Cadence Pspice A D Circuit Simulation-PDF Free Download

CADENCE PSPICE A D CIRCUIT SIMULATION

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circuit simulation and verification solution. It meets the changing simulation needs of designers as they progress through the design cycle, from circuit exploration to design development and verification. Used in conjunction with PSpice A/D, PSpice Advanced Analysis helps designers improve yield and reliability. Cadence PSpice simulation



schematic including node voltages device
power calculations and pin subcircuit
Mixed signal designs can also be verified
where the analog portions have digital
content embedded along with setup hold
times Integrated analog and event driven
digital simulations mean improved speed
without loss of accuracy Digital functions
support 5 logic levels and 64 strengths
load dependent delays and hazard race
checking PSpice simulation also features
propagation modeling for digital gates
and constraint checking such as setup
and hold timing violations
RESULTS AND DATA DISPLAY
PSpice Probe enables designers to make
complex measurements cross probe
and view waveforms in multiple plots
and allows the choice of an expanded
set of mathematical functions to apply
to simulation output variables Designers
can create plot window templates
Figure 1 PSpice technology provides a complete simulation environment including simulation waveform
analysis with cross probing and bias results display on the schematic and use them to easily make complex
measurements by simply placing markers
directly on the desired pins nets and
Multi vendor models built in With PSpice technology engineers can
parts in the schematic Probe also enables
mathematical functions and behavioral analyze and explore circuit performance
the measurement of performance
modeling techniques enable an efficient and functional relationships with what
characteristics of a circuit using built in
simulation process if scenarios and simulate complex
functions and the creation of custom
mixed signal designs These designs can
Magnetic Parts Editor automates the measurements For data displays
contain both analog and digital parts
design of inductors and transformers to additional capabilities allow plotting of
supporting models like IGBTs pulse
reduce time and errors both real and complex functions of circuit
width modulators DACs and ADCs
voltage current and power consumption
Single button simulation cross probing Engineers can also design and simulate
including Bod plots for gain and phase
and full integration with OrCAD electro mechanical body electronics and
margin and derivatives for small signal
Capture improve productivity and data hydraulic designs using behavioral models
characteristics
integrity and integration with MATLAB s Simulink
product via SLPS Simulink PSpice links MODELS
FEATURES Along with numerous vendor models
SIMULATION
PSpice simulation technology is capable and model libraries available online the
PSpice technology ensures functional
of simulating a wide range of designs and PSpice model library offers more than
correctness of PCB designs by verifying
design elements including power supplies 30 000 analog and mixed signal models
the analog portions for node voltages
filters amplifiers digital decoding logic This library includes more than 4 500
branch currents and device power
using gates PWMs transistors MOSFETs parameterized models for BJTs JFETs
Complex measurements can be created
non linear magnetic cores varistors MOSFETs IGBTs SCRs magnetic cores
and viewed as the simulation progresses
zeners and diodes PSpice Probe simplifies and toroids power diodes and bridges
Support is provided for multiple
viewing of simulation results both operational amplifiers optocouplers
simulation profiles that enable the recall
analog and digital by having a single regulators PWM controllers multipliers
and execution of different simulations
display for the mixed signal analysis timers and sample and holds Also
on the same schematic Simulation bias
results while retaining the same time axis included are a large variety of accurate
results can be viewed directly on the
internal models many of which
www cadence com CADENCE PSPICE A D CIRCUIT SIMULATION 2
intelligently relax one or more parameters
to achieve convergence Designers can
add assertions to detect failure or warning
conditions as the simulation progresses
and hence need not wait for complete
simulations to detect error conditions
Simulation profiles allow binding of
models and stimulus to enable simulation
of different test conditions using same
schematic and users can also queue up
simulations for overnight results
FRONT END INTEGRATION
PSpice technology is fully integrated
with Cadence OrCAD Capture CIS and
Allegro Design Entry HDL allowing for
excellent cross probing between the
schematic and plot measurements
ADVANCED ANALYSIS
The PSpice Advanced Analysis Option is
used in conjunction with PSpice A D to
Figure 2 Use Checkpoint Restart to accelerate verification of late stabilizing circuits
improve design performance yield and
include temperature effects that PSpice model IP can be protected using reliability Capabilities such as temperature
add flexibility to simulations A device the encryption feature which allows and stress analysis electro mechanical
equations developer s kit DEDK allows simulation models to be encrypted simulation worst case analysis
implementation of new internal model using the 56 bit DES algorithm Finally Monte Carlo analysis and automatic
equations the Magnetic Parts Editor allows rapid performance optimization algorithms
prototyping of transformers relays and improve design quality and maximize
Behavior modeling though functional circuit performance automatically PSpice
