TEMPRATURE CONTROLLED FAN (Embedded Project for Electronics / Electrical Student)

A simple project using microcontroller AT89S51 to control the speed of 12V fan according to the surrounding temperature. In this project we use the concept of PWM (pulse width modulation) to increase or decrease the speed of fan. We also interface 2*16 characters LCD which shows the outside temperature through the temperature sensor. Followings are the details of the project.

Pulse-width modulation (PWM), OR pulse-duration modulation (PDM), is a commonly used technique for controlling power to inertial electrical devices, made practical by modern electronic power switches.

The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast pace. The longer the switch is on compared to the off periods, the higher the power supplied to the load is

Working criteria

The temperature controlled fan circuit will automatically control the speed of fan according to the temperature. A temperature sensor is used to sense the temperature. The speed of fan increases with the increase in temperature and vice versa and the temperature sensed by temperature sensor on the LCD. We program the micro controller to operate the fan above 25c

 

Project Duration: 15 Days

Timings:

10.00am - 11.00am (Sunday) ,

11.00am - 12.00 pm (Sunday)

Project Fees: 2400

Project Cost:1200

Training Charge:1200

For more info do visit our Premises at HH/17, Civiltownship, Bypass Road, Near ABMS Hospital. or Call at 0661-6050016