El Dijous 23 Maig 2013, a les 01:40:29, al davis va escriure: > To answer your question of why not automatically do an op first > ... It's more flexible this way. Instead of forcing a nominal > static condition, gnucap uses the most recent point from the > most recent dc, op, or tran, which lets you do AC analysis at > non-static points. > > For a simple example, consider a class-B amplifier, underbiased > a little so there is a crossover notch. The usual op would set > the operating point in the middle of the notch, so the AC > analysis would be useless, other than to show how bad the notch > is. > > Run a transient analysis to get it out of the notch, stop there, > do AC there. See how it varies with signal swing. Try it with > different frequencies in the transient analysis. The results > can be very different from any static guess.
Thanks, Al, for this enlightening explanation. My final question, then, is: why gnucap does not automatically substitute zero resistance with "short" value set in options? Orestes. _______________________________________________ Help-gnucap mailing list [email protected] https://lists.gnu.org/mailman/listinfo/help-gnucap
