AMD Xilinx Vivado
Vivado is a software for synthesis and analysis of hardware description language (HDL) designs with additional features for system on a chip development and high-level synthesis.
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Autodesk software
Autodesk Education Community offers a wide range of 2D and 3D vector design software.
Labcenter Electronics Proteus
Proteus is a software tool suite used primarily for electronic design automation.
PLECS
simulation platform for Power Electronic Systems. PLECS tools can be applied to many disciplines of power electronics engineering.