Simulacion de pspice

OrCad Capture Release 15.7

Robert J. Hofinger Purdue University 1/15/08

Table of Contents Part I - Capture
1. Introduction to PSpice

Computer Simulations .........................................................................................................1 An Outline of PSpice .........................................................................................................1Types of Analysis Performed by PSpice ........................................................................1

2.

Getting Started with Orcad Capture CIS, Release 15.7 ………………………………………………......……………2

Starting a new project 3. DC Simulations

PSpice Component Layout …………………………………………………………..5 DC Bias Simulation …………………...………….…………………………………6 Linear Resistance...........................................................................................................8 Non-Linear Resistance ...................................................................................................10 Operating Point ..................................................................................................................12 Markers...........................................................................................................................13 Parametric DC Sweep .....................................................................................................14 Thévenin and Norton Equivalents ..................................................................................18 4. AC Simulations

ACInputs............................................................................................................................20 Time Domain (transient analysis)……………………………………………………...21 AC Sweep Analysis ........................................................................................................24 5. Digital Simulations

Digital Simulations..........................................................................................................27 Use of Digital Input Stimuli ............................................................................................29 Use of Bus Wires .............................................................................................................32 6. Components

(i)

Part II - Allegro

1.

Introduction to OrCad PCB Editor

OrCad PCB Editor 15.7.................................................................................................... 34

(ii)

1: Introduction to PSpice
In the past, students traditionally verified their laboratory electronic circuits by building them on breadboards and measuring the various nodes with the appropriate laboratory equipment. By using a computer simulation program, such as PSpice, students can obtain results before theycome to lab. Hence the laboratory experiments become reinforcement to the subject matter at hand. The use of a computer simulation program allows the student to easily subject the circuit to various stimuli (such as input signals and power supply variations) and to see the results in either a tabular format or plotted out graphically using PSpice’s post processor called Probe.

An Outline of PSpicePSpice simulates the behavior of electronic circuits on a digital computer and tries to emulate both the signal generators and measurement equipment such as multimeters, oscilloscopes, curve tracers, and frequency spectrum analyzers.

Types of Analysis Performed by PSpice
PSpice is a general-purpose circuit simulator capable of performing four main types of analysis: Bias Point, DC Sweep, ACSweep/Noise, and Time Domain (transient). Bias Point The Bias Point analysis is the starting point for all analysis. In this mode, the simulator calculates the DC operating point of the circuit. Options include calculating the detailed bias points for all nonlinear controlled sources and semiconductors (.OP), performing sensitivity analysis (.SENS), and calculating the small signal DC gain....