Showing posts with label electrical. Show all posts
Showing posts with label electrical. Show all posts

Friday, January 6, 2012

A First Course in Differential Equations: With Modeling Applications (9th Edition) (Including Solutions) - Dennis G. Zill

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An analytical, qualitative, and quantitative approach to differential equations

Book Description:

A First Course in Differential Equations with Modeling Applications, 9th Edition strikes a balance between the analytical, qualitative, and quantitative approaches to the study of differential equations. This proven and accessible text speaks to beginning engineering and math students through a wealth of pedagogical aids, including an abundance of examples, explanations, "Remarks" boxes, definitions, and group projects. Using a straightforward, readable, and helpful style, this book provides a thorough treatment of boundary-value problems and partial differential equations.

Amazon.com

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Wednesday, December 28, 2011

Fortran 95/2003 for Scientists & Engineers by Stephen J. Chapman

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A Very Good Book for Learning FORTRAN

Book Description:

Chapman's Fortran for Scientists and Engineers is intended for both first year engineering students and practicing engineers. This text is the most current alternative for Fortran. It simultaneously teaches the Fortran 95/2003 programming language, structured programming techniques, and good programming practice. Among its strengths are its concise, clear explanations of Fortran syntax and programming procedures, the inclusion of a wealth of examples and exercises to help students grasp difficult concepts, and its explanations about how to understand code written for older versions of Fortran.

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              BOOK                        WinDjview

NOTE: This is *.djvu format file. So, in order to view it, you have to download “WinDjview” from the above link.

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Wednesday, May 25, 2011

Plexim Plecs Standalone 3.1.7

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PLECS® is a circuit simulator that makes it simple to model and simulate complex electrical systems along with their controls.

With the intuitive, easy-to-use schematic editor, new models are set up quickly. Thanks to a proprietary handling of switching events, simulations of power electronic circuits are fast and robust. Whether you are simulating a simple power electronic converter or a complex electrical drive, PLECS is a powerful tool that will help you quickly obtain the results that you need.

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Wednesday, March 9, 2011

Probability, Random Variables & Stochastic Processes – Athanasios Papoulis

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Download this classic book with solutions!

This text is a classic in probability, statistics, and estimation and in the application of these fields to modern engineering problems. Probability, Random Variables, and Stochastic Processes assumes a strong college mathematics background. The first half of the text develops the basic machinery of probability and statistics from first principles while the second half develops applications of the basic theory. Topics in the first section include probability distributions and densities, random variables and vectors, expectations, covariance, correlations, functions of random variables and vectors, and conditional distributions and densities. In this third edition of the text, the second half of the book has been substantially updated and expanded to include new or revised discussions of the following topics: mean square estimation, likelihood tests, maximum entropy methods, Monte Carlo techniques, spectral representations and estimation, sampling theory, bispectra and system identification, cyclostationary processes, deterministic signals in noise, and the Wiener and Kalman filters. Probability, Random Variables, and Stochastic Processes covers a remarkable density of material and the clarity of both presentation and notation make this book invaluable as a text and a reference.

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Saturday, February 19, 2011

Protection and Switchgear - U.A.Bakshi & M.V.Bakshi

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This book presents a balanced exposition of the basic principles and contemporary developments in switchgears and power system protection. Important Features: Both vacuum and SF6 circuit breakers discussed along with different kinds of switchgears; Construction details and testing techniques of circuit breakers explained; In addition to electromagnetic relays, both static and microprocessor-based relays explained for power system protection; Reliability of power system protection discussed; Several solved examples and unsolved problems presented.

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Tuesday, February 15, 2011

Electrical Engineering Dictionary

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This is actually a text based dictionary in pdf format which can be useful for knowing many electrical terms in minimum time. Since, it is in pdf-format, you can find your query by using the ‘find’ option (CTRL+F) of the pdf reader.

It consists of three files having a range of English alphabets each.

DOWNLOAD (Split into 3 pdf files)

Update: You can also download this single file (combination of the of above mentioned 3 files)

DOWNLOAD (1 pdf)                                    (Thanks to Goldig)

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Thursday, February 3, 2011

Circuit Analysis I with MATLAB - Steven T. Karris

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This book introduces the basic principles of electrical engineering presumes basic knowledge of differential and integral calculus and physics. Students learn the fundamentals of electrical circuit analysis and are introduced to MATLAB--software used to write efficient, compact programs to solve electrical and computer engineering problems of varying complexity.

