Qucs simulate tutorial4/11/2024 ![]() The software is available for a variety of operating systems including GNU/Linux Windows FreeBSD MacOS NetBSD Solaris On the homepage you ll find the source code to build and install the software. Also links for binary packages for certain distributions (e.g. Once the software has been successfully installed on your system you can start it by issuing the # qucs command or by clicking the appropriate icon on your start menu or desktop. So depending on your system s language settings the Qucs graphical user interface (GUI) appears in different languages. 1ģ Figure 1: Qucs has been started On the left hand side you find the Projects folder opened. Usually the projects folder will be empty if you use Qucs for the first time. The large area on the right hand side is the schematic area. Above you can find the menu bar and the toolbars. In the File Application Settings menu the user can configure the language and appearance of Qucs. 2Ĥ Figure 2: Application setting dialog To take effect of the language and font settings the application must be closed either via the Ctrl + Q shortcut or the File Exit menu entry. Tool suite Qucs consists of several standalone programs interacting with each other through the GUI. There are the GUI itself, The GUI is used to create schematics, setup simulations, display simulation results, writing VHDL code, etc. the backend analogue simulator, The analogue simulator is a command line program which is run by the GUI in order to simulate the schematic which you previously setup. It takes a netlist, checks it for errors, performs the required simulation actions and finally produces a dataset. a filter synthesis application, The program can be used to design various types of filters.Ī simple text editor, The text editor is used to display netlists and simulation logging informations, also to edit files included by certain components (e.g. ![]() a transmission line calculator, The transmission line calculator can be used to design and analyze different types of transmission lines (e.g. 3ĥ a component library, The component library manager holds models for real life devices (e.g. an attenuator synthesis application, The program can be used to design various types of passive attenuators. a command line conversion program The conversion tool is used by the GUI to import and export datasets, netlists and schematics from and to other CAD/EDA software. The supported file formats as well as usage information can be found on the manpage of qucsconv. Additionally the GUI steers other EDA tools. For digital simulations (via VHDL) the program FreeHDL (see is used. And for circuit optimizations ASCO (see is configured and run. Setting up schematics The following sections will enable the user to setup some simple schematics. For this we first create a new project named WorkBook. Either press the New button above the projects folder or use the menu entry Project New Project and enter the new project name. Figure 3: New project dialog Confirm the dialog by pressing the Create button.
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