FlowCAD Your EDA-Partner · •3D mCAD-eCAD Integration •Reliability (MTBF, FTA, FMEA) •CAM Verification •Boundary Scan Test •CAD-Flow Management •PLM and ERP-Interfaces

FlowCAD Confidential │ 1

FlowCAD – Your EDA-Partner


50 Years of Moore‘s Law

Moore’s Law was published on April 19, 1965 by Gordon E. Moore, who

was working as the director of R&D at Fairchild Semiconductor.

The complexity of

electronic circuits doubles

approx. every 2 years:

(Number of constraints)

2^(x/2)


Products / Solutions for Electronic Engineers

Solutions

• PCB Layout

• PSpice - Simulation

• SI- and PI-Simulation

• Multiphysics Simulation

• Thermal Simulation

• Timing Analyse

• 3D mCAD-eCAD Integration

• Reliability (MTBF, FTA, FMEA)

• CAM Verification

• Boundary Scan Test

• CAD-Flow Management

• PLM and ERP-Interfaces


Focus on Customer Satisfaction

Sales

• Fair, competent advice

• Long term solutions

Support

• Hotline, netviewer

• Survey

Service

• PCB Design Services

• (Layout, simulation, migration)

Training

• Training centers, on-site

• Workshops


Mehr Einblick ins Systemverhalten mit PSpice System Simulation


What is PSpice A/D?

• PSpice A/D is a simulator that models the behavior of a circuit with any

mix A/D devices

• Because of the built algorithms, PSpice simulates mixed signal circuits

with no performance degradation


Cadence Achieves TÜV SÜD’s First Comprehensive “Fit for Purpose -

TCL1” Certification in Support of Automotive ISO 26262 Standard

• New level of certification established by TÜV SÜD that recognizes the growing

importance of EDA in the automotive safety market

• Functional safety documentation kits cover analog and mixed-signal, digital front-

end and verification, digital implementation and signoff, and PCB flows comprised

of nearly 40 tools, offering the broadest EDA-certified tool and flow documentation

to support the automotive industry

• PCB design and verification flow includes everything from design authoring to

simulation to physical realization and verification using Cadence OrCAD, PSpice

and Allegro product suites


Why PSpice A/D?

PSpice

Advanced

Analysis

Integrated

in Flow

PSpice

Modeling

PSpice

Systems

Option

PSpice A/D


PSpice Advanced Analysis

• PSpice AA to reduce design cost, improve

reliability, productivity and yield

Sensitivity: Identify most sensitive

components in relation to their tolerances

and your goals, estimate worst case and

reduce costs

Optimizer: Improve design performance and

retarget existing design to new

specifications or goals

Monte Carlo: Calculate yield before going to

manufacturing taking into account

component tolerances

Smoke: Examine if circuit components are

operating within safe limits

Parametric Plot: Sweep nested parameters

and ensure no unusual circuit behavior

PSpice

Advanced

Analysis

Sensitivity

Optimizer

Monte Carlo

Smoke

Parametric Plot


PSpice Systems Option

• PSpice-MATLAB Integration:

Visualization Interface: Simulate in PSpice

and visualize results in MATLAB using its

plotting capabilities

MATLAB Functions in PSpice: Use default

or customized MATLAB functions for your

designs in PSpice area

MATLAB/Simulink-PSpice Co-Simulation

(SLPS): Co-simulate electrical and

mechanical systems together adding

PSpice design in Simulink environment

MATLAB DMI in PSpice: Include

MATLAB/Simulink modules on PSpice

environment using C-coder and Device

Modeling Interface

PSpice

Systems

Option

Visualization

Interface

MATLAB

Functions in

PSpice

SLPS Co-

Simulation

MATLAB DMI

PSpice


Mixed-Signal Design Example: Field-Oriented Control of a Permanent-Magnet-Synchrone-Machine

This control technique is common in motor drive systems for hybrid electric

vehicles, manufacturing machinery, industrial automation and even washing

machines

Digital Analog Electro-

mechanical Target:

• MCU (SW)

• FPGA, ASIC (HW)

Target:

• Transitor-level

Design

Field-Oriented

Controller PWM

Power

Inverter PMSM

Load I

v

vexp


PSpice Modeling

• PSpice Modeling:

PSpice Model Editor: Generate PSpice

Models directly from datasheet

PSpice Modeling App: Generate PSpice

models using datasheet but in a quick way

reducing the accuracy

C/C++, SystemC, VerilogA, MATLAB, IBIS:

Generate system PSpice components (uC,

ASIC, etc.)

Download components from IC vendors:

PSpice is a neutral simulator and most IC

vendors deliver PSpice components (Plug

and Play)

PSpice

Modeling

PSpice Model

Editor

PSpice Modeling

App

Most IC vendors

deliver PSpice

C/C++

SystemC

VerilogA

MATLAB

IBIS


Integration in Flow

Tight integration with Virtuoso, Allegro and OrCAD PCB Design flows

Integration

in Flow Virtuoso

Allegro

OrCAD PCB


PSpice A/D Architecture

• Model-Library

• Accessories

• Standard Analysis (A/D)

Model Editor

Stimulus Editor

Magnetic Parts Editor

Simulation Manager

• Advanced Analysis (AA) Advanced Monte Carlo

Advanced Sensitivity

Smoke Analysis

Parametric Plot

Optimizer

DMI (C/C++, SystemC, VerilogA)

DC-Analysis (Bias Point)

Transient Analysis

DC-Sweep, AC Analysis

Temperature Analysis

Noise-, Fourier-, FFT Analysis

Std. Monte Carlo

Worst-Case

Std. Sensitivity

Optional


Overview Standard Analysis Types

• Analysis types

DC (Bias-Point)

Transient

DC-Sweep

AC

Temperature

Noise

Fourier, FFT

Std. Monte Carlo

Worst Case

Std. Sensitivity


Basic Analysis I

• DC sweep & other DC calculations:

Evaluation of the circuit performance in response

to a DC source:

• DC Sweep Bias point detail

• DC sensitivity

• Small-signal DC transfer


Basic Analysis II

AC sweep and noise:

• Evaluation of the circuit in response to a small-signal alternating current

source:

AC Sweep: Sweeping one or more sources over a range of frequencies

Noise: For each frequency specified in the AC analysis:

• Propagated noise contributions at an

output net form every noise generator

in the circuit

• RMS sum of the noise contributions

at the output

• Equivalent input noise


Transient and Fourier: Evaluation of the circuit in response to time

varying sources:

• Transient: Voltages, currents, and digital states tracked

over time

• Fourier: Fourier components of the transient analysis results

Basic Analysis III


Advanced Multirun Analysis I

Parametric and temperature:

PSpice steps a circuit value in a sequence that you specify and runs a

simulation for each value:

• Parametric:

Global parameter

Model Parameter

Component value

DC source

• Temperature

Operational

temperature


Advanced Multirun Analysis II

Monte Carlo and sensitivity / worst-case:

PSpice changes device model parameter values with respect to device

and lot tolerances and runs simulation for each value:

• Monte Carlo: Each simulation, randomly varies all device model

parameters with tolerance

• Sensitivity / worst-case: Computes the probable worst-case response

of the circuit


OrCAD Capture


OrCAD Capture

• Design entry tools such as OrCAD Capture or

Design Entry HDL to prepare your circuit for simulations:

Placing and connecting part symbols

Defining component values and other attributes

Defining input waveforms

Enabling one or more analyses

Marking the points in the circuit

where you want to see results


Most Important Libraries Symbol-Bibliothek Beschreibung Elemente

ABM.olb Analog Behavioral Models bandpass, EVALUE, MULT,

LAPLACE, INTEG etc.

ANALOG.OLB Analog parts R, L, C etc.

BREAKOUT.OLB Breakout Parts (Model-Editor) Rbreak, Dbreak, Qbreak etc.

FUNCTION.OLB

(subfolder \ADVANLS)

Extended ABM Models and new Function

blocks

speedometer, motor, VCO,

flywheel, transfer function H(s) etc.

