Can someone help me with a simple circuit?

Discussion in 'General Electronics Chat' started by GuitarmMan, Jun 8, 2010.

  1. GuitarmMan

    Thread Starter New Member

    Jun 8, 2010
    2
    0
    Im trying to create a circuit for something I'm building for a school project.

    Here is the diagram so far...

    [​IMG]

    As you can see a very simple circuit, in order for the other led to light, the green one has to be switched on.

    The switch to turn the other LED on is a momentary switch, I want it so that once the momentary switch has been pressed LED stays on until you turn off the other switch.

    I think I can do this with a transistor but have no idea how, can anyone help me?

    Thanks,
    ~G-Man :)
     
    Last edited: Jun 8, 2010
  2. R!f@@

    AAC Fanatic!

    Apr 2, 2009
    8,748
    759
    can you explain a bit more clearly
     
  3. GuitarmMan

    Thread Starter New Member

    Jun 8, 2010
    2
    0
    Basically, there are two LEDs (green and red) and two switches. Each switch controls one of the LEDs. But in order to turn on the LED on the right, the one on the left must be turned on.

    The switch to turn the LED on the right is a momentary push switch, I would like to modify the circuit so once the switch on the right has been pressed the (Red) LED stays on until the switch on the left (which controls the left LED) is turned off (and it has to stay off until both switches have been pressed again).

    Understand?

    Thanks,
    ~G-Man
     
  4. Jony130

    AAC Fanatic!

    Feb 17, 2009
    3,957
    1,097
    And simple RS flip-flop using only two BJT

    [​IMG]
     
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