Simetrix/simplis [hot] Jun 2026

A specialized engine that uses piecewise linear approximations instead of complex non-linear equations. It is optimized for switching power supplies and can run transient analyses 10–50x faster than SPICE . Key Analysis Capabilities

: As a part of or closely related to Simetrix, Simplis seems to be focused on simplifying the simulation process, possibly by offering pre-built models or intuitive interfaces for common system types. This could significantly reduce the time and effort required to set up and run simulations, making it easier for engineers to explore different design options and optimize system performance. simetrix/simplis

The combination of Simetrix and Simplis with Simulink offers several benefits: This could significantly reduce the time and effort

If you design switching power supplies professionally, SIMetrix/SIMPLIS is worth the cost and learning curve. Nothing else measures loop gain on a 1MHz buck converter with actual switching noise in under 30 seconds. For anything else, use LTspice. For anything else, use LTspice

: It features an advanced Newton-Raphson solver that is significantly faster and more stable than standard SPICE engines.