Prentice Hall - Analog Electronics with Labview - 2003.pdf - schematy-ebooki - walbo48

Library of Congress Cataloging-in-Publication Data

Ashley, Kenneth L.

Analog electronics with LabVIEW / Kenneth L. Ashley.

p. cm. — (National Instruments virtual instrumentation series)

Includes bibliographical references and index.

ISBN 0-13-047065-1 (pbk. : alk. paper)

1. Electronics. 2. Electronic circuits—Computer-aided design. 3. LabVIEW. I. Title. II.

Series.

TK7816 .A84 2002

621.381--dc21 2002072656

Editorial/production supervision: Patti Guerrieri

Cover design director: Jerry Votta

Cover designer: Nina Scuderi

Manufacturing manager: Alexis R. Heydt-Long

Publisher: Bernard Goodwin

Editorial assistant: Michelle Vincenti

Marketing manager: Dan DePasquale

Publishing as Prentice Hall PTR

Upper Saddle River, NJ 07458

Prentice Hall books are widely used by corporations and government agencies for training,

marketing, and resale.

For information regarding corporate and government bulk discounts please contact: Corporate

and Government Sales (800) 382-3419 or corpsales@pearsontechgroup.com

All products or services mentioned in this book are the trademarks or service marks of their

respective companies or organizations.

without permission in writing from the publisher.

Printed in the United States of America

10 9 8 7 6 5 4 3 2 1

Pearson Education LTD.

Pearson Education Australia PTY, Limited

Pearson Education Singapore, Pte. Ltd.

Pearson Education North Asia Ltd.

Pearson Education Canada, Ltd.

Pearson Educación de Mexico, S.A. de C.V.

Pearson Education — Japan

Pearson Education Malaysia, Pte. Ltd.

National Improvements | Virtual

Instrumentation Series

Kenneth L. Ashley

Analog Electronics with LabVIEW

Jeffrey Y. Beyon

Hands-On Exercise Manual for LabVIEW Programming, Data Acquisition, and Analysis

Jeffrey Y. Beyon

LabVIEW Programming, Data Acquisition, and Analysis

Mahesh L. Chugani, Abhay R. Samant, Michael Cerra

LabVIEW Signal Processing

Nesimi Ertugrul

LabVIEW for Electric Circuits, Machines, Drives, and Laboratories

Rahman Jamal · Herbert Pichlik

LabVIEW Applications and Solutions

Shahid F. Khalid

Advanced Topics in LabWindows/CVI

Shahid F. Khalid

LabWindows/CVI Programming for Beginners

Hall T. Martin · Meg L. Martin

LabVIEW for Automotive, Telecommunications, Semiconductor, Biomedical, and Other

Applications

Bruce Mihura

LabVIEW for Data Acquisition

Jon B. Olansen · Eric Rosow

Virtual Bio-Instrumentation: Biomedical, Clinical, and Healthcare Applications in LabVIEW

Barry Paton

Sensors, Transducers, and LabVIEW

Jeffrey Travis

LabVIEW for Everyone, second edition

Jeffrey Travis

Internet Applications in LabVIEW

Preface

This book presents a study of analog electronics as a stand-alone course or as a course to be

augmented by one of the many complete undergraduate textbooks on the subject. Theory and

closely coupled laboratory projects, which are based entirely on computer-based data

acquisition, follow in a sequential format. All analytical device characterization formulations are

based exactly on SPICE.

In addition to traditional curricula in electrical engineering and electronics technology, the

course is suitable for the practicing engineer in industry. For the engineer with a general

undergraduate electronics background, for example, the course of study can provide an

upgrade in basic analog electronics. Under these or similar circumstances, it can be taken as

self-paced or with minimum supervision.

Two course sequences are possible, depending on the emphasis desired:

• For a course that stresses MOSFET characterization and circuits, beginning with Unit 1

and following the sequence is recommended. A brief review of relevant circuit analysis

and the most rudimentary basics of electronics are presented initially, with associated

projects. The projects include an introduction to LabVIEW programming along with the

measurements of basic circuits. The programming aspects are directly relevant to the

thrust of the course; they emphasize the measurement of analog electronics circuits.

The student is thus provided with a basic understanding of LabVIEW concepts used

throughout the projects.

