Quite Universal Circuit Simulator (QUCS) is a free circuit simulator that allows students, engineers and any other users to easily design analog/digital systems before building a prototype.

QUCS is still in alpha release but it has enough features to get you started. With QUCS you can setup a circuit via an easy to use GUI to simulate large/small signals (DC, AC, S-parameter) and noise behaviors of the circuit.

The GUI also allows to set up schematics simulation with support of various types of diagrams. Here are some features of QUCS:
  • DC/AC/ S-parameter Simulation
  • Harmonic Balance Analysis
  • Noise Analysis
  • Transient Analysis
  • Schematic Editor
  • Import SPICE Models
  • Various Models and Components (HICUM, BSIM2, BSIM3, OpAmps, Diodes, MOSFETs, PMOSFETs), etc.
For more information about Quite Universal Circuit Simulator, click here.

Quite Universal Circuit Simulator Installtion

To install Quite Universal Circuit Simulator under Ubuntu 14.10/14.04 or older, run these commands:

sudo add-apt-repository -y ppa:qucs/qucs 
sudo apt-get update 
sudo apt-get install  qucs

For Linux Mint 17.1 or older, you can install QUCS using these commands under 64-bit platforms:

cd /tmp 
wget http://goo.gl/soJoHU -O qucs_amd64.deb 
sudo dpkg -i --force-depends qucs_amd64.deb 
sudo apt-get -f install

For 32-bit platforms, enter these commands:

cd /tmp 
wget http://goo.gl/c5MpRT -O qucs_i386.deb 
sudo dpkg -i --force-depends qucs_i386.deb 
sudo apt-get -f install

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