Electronic Circuits Software: Design, Simulation, Testing

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Circuit Magic		Circuit Magic is an electrical circuits simulation program specifically designed for students teaching basics electronics, electrical laws & circuit theory. Unlike many electronic circuit analyzers, Circuit Magic can analyze circuits like a man. Circuits are simulated step by step, using natural solving strategy.
Circuit simulator FREE		Circuit simulator is a computer program predicting the behavior of a real circuit. It replaces real components with idealized electrical models. Since the result can never take into account all physical processes in the parts and all PCB parasitics, the simulation will only reflect the model that is put into it.
FreePCB FREE		FreePCB is a free, open-source PCB editor for Microsoft Windows, released under the GNU General Public License. It was designed to be easy to learn and easy to use, yet capable of professional-quality work.
Mentor Graphics		Mentor Graphics offers a complete suite of high-speed PCB electronic circuit simulation software: signal integrity, power integrity, analog simulation, pcb thermal analysis, EMI/EMC design analysis.
OptiSPICE		OptiSPICE is a circuit design software for analysis of integrated circuits including interactions of optical and electronic components. It allows for the design and simulation of opto-electronic circuits at the transistor level, from laser drivers to transimpedance amplifiers, optical interconnects and electronic equalizers.
OrCAD		OrCAD PCB design technologies comprise a complete, cost-effective PCB design solution, from design capture to final output. To successfully meet project goals, PCB designers and electrical engineers need powerful, intuitive, and integrated technologies that work seamlessly across the entire PCB design flow.
PCB Artist FREE		PCB Artist is a user friendly, fully integrated, schematics capture & PCB layout tool that you will find easy to use.
SmartDraw		Create electrical circuit diagrams, schematics, and more in minutes with SmartDraw.
Solve Elec		With Solve Elec you can: draw and analyze electrical circuits functioning in direct or alternating current; get literal formulas and values for current intensities and voltages defined in the circuit; verify circuit related equations; draw graphs; get the equivalent circuit of displayed circuit; browse an integrated documentation; edit, save and print reports made of various elements displayed in main window.
TINA Design		TINA Design Suite is a powerful yet affordable circuit simulation and PCB design software package for analyzing, designing, and real time testing of analog, digital, VHDL, MCU, and mixed electronic circuits and their PCB layouts.
TransistorAmp FREE		With TransistorAmp you are able to create your individual transistor amplifier with a few mouse clicks.
VisualSpice		VisualSpice is a completely integrated 32-bit analog, digital, mixed signal schematic design and circuit simulation program. VisualSpice allows you to quickly and easily capture your schematic designs, perform your simulation, and analyze the results using our powerful signal processor and waveform viewer.
XCircuit FREE		XCircuit is a program for drawing publishable-quality electrical circuit schematic diagrams and related figures, and produce circuit netlists through schematic capture.