Hello, I'm trying to find a part in PSpice that has an input and an output. When the input voltage exceeds a certain number, the part generates a pulse with a delay (and a certain width, of course). Is there a ready part in PSpice for that purpose?
You are searching for a monostable multivibrator, maybe preceded by a comparator that generate the impulse that will trigger the monostable.
There are many possible solutions. See:
https://en.wikipedia.org/wiki/Multivibrator#Monostable_multivibrator_circuit
Thank you very much, that's indeed what I'm searching for. Can you tell me what transistor should I use for this circuit?
An historical IC, the timer 555 works as monostable too. I think it is present in spice Libraries.
Please see:
https://en.wikipedia.org/wiki/555_timer_IC
It indeed works, thank you! The problem is... When I simulate the circuit during 1 second, it's very clear that works. When I simulate it in 1 nanosecond, the voltage output of the timer 555 is starting to rise but it only manages to rise a few mV... Can it be made quicker?
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