On 02/07/09 22:09, tho...@tgohome.com wrote: > I'm more of an analog kinda guy, I don't really deal that much with > digital circuits yet - but I'm still learning. Could the glitch be > prevented by making inputs and outputs directional (inputs can only take > in signals, outputs can only put signals in.) I assume that you've thought > of this already and there's some very good reason it isn't done... > > Anyway, I will be creating a patch based on current SVN soon. > > Quick status check. I've added over-rates for resistors now. Resistors > also display the power they're dissipating. See screenshot: > http://files.getdropbox.com/u/1134084/ResistorOverRatePlusPower.png > > (In the picture the resistor is 1/2W, 350V max., so it would normally be > burning up and destroying itself.) > > I was thinking of doing some of the following: > - NTC/PTC resistors. These resistors vary resistance with temperature. > The resistors can be specifically designed to warm up and reduce/increase > resistance. For example, in some CRT TVs, they are used to control the > CRT degauss coil - as the TV starts up the resistor is cool, and at a low > resistane, and the coil degausses the TV. Then when the resistor's > temperature increases the coil reduces in power over a few seconds. A bit > of a speciality item, but would be a very neat addition. > - Variable resistors with: > - Log/antilog/linear scale. > - Power dissipation/voltage limits, identical to fixed resistors. > - Update value next to resistor (maybe) depending on slider value. Or > put another value next to slider. > - Signal generator/voltage signal modifications: > - If possible, add other types of wave: sawtooth (a triangle wave with > 100% rise 0% fall), triangle, square and white noise. > - Symmetry, for square and triangle waves. > - For all voltage sources: warn if excess current/short circuit. > - Allow plotting of things like power dissipation through a resistor, > charge in a capacitor, joules in a capacitor, etc. > - Transformers. > - Relays. Model as an inductor, so we get back EMF. Switch is controlled > by current through inductor. > - Thyristors, TRIACS, and other needed semiconductor devices. > - For transistors, back-EMF shows warning. > > That's a long list of possible things to do, but I'd really like to > improve KTechLab because the other software I've come across is either > commercial /not open-source, or Windows-only, or slow / non-functional in > Wine or has significant analog bugs that affect me. It's also a first big, > open-source project that I've ever worked on, and great C(++) experience. > > I have noticed that in my SVN version LEDs and diodes do not work. Is this > (or was this) a problem with SVN a bit back? > > Tom > Teehee, you're working on half of my own wishlist! I posted that a little over a month ago.[1]
[1] http://sourceforge.net/mailarchive/forum.php?thread_name=4A1E478E.5090408%40penguindevelopment.org&forum_name=ktechlab-devel ------------------------------------------------------------------------------ _______________________________________________ Ktechlab-devel mailing list Ktechlab-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ktechlab-devel
