Lm35 Circuit Diagram Explanation. 2 these two transistors are used to create a bandgap voltage reference i e a constant fixed voltage reference regardless of temperature and power supply variations. Apply 5 volts to vcc pin of lm35 and ground the gnd pin.
Circuit diagram of temperature controlled switch. The following image shows the circuit diagram of a simple temperature controlled switch using lm35 temperature sensor lm358 op amp and a 5v relay module. Lm35 can be used in two circuit configurations.
2 these two transistors are used to create a bandgap voltage reference i e a constant fixed voltage reference regardless of temperature and power supply variations.
The lm35 device has an advantage over linear temperature sensors calibrated in kelvin as the user is not required to subtract a large constant voltage from the output to obtain convenient centigrade. The ic lm35 is a temperature measuring device that looks like a transistor most popular package is to 92 package. It is a very famous and inexpensive temperature sensor. Connect lm35 analog output pin to it.
