Automatic Temperature Controlled Fan

Schematic of the temperature controlled fan circuit.

Automatic temperature controlled fan.

When connected to a small electrical control box and a temperature probe the fan moderates oxygen flow to match the temperature you set. Iliving 18 wall mounted exhaust fan automatic shutter variable speed vent fan for home attic shed or garage ventilation 1736 cfm 2600 sqf coverage area 4 6 out of 5 stars 240 130 69 130. Ad590 is a temperature transducer change temperature into corresponding voltage. It is accomplished by the data communications between arduino lcd dht11 sensor module and dc fan that is controlled by using pwm.

Working principle of automatic fan controller this is simply a fan that is automatically on and off based on the temperature set by the user. This temperature controlled fan circuit is highly efficient as it uses thyristors for power control. You can seamlessly use the device to monitor three temperatures simultaneously. Automatic temperature controlled fan project using arduino in this arduino based project we are going to control dc fan speed according to the room temperature and show these parameter changes on a 16x2 lcd display.

We call it user temperature. Alternatively the same circuit can be used for automatic temperature controlled ac power control. Temperature controlled dc fan using thermistor automation is good so long as you know exactly where to put the machine in this tutorial we are making a temperature controlled dc fan using thermistor as it starts above the preset level of temperature and stops when the temperature return to normal condition. The output of transducer is given to pin 2 of ic 2 lm324.

This is perhaps the simplest implementation of a temperature controlled fan. There are some input switches by that user can set the temperature. Here is a circuit through which the speed of a fan can be linearly controlled automatically depending on the room temperature. Temperature controller help control this flow by installing a fan on your intake damper which is then hooked up to its central control system.

It requires only two transistors a few resistors thermistor and small 12v fan. Circuit description the circuit of automatic temperature controlled fan is build around temperature transducer ad590 followed by operational amplifier lm324. Based on the temperature probe s reading the fan will tweak the intake of oxygen to help maintain your target temperature.