M. Riva (Italy)
Power electronics simulation, discrete-time sampled data
models, switched networks computer-aided modeling.
Small signal linear models are widely applied for design
and control optimization of power electronic circuits. A
wise substitution of non-linear time-variant circuits with
linear models simplifies the computational burden due to
the difficulties of performing accurate dynamic analysis
of switched circuits. Furthermore, if the substitution is
performed automatically the design speed can be
This paper deals with FREDOMSIM, a software tool able
to support the automatic extraction of small signal models
for power electronics applications. The theoretical bases,
operating principles, and modeling trade-offs of this
program are illustrated and its effectiveness is shown
through an example of application to a DC/DC converter.
Integration with commercial packages such as SPICE,
MATLAB/SIMULINK provides a complete modeling
environment easy to approach for a designer.