hi all,
what is a good free spice program? possibly with a large opAmp library....
thanks Ivan
hi all,
what is a good free spice program? possibly with a large opAmp library....
thanks Ivan
LTSpice from Linear Technology
The built-in op amp library is restricted to parts that Linear Technology makes or second sources, but that is a pretty comprehensive selection, and it is easy enough to pick up Spice models for other manufacturers op amps from the manufacturer's web-site. Finding out where to put these models so that LTSpice can find them is a bit trickier, but you can ask for advice here or on sci.electronics.cad.
-- Bill Sloman, Nijmegen
I just put them in lib\\sub, is that wrong?
Either don't cross-post or don't apologize--don't do both.
Learning to use a search engine would be a good skill for you acquire. This has been asked
Hello Paul,
It's ok in principle. It's the first place where LTspice looks for a model file if you don't specify the full path.
I prefer to save models and symbols always into the same directory where I have saved my schematic. If I need a model in five different designs, I save it into everey design directory. This makes it very easy to archive a design. I just zip all the files in the design directory, except the ".raw"-file of course.
Best regards, Helmut
how do you rotate/mirror parts in LTSpice?
thanks again ivan
pick the part up with the open hand, use CTRL+ E, CTRL+R
martin
LTSpice comes with a nice manual. And for those that don't want or can't read, there are icons in the editor window that represent rotating and mirroring (using a captial letter as an example though, so I guess we're back at square one for the illiterate).
robert
ctrl-R / ctrl-E or the E->m or E->3 icons on the toolbar or rotate/mirror from the edit menu.
Do it before pasting (from the library) or after selecting part(s) to divide/drag
Bye. Jasen
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