Table of Contents:

  1. Basic Concepts and Definitions
  2. Analysis of Simple Circuits
  3. Nodal & Mesh Equations
  4. Introduction to Operational Amplifiers
  5. Inductance and Capacitance
  6. Sinusoidal Circuit Analysis
  7. Phasor Circuit Analysis
  8. Average and RMS Values, Complex Power, and Instruments
  9. Natural Response
  10. Forced and Total Response in RL and RC Circuits
  11. Appendix
    • Appendix A - Introduction to MATLAB
    • Appendix B - A Review of Complex Numbers
    • Appendix C - Matrices and Determinants

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Wednesday, January 5, 2011

Power System Analysis by John J. Grainger, William D. Stevenson (inc. Solutions)

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Publisher's Note:

Based on William Stevenson's classic, Elements of Power System Analysis, this new senior/graduate text offers a completely modern update of this popular textbook. Covering such topics as power flow, power-system stability and transmission lines, the book teaches the fundamental topics of power system analysis accompanied by logical discussions and numerous examples.

When John Grainger began revising William Stevenson's classic Elements of Power System Analysis, he realized that a complete modernization was in order. By the time he finished, an entirely new book was written, re-titled Power System Analysis. Covering such topics as power flow, power system stability and transmission lines, Power System Analysis teaches the fundamental topics of power system analysis using logical discussions and numerous examples. The new chapter on power system state estimation incorporates the latest developments in the field, and the discussion of system control covers economic factors of line losses and penalty factors. The loyal following earned by Stevenson will surely enjoy the modern power system analysis presented here.

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NOTE: This download contains the book in PDF format as well as its solution manuals!!!

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Saturday, November 6, 2010

SciLab - A Small Sized Open-Source Alternative to MATLAB

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Scilab is an open source, cross-platform numerical computational package and a high-level, numerically oriented programming language. It can be used for signal processing, statistical analysis, image enhancement, fluid dynamics simulations, numerical optimization, and modeling and simulation of explicit and implicit dynamical systems. MATLAB code, which is similar in syntax, can be converted to Scilab. Scilab is one of several open source alternatives to MATLAB.

Scilab is a high-level, numerically oriented programming language. The language provides an interpreted programming environment, with matrices as the main data type. By utilizing matrix-based computation, dynamic typing, and automatic memory management, many numerical problems may be expressed in a reduced number of code lines, as compared to similar solutions using traditional languages, such as Fortran, C, or C++. This allows users to rapidly construct models for a range of mathematical problems. While the language provides simple matrix operations such as multiplication, the Scilab package also provides a library of high-level operations such as correlation and complex multidimensional arithmetic. The software can be used for signal processing, statistical analysis, image enhancement, fluid dynamics simulations, and numerical optimization.

Scilab also includes a free package called Xcos (based on Scicos) for modeling and simulation of explicit and implicit dynamical systems, including both continuous and discrete sub-systems. Xcos can be compared to Simulink from the MathWorks.

As the syntax of Scilab is similar to MATLAB, Scilab includes a source code translator for assisting the conversion of code from MATLAB to Scilab. Scilab is available free of cost under an open source license. Due to the open source nature of the software, some user contributions have been integrated into the main program.

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Tuesday, November 2, 2010

Schaum's Outline of Theory and Problems of Matrix Operations

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Master matrix operations with Schaum's: the high-performance study guide. It will help you cut study time, hone problem-solving skills, and achieve your personal best on exams! Students love Schaum's Outlines because they produce results. Each year, hundreds of thousands of students improve their test scores and final grades with these indispensable study guides. Get the edge on your classmates. Use Schaum's!

If you don't have a lot of time but want to excel in class, this book helps you:

  • Brush up before tests
  • Find answers fast
  • Study quickly and more effectively
  • Get the big picture without spending hours pouring over lengthy textbooks

Schaum's Outlines give you the information teachers expect you to know in a handy and succinct format without overwhelming you with unnecessary details. You get a complete overview of the subject. Plus, you get plenty of practice exercises to test your skill. Compatible with any classroom text, Schaum's lets you study at your own pace and reminds you of all the important facts you need to remember fast! And Schaum's are so complete, they're perfect for preparing for graduate or professional exams.

