Remote and Temperature Controlled Fan

EEP 211

by:- Vivek Mangal Indra Bhushan

Umang Gupta

Main Blocks Of Circuit

• IR Remote Control

• Microcontroller

• Automatic mode-Temperature Control

• Interfacing with mains

Block diagram

IR Remote Control

Requirement

• Multichannel

• Programmable Receiving Unit

• Handy

Block Diagram For Remote

Regulator

Crystal 16 MHz (adjustable)

IR Receiver- TSOP1738

Triac Fan

Opto coupler

Temperature sensor LM-35

USB Port

PC

5V Power Supply

Microco-ntroller

Interfacing with mains

At input end.. Step down transformer is used.

Optocoupler to isolate dc.

Voltage regulator provide 5v DC.

At output end.. Opto-triac coupler converts to 230 ac mains.

Then this is fed to triac and ultimately to the fan.

This is where the regulator is replaced.

Questions…???

Thank You