This document describes a solar mobile charger. It introduces the components of the charger including solar panels, regulators, and circuits. The document explains that solar panels convert sunlight into electrical energy using the photovoltaic effect. Regulators ensure the voltage delivered is at safe levels for charging devices. The working principle is that photons from sunlight are absorbed by solar cells and their energy is transferred to electrons. The circuit diagram and applications of solar mobile chargers are also presented. In conclusion, solar chargers have advantages like using renewable energy and reducing electric bills but have slower charging times than main chargers.

1. SOLAR MOBILE CHARGER
• KRUNAL WARGE
• NAGESH DANDIN
• AMAN PRASHAD
• BIRENDRA YADAV

2. CONTENTS
 INTRODUCTION
 OBJECTIVES
 BLOCK DIAGRAM
 CIRCUIT DIAGRAM
 WORKING PRINCIPLE
ADVANTAGES AND DISADVANTAGES
APPLICATIONS
CONCULSION

3. INTRODUCTION
 The sun is made up of hydrogen and helium and it emits enormous amount of heat.
 A solar cell which forms a primary part of the solar mobile charger works on the principle
of photovoltaic effect.
 It is made up of packets of energy called PHOTON
 When a photon is absorbed the energy of the photon is transferred to the electron.

4. OBJECTIVES
 To study the basic operations of a solar mobile charger.
 To know the advantages and limitations of its use.
 To know the future of solar mobile charger.
 Maximizing the use of it in Day to Day life.

5. SOLAR PANELS
 A solar panel is a set of solar photovoltaic modules
electrically connected and mounted on a supporting
structure.
 It can be used as a component of a larger photovoltaic
system to generate and supply electricity in commercial
and residential applications
 A photovoltaic system typically includes an inverter , and
sometimes a battery and solar tracker

6. REGULATOR
 A voltage regulator is used to ensure that no more than is
delivered .
 If a DC supply of greater than 12v is used, excessive heat
will be generated and the board may be damaged. If a DC
supply of less then 5v is used , insufficient voltage will be
present at the regulator’s output.
 If power supply provides a voltage higher than 7 or 8 volts,
the regulator must dissipate significant heat,

7. WORKING PRINCIPLE
 Photons attacking the solar cells are absorbed by any
semiconducting material such as silicon.
 The energy of the absorbed photon is transferred to the
electron.
 This energy knocks of the electrons from the atoms.
 It flow unidirectional through the material which provides
electrical energy.
 An array of solar cells convert the solar energy into usable
electrical energy.

8. CIRCUIT DIAGRAM

9. ADVANTAGES
• Solar energy is a renewable energy sources.
• Solar energy is a renewable energy sources.
• Solar cells panel on the solar charger does not require much maintenance.
• It also helps reduces cost such as electric bills as the solar charger source of
energy is free.

10. DISADVANTAGES
 Solar charger need light to work
 Charging a device by solar charger is much slower
than the main charger.

11. APPLICATIONS
• Used for low power portable electronics, like calculators or
small fans.
• Small portable models designed to charge a range of different
mobile phones , iPods or other portable audio equipment.
• Public solar chargers permanently installed in public places ,
such as parks and street which can use for free.

12. CONCLUSION
• Battery life is more as high voltages are not developed.
• Adoptability is also high. So solar mobile charger is highly applicable in
today's world.
• Solar energy is renewable and can be used for the simplest Of purpose i.e
solar mobile charger.

13. THANK YOU