Inside, you will find:

  • 363 detailed problems with step-by-step solutions
  • Clear, concise explanations of matrix operations
  • Help with Eigenvalues and the QR Algorithm
  • A solved-problem approach that teaches you with hands-on help
  • Exercises for improving your problem-solving skills

If you want top grades and a thorough understanding of matrix operations, this powerful study tool is the best tutor you can have!

Chapters include:

  1. Basic Operations
  2. Simultaneous Linear Equations
  3. Square Matrices
  4. Matrix Inversion
  5. Determinants
  6. Vectors
  7. Eigenvalues and Eigenvectors
  8. Functions of Matrices
  9. Canonical Bases
  10. Similarity
  11. Inner Products
  12. Norms
  13. Hermitian Matrices
  14. Positive Definite Matrices
  15. Unitary Transformations
  16. Quadratic Forms and Congruence
  17. Nonnegative Matrices
  18. Patterned Matrices
  19. Power Methods for Locating Real Eigenvalues
  20. The QR Algorithm
  21. Generalized Inverses

NOTE:  This is a ‘DjVu’ format. Use “WinDjView” (Just search it. Its available in blog!) to view.

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Friday, October 22, 2010

PID Simulator

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As obvious from the name, this software help in simulation of various PID controllers by merely changing their parameters. It may not be more useful at industrial level, but (I hope) students will find it helpful for their studies.

On a friend’s request, I searched for PID tuning software but could not succeed. Instead, I found these 5 (1 excel file and 4 exe). A brief description and download link of each of them, is given below:

  1. PID Loop Simulator: This tool simulates a control loop consisting of a first order process with deadtime and a PID controller.
    • How to use: The process is specified by the process gain, time constant and dead time. The PID controller has 3 parameters: gain, integral and derivative. Key in these values into the appropriate cells. If the integral time is keyed in as 0, the integral term is ignored.
    • Personal comment: Nice!!
  2. PID Simulator 1.0.0.6: PID simulator is a simple PID simulator designed to help you get a feel of how to tune a PID by adjusting the various properties.
  3. PID Simulator: The module gives time and frequency domain views of the responses of a closed-loop system consisting of a PID controller and a process model. Many process models can be selected, controller parameters can be changed interactively, and the resulting responses are displayed instantaneously.
    • Personal comment: Probably the 2nd best.
  4. PID Loop Shaping Module: This module will give you insight into loop shaping using PID control.
  5. CONTROLLER TUNING 101: This is the best PID simulator I could find, but unfortunately, this is a demo version. I did not observe any restriction in the demo version so far. It provides controller input fields with the help of a block diagram, which is quite helpful. After setting the values, click the ‘Run’ button to view the output graph.
    • Personal comment: Best but Demo version.

RECOMMENDATION: Since, the total download size of the 5 simulators is less than 4MB, I shall recommend you to download and try each of the simulators. This will help us finding which of these is best.

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Tuesday, October 12, 2010

Proteus 7.7 SP2

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The Proteus Design Suite is wholly unique in offering the ability to co-simulate both high and low-level micro-controller code in the context of a mixed-mode SPICE circuit simulation. With this Virtual System Modeling facility, you can transform your product design cycle, reaping huge rewards in terms of reduced time to market and lower costs of development.

If one person designs both the hardware and the software then that person benefits as the hardware design may be changed just as easily as the software design. In larger organizations where the two roles are separated, the software designers can begin work as soon as the schematic is completed; there is no need for them to wait until a physical prototype exists. In short, Proteus VSM improves efficiency, quality and flexibility throughout the design process..

What is Proteus VSM?

Proteus Virtual System Modeling (VSM) combines mixed mode SPICE circuit simulation, animated components and microprocessor models to facilitate co-simulation of complete microcontroller based designs. For the first time ever, it is possible to develop and test such designs before a physical prototype is constructed.

This is possible because you can interact with the design using on screen indicators such as LED and LCD displays and actuators such as switches and buttons. The simulation takes place in real time (or near enough to it): a 1GMHz Pentium III can simulate a basic 8051 system clocking at over 12MHz. Proteus VSM also provides extensive debugging facilities including breakpoints, single stepping and variable display for both assembly code and high level language source.

