voltage detection module

Discussion in 'General Electronics Chat' started by solar77, Aug 27, 2011.

  1. solar77

    Thread Starter New Member

    Aug 27, 2011
    4
    0
    Is there a module that turns the LED one input voltage drops below certain value? even better if this value can be defined in someway.
    the range of detection is 0-12V and accuracy should be 0.1V.
     
  2. JingleJoe

    Member

    Jul 23, 2011
    185
    10
    What do you mean? That you want your LED to turn on between 0 and 12 volts? Because as far as I know the component for that is called a switch :p

    Op amp voltage crossing detector, look that up, I think it's what you want.
     
  3. solar77

    Thread Starter New Member

    Aug 27, 2011
    4
    0
    well, I am looking for a battery level indicator. once the voltage drops below a value, the indicator lights a LED. Hope that make more sense than my previous description.
     
  4. Smoke_Maker

    Active Member

    Sep 24, 2007
    126
    15
    Try one of these, I use then to detect low voltage in batteries.

    S-80960CLMC-G7W-T2
     
  5. Jaguarjoe

    Active Member

    Apr 7, 2010
    770
    90
    If its just voltage you want, look through the ebooks at the top of this website and search for "comparator". You will be able to exactly set the trip point you desire.
     
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