Two-Wire Temperature Sensor Using LM35 IC

This is a design circuit for temperature sensor circuit. This is the figure of the circuit;

The function of LM35 temperature sensor is a produces an output voltage that is directly proportional to the measured temperature in degrees Celsius, and it enables temperatures below zero to be measured. This Circuit is a temperature-dependent current source, since it uses the variation of the quiescent current with changes in temperature. Component: LM35 IC, Resistor, Capacitor. [extremecircuits.net]

LM336 Temperature Measurement Circuit

This is a design circuit that used for Fahrenheit measurements. Here’s the figure of the circuit;

In this case the freezing point is adjusted at 320F. At 2120F, P2 is adjusted to obtain 0.9V at output. Component: LM336 IC, Thermistor, Resistor. [electroschematics.com]

LM134-LM10 Thermometer/Temperature Sensor Circuit

This is a design circuit of the thermometer/temperature sensor circuit. This circuit is using LM10 or LM134. This is the figure of the circuit;

The ideal meter for this circuit is a 0-200uA digital ampere meter, which can show both positive and negative polarity. This will make the circuit suitable for indicating temperatures below 0°C.

AD590 IC For Celsius To Digital Thermometer Circuit

This is a design of Celsius To Digital Thermometer Circuit Diagram. Here’s the figure of the circuit;

This circuit based on the AD8541 IC. Features: designed by Elana Lian and Chau Tran from Analog Device, low-cost AD590 temperature sensor; trimming potentiometer; and an ADC, proportional outputs current. Component: IC, Resistor. [diagramwiring.net]

7BL05 IC For Digital Electronic Thermometer Circuit

This is a circuit for digital electronic thermometer circuit diagram. Here’s the figure of the circuit;

Features: 1N4148 diode as the temperature sensor, -2 mV / 0C temperature coefficient, digital multi meter for measure temperature values from -9.990C up to +99.90C, digital voltmeter, diode senses. Component: 7BL05 IC, Capacitor, Resistor, Diode. [electroschematics.com]

Heat Sensor Circuit Based On LM741

This is a design circuit of the Heat Sensor Circuit Diagram. This circuit based on the LM741 IC. This is the figure of the circuit;

 

Features: temperature is almost simple sensor data subsequently amplified by Op-Amp 741, NTC thermistor as a sensor, automatically fan, thermal sensor. Component: IC, Resistor, Transistor, Relay, Diode, Transformer.