Saturday, May 18, 2024

Simulate Your Circuits Using Qucs

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Available dataset items
Depending on the type of simulation the user performed you find the following types of items in the dataset:

 [stextbox id=”grey”]# node.V – DC voltage at node node
# name.I – DC current through
component name
# node.v – AC voltage at node node
# name.i – AC current through
component name
# node.vn – AC noise voltage at node
node
# name.in – AC noise current through
component name
# node.Vt – Transient voltage at node
node
# name.It – Transient current through
component name
# S[1,1] – S-parameter value[/stextbox]

Please note that all voltages and currents are peak values and all noise voltages are RMS values at 1Hz bandwidth.

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Depending on the type of graph, you have various options to choose for the graph. For a tabular graph, there is the number precision as well as type of number notation (important for complex values). Press the Ok button to close the dialogue.

In the tabular graph, as seen in , the value of the node voltage ‘divided.V’ is 0.5V. That is expected since the resistors are of equal values and the DC voltage source produces 1V.

Congratulations! You made your first successful simulation using Qucs.

License
Qucs is a free software released under the General Public License (GPL). It comes with complete source code. Every user of the program is allowed and called upon (on a voluntary basis of course) to modify it for their applications, as long as the changes are made public.

The screenshots show the main schematic and data display area of the Qucs GUI on the lower right corner, the menus and icons at the upper part and the project/contents/component/action/diagram selection on the left-hand side.

Download Latest version: click here


The author is a senior technical correspondent at EFY. This article has inputs from Qucs’ recently released documentation

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