- #1
scottietohottie
- 3
- 0
Hello
I currerntly have this circuit -
https://www.physicsforums.com/attachment.php?attachmentid=8419&stc=1&d=1164497449
circuit1.jpg
I am trying to keep it as simple as possible. I have scoured loads of site etc, an have even found the circuit I want, or should I say it is described as the one I want.
I have replaced R with a potentiometer to make the output variable, but the aim is to make this a one time circuit. I want to push a current through the circuit it fire for a variable amount of time (via the potentiometer), then stop even though the trigger has not.
I have been told that this is done with the use of and extra capacitor, resistor, LED and Transistor (used as a not gate) to get this to work. So far all of the layouts I have been given have not worked. Any ideas would be great.
Thanks
Scott
I currerntly have this circuit -
https://www.physicsforums.com/attachment.php?attachmentid=8419&stc=1&d=1164497449
circuit1.jpg
I am trying to keep it as simple as possible. I have scoured loads of site etc, an have even found the circuit I want, or should I say it is described as the one I want.
I have replaced R with a potentiometer to make the output variable, but the aim is to make this a one time circuit. I want to push a current through the circuit it fire for a variable amount of time (via the potentiometer), then stop even though the trigger has not.
I have been told that this is done with the use of and extra capacitor, resistor, LED and Transistor (used as a not gate) to get this to work. So far all of the layouts I have been given have not worked. Any ideas would be great.
Thanks
Scott