High-Speed Simulation for Switched Power Electronic Systems
DSIM is a simulation platform built on a discrete-state, event-driven approach designed for systems with many switches, high switching frequencies, and widely separated time scales. It is engineered to reduce simulation time and support faster engineering iteration.
How DSIM Works
Conventional simulators step through time at fixed intervals \u2014 wasting compute on moments where nothing changes. DSIM computes only at switching events, achieving the same physical accuracy in a fraction of the time.
- Computes only at state transitions — skips empty intervals
- No convergence issues — designed for robust, stable solutions
- Physical semiconductor models, not ideal switch approximations
- Scales linearly with circuit complexity
Everything You Need to Design with Confidence
A complete simulation environment built for power electronics engineers.
Designed for Speed
DSIM’s event-driven approach can dramatically reduce simulation time for switched power electronic circuits.
Physical Accuracy
Real semiconductor models — not ideal switches. Capture switching transients with high time resolution.
Thermal Coupling
Electro-thermal co-simulation with manufacturer loss data. See junction temperatures in real-time.
Massive Scale
Simulate topologies with hundreds of active switches without convergence failures.
Python API
Script simulations, automate sweeps, and integrate into CI/CD pipelines with native Python.
Deep Analysis
Waveforms, FFT, loss breakdown, efficiency maps, and parametric sweeps in one workspace.
Extensive Device Library. Growing Every Release.
From silicon IGBTs to wide-bandgap SiC and GaN devices \u2014 all with physical switching characteristics, not ideal approximations.
Every model includes manufacturer-validated parameters for switching loss, conduction loss, and thermal impedance. Import custom SPICE models or create behavioral models with C blocks.
Fits Your Engineering Workflow
DSIM connects to the tools and processes your team already uses.
Python Scripting
AvailableFull simulation API for automation, optimization, and batch processing.
FMI / Co-Simulation
AvailableConnect with mechanical, thermal, and control models via FMU import/export.
Custom C Blocks
AvailableEmbed custom C code for control algorithms and behavioral models.
MATLAB/Simulink Co-Simulation
AvailableBidirectional data exchange with MATLAB and Simulink workspaces.
Experience DSIM for Yourself
Schedule a personalized demo and see how DSIM can accelerate your power electronics design workflow.