The document outlines the development of a remote-controlled fan regulator that utilizes infrared technology for efficient control from a distance. It describes the components involved, including a transmitter, receiver, and specific integrated circuits like IC 555 and IC 4017, emphasizing the cost-effectiveness and wide control range of the system. The design allows for smooth voltage alteration based on remote input, with a maximum operational distance of around 10 meters.

3. INTRODUCTION
WORKING
BLOCK DIAGRAM
CIRCUIT DIAGRAM
IC USED
ADVANTAGE
DISADVANTAGES
CONCLUSION

4. •Remote control simplified the control over equipment from a
distance without having to move around
•The system seeks to develop a system that is cost effective
while not under mining the need for efficiency.
•Zenith Electronics Corporation introduced the first remote
control, called “lazy bones” in 1950.
•The average person these days probably picks up a remote
control at least once or twice in an hour.

5. The operation of remote control can be divided in two parts;
a transmitter and a receiver.
The transistors within the transmitter amplify the signal and send them to the LED,
which translates the signal into infrared light.
The carrier frequency of such infrared signals is typically around 36 kHz.
The receiver consists of a sensor which detects the infrared light and
response appropriately to the received signal or command.

7. CIRCUIT DIAGRAM FOR REMOTE CONTROL FAN REGULATOR

8. IC 555
MONOSTABLE OPERATION
This circuit contain two monostable multivibrator operations

9. •CMOS Counter with ten output
terminal
•One of these ten output
terminals will be in a “HIGH” state at
any given time, with all others being
“LOW”, giving “one-of-ten” output.
IC 4017

10. •The circuit uses the whole bandwidth of remote IR,
and hence can be controlled by any kind remote.
•The range of remote IR is quite large. Thus the
regulator can be controlled across a large room.
•Even though we have used five speed levels, 10
different speed levels can be incorporated, with only
some minor changes. There is no subsequent cost
after the installation of the circuit.
•The circuit can be powered from the 230V AC line
itself.

11. •IR radiation from remotes is designed to
spread to large area. If the regulator sensor is
placed near the television/AC, then the fan
speed can be changed whenever the remote is
pressed for controlling the other device.

12. The IR remote controlled fan regulator is implemented using
IR sensor, monostable multivibrator, decade counter,
transformer, comparator, opto-isolator and TRIAC.
It is portable in size and the receiver responds only to the
infra-red signal transmitted by any modern day remote
control.
The system responds favourable and alters the voltage
smoothly when any button of modern day remote control is
pressed, irrespective of ac supply voltage frequency. The
receiver transmitter maximum distance is approximately 10m.