SWITCH BOX

Discussion in 'The Projects Forum' started by jaredbale2000, May 27, 2009.

  1. jaredbale2000

    Thread Starter New Member

    Oct 30, 2007
    4
    0
    i NEED TO BUILD A BASIC SWICTH BOX THAT LIGHTS A DC BULB WHEN I TURN IT ON.HOWEVER THE BULB SHOULD WORK BETWEEN 24V AND 60VOLTS AS I AM TESTING SOME UNITS THAT VARY WITHIN THIS RANGE.

    THANKS GUYS
     
  2. CDRIVE

    Senior Member

    Jul 1, 2008
    2,223
    99
    So you need a way to select the correct voltage for different lamps within that range?
     
  3. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    You can build a simple current source with a transistor as to have a constant current almost independently of the applied voltage across the bulb.
     
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