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zero crossing detector

Discussion in 'General Electronics Chat' started by khatib, Mar 11, 2009.

  1. khatib

    khatib Member

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    When can i use the zero crossing detector in my UPS ?

    is it to :
    1- to detect the ac interrupt .
    2- when the AC return .
    i use u controller (PIC).

    thanks for all .
     
  2. Boncuk

    Boncuk New Member

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    A zero crossing detector is normally used to detect zero crossing of AC to synchronize triac firing with mains frequency of phase controlled units, such as dimmers and rpm regulator circuits for motors.

    Boncuk
     
  3. khatib

    khatib Member

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    ok .. I Know
    But My Question Is : Can I Use It For Switch Conrtol In Ups ?
     
  4. dave

    Dave New Member

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  5. Grossel

    Grossel Member

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    Yes. To prevent unwanted phase shift when swich mode.
     

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