How do I achieve this (pic attached)

Discussion in 'The Projects Forum' started by rokz_2005, Jul 12, 2011.

  1. rokz_2005

    Thread Starter Member

    May 14, 2011
    68
    0
    How can I translate the schematics into something i'll understand. I have no idea what the image is. Can someone direct me, thanks
     
  2. Kermit2

    AAC Fanatic!

    Feb 5, 2010
    3,783
    943
    Rt and Ct are an RC timing component pair(Resistance/Capacitance) The waveform suggests a triggered monostable multivibrator.
     
  3. Jaguarjoe

    Active Member

    Apr 7, 2010
    770
    90
    T is the trigger input
    Q is output
    Q bar (or not Q) is the opposite of Q (when Q is high, not Q is low and vice versa)

    If there was a part number inside the big box, on top of it, or under it, you could find its datasheet which is the key to understanding it.
     
  4. circa27

    Member

    Feb 22, 2011
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    I love multivibrators
     
  5. rokz_2005

    Thread Starter Member

    May 14, 2011
    68
    0
    I may have fond the answer. Pretty close to this.

    See pic, (got this from http://www.falstad.com/circuit/e-multivib-mono.html )

    Can someone confirm that the components used in this circuit are..
    1 switch
    5 Resistors
    1 capacitor
    3 Transistors (I have bc547 - Can I use that?)
    And i'm guessing that when I change the value of the capacitor my out put pulse can be controlled?

    Thanks
     
  6. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    The BC547 will work fine in that circuit.
    Yes, changing the capacitor value will change the timing.
     
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