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Quite Universal Circuit Simulator – Qucs

An integrated circuit simulator. Sketch the circuit and simulate the large-signal, small-signal and noise behavior of the circuit. After that simulation has finished you can generate and display the simulation results on the presentation output page.

Quite Universal Circuit Simulator – Qucs

The Qucs GUI is well advanced and allows setting up schematics and presenting simulation results in various types of diagrams. DC, AC, S-parameter, noise and transient analysis is possible, mathematical equations and use of a subcircuit hierarchy (with parameterised subcircuits) are available. Qucs can also import existing SPICE models for use in your simulations.

Quite Universal Circuit Simulator - Qucs

EDA and Technical Software Components

  • ADMS — Verilog-A translator
  • ps2sp.pl — A SPICE preprocessor
  • ASCO (A SPICE Circuit Optimizer)
  • FreeHDL — for VHDL digital simulations
  • Icarus Verilog — for Verilog-HDL digital simulations
  • GNU Octave — for Octave interactive interface
GNU Octave is a high-level interpreted language, primarily intended for numerical computations. It provides capabilities for the numerical solution of linear and nonlinear problems, and for performing other numerical experiments. It also provides extensive graphics capabilities for data visualization and manipulation.

Imagineering On-line Magazine

“Some people collect stamps, coins or baseball cards, I collect electronic circuit schematics. I own several book shelves and file cabinets full of electronic circuit books, IC application manuals and circuit encyclopedias. I often use my collection for reference.”

Imagineering On-line Magazine

David A. Johnson, – P.E. consulting electronics engineer.

(This resource by dave is very important for Electronic Enthusiasts, Engineers and R&D Engineers. I say this as an R&D Professional with more than 20 years off the ground)

Capacitance Proimity Switch Technology -The Design Corner, Imagineering E-Zine

Capacitance Proimity Switch Technology -The Design Corner, Imagineering E-Zine

“These switch circuits used a sensitive high impedance circuit to detect the small AC power line signals, picked up by the human body from nearby appliances.”

(These are the type of technologies that lead to the Touch Screens on Tablets and Phones.