• If, on the other hand, interest is directed more toward LabVIEW and computer data

acquisition, device characterization, and circuit simulation, the appropriate beginning

sequence is Units A through C. The associated projects are Project A , Projects B , Project

C1 , and Project C2 . Project A is a programming and measurement exercise that

emphasizes and explores the use of LabVIEW DAQ software, the discrete nature of

analog-to-digital and digital-to-analog conversions, LabVIEW-based voltmeters with

autoranging, ac voltmeters, and simultaneous sending and receiving of waveforms

initiated with a function generator. This is followed with projects on transistors and

transistor circuits, which are based on the bipolar junction transistor. Although the BJT

is losing ground as the most important transistor in electronics (compared to the

MOSFET), its inherently more complex behavior provides for a rich array of circuit

simulation formulations and design challenges. The projects include the mix of NPN and

PNP devices in a single amplifier. The transistors recommended are the complementary

pair NTE 186 (2N6288) and NTE 187 (2N62xx). The transistors are rated at 3 A and are

therefore almost indestructible. At the much lower current levels of the projects, device

heating is negligible, which is important, as all measurements assume that the circuit is

at room temperature. Also, highlevel model effects are avoided, whereas low-level

effects abound.

With both approaches, all the measurement LabVIEW programs are provided. Many of the

extraordinary features provided by LabVIEW are included in the programs. The programs

therefore may serve additionally as a tutorial in advanced aspects of LabVIEW. The basics of

operational amplifiers and their applications are treated in two units and two projects.

The book format consists of one or more units of background material for each laboratory

project. A given set of theoretical units and the associated project have a related Mathcad

problems file (Problemxx.mcd) and Mathcad exercise file (ExerciseXX.mcd), relating to the

theory and project, respectively. The files are also in a pdf format (ProblemXX.pdf,

ExerciseXX.pdf). A Mathcad file (ProjectXX.mcd) for evaluating the results of the projects is

included with each project. Accompanying each Mathcad project file are SPICE simulator files

based on PSPICE. The SPICE models for the simulations use, in each case, the parameters for

the devices obtained in laboratory projects. Since the Mathcad projects use the exact SPICE

formulations, the results from Mathcad and SPICE are identical in the case of the use of basic

simulation levels.

Samples of all of the projects have been completed and are included. These provide for either

demonstrations or simulated results without actually running the programs with circuits. The

measured data are stored in LabVIEW graphics and can be extracted to obtain data files in the

same manner as actually making the measurements. In some cases, the simultaneous taking

of data, plotting and curve fitting is simulated. Units 13 and 14 are theoretical only but each

has Mathcad problems on the topic of these respective units.

Special features of the lab experience are as follows:

• The lab projects are based entirely on computer data acquisition using LabVIEW and a

National Instruments data acquisition card (DAQ) in the computer for interfacing with

the circuit board.

• Each device category has an associated project for evaluating SPICE parameters in

which device model parameters are obtained. Subsequent amplifier projects use the

parameters in performance assessment.

• No external instrumentation is required. The function generator, voltmeters, and

oscilloscopes are virtual and provided by LabVIEW and a DAQ card in the computer. The

projects on the current-mirror load common-source amplifier and the operational

amplifier require an external power supply.

• Circuits are constructed on a special circuit board. The board is connected to the

computer DAQ card through a National Instruments shielded 68-pin cable. The circuit

board allows expedient, error-free construction of the circuits, as connector strips for

the respective output and input channels and ground are available directly on the

board.

Topics included in this course treat many of the most relevant aspects of basic modern analog

electronics without straying into peripheral areas. The course essentially streamlines the study

of analog electronics. There is not a unit on, for example, feedback per se, but most basic

types of feedback are addressed at some point. The role that the device plays in frequency

response is omitted. This is consistent with the fact that to a large extent, the intension is that

theory and measurements can be connected.

Students of electrical engineering or electronics engineering of today have a vast array of

subjects to attempt to master; it is not reasonable to expect them to labor through a classical

extensive study of the subject of analog electronics, although some basic knowledge should be

required. Specialization can come at a later stage, if desired.

As mentioned, many LabVIEW features are utilized in the projects. To some extent, the goal of

demonstrating the extensive array of the capabilities of LabVIEW influences the design of the

various projects. This includes sending voltages (including waveforms), receiving voltages

(including autoscaling), scanning, graphics, reading data files, writing data files, computations such

as extraction of harmonic content of a signal, assembling data in a composite form, along with a

host of array manipulation processes and data curve fitting.

Prentice Hall - Analog Electronics with Labview - 2003.pdf

Plik z chomika:

Inne pliki z tego folderu:

Inne foldery tego chomika: