Analog Design and Simulation Using OrCAD Capture and PSpice

Download Analog Design and Simulation Using OrCAD Capture and PSpice PDF Online Free

Author :
Publisher : Elsevier
ISBN 13 : 0080970958
Total Pages : 345 pages
Book Rating : 4.0/5 (89 download)

DOWNLOAD NOW!


Book Synopsis Analog Design and Simulation Using OrCAD Capture and PSpice by : Dennis Fitzpatrick

Download or read book Analog Design and Simulation Using OrCAD Capture and PSpice written by Dennis Fitzpatrick and published by Elsevier. This book was released on 2011-11-16 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anyone involved in circuit design that needs the practical know-how it takes to design a successful circuit or product, will find this practical guide to using Capture-PSpice (written by a former Cadence PSpice expert for Europe) an essential book. The text delivers step-by-step guidance on using Capture-PSpice to help professionals produce reliable, effective designs. Readers will learn how to get up and running quickly and efficiently with industry standard software and in sufficient detail to enable building upon personal experience to avoid common errors and pit-falls. This book is of great benefit to professional electronics design engineers, advanced amateur electronics designers, electronic engineering students and academic staff looking for a book with a real-world design outlook. Provides both a comprehensive user guide, and a detailed overview of simulation Each chapter has worked and ready to try sample designs and provides a wide range of to-do exercises Core skills are developed using a running case study circuit Covers Capture and PSpice together for the first time.

Modelling Photovoltaic Systems Using PSpice

Download Modelling Photovoltaic Systems Using PSpice PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 : 0470855533
Total Pages : 376 pages
Book Rating : 4.4/5 (78 download)

DOWNLOAD NOW!


Book Synopsis Modelling Photovoltaic Systems Using PSpice by : Luis Castañer

Download or read book Modelling Photovoltaic Systems Using PSpice written by Luis Castañer and published by John Wiley & Sons. This book was released on 2003-03-07 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photovoltaics, the direct conversion of light from the sun into electricity, is an increasingly important means of distributed power generation. The SPICE modelling tool is typically used in the development of electrical and electronic circuits. When applied to the modelling of PV systems it provides a means of understanding and evaluating the performance of solar cells and systems. The majority of books currently on the market are based around discussion of the solar cell as semiconductor devices rather than as a system to be modelled and applied to real-world problems. Castaner and Silvestre provide a comprehensive treatment of PV system technology analysis. Using SPICE, the tool of choice for circuits and electronics designers, this book highlights the increasing importance of modelling techniques in the quantitative analysis of PV systems. This unique treatment presents both students and professional engineers, with the means to understand, evaluate and develop their own PV modules and systems. * Provides a unique, self-contained, guide to the modelling and design of PV systems * Presents a practical, application oriented approach to PV technology, something that is missing from the current literature * Uses the widely known SPICE circuit-modelling tool to analyse and simulate the performance of PV modules for the first time * Written by respected and well-known academics in the field

PSpice for Basic Circuit Analysis

Download PSpice for Basic Circuit Analysis PDF Online Free

Author :
Publisher : McGraw-Hill Science, Engineering & Mathematics
ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.0/5 ( download)

DOWNLOAD NOW!


Book Synopsis PSpice for Basic Circuit Analysis by : Joseph G. Tront

Download or read book PSpice for Basic Circuit Analysis written by Joseph G. Tront and published by McGraw-Hill Science, Engineering & Mathematics. This book was released on 2004 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

PSpice for Digital Communications Engineering

Download PSpice for Digital Communications Engineering PDF Online Free

Author :
Publisher : Morgan & Claypool Publishers
ISBN 13 : 1598291629
Total Pages : 215 pages
Book Rating : 4.5/5 (982 download)

DOWNLOAD NOW!


