The document summarizes a student's presentation on a pedal-operated cell phone charger. It describes the device's components including a bicycle, alternator, wire, belt, and connector. The working principle is that pedaling the bicycle turns the alternator, which produces electricity to charge a phone through a voltage regulator. The device allows charging a phone through pedal power and has applications for bike tours or places without electricity. It has advantages like compact size and less maintenance, but limitations of lower efficiency than other chargers and issues if the alternator leaks air.

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I am the AAYUSH VOHRA
Currentily Pursing Diploma Mechanical 6th sem .
I am thankful to AISECT UNIVERSITY to give the
Platform to Chance to me the Presenting the
Presentation on the very Important
Topic-PEDAL OPERATED CELL PHONE CHARGER

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PEDAL OPERATED CELLPHONE CHARGER
• SYNOPSIS
• INTRODUCTION
• TYPES OF PARTS
• WORKING PRINCIPLE
• APPLICATIONS
• ADVANTAGES
• LIMITATIONS

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 SYNOPSIS
• Pedal operated Mobile phone charger an important role in the
material, social and cultural life of man kind.
• Imagine never having to plug your cell phone into the wall
again now you can just plug it into your cycle “Watts Maker”
cell phone charger.
• The system consists of a small generator that provides power
to your mobile phone while you take an evening ride around
the neighborhood or pedal to work.
• This model takes about 90 minutes to go from dead to fully
charged, and it produces energy as long as the wheels keep
turning.

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 INTRODUCTION
• I took up the project of building a simple pedal-powered cell
phone charger to mount on my bicycle.
• Cell phones are small in the big picture of energy
consumption, but the apparatus we built could be a very
practical concept for those on self-supported bike tours or
those living temporarily in situations without electricity.
• Just unplug your phone from the wall, and in the time that it
takes for you to rig up this gizmo your phone will be out of
juice and you'll be due for a long Ride.
• A couple visits to the local hardware store and Radio Shack
secured all the parts we needed for the job.

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 TYPES OF PARTS
• Bicycle
• Alternator
• Wire
• Belt
• Connector

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 WORKING PRINCIPLE
•When engaged, the generator wheel rolls against
the cycle tire. The motion produces electricity, and
the greater your speed, the greater the voltage
output.
•The cord from the generator leads first to the
circuit board's bridge rectifier, which converts the
AC to DC.
• In other words, the up-and-down, positive-to-
negative current becomes a steady positive
current. Then, the capacitor levels out the DC
voltage, producing a steady voltage inflow to the
voltage regulator.
• The voltage regulator is crucial, as the phone
only needs 3 to 4 volts to charge, whereas fast
pedaling can produce 30 volts or more, which is
enough to fry the average cell phone. The
regulator controls the voltage, putting a five-volt
ceiling on the power entering the phone.

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 APPLICATIONS
• Since the Pedal operated cell phone charger is more efficient it
is used for mobile charger.
• All mobile charging Applications

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 ADVANTAGES
1. This is of compact in size
2. Less Maintenance is enough
3. Quite running and smooth operation is achieved.
4. Higher efficiency
5. Effective working principle
6. Less Maintenance

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 LIMITATIONS
1. Less efficiency when compressed to other device.
2. Leakage of air affects the working of the unit.

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THANKING YOU