coils in an automated manner using
blocks are described using mathematical A D also allows
electrical specifications
expressions and functions which for the design and generation of
allows designers to leverage a full set EASE AND SPEED simulation models for transformers and
of mathematical operators nonlinear DC inductors
functions and filters Circuit behavior The PSpice CheckPoint Restart feature
enables designers to stop and restart
can be defined in the time or frequency SENSITIVITY
domain by formula including Laplace and to generate checkpoints at specified
points in time of a simulation and then Sensitivity analysis identifies which
transforms or by look up tables and error component parameters are critical to the
and warning messages can be specified in restart the simulation from a specific
checkpoint Thus not only can simulations circuit performance goals It examines
different conditions how much each component affects circuit
be restarted to account for any changes
An integrated Model Editor provides but they can be run from only a range behavior by itself and in comparison
an easy way to create models using of interest instead of running the entire with the other components by varying
device characteristic curves An intuitive simulation again from the start tolerances to create worst case minimum
stimulus creation capability makes it easy and maximum values Sensitivity analysis
to create a variety of simulation stimuli With AutoConvergence designers can can also be used to identify which
Any shape stimulus can be created with suggest relaxed values for specific components affect yield the most then
built in functions and can be described parameters that can be used by the tolerances of sensitive components can be
parametrically or freehand with the PSpice simulation engine to achieve tightened and tolerances of non sensitive
mouse to draw piece wise linear PWL convergence If the simulation does not components loosened This information
signals Digital stimuli can be used for converge with predefined simulator can be used to evaluate yield versus cost
signals clocks and buses options the simulation engine will tradeoffs
www cadence com CADENCE PSPICE A D CIRCUIT SIMULATION 3
PARAMETRIC PLOTTER
The Parametric Plotter enables
sweeping of multiple parameters once a
simulated circuit has been created It
also provides an efficient way to analyze
sweep results sweep any number of
design and model parameters in any
combination and view results in PPlot
Probe in tabular or plot form
ORCAD PCB FLOW
INTEGRATION
The PSpice simulator integrates seamlessly
with OrCAD Capture allowing you to use
the same schematic for both simulation
and PCB layout which reduces rework
and errors The integration also allows for
easy setup and simulation runs as well
as cross probing of simulation results
Figure 3 Monte Carlo analysis predicts the behavior of a circuit statistically when part values are varied
within their tolerance range
The hierarchical netlister with parametric
subcircuits expedites the netlisting
OPTIMIZER MONTE CARLO of complex hierarchical designs The
Magnetic Parts Editor helps designers
Optimizer analyzes analog circuits and Monte Carlo analysis predicts the behavior
build transformers for power supplies
systems fine tuning designs faster than of a circuit statistically when part values
trial and error bench testing It helps are varied within their tolerance range It
find the best component values to meet also calculates yield which can be used INTEGRATION WITH
the performance goals and constraints for mass manufacturing predictions With MATLAB SIMULINK
A specification can be as simple as an history stored in a separate file model PSpice integration with MathWorks
output voltage maximum it can be a parameter values can be used for each MATLAB Simulink SLPS combines
more complex output calculation like the Monte Carlo run and the values later two industry leading simulation tools
cutoff frequency for a low pass filter or it reused in a co simulation environment SLPS
can be an entire curve using the Optimizer
curve fitting capability
Smoke analysis warns of component
stress due to power dissipation increases
in junction temperature secondary
breakdowns or violations of voltage
current limits Over time these stressed
components can cause circuit failure
Smoke compares circuit simulation results
with the component s safe operating
limits If limits are exceeded Smoke
identifies the problem parameters
Smoke analysis can be used for displaying
average RMS or peak values from
simulation results and for comparing
these values against corresponding safe
operating limits
Figure 4 The Magnetic Parts Editor automates the process of designing magnetic transformers and DC
inductors and generating simulation models
www cadence com CADENCE PSPICE A D CIRCUIT SIMULATION 4
integration enables designers of electro
mechanical systems such as control
blocks sensors and power converters to
perform integrated system and circuit
simulations that include realistic electrical
PSpice models of actual components
SALES TECHNICAL
SUPPORT AND TRAINING
The OrCAD product line is owned by
Cadence Design Systems Inc and
supported by a worldwide network of
Cadence Channel Partners VARs
For sales technical support or training
contact your local Cadence Channel
Partner VAR For a complete list of
authorized Cadence Channel Partners
VARs visit www cadence com Alliances
channel partner
2010 Cadence Design Systems Inc All rights reserved Cadence the Cadence logo OrCAD and PSpice are registered trademarks of Cadence Design
Systems Inc All others are properties of their respective holders
21405 04 10 MK DP PDF


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