SOURCE.OLB Voltage - and Current sources, other digital

sources

VDC, VSIN, IPULSE, IEXP etc.

SOURCSTM.OLB supported Sources by Stimulus-Editor VSTIM, ISTIM and DigStim

SOURCE.OLB

(Place Power)

Analog-Ground, HI und LOW AGND (0), $D_HI and $D_LO

SPECIAL.OLB Various models for special purpose like:

Printing, watching, variables, parameter

settings

PARAM, SUBPARAM, IC,

NODESET, PRINT, WATCH etc.


Project Manager

• Structure of the design

Many schematics

Many simulation profiles

per schematic

Many pages per schematic

Generated Outputs

Included Libraries


Place Part

• Click on Place Part

• Select the proper library

and the component

• Add more libraries


PSpice Library Browser

• Container to organize

and classify PSpice

components

• Search component with

a criteria

• Customizable


PSpice Modeling Application

(C) FlowCAD Confidential

• Varistor

• Zener-Diodes, LED

• Capacitor, Indcutor

• Independant Sources

• PWL Sources

• Switch

• Transformer

• VCO


Simulation Settings

• Use this GUI to define

your simulation

• Include your PSpice

libraries

• Configure the Probe

Window features

• Paramerters for

the convergence

• Configure data to be saved


Probe Window


Overview


Add Traces

• In Probe Window click on Trace Add Trace


Calculations in the Probe Window

• Frequency Response Analyses

• Performance Analysis

• FFT (Fast Fourier Transform)

• Hysteresis Core Loss

• Generate Report

• Measurements

• Connection with MATLAB

• And many more


Output file

• generated after a simulation

• It summarizes all the PSpice

results

• Use it to analyze results for

Monte Carlo

Worst Case

Convergence issues

etc.


PSpice Accessories


PSpice Stimulus Editor

• Graphical input waveform editor to define the shape

of time-based signals

• It is possible to define:

Analog stimuli with sine wave, pulse, piecewise linear, exponential pulse,

single-frequency FM shapes

Digital stimuli that range from simple clocks to complex pulse patterns and

bus sequences


PSpice Model Editor I

• It is a model extractor that generates model definitions

for PSpice to use during simulation

• It needs information about the device found in data sheets

• Model Editor displays device characteristic curve so you can verify the

model-based behavior of the device

• Once finished, PSpice Model Editor automatically creates a part for the

model


PSpice Model Editor II

• Device types supported by the Model Editor:

Diode

Bipolar Transistor

IGBT

JFET

MOSFET

Operational Amplifier

Voltage Comparator

Nonlinear Magnetic core

Voltage regulator

Voltage Reference

Darlington transistor


Magnetic Parts Editor

• Design magnetic components:

Power transformers, flyback converters and DC inductors

Generate PSpice model for the designed component

Generate data required by the manufacturer to create magnetic component

for end-users

Maintain a database of commercially available component, such as cores,

wires, and insulation material, used in the magnetic design process


Simulation Manager

• It provides a familiar, easy-to-use interface for controlling how multiple

simulations are processed. It allows:

Add or delete simulations

Start, stop or pause simulations

Rearrange the order of the simulations in the queue

Attach PSpice to a simulation to make it the active display

View the status and progress of simulations running in

the background


DE

MO

• DMI – Device Modeling Interface

Gezeigt am Beispiel eines Schaltreglers

• Hardware in the Loop

Gezeigt am Beispiel mit einem Arduino Board

• Advanced Analysis Smoke

Gezeigt am Beispiel einer Verstärkerschaltung

• Optional: Advanced Analysis Sensitivity

Gezeigt am Beispiel eines Chebychev-Filters



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Für weitere Fragen und Informationen stehen wir gerne zur Verfügung.

Please don‘t hesitate to contact us.

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FlowCAD Your EDA-Partner · •3D mCAD-eCAD Integration •Reliability (MTBF, FTA, FMEA) •CAM Verification •Boundary Scan Test •CAD-Flow Management •PLM and ERP-Interfaces

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