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  1. #1
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    interfacing ACS756(HALL Current sensor)+(ADC-PIC)

    hai ALL,


    presently am designing power monitoring system project.
    In that am using ACS756 IC(hall effect current sensor IC). it gives sinusoidal output corresponding to the load(normal -1.6 DC in multimeter)
    when i trying to interface it with ADC of my controller, i try to catch the peak voltage of ADC for corresponding loads.but the out put is not stable.i think i have to follow some steps to measure the current.
    could u suggest me some solution how measure the current from ACS 756?thanks for your support.


    regards,
    karthikeyan

    •   Alt4th May 2010, 13:14

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  2. #2
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    Re: interfacing ACS756(HALL Current sensor)+(ADC-PIC)

    Quote Originally Posted by karthi_keyan
    it gives sinusoidal output corresponding to the load
    How did you get this idea...

    ACS756 gives an analog output proportional to the current is is measuring and not a sinusoidal signal. Please read through : http://www.allegromicro.com/en/Produ..._Numbers/0756/
    and
    http://www.allegromicro.com/en/Produ.../0756/0756.pdf



    •   Alt13th July 2010, 02:52

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  3. #3
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    Re: interfacing ACS756(HALL Current sensor)+(ADC-PIC)

    Hi

    better visit link under given to under stand how it could be done,here is the formula

    Amps = ( Ain - 511.5 ) / 20.46

    http://www.picbasic.org/showthread.p...+effect+sensor

    http://www.picbasic.org/showthread.p...+effect+sensor

    regards
    Fragrance



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