Circuit Simulation

At the heart of Proteus VSM is ProSPICE. This is an established product that combines uses a SPICE3f5 analogue simulator kernel with a fast event-driven digital simulator to provide seamless mixed-mode simulation. The use of a SPICE kernel lets you utilize any of the numerous manufacturer-supplied SPICE models now available and around 6000 of these are included with the package.

Proteus VSM includes a number of virtual instruments including an Oscilloscope, Logic Analyzer, Function Generator, Pattern Generator, Counter Timer and Virtual Terminal as well as simple voltmeters and ammeters. In addition, we provide dedicated Master/Slave/Monitor mode protocol analysers for SPI and I2C - simply wire them onto the serial lines and monitor or interact with the data live during simulation. A truly invaluable (and inexpensive!) way to get your communication software right prior to hardware prototyping.

Should you wish to take detailed measurements on graphs, or perform other analysis types such as frequency, distortion, noise or sweep analyses of analogue circuits, you can purchase the Advanced Simulation Option. This option also includes Conformance Analysis - a unique and powerful tool for Software Quality Assurance.
Co-Simulation of Microcontroller Software

The most exciting and important feature of Proteus VSM is its ability to simulate the interaction between software running on a microcontroller and any analog or digital electronics connected to it.

The micro-controller model sits on the schematic along with the other elements of your product design. It simulates the execution of your object code (machine code), just like a real chip. If the program code writes to a port, the logic levels in circuit change accordingly, and if the circuit changes the state of the processor's pins, this will be seen by your program code, just as in real life.

The VSM CPU models fully simulate I/O ports, interrupts, timers, USARTs and all other peripherals present on each supported processor. It is anything but a simple software simulator since the interaction of all these peripherals with the external circuit is fully modeled down to waveform level and the entire system is therefore simulated.

VSM can even simulate designs containing multiple CPUs, since it is a simple enough matter to place two or more processors on a schematic and wire them together.

INSTALL INTRUCTIONS:

  • Uninstall old versions of Proteus first.
  • Delete the program folder Labcenter manually (Labcenter Electronics folder)
  • Run Proteus 7.1 sp2 setup file
  • Remove old Proteus license (if exists)
  • Point to the new LICENCE.lxk in the patch folder and install it.
  • Continue the installing steps
  • After all, run the patch file ( patch.exe ) point it to your Proteus folder
  • That's all, enjoy...

UPDATED INSTRUCTIONS (for Proteus 7.7 SP2 Only):

  • Install Proteus from the given setup.
  • Install the Service Pack 2 update (ENG ver.).
  • Install the License file.
  • Enjoy…..

ADDING NEW LIBRARIES & MODELS:

  • Extract the ‘Library’ & ‘Models’ folders from the compressed file.
  • Select all the files in the ‘Library’ folder and copy it to the ‘Library’ folder of Proteus. Rename the files having same file-name.
  • Now, do the similar procedure for the contents of ‘Models’ folder.
  • Start Proteus. All the Libraries and Models will automatically be added.
  • Enjoy….

NOTE: This download contains Proteus installation files, License file and patch… Just follow the instructions and…. enjoy.. :-)

DOWNLOAD (Proteus 7.1 SP2)

DOWNLOAD (Proteus 7.7 SP2)

ADDITIONAL LIBS+MODELS

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Monday, August 30, 2010

Graph Software: DPlot 2.2.7.6 (Portable)

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DPlot is a general purpose plotting program designed for scientists, engineers, and students.

DPlot features multiple scaling types, including linear, logarithmic, and probability scales, as well as several special purpose plots: tripartite grids (shock spectra), grain size distribution plots, polar plots, contour plots of 3D data, and box-and-whisker plots and dot graphs of one or more 1D samples.

Manipulation functions include FFT, filtering, and smoothing.

Data can be input via a variety of file formats, copied from the clipboard, sent to DPlot from another program via dynamic data exchange, or generated by formula. Example Visual Basic and C demo driver programs (source and compiled executable) are included.

