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A circuit simulator with graphical user interface (GUI)
Qucs is a circuit simulator with graphical user interface. The software aims to support all kinds of circuit simulation types, e.g. DC, AC, S-parameter, Transient, Noise and Harmonic Balance analysis. Pure digital simulations are also supported.
Schematic3d depicts analog circuits in three dimensional space. Third dimension for circuit element is added based on the voltage. It generates animation for transient simulation. (Values of voltages are taken from PSPICE software).
Qlogico is a digital circuit simulator.
True table, manipulation of boolean expresions, schematic capture and simulation, finite state machines, table of transitions, VHDL.
Virtual electronic circuit simulation with JAVA based schematic entry and wave viewer, based on (Berkeley) SPICE, for any OS/Server/Browser configuration.
Due to missing public feedback for over one year its status is set to INACTIVE (1/2004) - sorry.