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Solar Panel Universal Mobile Charger with Coin Insertion

Er. Nitin Agarwal1, Santoshi kumar2, Vishal kumar3, Govind4, Deepak kumar5 1,2,3,4,5E.C. Dept., R.B.S. Engg. Tech. Campus, Bichpuri Agra-283105 (U.P)

Abstract - The objective of this project when we inserting a coin in the input device then mobile phone

charging will be start. Basically this project is based on solar energy and the solar panel used to

convert the optical energy into electrical energy. The solar panel universal mobile battery charger

developed which providing a unique service to the rural public area where electricity is not available

for few hour to several hour and different public places such as bus stands, railway stations, hospitals

etc. The solar panel universal mobile battery charger is worked according to the coding written in pic

microcontroller. When we insert a coin, the coin sensor sense the coin and input is given to the pic

microcontroller. The controller read the program and provides supply to the charger for a particular

time period. The time period depends on the coding written in the controller. A multi-pin charger is

connected through the controller. By using the multi-pin charger one or more than mobile will charge.

Keywords - Mobile phone, multi pin battery charger, solar panel, pic-microcontroller, relay.

I. INTRODUCTION

The aim of this project to provide a unique service to the semi urban and rural areas where power

supply is not regular for mobile charging. In this project we are using the solar energy at the place of

external power supply. When the customer insert a coin in this device then the mobile charging will

be start for 10 minute. This project to easily install outside area and any business premises.The growth

of mobile phone market is phenomenal in recent years and the need for the mobile battery charging is

required at anytime and anywhere.

II. BASIC ASSUMPTIONS

The design of solar panel based universal mobile phone charger is based on the following assumptions.

• The solar power is used for mobile battery charging.

• The charging current is required up to 2.5AH @ 3.5VDC.

• The pic microcontroller is used.

• Only one rupees coin is inserted.

• Battery is used for power storage.

International Journal of Recent Trends in Engineering & Research (IJRTER) Volume 02, Issue 04; April - 2016 [ISSN: 2455-1457]

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III. ARCHITECCTURE OF SOLAR PANEL UNIVERSAL MOBILE CHARGER WITH

COIN INSERTION SYSTEM

“Figure 1. Block diagram of solar panel universal mobile charger with coin insertion system”

IV. STAGES

There are two stage in this system one is input stage and second is output and display stage.

4.1. -Input Stage

In the input stage, there are three component connected with each other. First insertion box which is

used for insert the fix size of coin and second component is sensor which is used to sense the coin.

When coin is accepted than the battery charging unit start charging of the mobile battery for a specific

period through the pic- microcontroller , if other coin will inserted so it will be return to the refund

box.

4.2. -Output Stage And Display

The LCD is used to display all the information to the customer. It is connected the controller. When

customer connect the mobile with charger and insert coin so it will display the mobile charging start

or not. If charging is start and mobile charge for a specific time period according to the pic

microcontroller. And after a specific time period it will be show disconnected.

“Figure 2. Circuit diagram of solar panel universal mobile charger with coin insertion system”

VI. EXPERIMENTAL RESULT

This is the mobile charger is totally based on solar energy and it is more useful in today’s life. This

system is effectively and efficient. It’s only one drawback is that it will not use in all night because

V. CIRCUIT DIAGRAM

International Journal of Recent Trends in Engineering & Research (IJRTER) Volume 02, Issue 04; April - 2016 [ISSN: 2455-1457]

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sun energy is not available. But some percent of battery will charge so that for some times this charging

system can use.

VII. FUTURE SCOPE

As we know this system is depend on the solar energy so it is effective, like mobile phone this system

is also used for television in future. Also we can us solar energy for home and industrial purpose.

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VIII. CONCLUSION

A method of mobile charging using Solar Panel Universal Mobile Charger With Coin Insertion has

been designed and developed for rural and remote areas where the electric power is not available

continuous day and night.

REFERENCES

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2. IOSR Journal of Engineering (IOSRJEN) ISSN: 2250-3021 Volume 2, Issue 6 (June 2012), PP 1433-1438.

3. Pulvirenti, F. Milazzo, P. Ursine, R, Charger power switch for mobile phones, Analog and Mixed IC Design, 1997.

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4. Pastre, M. Krummenacher, F. Robortella, R. SimonVermot, R. Kayal, M. Ecole Polytech. Fed. de Lausanne, Lausanne,

A fully integrated solar battery charger Circuits and Systems and TAISA Conference, 2009. NEWCAS-TAISA '09.

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