On Thu, 02 Apr 2009 22:11:11 +0200, Alan Grimes <agri...@speakeasy.net> wrote:
> P Zoltan wrote: >> Hello people, >> >> >> I've found a very annoying bug, yet I don't really have time to >> investigate it deeply. Here is the entry in the bugtracker: >> https://sourceforge.net/tracker2/?func=detail&aid=2687692&group_id=143459&atid=755588 >> . It's about connecting logic outputs together using resistors. Instead >> of >> forming an algebric mean between the voltages, se simulator makes the >> voltage on logical output aproximately equal. > > That's not a bug, it's a feature. ;) > > Open the settings menu, select "configure ktechlab", then select "logic" > and finally set the "low output impedance" to whatever you think it > should be. ;) > Thanks, it seems that originally it was 150; setting it to 1 ohm fixed the problem. My new question is then: what should be the default value? If someone wants to convert a digital signal to analog, by using R-2R network, he'll have a surprize... > What I've been mulling over is this "EMISSION COEFFICIENT" crap in diode > settings... > > It is currently set to disallow settings below unity, (which prevents > certain types of diodes from being implemented.) > > There seem to be four types of diodes out there: > > PN junction diodes. > MS junction diodes. (Schottky) > Germanium diodes. > Selenium diodes. > > There needs to be a wizard that can work the gawdawful equations for you > for your selected diode type and give you some user friendly parameters > that will let you tune the variable for your specific part. > > The equations for this variable really are gawdawful, I have them for PN > junction diodes and MS diodes, but it'll be a pain to copy them into > e-mail and explain each of the dozen or so variables. =P > > This wizard and settings should be included in the not yet implemented component editor (in my opinion); the equations should be part of the model -- in some way -- but I think we'll need some brainstorming in this topic: we haven't discussed how could we edit/modify models, without recompiling ktechlab. ------------------------------------------------------------------------------ _______________________________________________ Ktechlab-devel mailing list Ktechlab-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ktechlab-devel
