I want to use a switch in my simulation which opens in a certain time and after some micro seconds closes... Is there any switch with these characteristics in pspice library? and if not how can I make such a switch?
In Spice there is a Voltage Controlled switch:
Sxxx n1 n2 nc+ nc- [on,off]
so, what you have to worry about is to generate a voltage waveform that goes high when you want and goes down after a more or less strictly specified amount of time.
This seems the behaviour of a monostable multivibrator, that is easy to accomplish, google that.
It still remains the trigger for the monostable circuit, but "in a certain time" is too vague to make a guess.
Remember that in Spice you can control a voltage generator with an external text file. So if this "certain time" is tied to an absolute simulation time, you can use an external input to trigger a voltage generator that triggers the monostable.
Many greetings
S.
> Remember that in Spice you can control a voltage generator with an external
> text file. So if this "certain time" is tied to an absolute simulation time, you can
> use an external input to trigger a voltage generator that triggers the monostable.
or better the external input can be tied directly to the voltage controlled switched.
Greetings
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