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Intusoft provides
a dedicated SPICE model library for power supply designers. It is the
first SPICE library to contain a comprehensive set of switch level models,
and in cases ultra-fast average models, for complex power ICs. Examples
include several manufacturers and types of: PWM and PFC, as well as
PFR, synchronous buck-boost controller, low dropout regulator, operational
amplifier, regulator, isolated feedback generator, power switch, wideband
differential amplifier, power amplifier, stereo headphone amplifier,
and several types of power discrete devices.
The library represents a major breakthrough for SMPS designers, also
including ultrafast average models with a very high degree accuracy.
Previous models were based almost exclusively on state space average
modeling technology, which does not account for many important nonlinear
effects. The library does include a unique ”unified” state
space PWM model which works for AC, DC, and transient analyses, in continuous
and discontinuous modes. The switch level models give designers the
ability to plug in a model representative of the IC, and simulate the
transient switching performance with an extreme level of accuracy. Some
models are created with multiple levels of complexity. This allows the
engineer to select the appropriate model features of interest and thus
control simulation efficiency. "Average" models, for example,
utilize analog behavioral elements, special Boolean logic elements unique
to Intusoft’s IsSpice4, and special analog HDL elements. Together
the model’s simulation runtime is greatly reduced, an important
factor in SMPS analysis.
The library also includes SPICE models for nonlinear magnetic cores,
inductors and transformers. The models are compatible with Intusoft’s
native analog and mixed-mode SPICE 3 based simulator (IsSpice4).
Power semiconductor
models for IGBTs, BJTs, MOSFETs, Diodes, UJTs, PUTs, SCRs, and Triacs,
included with all basic ICAP/4 packages, complement the models provided
in the Power Designer Library.
Library listing
for Power Models (Excel 2000 file
format) - Total count 1102
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Analyze
large signal effects like start-up transients, power stage semiconductor
stress, and step-load response
