OrCAD PSpice and Circuit Analysis (4th Edition)

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OrCAD PSpice and Circuit Analysis (4th Edition)

Book: Paperback 28 - 07 - 2000

Product ID: 11909704

Condition: New
Publisher : Prentice Hall

Language : English

Paperback : 609 Pages

ISBN-10 : 0130157953

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From the Inside Flap Preface Methods of circuit analysis vary widely, depending on the complexity of the problem. Whereas some circuits require nothing more complicated than the writing of a single equation for their solution, others require that several equations be solved simultaneously. When the response of a circuit is to be performed over a wide range of frequencies, the work is often both tedious and time consuming. Various tools ranging from trig tables and slide rules to calculators and computers have been used by those eager to ease the burden of lengthy computations. In many cases the problem to be solved requires that the student have an understanding of which basic laws and principles are involved in the solution. In some cases, if the topology of a network is known, along with complete descriptions of the elements that are connected among the various nodes, computer programs can be used to perform the analyses. Such programs have been under development for several decades. If you have access to a computer language such as BASIC, Pascal, or FORTRAN, you can devise your own programs to readily solve certain types of problems. More powerful programs, capable of solving many types of electrical networks under a variety of conditions, require years to develop and update. What Is SPICE? Such a program is SPICE, which stands for Simulation Program with Integrated Circuit Emphasis. The version of SPICE used in this book is PSpice, a commercial product developed by the MicroSim Corporation. In 1998, the company merged with OrCAD, producing release 9 of the software. The evaluation version of the program, which is packaged with this text, is sufficient to perform all the exercises and simulations in this book. The evaluation version is fully functioning, but it has file size limitations. A more specific description of the software contents can be found in the README file on the accompanying CD-ROM. The SPICE program is both powerful and flexible. At the same time, it can be intimidating and bewildering to the beginner, who might well ask, How do I use this mighty tool in the most elementary way? Although it might appear foolish to use a powerful hammer to drive a tack, if novices can solve problems with SPICE for which they already know the answers, they will gain confidence to move ahead. Thus, this text begins with do circuit analysis, proceeds with ac circuit analysis, then goes into the various topics involving semiconductors. PSpice is widely used in industry for the main purpose of allowing the designer to investigate the behavior of a circuit without having to actually breadboard the circuit in the laboratory. This allows for a considerable savings in materials and labor. If the design needs to be modified or tweaked, changes can easily be submitted to the computer for another look at the results. The designer is familiar with the components that will eventually be used in the actual circuit. He or she understands their electrical properties and behavior. How large numbers of these components will interact, however, is sometimes difficult to predict. This is where the computer program takes over, going through the tedious solutions much more quickly and with far less chance for mistakes than the human approach. Should every electrical student, practitioner, and designer learn SPICE and use it? I believe the answer is an unqualified yes. It has become a standard in both the academic and professional worlds. Your education will not be complete without an exposure to this valuable tool. Will SPICE teach you what you need to know to perform both circuit analysis and design? I believe the answer is an unqualified no. A study of the basic laws that govern circuit behavior is just as important today as it ever was. SPICE and other computer aids of the same nature will merely free you of the drudgery of lengthy and repetitive computations. You will surely gain some additional knowledge in the process, which you might otherw

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