434749615-Solar-Mobile-Charging-PPT (1).pdf

solar cell presentation

1. A
Seminar Report
On

2. INTRODUCTION
BLOCK DIAGRAM & CIRCUIT DIAGRAM
WORKING PRINCIPLE OF SOLAR MOBILE CHARGER
WHAT IS SOLAR CELL?
CONSTRUCTION OF SOLAR PANEL
ADVANTAGES & DISADVANTAGES
APPLICATIONS
CONLUSION
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3. Solarcellphonechargerusesolarpanelstochargethecell
phonebatteries.
Solarcellworksontheprincipleof“PhotoVoltaicEffect”.
Therearepublicsolarchargersformobilephoneswhichcan
beinstalledpermanentlyinpublicplacessuchasstreets,park
andsquares.
Solarcellphonechargerscomesindifferentshapesand
configurationsincludingfoldingandrotatingtypes
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4. Solar
Panel Circuit
With
Voltage
Regulator
Cell Phone
Connector
to the Cell
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6. Itworksontheprincipleofphotovoltaicenergythatis,
whenlightfallsonthesolarcell,electron–holepairsare
createdinthen-typeemitterandinthep-typebase.The
generatedelectrons(fromthebase)andholes(fromthe
emitter)thendiffusetothejunctionandaresweptawayby
theelectricfield,thusproducing.Certainmodulesare
selectedandworkedouttosuitablespecifications.
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7. Asolarcellorphotovoltaiccellisanelectrical
devicethatconvertstheenergyoflightdirectlyinto
electricitybythephotovoltaiceffect.
Figureof Solar Cell
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9. AmorphousSiliconsolarcell(a-Si)
Cadmiumtelluridesolarcell(CdTe)
Copperindiumgalliumselenidesolarcells(CI(G)S)
Crystallinesiliconsolarcell(c-Si)
Galliumarsenidegermaniumsolarcell(GaAs)
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From a Solar Cell to a PV
System or Solar Module

11. •APhotovoltaicsystemtypicallyincludesanarrayof
photovoltaiccells.
•Eachcellconsistsofdopedsilicon(p-typeandn-
type),incontacttoformajunction,witheachwafer
havinganelectricalconnection.
•Oneofthesecellsmaybecapableofproducingupto
0.7Volt,withmaximumpowerbeingproducedata
voltageofaround0.4Volt.
•AsaSiliconisareflective,itiscoatedwithanon-
reflectivelayertoincreaselightabsorption.
Example:-LayerofToughglass.
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Photovoltaicpanelscanusedirectorindirect
sunlighttogeneratepower,thoughtheyaremosteffective
indirectsunlight.Solarpanelwillstillworkevenwhenthe
lightisreflectedorpartiallyblockedbyclouds

13. The main advantages of this concept is to save
electrical energy.
The mobile phone solar charger makes the
device a favorite among outdoor enthusiasts.
Solar mobile charger design is usually a small
and thin, so you can use this machine as
portable device
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14. Solarpanelsproduceselectricityonlyduring
daylight.
Thevoltagefromasolarpanelcanvaryhugely,
dependingupontheincidentrays.
Thedrawbackofsolarpoweristhecostof
purchasingasasolarchargerwillbe350Rupees,
whileanormalbatterychargercancostlessthan
80rupees.
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16. Solar Energy for Street
Light
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17. Solar Energy For Battery
Charging
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18. Solar Energy for Heating
Water
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19. ForLowpowerportable
Electronics,likecalculatoror
smallfans.
Solarchargercanalsobe
usedinchargingflashlights.
Solarchargercanbeusedto
chargetheiPodsorother
portableaudioequipments.
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20. Solarmobilechargersaresimple,portableand
readytouse,whichcanbeusedbyanyone
especiallyinremoteareas.
Anexponentialgrowingpopulation,the
developmentandimprovementofsolarmobile
chargerisessentialtosustainworldpower
hunger.
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