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  1. #1
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    Is there any hbridge available for Ac motor

    Hello friends,
    i want to rotate AC motor in both direction from micro controller.
    Motor Specifications:1/4 HP, torque 65kg, 2A, 1440 RPM

    i am planning to use 4 relays (12v -230vac) and from their to AC contactors..
    But it is expensive and bulk 1.

    So can anybody give me any idea or circuit or ic to rotate this motor in both direction

    Thanks In Advance..

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  2. #2
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    Re: Is there any hbridge available for Ac motor

    You can control a DC Motor to rotate in both directions with H Bridge and not AC Motor

    Try a different method



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    Re: Is there any hbridge available for Ac motor

    Ya i know ..please suggest some method Mr. nandhu



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    Re: Is there any hbridge available for Ac motor

    Aameer, there are many types of AC motor, therefore many answers

    Exactly what type of AC motor do you have? Single phase, three phase, split phase, capacitor start, permanent split capacitor, universal, ...



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    Re: Is there any hbridge available for Ac motor

    Its a single phase AC motor with capacitor attached to it to start up it seems.
    it working fine when i change the polarities in both dirction but with microcntroller interfacing i m in confusion. whetehr i will go for 4 relays /what



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    Re: Is there any hbridge available for Ac motor

    Are you saying that the motor reverses direction if you reverse the power connections manually?



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  7. #7
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    Re: Is there any hbridge available for Ac motor

    yes...when i connect the phase and neutral wires in reverse it is rotating reverse.so how to control with microcontroller



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