Download WIRELESS HEADPHONES USING INFRARED RAYS

WIRELESS HEADPHONES
USING INFRARED RAYS
Submitted by:
• VAMSI CHANDRA-ES12B1012
• GOKUL ARVIND-ME12B1017
• R.SHASHANK-EE12B1026
Indian Institute of Technology
Hyderabad
Principle
• This wireless communication system transmits sound or music signals
through I.R Rays.
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The intensity changes with the amplitude of the sound signal.
The variation in the intensity of I.R rays is converted into a variation in the
voltage level by using a solar panel.
• The voltage variation on the solar panel is amplified by a low-voltage audio
power amplifier and reproduced by a speaker.
Requirements:
• Capacitors
• Integrated Circuits
• Potmeter
• Resistors
• IR receiver and transmitter
WORKING OF THE MODEL
TTHE MODEL CONSISTS OF TWO CIRCUITS
TRANSMITTER CIRCUIT
RECEIVER CIRCUIT
Both the transmitter and receiver circuit are built
around IC LM386,powered by a 9V battery.
TRANSMITTER CIRCUIT
RECEIVER CIRCUIT
Applications:
• This system can be used in industrial applications.
• This system can be very useful in portable musical appliances.
• An alternative for this system is the use of Bluetooth, since it can be used
to increase the range of transmission.
• Due to transmission of data wirelessly ,it can enormously decrease the
amount of connections using wires.
Advantages:
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Simple in construction.
Easy to maintain and repair.
Comparatively the operation cost is less.
Efficient and low cost design.
Low power consumption.
Alternative for Bluetooth.
Disadvantages:
• There might be disturbance in the output during transmission via I.R due to
external factors.