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    Physics Projectt Power Bank789

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    Gaurav Majumder
    Anish Majumdar completed a physics project on building a portable mobile charger (power bank) for his class XII examinations. The project included a circuit diagram of the components used - an 8V battery, LM7805 voltage regulator, capacitors, resistor, LED, and USB cable. It also provided information on the uses of each component and described how power banks work to store and provide power to charge mobile devices on the go. The project was supervised by his physics teacher and received acknowledgement for various people who provided support and facilities.

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    © All Rights Reserved
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    Physics Projectt Power Bank789

    Uploaded by

    Gaurav Majumder
    303 views10 pages
    Anish Majumdar completed a physics project on building a portable mobile charger (power bank) for his class XII examinations. The project included a circuit diagram of the components used - an 8V battery, LM7805 voltage regulator, capacitors, resistor, LED, and USB cable. It also provided information on the uses of each component and described how power banks work to store and provide power to charge mobile devices on the go. The project was supervised by his physics teacher and received acknowledgement for various people who provided support and facilities.

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    Project for class 12 cbse

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    Anish Majumdar completed a physics project on building a portable mobile charger (power bank) for his class XII examinations. The project included a circuit diagram of the components used - an 8V battery, LM7805 voltage regulator, capacitors, resistor, LED, and USB cable. It also provided information on the uses of each component and described how power banks work to store and provide power to charge mobile devices on the go. The project was supervised by his physics teacher and received acknowledgement for various people who provided support and facilities.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    303 views10 pages

    Physics Projectt Power Bank789

    Uploaded by

    Gaurav Majumder
    Anish Majumdar completed a physics project on building a portable mobile charger (power bank) for his class XII examinations. The project included a circuit diagram of the components used - an 8V battery, LM7805 voltage regulator, capacitors, resistor, LED, and USB cable. It also provided information on the uses of each component and described how power banks work to store and provide power to charge mobile devices on the go. The project was supervised by his physics teacher and received acknowledgement for various people who provided support and facilities.

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    © All Rights Reserved
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    A.I.S.S.C.E.

    : 2019-2020

    PHYSICS PROJECT WORK

    SUBJECT : PORTABLE MOBILE


    CHARGER (POWER BANK)

    NAME - ANISH MAJUMDAR


    CLASS - XII (SCIENCE)
    SECTION - C
    BOARD ROLL NUMBER -
    INDEX
    SL. NO. TOPIC PAGE NO.

    1 CERTIFICATE OF EFFORT 01

    2 ACKNOWLEDGEMENT 02

    PORTABLE MOBILE
    3 CHARGER 05
    (POWER BANK)

    4 CIRCUIT DIAGRAM 06

    5 BIBLIOGRAPHY 07
    CERTIFICATE OF EFFORT
    This is to certify that Anish Majumdar, a student of BHOLANANDA NATIONAL
    VIDYALAYA, Class-xii(Science), Section-C, has completed the Physics Project
    Work on PORTABLE MOBILE CHARGER (POWER BANK), within the scheduled
    time under my supervision.

    This project may be considered as a part of fulfillment of AISSCE : 2019-2020.

    ______________________________ _______________________
    MR.SOURISH MUKHERJEE MRS.SWATI RUDRA
    (DEPARTMENT OF PHYSICS) (PRINCIPAL)

    __________________________
    (EXTERNAL EXAMINER)
    ACKNOWLEDGEMENT
    THE PROJECT HAS BEEN REALIEZED AS A RESULT OF THE NUMBER OF
    EFFORTS OF A MULTITUDE OF PEOPLE. HENCE, I TAKE THIS OPPURTUNITY
    TO ACKNOWLEDGE ALL OF THEM THROUGH THIS HUMBLE EFFORT.

    I OWE A LOT TO OUR PHYSICS TEACHER, MR.SOURISH MUKHERJEE,


    WHOSE SUPERVISION AND GUIDANCE HELPED ME IN THE COMPLETION OF
    THID PROJECT.

    I ALSO OWE MY GRATITUDE TO THE LABORATORY INSTRUCTOR OF OUR


    SCHOOL FOR HIS HELP DURING THE PRACTICAL PART OF THIS PROJECT.

    I AM ALSO GRATEFUL TO OUR PRICIPAL, MRS.SWATI RUDRA, FOR


    PROVIDING ALL THE NECESSARY FACILITIES TO CONDUCT THE PROJECT
    WORK AND A PLATFORM LIKE THIS SCHOOL TO LEAD A LIFE FORWARD.

    I THANK MY PARENTS FOR THEIR NEVER-ENDING SUPPORT, GUIDANCE AND


    ENCOURAGEMENT.

    LAST BUT NOT THE LEAST, I THANK MY FRIENDS FOR THEIR CONSTANT HELP
    AND SUPPORT.
    COMPONENTS USED IN THE
    CIRCUIT
     8V Battery.
     LM7805 (IC used as voltage regulator).
     100 micro-farad capacitor.
     470 micro-farad capacitor.
     220 ohm resistor.
     LED (Light Emitting Diode).
     USB Cable.

    USES OF VARIOUS COMPONENTS


     8V battery is used as the DC power source.
     100 and 470 micro-farad capacitors are used. These capacitors are
    known as bypass capacitors and are employed to bypass extremely tiny
    duration spikes to the ground without distressing the other components.
     220 ohm resistor, LM7805(IC) are used to control the output voltage to
    avoid damaging the phone.
     USB(Universal Serial Bus) is used to connect the phone for charging.
     Light Emitting Diode(LED)is used as an indicator.
    IC 7805
    All the voltage sources are not able to give fixed output due to
    fluctuations in the circuit. For getting constant and steady
    current output, voltage regulators are used. The Integrated
    Circuits(ICs) which are used for the regulation of voltage are termed
    as voltage regulator ICs. The voltage regulator IC 7805 is
    actually a member of 78xx series of voltage regulator ICs. It is a
    fixed linear voltage regulator. The xx present in 78xx,
    represents the value of the fixed output voltage that the
    particular IC provides. For IC 7805, it is +5V DC regulated power
    supply. This regulator IC also adds provision for heat sink.
    The input voltage to this voltage regulator can be up to 35V,
    and this IC can give a constant 5V for any value of input less
    than or equal to 35V which is the threshold limit.

    LM7805 Circuit Diagram LM7805 Pin-out Diagram


    MOBILE CHARGER
    (POWER BANK)
    Portable Power Banks are comprised of a special battery in a
    special case with special circuit to control the power flow.
    They allow us to store electrical energy (deposit in the bank)
    and then later use it to charge up the mobile device (withdraw
    the power from the bank). Power Banks have become
    increasingly popular as battery powers of popular devices are
    outstripped by the use they are subjected to each day.
    CIRCUIT DIAGRAM
    BIBLIOGRAPHY

    Concept of Physics by H.C. Verma

    https://www.wikihow.com/Make-a-Porta
    ble-and-Rechargeable-USB-Charger

    NCERT Physics for Class XII

    www.youtube.com/powerbank-making

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