Free Electronics Design Software

Introduction to Free Electronics Design Software

If you are a student or a electronics hobbyist who does not need to have complicated electronics design software to help you in your design work, it is strongly recommended that you consider the following free electronics design software that can be downloaded. There are some software which allow you to use for 30 days or so before you decide to purchase them. However, if you can live with limited feature, you can get a free download without having to pay for a full feature software.

Among some of the free electronics design software that can be downloaded are free pcb software, circuit analysis software and electromagnetic planar structure analysis software.

EAGLE PCB Layout Editor Software

The EAGLE Layout Editor is a free PCB software (see the conditions) which is easy to use, yet powerful tool for designing printed circuit boards
(PCBs). The name EAGLE stands for Easily Applicable Graphical Layout Editor. It has 3 main modules which consists of schematic editor, layout editor and autorouter.

Express PCB PCB Layout Editor Software

The ExpressPCB schematic and PCB design software is very quick to learn and completely free! Download a fully functional version here.

5Spice Analog Circuit Simulation Software

5Spice is a graphical user interface
software that offers easy to use analog circuit simulation for the electronic circuit designer. 5Spice provides the analysis capabilities needed by experienced circuit designers while remaining easy to use. The focus is on analog circuit analysis and circuit design at the component level.

FiltersCAD Software For Designing Filters

FiltersCAD is a comprehensive PC based
filter synthesis software package that provides active circuit synthesis.

Convert Your PC Into A Dual Trace Oscilloscope

Convert your PC
into a dual-trace storage oscilloscope and spectrum analyzer. It uses your computer's sound card as analog-to-digital converter, presenting a real-time waveform or spectrum of the signal - which can be music, speech, or output from an electronic circuit.

Spice III simulator from Linear Technology

SwitcherCAD™ III is a high performance Spice III simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators.

Sonnet Lite EM analysis Software

Sonnet Lite is a free feature-limited version of Sonnet's professional Sonnet Suite, which provides Electromagnetic analysis that is able to analyse predominantly planar high-frequency designs from 1 MHz through several THz. PCB trace crosstalk analysis, Microstrip matching networks
and Microwave circuit discontinuities amongst others can also be analysed.

Multilayer Air Core Inductor Calculator

Calculate the number of turns, DC resistance and other inductor data based on the input data of the inductance, coil inner diameter, coil length and wire gauge.

Resistor Color Code Interpreter

Enter the color codes
of the resistor and you will get its resistance. This calculator also shows the equivalent values of 2 resistors that are connected in parallel and in series.



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