Analog Design and Simulation Using OrCAD Capture and PSpice

Dennis Fitzpatrick

• Publisher: Newnes
• Year: 2017
• ISBN:
  9780081025062
• Edition: 2
• Topic: Diseño
• Subtopic: Diseño industrial

New to this edition: Updated to using OrCAD Release 17.2 and its new features; Coverage of PSPICE extra features: PSpice Designer, PSpice Designer Plus, Modelling Application, PSpice Part Search Symbol Viewer, PSpice Report, Associate PSpice model, New delay functions for Behavioural Simulation Models, New Models, Support for negative values in hysteresis voltage and threshold voltage; A new chapter on PSpice Advanced Analysis

Analog Design and Simulation Using OrCAD Capture and PSpice, Second Edition provides step-by-step instructions on how to use the Cadence/OrCAD family of Electronic Design Automation software for analog design and simulation. The book explains how to enter schematics in Capture, set up project types, project libraries and prepare circuits for PSpice simulation. There are chapters on the different analysis types for DC Bias point, DC sweep, AC frequency sweep, Parametric analysis, Temperature analysis, Performance Analysis, Noise analysis, Sensitivity and Monte Carlo simulation. Subsequent chapters explain how the Stimulus Editor is used to define custom analog and digital signals, how the Model Editor is used to view and create new PSpice models and Capture parts and how the Magnetic Parts Editor is used to design transformers and inductors. Other chapters include Analog Behaviorial models, Test Benches as well as how to create hierarchical designs.

The book includes the latest features in the OrCAD 17.2 release and there are exercises with step by step instructions at the end of each chapter that enables the reader to progress based upon their experience and knowledge gained from previous chapters. The author worked for Cadence for over eight years and supported and delivered OrCAD PSpice training courses all over Europe. This book has been endorsed by Cadence.

In addition, there are new chapters on the PSpice Advanced Analysis suite of tools: Sensitivity Analysis, Optimizer, Monte Carlo, and Smoke Analysis.The chapters show how circuit performance can effectively be maximised and optimised for variations in component tolerances, temperature effects, manufacturing yields and component stress.

• Provides both a comprehensive user guide and a detailed overview of simulation using OrCAD Capture and PSpice
• Includes worked and ready to try sample designs and a wide range of to-do exercises
• Covers Capture and PSpice together

Chapter 1

Getting Started

Abstract

For those of you who are familiar in setting up projects and drawing schematics in Capture, you may want to skip this chapter as this chapter is for those of you who have little or no experience of using Capture. The chapter will describe how to start Capture and how to set up the project type and libraries for PSpice simulation. The chapter will also introduce some of the features found in the latest software releases. At the end of each chapter there are some exercises to do and as you go through the book, each chapter will build upon the exercises from previous chapters.

Keywords

Simulation; Components; Resistor; Voltage; Circuits

Chapter Outline

1.1. Starting Capture

1.2. Creating a PSpice Project

1.3. Symbols and Parts

1.3.1 Symbols

1.3.2 Parts

1.3.3 Search for Parts

1.3.4 Quick Place of PSpice Components

1.4. PSpice Modeling Applications

1.5. Design Templates

1.6. Demo Designs

1.7. Exporting Capture Designs

1.8. Saving a Project

1.8.1 Saved Designs

1.8.2 Find and Replace Text Utility

1.8.3 Password Protection

1.9. Summary

1.10. Exercises

Exercise 1

Exercise 2

1.11. Extra Library Work

For those of you who are familiar in setting up projects and drawing schematics in Capture, you may want to skip this chapter as this chapter is for those of you who have little or no experience of using Capture. The chapter will describe how to start Capture and how to set up the project type and libraries for PSpice simulation. The chapter will also introduce some of the features found in the latest software releases. At the end of each chapter there are some exercises to do and as you go through the book, each chapter will build upon the exercises from previous chapters.

1.1 Starting Capture

Circuit diagrams for PSpice simulation are drawn in either Capture or Capture component information system (CIS) schematic editor. The CIS option allows you to select and place components from a component database instead of selecting and placing components from a library. For this book, it does not matter if the circuits are drawn in Capture or Capture CIS.

If you have the software installed under the OrCAD name, launch Capture or Capture CIS, by clicking on:

Start > Program Files > OrCAD xx.x > Capture

or

Start > Program Files > OrCAD xx.x > Capture CIS

where xx.x is the version number, i.e., 10.5, 11.0, 15.5, 15.7, 16.0, 16.2, 16.3, 16.5, or 16.6.

For example:

Start > All Programs > Cadence > OrCAD 16.6 Lite > OrCAD Capture CIS Lite

Start > All Programs > Cadence > Release 16.5 > Capture

If you have the Cadence software installed, the products are installed under the Allegro platform name. In this case, only Capture CIS is available and is branded as Design Entry CIS.

Start > Program Files > Allegro SPB 16.6 > Design Entry CIS

For the 17.2 release:

Start > All Programs > Cadence Release 17.2-2016 > OrCAD Lite Products > Capture CIS Lite

or

Start > All Programs > Cadence Release 17.2-2016 > OrCAD Products > Capture

1.2 Creating a PSpice Project

New designs started in Capture will automatically create a project file (.opj) that references the design fil...