![]() Obviously this can also be achieved by adding another resistor to the circuit, but the addition of this function, even if a different approach is followed, will result in a more complete simulator. In the "real" components in which the internal resistance would result in a series with its other parameters, it was directly introduced to those components. The netlist was altered so a resistance was added in parallel to the necessary components, with the example of the ammeter, to mimic a "real" component. To clarify, in its current state, the Wave(Temporal) diagram does not display multiple frequencies at once. With all the added modules on #682 being targeted towards engineering/electronics students, one of the main objectives was to simplifiy the usage of the simulator, as such, the ability to choose the desired frequencies for the phasor diagram is a great improvement, keeping this philosophy in mind. I am more concerned about the issue of internal resistance additional resistance type of things (did not yet check if that is indeed a problem).Īs of now it seems that the above PR needs a bit more work. I have something working and will push it shortly. To help us see the side effects, not to lock the things as is. The main motivation for me on qucs-test was really this. We should be fully aware of the consequences of breaking compatibility at all times, and work on our favor to help people move forward and minimize regressions and breakage on the user side. We can argue that so far we only had patch releases, right? ? For this reason people use major, minor and patch releases to make it clear what is going on. I guess is ok to break compatibility at some point (things have to evolve). It is very useful stuff, but I fear that merging it unaware of the consequences it will frustrate users and push the burden of fixing stuff back to us. (off-topic, but) This was one of the main reasons I cautiously opposed from merging the Qucs-S stuff. As a fallback, the Save As should enable to save for an earlier version. When the user save the file with new stuff, inform that this version is not backward compatible. One way to handle it for now is add graceful degradation mechanism. The current "parser" will just choke at any unknown thing. sch syntax (add new stuff) without breaking backward compatibility. ![]() Right now it is is impossible (or very hard) to expand the. The phasor code needs to go to phasor.cpp, waveac needs to go to waveac.cpp Such things were already in use there, needs refactor, but not in this pass. if(Diag->Name = "Phasor" || Diag->Name = "Waveac"). phasor diagram display a list of frequency points, see Replaced QLineedit by QComboBox for frequency input (for phasor and AC temporal diagram dialogs) #723 for initial attempt.Remove Hz from the Phasor list of frequencies, see above. update docs to reflect that phasordiagram modify the signature, append the selected frequency.Similarly an unknown Paintings need such thing. Implement now a similar fallback mechanis we have for unknown components, allow to skip unknown diagrams on load. Concerning AC Phasorial diagram, Unknown diagram. What about iprobe, vprobe? Shall we "upgrade" them to have internal resistance? No, decided to keep them ideal. If the user is looking for more information it might make sense to pay the price of an extra node. Here again, instead of 4 nodes, 5 nodes will be required. Same thing, pass Riv, Rvv to the wprobe and let it takes care of setting the resistors. Remove netlist hacking for internal resistances of wattmeter, also Netlist fix #720. If the user wants, just add the Ri manually. So, instead of 2 nodes for each vdc, it will now need 3. The issue is that for a series resistor the vdc needs to allocate an internal node to add the resistor, even if Ri=0. The right way to do it would be to pass the Ri parameter and the component sets up the series or parallel resitor. Revert addition of internal resistance for vdc, vac, idc, iac, iprobe, vprobe Remove netlist hacking to implement internal resistance, Netlist fix #720. fix virtual void initDC2 (void) //only used in ohmmeter.cpp.The dc/trsolver can set the state for ohmmeter and the special cases can be handled inside the ohmmeter::initDC I would like to know if it's possible to create an equation based device using phasor quantities in QUCS for the purpose of AC analysis.In qucs-core/scr/circuit.h remove unneeded virtual functions. $$-G = -\frac\right)$$īut there are some properties of the magnetron nonlinearity I'd like to include. Simulate this circuit – Schematic created using CircuitLab Traditionally a magnetron is modeled the same as many oscillators, with a parallel RLC circuit attached to a negative nonlinear conductance. ![]() I am only interested in the output of the magnetron, not how it is powered. I'm trying to model a magnetron oscillator source in QUCS.
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