High-Speed Simulation for Switched Power Electronic Systems
DSIM is a simulation platform built on Discrete-State Event-Driven (DSED) technology, 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, while also maintaining high accuracy.
How DSIM Works
DSIM is built on two foundational innovations that together deliver unprecedented simulation performance for power electronics.
DSED Theory
State-discretization, event-driven variable-step simulation — fast and highly accurate.
PAT Model
Piecewise analytical switching transients — strong convergence, parameters from datasheet, fast computation.
Everything You Need to Design with Confidence
A complete simulation environment built for power electronics engineers.
High Simulation Speed
DSIM’s DSED approach can dramatically reduce simulation time for switched power electronic circuits.
Physical Accuracy
Physical semiconductor models — not ideal switches. Capture switching transients with high accuracy.
Thermal Coupling
Electro-thermal co-simulation with accurate loss model. See junction temperatures in real-time.
Massive Scale
Simulate topologies with hundreds of active switches without convergence issues.
DSIM API
DSIM provides MATLAB API, C/C++ API, and Python API, enabling seamless integration with existing design and analysis workflows.
Deep Analysis
Waveforms, FFT, loss breakdown, efficiency analysis, and parametric sweeps in one workspace.
Extensive Element Library. Growing Every Release.
DSIM provides 350+ elements, covering power switches, motors, transformers, renewable energy, mechanical elements, as well as logical elements and control.
Every model includes manufacturer-validated parameters for switching loss, conduction loss, and thermal impedance. Create behavioral models with C blocks.
Fits Your Engineering Workflow
DSIM connects to the tools and processes your team already uses.
DSIM API (Python)
AvailableFull simulation control from Python. Integrates with mainstream AI frameworks for AI-driven power electronics design.
DSIM API (MATLAB)
AvailableAPI functions accessible through MATLAB, covering circuit modification, simulation control, and data post-processing.
DSIM API (C/C++)
AvailableInterface functions for parameter design, multi-scenario testing, and integration of custom features.
Co-Simulation
AvailableThe Cosim Module provides interface for co-simulation between DSIM and MATLAB/Simulink, utilizing the complementary capabilities of both platforms.
Custom C Blocks
AvailableEmbed custom C code for control algorithms and behavioral models.
Experience DSIM for Yourself
Schedule a personalized demo and see how DSIM can accelerate your power electronics design workflow.