power switching help

Discussion in 'General Electronics Chat' started by troylong45, May 23, 2015.

  1. troylong45

    Thread Starter New Member

    May 23, 2015
    2
    0
    I have a controller and a led light .
    the controller puts out a 0-10v analog signal to dim the led. it goes from 0 to 10v over a few hours and back down slowly . I would like to have this switch a on/off circuit on the led cus even though the signal is 0v it won't dim to off the led .the led power source has a on/off circuit and I tryed a relay but it will only turn on at like 5 volts and off at 3v I would like for as soon as the dimmer starts it's cycle to turn the led on/off circuit on or off
     
  2. Hypatia's Protege

    Distinguished Member

    Mar 1, 2015
    2,800
    1,237
    That being the case I'd just design a timer from 'scratch' --- Otherwise you could use a comparator (or an Op Amp configured as a comparator) To detect the desired transition level and assert the switch control signal...

    Best regards
    HP
     
  3. troylong45

    Thread Starter New Member

    May 23, 2015
    2
    0
    Ok now I don't know what I need to make that lol . Would u be able to help me with I diagram and list of what parts and models
     
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