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A Cross Platform and Open Source Electronics Design Automation Suite.
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LTspiceยฎ is a high performance SPICE simulation software, schematic capture and waveform viewer with enhancements and models for easing the simulation of analog circuits.
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Qucs, briefly for Quite Universal Circuit Simulator, is an integrated circuit simulator which means you are able to setup a circuit with a graphical user interface (GUI) and simulate the large-signal, small-signal and noise behaviour of the circuit.
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Proteus - Proteus is a great electrical suite for circuit simulation purposes. You can simulate a single processor or multiple ones at the same time. The application is a great alternative for Virtual System Modelling.
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Animated electronic circuit simulator using ideal components to visualize voltage and current.
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OpenModelica โ A Free Modelica Environment!
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OrCAD PSpice technology provides the best, high-performance circuit simulation to analyze and refine your circuits, components, and parameters before committing to layout and fabrication.
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All about General Public License (GPL) and Electronic Design Automation (EDA) software tools.
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It is a circuit simulator on a virtual breadboard.
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SDC Verifier is an all-in-one software solution for structural design, FEA analysis, and verification according to design codes and standards. SDC Verifier can be used independently or as an extension to Ansys Mechanical, Femap, and Simcenter 3D. .
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PCBWeb is a 100% free Windows desktop CAD application for designing and manufacturing electronics...
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Solve Elec is a free educational program to draw and analyze electrical circuits.
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Help building prototypes on so called breadboards easily.
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oregano - An electrical engineering tool for GNOME.
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- Design circuits quickly and easily with a modern and intuitive user interface with drag-and-drop...
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Electronic circuit simulation for the Mac, support and downloads site.
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Ngspice is a mixed-level/mixed-signal circuit simulator.
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Its advanced simulation engine can handle both analog and digital circuits and features realtime...
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Mixed Mode Simulation.
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PCB Wizard 3 is a powerful package for designing single-sided and double-sided PCBs.