Book Synopsis PSpice for Digital Communications Engineering by : Paul Tobin

Download or read book PSpice for Digital Communications Engineering written by Paul Tobin and published by Morgan & Claypool Publishers. This book was released on 2007 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: PSpice for Digital Communications Engineering shows how to simulate digital communication systems and modulation methods using the very powerful Cadence Orcad PSpice version 10.5 suite of software programs. Fourier series and Fourier transform are applied to signals to set the ground work for the modulation techniques introduced in later chapters. Various baseband signals, including duo-binary baseband signaling, are generated and the spectra are examined to detail the unsuitability of these signals for accessing the public switched network. Pulse code modulation and time-division multiplexing circuits are examined and simulated where sampling and quantization noise topics are discussed. We construct a single-channel PCM system from transmission to receiver i.e. end-to-end, and import real speech signals to examine the problems associated with aliasing, sample and hold.Companding is addressed here and we look at the A and mu law characteristics for achieving better signal to quantization noise ratios. Several types of delta modulators are examined and also the concept of time divisionmultiplexing is considered. Multi-level signaling techniques such as QPSK andQAMare analyzed and simulated and 'home-made meters', such as scatter and eye meters, are used to assess the performance of these modulation systems in the presence of noise. The raised-cosine family of filters for shaping data before transmission is examined in depth where bandwidth efficiency and channel capacity is discussed. We plot several graphs in Probe to compare the efficiency of these systems. Direct spread spectrum is the last topic to be examined and simulated to show the advantages of spreading the signal over a wide bandwidth and giving good signal security at the same time.

PSpice for Digital Signal Processing

Download PSpice for Digital Signal Processing PDF Online Free

Author :
Publisher : Morgan & Claypool Publishers
ISBN 13 : 1598291645
Total Pages : 155 pages
Book Rating : 4.5/5 (982 download)

DOWNLOAD NOW!


Book Synopsis PSpice for Digital Signal Processing by : Paul Tobin

Download or read book PSpice for Digital Signal Processing written by Paul Tobin and published by Morgan & Claypool Publishers. This book was released on 2007 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: We examine linear time invariant systems starting with the difference equation and applying the z-transform to produce a range of filter type i.e. low-pass, high-pass and bandpass. The important concept of convolution is examined and here we demonstrate the usefulness of the 'log' command in Probe for giving the correct display to demonstrate the 'flip n slip' method. Digital oscillators, including quadrature carrier generation, are then examined. Several filter design methods are considered and include the bilinear transform, impulse invariant, and window techniques. Included also is a treatment of the raised-cosine family of filters. A range of DSP applications are then considered and include the Hilbert transform, single sideband modulator using the Hilbert transform and quad oscillators, integrators and differentiators. Decimation and interpolation are simulated to demonstrate the usefulness of the multi-sampling environment.

Circuit Systems with MATLAB and PSpice

Download Circuit Systems with MATLAB and PSpice PDF Online Free

Author :
Publisher : Won Y. Yang
ISBN 13 : 8972839957
Total Pages : 550 pages
Book Rating : 4.9/5 (728 download)

DOWNLOAD NOW!


Book Synopsis Circuit Systems with MATLAB and PSpice by : Won Y. Yang

Download or read book Circuit Systems with MATLAB and PSpice written by Won Y. Yang and published by Won Y. Yang. This book was released on 2012-03-02 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1. Instead of the conventional method using the general/particular solutions to solve differential equations for the circuits containing inductors/capacitors, this book lays emphasis on the Laplace transform method for solving differential equations. We recommend taking the Laplace transform of electric circuits (containing inductors/capacitors) and setting up the transformed circuit equations directly in the unified framework (as if they were just made of resistors and sources) rather than setting up the circuit equations in the form of differential equations and then taking their Laplace transforms to solve them. The Laplace transform and the inverse Laplace transform are introduced in the Appendix. 2. This book presents several MATLAB programs that can be used to get the Laplace transformed solutions, take their inverse Laplace transforms, and plot the solutions along the time or frequency axis. The MATLAB programs can save a lot of time and effort for obtaining the solutions in the time domain or frequency domain so that readers can concentrate on establishing circuit equations, gaining insights to the problems, and making observations/interpretations of the solutions. 3. This book also introduces step by step how to use OrCAD/PSpice for circuit simulations. For circuit problems taking much time to solve by hand, the readers are recommended to use MATLAB and PSpice. This approach gives the readers not only information about the state of the art, but also self-confidence on the condition that the graphical solutions obtained by using the two software tools agree with each other. The OrCAD/PSpice is introduced in the Appendix. However, the portion of MATLAB and PSpice is kept not large lest the readers should be addicted to just using the software and tempted to neglect the importance of the basic circuit theory. 4. We make each example show something different from other examples so that readers can efficiently acquire the essential circuit analysis techniques and gain insights into the various types of circuits. On the other hand, instead of repeating similar exercise problems, we make most exercise problems arouse readers’ interest in practical application or help form a view for circuit application and design. 5. For representative examples, the analytical solutions are presented together with the results of MATLAB analysis (close to the theory) and PSpice simulation (close to the experiment) in the form of trinity. We are sure that this style of presentation will interest many students, attracting their attention to the topics on circuits efficiently. 6. Unlike most circuit books with a similar title, our book deals with positive-feedback op-amp circuits as well as negative-feedback op-amp circuits.

