bacterozoid said:
You might be right about those speeds. Would a dependent source work for something like this?
I'm not sure what you mean by "dependent source". A voltage-controlled current source?
I've got PSpice because I'm a student and get things like this for free.
It's a great tool and worked perfect for anything I've ever done...until now.
Cool. Never tried it, but I downloaded part of it today since it appears that Cadence has folded it into the main package and end-of-lifed the standalone version, but I would still need to get the whole package to install it.
I'll try to post my schematic as well as a waveform soon. If I can't get a way to simulate the LCR I'll just hack something in and see what the output says. If you guys think it looks about like it should I'll just go for it on the breadboard.
I'd try the VAR_LDR model from the LTSpice group and see if you can import that and use it. It works for me.
Just a side note: I think 'LCR' is usually used as a variant on 'RLC', i.e. a resistor-capacitor-inductor oscillator. At any rate, I almost always see the term 'LDR' used to refer to a voltage-dependent resistor. Not important except it might make google searches return more relevant results.
...which brings me to another question. Is there some way I can mimic an audio signal in spice...or at least vary the amplitude of my input. The filters work best in dynamic environments (That's how it knows when to wah) and so using a 60Hz sine wave doesn't give me much of that.
Again, I don't know about your spice, but LTSpice lets you import a .WAV file to use as a signal source. I would presume Orcad's does as well. Check the help file.
Oh wait. A couple of forum posts I found mentioned that the Pspice student version does not include the ability to use a .WAV file as a signal source.
Have you considered downloading and trying LTSpice? It might not have all the bells and whistles of Pspice (well, it has at least one bell Pspice doesn't have: the .WAV file thing). Bonus features: you aren't cut off when you graduate and more people here are likely to have it installed and be familiar with it.
Torben