters left:

New Circuits

.