PSPICE and MATLAB for Electronics

Download PSPICE and MATLAB for Electronics PDF Online Free

Author :
Publisher : CRC Press
ISBN 13 : 143985971X
Total Pages : 426 pages
Book Rating : 4.4/5 (398 download)

DOWNLOAD NOW!


Book Synopsis PSPICE and MATLAB for Electronics by : John Okyere Attia

Download or read book PSPICE and MATLAB for Electronics written by John Okyere Attia and published by CRC Press. This book was released on 2010-06-23 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Used collectively, PSPICE and MATLAB are unsurpassed for circuit modeling and data analysis. PSPICE can perform DC, AC, transient, Fourier, temperature, and Monte Carlo analysis of electronic circuits with device models and subsystem subcircuits. MATLAB can then carry out calculations of device parameters, curve fitting, numerical integration, nume

PSpice for Circuit Theory and Electronic Devices

Download PSpice for Circuit Theory and Electronic Devices PDF Online Free

Author :
Publisher : Morgan & Claypool Publishers
ISBN 13 : 1598291564
Total Pages : 175 pages
Book Rating : 4.5/5 (982 download)

DOWNLOAD NOW!


Book Synopsis PSpice for Circuit Theory and Electronic Devices by : Paul Tobin

Download or read book PSpice for Circuit Theory and Electronic Devices written by Paul Tobin and published by Morgan & Claypool Publishers. This book was released on 2007 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: PSpice for Circuit Theory and Electronic Devices is one of a series of five PSpice books and introduces the latest Cadence Orcad PSpice version 10.5 by simulating a range of DC and AC exercises. It is aimed primarily at those wishing to get up to speed with this version but will be of use to high school students, undergraduate students, and of course, lecturers. Circuit theorems are applied to a range of circuits and the calculations by hand after analysis are then compared to the simulated results. The Laplace transform and the s-plane are used to analyze CR and LR circuits where transient signals are involved. Here, the Probe output graphs demonstrate what a great learning tool PSpice is by providing the reader with a visual verification of any theoretical calculations. Series and parallel-tuned resonant circuits are investigated where the difficult concepts of dynamic impedance and selectivity are best understood by sweeping different circuit parameters through a range of values. Obtaining semiconductor device characteristics as a laboratory exercise has fallen out of favour of late, but nevertheless, is still a useful exercise for understanding or modelling semiconductor devices. Inverting and non-inverting operational amplifiers characteristics such as gain-bandwidth are investigated and we will see the dependency of bandwidth on the gain using the performance analysis facility. Power amplifiers are examined where PSpice/Probe demonstrates very nicely the problems of cross-over distortion and other problems associated with power transistors. We examine power supplies and the problems of regulation, ground bounce, and power factor correction. Lastly, we look at MOSFET device characteristics and show how these devices are used to form basic CMOS logic gates such as NAND and NOR gates.

PSpice for Filters and Transmission Lines

Download PSpice for Filters and Transmission Lines PDF Online Free

Author :
Publisher : Morgan & Claypool Publishers
ISBN 13 : 1598291580
Total Pages : 167 pages
Book Rating : 4.5/5 (982 download)

DOWNLOAD NOW!


