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  • Can 12 Volt DC Motor Work On 12 Volt AC Supply?

    mayurpawar85

    Member

    Updated: Oct 25, 2024
    Views: 1.0K
    can a 12v dc motor work on 12v ac supply..i.e. alternately forward & reverse bias?
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Replies

  • sauravgoswami

    Member • Sep 13, 2012

    Yes, you can use a step-down transformer & a bridge rectifier to convert AC into DC and drive your motor
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  • mayurpawar85

    Member • Sep 13, 2012

    saurav actually i want to ask is tat.....let us consider a dc motor having 2 terminal A & B . i connect +ve(of dc source ) to A terminal & -ve to B terminal then motor will rotate
    in clockwise & if i interchange polarity then motor will move anticlockwise ........
    now wat if i connect AC souce to a dc motor ....as half cycle ac is +ve & half cycle is -ve ...so will tat motor roatae clockwise for +ve half cycle & then rotate anti-clockwise for -ve half cycle
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  • dossdss

    Member • Sep 14, 2012

    i think dc motor wont work on 12v ac
    the dc value of the ac is 0.
    secondly as u said fwd n rev bias... but both the effects nullify each other as it happens very fast...
    but still we check it practically...
    u get a dc motor to clg tomorrow.
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  • Jeffrey Arulraj

    Member • Sep 14, 2012

    yeah it will give you a good job of fixing over head wire from the transmission lines and stuff like that

    never try this out it is potentially lethal in many ways my pal

    the motor will only destroy itself and things around it if you try this out
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  • Jeffrey Arulraj

    Member • Sep 14, 2012

    mayurpawar85
    saurav actually i want to ask is tat.....let us consider a dc motor having 2 terminal A & B . i connect +ve(of dc source ) to A terminal & -ve to B terminal then motor will rotate
    in clockwise & if i interchange polarity then motor will move anticlockwise ........
    now wat if i connect AC souce to a dc motor ....as half cycle ac is +ve & half cycle is -ve ...so will tat motor roatae clockwise for +ve half cycle & then
    rotate anti-clockwise for -ve half cycle

    this is not possible as the number of alternating cycles in the AC main is far too much per second and so there is no chance of it to work
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  • arunchary

    Member • Sep 14, 2012

    dc motor never ever works with directly AC values.some conversion circuitry is required to run,that's normal conversion AC to DC, my bro... because DC is consists of "+" and "-"polarities not phase neutral polarities concepts. if you apply the ac supply to DC motor simply winding in side the motor get damages, either in both the situations of AC and DC motor with excitation of opposite field applying respectively directly motors get damages. according the motor nameplate(ratings) we need to apply the supply.
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