daveq Posted August 10, 2004 Report Share Posted August 10, 2004 If anyone here knows how to use pspice (I'm using the demo version), I'd be very interested in knowing where to find more information on how to simulate circuits. It has the appearance of being written by the linux community in that it probably works very well for the few who know how to use it. There is very little help included and I am not having much luck using google either. I used an early version on pspice back in college more than 12 years ago but have forgotten most of it. I get the feeling that I'm sitting in the cockpit of a 747 and have no idea how to turn the engines on. I have a very simple, one opamp inverting amplifier that I'm trying to run an analysis on but am very confused about how to handle the voltage supply in addition to wondering how to run the analysis properly. Please help !!!! Thanks, Dave Quote Link to comment Share on other sites More sharing options...
lovekraft Posted August 11, 2004 Report Share Posted August 11, 2004 Sorry, Dave, but after playing with PSPICE for a while, I wussed out and got Circuit Maker 6 Student, but there's a wealth of knowledge (if you can wade through it all) at Duncan Amps' SPICE Page. I think I understand how it's all supposed to work, but after a month of hair-tearing, I gave up - a man's got to know his limitations, and i sure got to know mine! OTOH, plenty of people use it with no trouble, so it's probably just me. Anyway, hopefully Duncan's info will be more help to you than it was to me, and there's a forum if you need to ask questions. Best of luck, even CircuitMaker is a pretty powerful tool for simulating simple stuff, so I'm sure PSPICE is even more powerful in the right hands, just not mine. Quote Link to comment Share on other sites More sharing options...
truerussian558 Posted August 11, 2004 Report Share Posted August 11, 2004 lovekraft what should i set the peak amplitude to, for a signal from a guitar, im testing a wah circuit. Quote Link to comment Share on other sites More sharing options...
lovekraft Posted August 11, 2004 Report Share Posted August 11, 2004 I use 250mV for doing frequency response tests (strong enough to drive it without clipping most things), and 500mV or 1V for checking for clipping (since that's as much or more than most pickups actually produce) - I use a 1KHz sine wave and set the distortion/Fourier analysis for 7 harmonics and the AC analysis for 60Hz to 6KHz (for guitar stuff) with 36 test points and the octave scale in dB, so it matches the curves I'm used to seeing. Quote Link to comment Share on other sites More sharing options...
daveq Posted August 11, 2004 Author Report Share Posted August 11, 2004 Thanks lovekraft - glad to see I'm not the only one who struggles with it. I was able to get a little further along but it just bothers me how little help there is with that program - I don't know for sure what I'm looking at in that analysis setup window. I'll check that other program out - thanks again! Quote Link to comment Share on other sites More sharing options...
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