Features:

  • Multiple Scaling Types
  • Bar Charts
  • Box-and-Whisker Plots
  • Multiple Independent or Dependent Scales
  • Contour Plots of 3D Data
  • Number of Formats
  • Generate Curves from Formulas
  • Interpolate between Points

NOTE: This is a portable version, means just extract and use.

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Monday, August 16, 2010

Power Electronic Control in Electrical Systems - E.Acha


Within this book, the fundamental concepts associated with the topic of power electronic control, are covered alongside the latest equipments and devices, new application areas and associated computer-assisted methods.

  • A practicle guide to control of reactive power systems
  • Ideal for post-graduate and professional courses
  • Covers the latest equipement and computer-aided analysis
  • DOWNLOAD: http://www.megaupload.com/?d=549LVVKI

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    Saturday, July 31, 2010

    Electrical Machines & Drives - E.G.Strangas


    This text introduces Electrical Engineering students to Electrical Machines, Power Electronics and Electrical Drives which is primarily useful to those students who come to the course on Energy Conversion and Power Electronics with a solid background in Electric Circuits and Electromagnetics, and to students interested in continuing in the study of electrical machines and drives, power electronics or power systems.
    Staring from basic concepts, this book leads its reader to the understanding of how force, torque, induced voltages and currents are developed in an electrical machine. Then models of the machines are developed, in terms of both simplified equations and of equivalent circuits, leading to the basic understanding of modern machines and drives. Power Electronics are introduced, at the device and systems level, and electrical drives are discussed.

    CONTENTS:

    1. Three Phase Circuits and Power
    2. Magnetics
    3. Transformers
    4. Concepts of Electrical Machines: DC Motors
    5. Three-phase Windings

    DOWNLOAD: http://www.megaupload.com/?d=AFJBJKEG

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    Monday, July 26, 2010

    Circuit Analysis II with MATLAB - Steven T. Karris


    Designed for use in a second course in circuit analysis, this text engages a full spectrum of circuit analysis related subjects ranging from the most abstract to the most practical. The reader of this book should have the traditional undergraduate knowledge of an introductory circuit analysis material. Another prerequisite would be a basic knowledge of differential equations. This is not a math text. However, the differential equations and Laplace transformation material presented in this text is adequate for the derivation of pertinent relations and there is no need to refer to advanced math texts. Featured are methods of expressing signals in terms of the elementary functions, an introduction to second order circuits, and several examples of analyzing electric circuits using Laplace transformation methods. Though not written explicitly to be used with MATLAB, this text provides many useful tips and strategies for MATLAB, allowing students to get the most out of the popular program.
    I have personally found this book very helpful and well-written. Since, MATLAB is used by most of the electrical engineering students, so this book is a bonus for you as it shows the use of various MATLAB applications.

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    Thursday, July 22, 2010

    Basic Electrical Engineering - U.A.Bakshi


    As mentioned from its name, this book covers the basics of electrical engineering in a comprehensive way. One of  the many advantages of this book is the usage of simple yet efficient language.

    The contents of the book is as under:

    1. GENERAL
    2. D.C. CIRCUITS
    3. ELECTROMAGNETISM
    4. ELECTROSTATICS AND A.C. FUNDAMENTALS
    5. SINGLE PHASE A.C. CIRCUITS
    6. POLYPHASE A.C. CIRCUITS AND SINGLE PHASE TRANSFORMERS

    DOWNLOAD: http://www.megaupload.com/?d=A2PHCFP1

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    Saturday, July 17, 2010

    Electric Machinery Fundamentals (4th Edition) - Stephen J. Chapman


    Among the various books of Electrical Engineering, Stephen Chapman’s Electric Machinery Fundamentals (fourth edition) has a special place. Chapman has the rare ability to strike a golden balance between theory and practice, and between rigour and informality, such that the theoretical actually illuminates the practical.

    Table of Contents 

    1 Introduction to Machinery Principles
    2 Transformers
    3 Introduction to Power Electronics
    4 AC Machinery Fundamentals
    5 Synchronous Generators
    6 Synchronous Motors
    7 Induction Motors
    8 DC Machinery Fundamentals
    9 DC Motors and Generators
    10 Single Phase and Special Purpose Motors

    NOTE: This download comes with a bonus material. It contains the original text, its solution manual and MATLAB m-files files for various examples.

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