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Seminar On Solar Mobile Charger: Submitted To: Submitted by

The document summarizes a seminar presentation on a solar mobile charger. It introduces the basic working principles of solar cells that convert sunlight into electrical energy. It then outlines the objectives, methods, circuit diagram, results and specifications of a solar mobile charger project. The summary discusses how a solar charger works by using a solar panel to absorb photons and transfer their energy to electrons, which produces a current that can be regulated and used to charge a mobile phone battery in a portable and sustainable way without emissions. However, it notes that the initial costs are high and charging can be slower than traditional chargers. Overall, the document evaluates solar mobile chargers as an efficient use of renewable energy for powering small portable devices.

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Akhila Gottemukkula
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386 views16 pages

Seminar On Solar Mobile Charger: Submitted To: Submitted by

The document summarizes a seminar presentation on a solar mobile charger. It introduces the basic working principles of solar cells that convert sunlight into electrical energy. It then outlines the objectives, methods, circuit diagram, results and specifications of a solar mobile charger project. The summary discusses how a solar charger works by using a solar panel to absorb photons and transfer their energy to electrons, which produces a current that can be regulated and used to charge a mobile phone battery in a portable and sustainable way without emissions. However, it notes that the initial costs are high and charging can be slower than traditional chargers. Overall, the document evaluates solar mobile chargers as an efficient use of renewable energy for powering small portable devices.

Uploaded by

Akhila Gottemukkula
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PPTX, PDF, TXT or read online on Scribd
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www.studymafia.

org
Seminar
On
Solar Mobile Charger

Submitted To: Submitted By:


www.studymafia.org www.studymafia.org
CONTENTS:
 Introduction
 Objectives

 Methods and Procedures

 Working

 Results and Discussion

 Specifications

 Conclusion

 References

2
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
“Photons”.
 When a photon is absorbed the energy of the
photon is transferred to the electron.
 Given the current energy crisis the need of a
more sustainable energy is required which is
3
provided by solar energy.
OBJECTIVES:
 To study the basic operations of a solar mobile
charger.
 To know the advantages and limitations of its
use.
 To know the future scope of the solar mobile
charger.
 Maximizing the use of it in day to day life.

4
METHODS AND PROCEDURES:
 The hardware components needed for making a
solar mobile charger are:
 Solar Panel

 Voltage Regulator

 Switch

 Resistors

 Output Jack.

5
WORKING:

 This is the
diagrammatic
working of a Solar
panel.
 This forms the basic
principle of a Solar
mobile charger.

6
WORKING(CONTD.)

 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 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.
7
CIRCUIT:

8
CIRCUIT(CONTD.)
 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 regulator ensures that the final
output voltage does not exceed 5V.
 Thus a constant voltage is supplied and the
mobile gets charged.

9
BLOCK DIAGRAM:

10
RESULTS AND DISCUSSION:
 It can be used in various applications and has a
lot of features.
 Relatively small size and can be used
anywhere(portability).
 Requires no electrical start-up power.

 Higher efficiency than photovoltaic systems of


the same size.
 Low maintenance, emission free and
environment friendly.

11
 But one of the major factors that needs to be
discussed is about the cost.
 Solar charger is again like all other solar energy
gadgets.
 It is not cost effective and way more expensive.

 The charging rate of a solar charger can be much


slower than that of a normal charger.
 These are the few points that are to be discussed
so that solar charger can be used without any
disadvantages.

12
SPECIFICATIONS:
 Uses high-efficiency monocrystalline silicon
 Solar panel: 5.5V/1000mA

 Output voltage: 5.5V

 Output current: 300-550mA

13
CONCLUSION:
 The energy must thus be conserved and used
efficiently.
 In solar mobile charger ripples are not produced
as a direct DC power is supplied.
 Battery life is high and also its adaptability.

 So, Solar mobile charger is highly applicable in


today’s world.
 This is due to the continual depletion of
resources.
 Solar energy is renewable and can be used for the
simplest of purpose i.e. solar mobile charger. 14
REFERENCES:
 www.google.com
 www.wikipedia.com

 www.studymafia.org

15
THANKS

16

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