zero power detector

Discussion in 'General Electronics Chat' started by Vasanthkini, Jun 17, 2010.

  1. Vasanthkini

    Thread Starter Member

    Jun 9, 2010
    40
    2
    Hey!

    Can some one explain me how does a zero power detector work?

    Thanks:)

    ?
     
  2. studiot

    AAC Fanatic!

    Nov 9, 2007
    5,005
    513
    Do you mean a zero crossing detector, as used in some logif and thyristor drive circuits?

    Or do you really mean zero power as in, for instance, power failure indicators or as in electric kettle latch circuits?
     
  3. Vasanthkini

    Thread Starter Member

    Jun 9, 2010
    40
    2
    Yep.I meant zero POWER detector.One of the IC data sheet reads it so.Even i am a little confused on this !

    Thanks
     
  4. KMoffett

    AAC Fanatic!

    Dec 19, 2007
    2,574
    230
    How about posting the IC number or a link to the datasheet? That would help.

    Ken
     
  5. Vasanthkini

    Thread Starter Member

    Jun 9, 2010
    40
    2
  6. Bychon

    Member

    Mar 12, 2010
    469
    41
    This particular zero power detector detects when zero power is being used by the load in order to avoid supplying too much voltage during light load conditions. It is comparing a voltage feedback to a known voltage (2.3 volts) in order to shut down the drive to the MOSFET.
     
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