Heat Sensor Circuit And Working Operation

The light sensor circuit is an electronic circuit designed using light sensor ldr darlington pair relay diode and resistors which are connected as shown in the light sensor circuit diagram.

Heat sensor circuit and working operation.

The usage of the heat sensor circuit is inside your pc or in your kitchen. First is the positively controlled type of circuit. A simple heat detector circuit is shown in the figure that can be used as a heat sensor. A 230v ac supply is provided to the load in this case the load is represented with a lamp.

If the o 2 sensor heater circuit s negative wire goes directly to ground look for a short to power problem. Working of the circuit is simple when there is heat or increase in temperature to the level where it crosses the threshold set by pot then the collector current increase and led starts illuminating slowly. Heat sensor circuit and working operation. Light sensor circuit working operation.

The principle of operation of heat detector circuit. The o 2 sensor s heater circuit is controlled in one of two ways. Remove the relay and retest the circuit. When the set value of the temperature is high then it is indicated with the help of a glowing led.

You also note that before start testing the circuit first set the variable resistor. We can also use buzzer in place to led.