About

This application is mainly a circuit simulator that has evolved out of the project Qucs (spoken as kjuks), but isn’t compatible with it. Many things have been completely reworked. It’s meant as a development environment for electrical engineers (graphical user interface, circuit simulator, PCB layouting, numerical data processing etc.), which can compete even with professional products. The application uses Qt4® by the Qt Company® as graphical user interface.

QucsStudio and uSimmics are free programs. Please read the legal section for details.

Support

In order to keep the development alive, this project needs the support of its users, e.g. with:

  • Sponsors (Companies, institutes and universities can pay for technical support, tutorial videos, new features etc.)
  • make a donation
  • help other users in the forum
  • bug reports, test results, documentation etc.

Programmers can help, for example, with the following tasks:

  • Create component libraries of the well-known companies
  • Programming extensions like filter synthesis, importing files (Gerber, STEP files, KiCAD, pcbmodelgen …)
  • EM simulation core for the method of moments, e.g. basing on GLMoM, Puma-EM or Scuff-EM
  • (Complex) examples for circuit optimization.
  • Improving the microstrip, stripline and coplanar models
  • Extending the functionality of the VerilogA interface or use OpenVAF
  • Creating new components in C/C++ or VerilogA. This task also includes test circuits that show the correct behaviour and references to publications about the used models.
    Examples for such components are:
    • different transformers (with magnetic core, for 3-phases, with complex transfer function, Laplace)
    • tubes
    • varactors
    • different MOSFET models
    • CMC models
  • Verification of integrated components and simulations, e.g. by testing with other circuit simulators, perhaps also with speed comparison.

Citation

Everybody who uses this software for a publication is kindly asked to cite the software as follows.

BibTex:

@ELECTRONIC{uSimmics,
  author = {Michael Margraf},
  title = {uSimmics – A Free and Powerful Circuit Simulator (formerly known as QucsStudio)},
  url = {https://qucsstudio.de}
}

References

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