PLECS 4.0.5 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The following versions: 4.0, 3.7 and 3.3 are the most frequently downloaded ones by the program users.
This software is a product of Plexim. We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. The program lies within Photo & Graphics Tools, more precisely 3D Design. You can run this PC program on Windows 7/8/10/11 64-bit. PLECS.exe is the default file name to indicate this program's installer.
From the developer:
PLECS facilitates the modeling and simulation of complete systems, including power sources, power converters, and loads. Included with PLECS is a comprehensive component library, which covers the electrical, as well as the magnetic, thermal, and mechanical aspects of power conversion systems and their controls. Power electronics circuits are captured with a schematic editor in a way that is familiar and intuitive for electrical engineers.
You may want to check out more software, such as Caddie, Silo or Ez-Architect, which might be similar to PLECS.