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  • Is it possible to charge mobile phone using magnetic induction??

    20may07ec102

    Member

    Updated: Oct 26, 2024
    Views: 981
    Hello engineers,
    we all know that relative motion between a magnetic field and a conductor produces electromotive force in a conductor.

    Now i have some issues regarding it:
    1) Will it(induced voltage) be AC or DC?(I think it's AC but don't know exactly)
    2) can we induce sufficient voltage to charge up the mobile?
    3) I have tried using a pair of magnets and a conductor but it doesn't show any deflection in digital multimeter.So can any one suggest a practical approach toward this phenomenon?

    I want to use it in this way:
    a magnet along with other components are connected in such a manner that while walking ,due to magnetic induction emf is produced.
    Think like a magnet on an ankle and other stuff on another can produce emf..
    It's kind of crazy,isn't it?
    But if you have any suggestion then please help me.
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Replies

  • lal

    Member • Feb 18, 2010

    I have tried using a pair of magnets and a conductor
    Actually, the induced EMF will depend on the magnetic flux linkage. So we need to think of how to increase that!😀 So we have to increase the magnetic power or the no of conductors. If you try using a single condutor, you cant see any induced electricity. The relative velocity of the condutors and magnet counts too...😀
    The induced emf is given by E=BLV(assuming conductor is perpendicular to field. If not multiply by sin(a), where 'a' is the angle between conductor and field).
    Here B-Magnetic power, L-length of conductor, V-velocity

    a magnet along with other components are connected in such a manner that while walking ,due to magnetic induction emf is produced.
    Think like a magnet on an ankle and other stuff on another can produce emf..
    I think, we wont get enough emf. Because as said earlier, to produce a fair amount of emf, you want good powerful magnet and lot of conductors. So the system would go really bulky and heavy. I think costly too...
    But as an alternative, we can use piezoelectric crystals for better output😀 May be placing it just under your shoes and thats all! You are done 😉
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  • 20may07ec102

    Member • Feb 18, 2010

    Thank you friend.
    Thank you very much.
    I may go with this new concept of piezoelectricity instead of wasting my time.
    I have found so many information through google.Thanks again.
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  • Anil Jain

    Member • Feb 18, 2010

    Seems you are talking about wirless charging,

    See, if this can help you - #-Link-Snipped-#

    -CB
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  • lal

    Member • Feb 20, 2010

    Dont forget to post your updates with the project...
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  • sankar3

    Member • Feb 20, 2010

    20may07ec102
    a magnet along with other components are connected in such a manner that while walking ,due to magnetic induction emf is produced.
    Think like a magnet on an ankle and other stuff on another can produce emf..
    It's kind of crazy,isn't it?
    But if you have any suggestion then please help me.
    hi fiend, i am doing the project on mobile charging in journey on cars, bikes etc.. i think our concept is similar that is to charge the mobile by the emf produced by the mechanical motion of magnets....
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  • 20may07ec102

    Member • Feb 20, 2010

    lal
    Dont forget to post your updates with the project...
    Sure. if i will succeed.😀
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  • 20may07ec102

    Member • Feb 20, 2010

    sankar3
    hi fiend, i am doing the project on mobile charging in journey on cars, bikes etc.. i think our concept is similar that is to charge the mobile by the emf produced by the mechanical motion of magnets....
    Yes i had the same concept in mind.But it is good with your idea with vehicles.Mine is bit impractical with humans.:neutral:.You too don't forget to post your project details.Best of Luck.
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  • 20may07ec102

    Member • Feb 20, 2010

    Thanks to all of you for replying.
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