On/off circuit

Discussion in 'General Electronics Chat' started by asdasd12345, Sep 8, 2005.

  1. asdasd12345

    Thread Starter New Member

    Jul 24, 2005
    8
    0
    How do you make a circuit, that when you push a button, the circuit comes on until the button is pushed again, at which point the circuit turns off. I dont know want to use a push button switch, but I want to understand how you can use transistors to control other parts of a circuit. Does this make sense?
     
  2. glen65

    New Member

    Nov 30, 2004
    3
    0
    What do you want to control with this switch?
    Im asking so that we have some idea as to
    how much current it will need to handle.
     
  3. asdasd12345

    Thread Starter New Member

    Jul 24, 2005
    8
    0
    Just turn on an LED
     
  4. thingmaker3

    Retired Moderator

    May 16, 2005
    5,072
    6
  5. NickC84

    New Member

    Sep 13, 2005
    9
    0
    Thingmaker hit it dead on, My thoughts exactally. You could use those little snazzy pcb mount pushbutton switchs and make some cool buttons for it. Extremely simple circuit but would impress the crap outta your friends. =) Oh and you can use the 5v (in a perfect world) logic to drive a transistor and turn on a bigger load if you want. So the possibilities are mind boggling.
     
  6. thingmaker3

    Retired Moderator

    May 16, 2005
    5,072
    6
    Once you've got it working, you can replace the LED with a transistor-driven relay and control... anything!
     
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