The document outlines a project on solar mobile chargers presented by students under the guidance of an assistant professor. It covers the principles of photovoltaic effect, components, working, advantages, disadvantages, and applications of solar mobile chargers. The conclusion emphasizes the importance of energy conservation and the benefits of using renewable solar energy for charging mobile devices.

1. ANNAMACHARYA INSTITUTE OF
TECHNOLOGY AND SCIENCES(RAJAMPET)
DEPARTMENT OF ELECTRICAL AND ELECTRONICS
ENGINEERING
Topic Name:-Solar Mobile Charger
Given By, Under Guidence Of,
R.Mani Dhanush Varma Ms S.Rubeena Bi, Assistant professor
Date:25/11/2022

2. SOLAR MOBILE CHARGER

3. CONTENTS:
➢ Introduction
➢ Objectives
➢ Components Of Solar Charger
➢ Working
➢ Advantages
➢ Disadvantages
➢ Applications
➢ Specifications
➢ Conclusion
➢ Reference

4. INTRODUCTION:
● The sum is made up of hydrogen and helium and it
means it emitts large amount of heat.
● Solar Mobile charger works on the principle of
“PHOTOVOLTIC EFFECT”.

5. OBJECTIVES:
❏ To study the basic operation of a solar Mobile charger.
❏ To know the future scope of the solar Mobile charger.
❏ To know the advantages and limitations of its use.

6. COMPONENTS:
Tha hardware components needed for making a solar Mobile
charger are:
★ Solar panel
★ Voltage Regulator
★ Switch
★ Resistors
★ Output Jack

7. Working:

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

9. BLOCK DIAGRAM:

10. ➢ The electrons thus convert solar energy
to electrical energy.
➢ The output from the solar panel is now
sent to a voltage regulator IC7805.
➢ The voltage regulation ensures that the
final output voltage does not exceed 5v.
➢ Thus a constant voltage is supplied and
the mobile gets charged.

11. ADVANTAGES:
➔ Relatively small size and can be used
any where (portability).
➔ Requires no electrical startup power.
➔ Higher efficiency.
➔ Low maintanence.
➔ Emission free.
➔ Environmental.friendly

12. DISADVANTAGES
:
➔ Initial cost is high.
➔ It is slower than normal charger.

13. APPLICATIONS:
★ Used to charge portable audio equipment.
★ Used to Charge other rechargable devices like
mobile phone.

14. SPECIFICATIONS:
● Uses high efficiency monocrystalline
silicon.
● Solar panel:5.5V/1000mA
● Output Voltage:5.5V
● Output current:300-550mA

15. CONCLUSION:
❖ The energy must be conserved and used effeciently.
❖ Solar energy is renewable and can be used for the
simplest of purpose i.e. solar Mobile charger.

16. REFERENCES:
❏ www.google.com
❏ www.wikipedia.com

17. THANKS