What's New in Version 9.4

SIMetrix and SIMetrix/SIMPLIS can now be programmed using the Python programming language. The schematic editor, waveform viewer and data handling systems can all be accessed using dedicated object-oriented classes and methods. Both SIMetrix and SIMPLIS simulators may be launched using the same functions with measurement data readily accessible.

A new built-in Python text editor is included which includes syntax highlighting, syntax checking, method completion and popup documentation.

Note that Python must be installed separately. Versions 3.12, 3.13 and 3.14 are currently supported.

Available with all versions. More information:

Pre-POP Transient Analysis

An optional Pre-POP Transient analysis is added as a subtask of the Periodic Operating Point (POP) analysis. The Pre-POP Transient analysis, if enabled, is the first subtask to be run in the POP analysis. The Pre-POP Transient analysis stops when either it has reached the specified stop time or when the logic output of a certain triggering gate has registered a 0-to-1 transition. After the Pre-POP Transient analysis has finished, the simulation of the “N cycles before launching POP” is run next, then followed by the core POP process. The Pre-POP Transient analysis is useful for complex systems requiring extensive initialization of large number of energy-storage elements and sequential logic circuits, allowing the core POP process to be launched only after the system has settled to a reasonable starting point.

In addition, if the Pre-POP Transient analysis is enabled, the POP analysis now supports automatic resetting of the “Maximum period” parameter according to the switching periods observed by the POP trigger during the Pre-POP Transient analysis.

Available with all versions

LISN Updates

The SIMPLIS LISN device can now take noise measurements similar to those of an EMI detector defined by the CISPR16.1 standard. In addition to the FFT of the total conducted EMI voltage waveform that was available previously, the user can now select to also show peak, quasi-peak, and/or average EMI measurements. These curves, calculated after the simulation is finished and giving results analogous to passing the LISN's total conducted EMI voltage waveform through an EMI detector, are overlaid on the same graph as the FFT and can therefore be easily compared to noise limits defined in various EMI standards.

Available with all versions