Version History
Current Version: v2021b – November 29, 2021
NEW
Switching transient simulation for the entire circuit
Previously, DSIM analyzed switching transient of a converter with the transient confined within the converter for maximum speed performance. Now, DSIM offers the new option of simulating switching transient together with the external circuit for maximum accuracy. With this feature, it is possible to perform EMI simulation, for example.
New AC sweep function
AC analysis is often timing consuming. The process is significantly speeded up by DSIM’s fast simulation.
Support of DLL blocks
Custom C code can be compiled into a DLL, and the DLL loaded by DSIM for simulation.
Automatic conversion of comparator-based PWM
Comparator-based PWM is now supported.
Automatic discretization of s-domain blocks
The s-domain block is automatically discretized.
Many new elements and examples
Over 50 new elements are added and over 20 new examples are added.
v2021a – April 20, 2021
NEW
Stiff Solver
A new solver called BDSED is added. This solver is more efficient in solving stiff circuits that have small time constants (for example, due to parasitic inductances in the range of nH and parasitic capacitances in the range of pF).
Device Database
Physical IGBT and SiC MOSFET devices used in DSIM simulation are now defined in a device database. The Device Database Editor can be used to conveniently add a new device or manage existing devices.
Power loss calculation
In addition to the switching transients, the conduction and switching losses, as well as the junction temperature, of physical IGBT and SiC MOSFET devices can be calculated.
Discrete switches
Previously only switch converter modules were supported. Now, discrete (single) diode, IGBT, and SiC MOSFET switches can be used to build arbitrary converter circuits.
Synchronous machine
A synchronous machine model with external excitation is added.
New power elements
Several power elements are supported, including coupled inductors and transformers.
New control elements
Several control elements are supported, including integrators, filters, PID block, and ZOH block.
New sources
Several voltage and current sources are supported.
REVISIONS
User interface
For the DSIM only version, the graphic user interface of the schematic editor and the waveform display program are improved with simpler and more modern look.
v2020a – June 19, 2020
NEW
Link to DSIM
DSIM is a new simulation engine for large-scale power converter systems. With a groundbreaking simulation algorithm and modeling approach, DSIM achieves an unprecedented and unparalleled performance.
DSIM is seamlessly integrated into the PSIM simulation environment. It is available as a cost-added option by itself or in combination with the PSIM engine.