Created attachment 784567 [details] Diagram using ohm units Description of problem: I do a circuit simulation with resistors, dependent and independent current sources. I perform two identical diagrams, but one use siemens and the other one use ohms. I compute correct conversions between siemens and ohms. The problem is I'm getting different voltage values to the same nodes. Version-Release number of selected component (if applicable): 0.0.17 How reproducible: Create diagrams like attached Steps to Reproduce: 1. Use dependent and independent current sources and resistors in ohms and siemens 2. 3. Actual results: I'm getting different voltage values to the same electrical devices Expected results: Getting the same voltage node values Additional info: See attachments
Created attachment 784568 [details] Diagram using siemens units It gives INCORRECT voltage values. The correct are given using resistors with ohm units
Hello Brallan. AFAIK Qucs never supported conductance and Siemens units. I see you set the resistivity as R = 4S, etc. But that's an invalid input. First of all, the conductance is well known to be marked as G, not R. And the next thing is the field description. It clearly says : 'ohmic resistance in Ohms'. What might be considered a bit confusing is that you get no warning about the invalid input. It simply ignores the appended unit and takes only the numeric part. I believe there should be validity checks added to the functions processing the input fields. Please, let me know what you think. Regards, Jaromir.
In Qucs' getstarted tutorial, page 15 appear same you commented before (I had not seen :s), but also 'Allowed property values' where include siemens. Sorry, but is a little confusing :)
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