Temperature Controlled Fan
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This document describes a temperature control system using a microcontroller that can operate automatically or manually using an external interrupt. The system uses PWM to vary the motor duty cycle based on temperature readings from an ADC. Simulations show how duty cycle and motor speed increase with higher temperatures. The system has applications for controlling power consumption in air conditioners and cooling computer processors or facilities. The problem statement and simulations are complete but the hardware implementation is only partially finished.
Temperature Controlled Fan
- 1. Peeyush Pashine(2011H140033H) Sri Krishna Yadav(2011H140031H) Pravesh Tamrakar(2011H140036H) J. Ganesh(2011H140032H)
- 2. Code Enabling and disabling the entire operation through INT1 external interrupt Automatic and manual operation For controlling the motor PWM concept is used i.e. varying duty cycle generation according to temperature.
- 3. Simulation lets take the output of ADC as 02H=00000010B From ttable value of temperature is 26 degree centigrade, corresponding hex code for 7 segments are,6D,5F,respectively.Offdelay=16*5+6=86,ondela y=100-86=14.. Duty cycle= 14% Now if temperature value is 48 centigrade, offdelay=10*5+2=52, on delay=100-52=48, duty cycle increased to 48%. Hence motor speed will increase.
- 7. Application In appliances power consumption can be controlled. Eg. Air conditioners In computers, it can be use to cool the processor In institutes, Firms industries etc..
- 8. Conclusion The problem statement is implemented Hardware part is halfway implemented. Through simulations and after running the code in IDE abstract is verified.
- 9. Queries?
- 10. Thank you !!!