Book Synopsis PSpice for Filters and Transmission Lines by : Paul Tobin

Download or read book PSpice for Filters and Transmission Lines written by Paul Tobin and published by Morgan & Claypool Publishers. This book was released on 2007 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, PSpice for Filters and Transmission Lines, we examine a range of active and passive filters where each design is simulated using the latest Cadence Orcad V10.5 PSpice capture software. These filters cannot match the very high order digital signal processing (DSP) filters considered in PSpice for Digital Signal Processing, but nevertheless these filters have many uses. The active filters considered were designed using Butterworth and Chebychev approximation loss functions rather than using the 'cookbook approach' so that the final design will meet a given specification in an exacting manner. Switched-capacitor filter circuits are examined and here we see how useful PSpice/Probe is in demonstrating how these filters, filter, as it were. Two-port networks are discussed as an introduction to transmission lines and, using a series of problems, we demonstrate quarter-wave and single-stub matching. The concept of time domain reflectrometry as a fault location tool on transmission lines is then examined. In the last chapter we discuss the technique of importing and exporting speech signals into a PSpice schematic using a tailored-made program Wav2ascii. This is a novel technique that greatly extends the simulation boundaries of PSpice. Various digital circuits are also examined at the end of this chapter to demonstrate the use of the bus structure and other techniques.

LABORATORY EXPERIMENTS AND PSPICE SIMULATIONS IN ANALOG ELECTRONICS

Download LABORATORY EXPERIMENTS AND PSPICE SIMULATIONS IN ANALOG ELECTRONICS PDF Online Free

Author :
Publisher : PHI Learning Pvt. Ltd.
ISBN 13 : 8120329279
Total Pages : 344 pages
Book Rating : 4.1/5 (23 download)

DOWNLOAD NOW!


Book Synopsis LABORATORY EXPERIMENTS AND PSPICE SIMULATIONS IN ANALOG ELECTRONICS by : L. K. MAHESHWARI

Download or read book LABORATORY EXPERIMENTS AND PSPICE SIMULATIONS IN ANALOG ELECTRONICS written by L. K. MAHESHWARI and published by PHI Learning Pvt. Ltd.. This book was released on 2006-01-01 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: This laboratory manual for students of Electronics, Electrical, Instrumentation, Communication, and Computer engineering disciplines has been prepared in the form of a standalone text, offering the necessary theory and circuit diagrams with each experiment. Procedures for setting up the circuits and measuring and evaluating their performance are designed to support the material of the authors' book Analog Electronics (also published by PHI Learning). There are twenty-five experiments. The experiments cover the basic transistor circuits, the linear op-amp circuits, the active filters, the non-linear op-amp circuits, the signal generators, the voltage regulators, the power amplifiers, the high frequency amplifiers, and the data converters. In addition to the hands-on experiments using traditional test equipment and components, this manual describes the simulation of circuits using PSPICE as well. For PSPICE simulation, any available standard SPICE software may be used including the latest version OrCAD V10 Demo software. This feature allows the instructor to adopt a single laboratory manual for both types of experiments.

PSpice for Analog Communications Engineering

Download PSpice for Analog Communications Engineering PDF Online Free

Author :
Publisher : Morgan & Claypool Publishers
ISBN 13 : 1598291602
Total Pages : 155 pages
Book Rating : 4.5/5 (982 download)

DOWNLOAD NOW!


Book Synopsis PSpice for Analog Communications Engineering by : Paul Tobin

Download or read book PSpice for Analog Communications Engineering written by Paul Tobin and published by Morgan & Claypool Publishers. This book was released on 2007 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: In PSpice for Analog Communications Engineering we simulate the difficult principles of analog modulation using the superb free simulation software Cadence Orcad PSpice V10.5. While use is made of analog behavioral model parts (ABM), we use actual circuitry in most of the simulation circuits. For example, we use the 4-quadrant multiplier IC AD633 as a modulator and import real speech as the modulating source and look at the trapezoidal method for measuring the modulation index. Modulation is the process of relocating signals to different parts of the radio frequency spectrum by modifying certain parameters of the carrier in accordance with the modulating/information signals. In amplitude modulation, the modulating source changes the carrier amplitude, but in frequency modulation it causes the carrier frequency to change (and in phase modulation it's the carrier phase). The digital equivalent of these modulation techniques are examined in PSpice for Digital communications Engineering where we examine QAM, FSK, PSK and variants. We examine a range of oscillators and plot Nyquist diagrams showing themarginal stability of these systems. The superhetrodyne principle, the backbone of modern receivers is simulated using discrete components followed by simulating complete AM and FM receivers. In this exercise we examine the problems ofmatching individual stages and the use of double-tuned RF circuits to accommodate the large FM signal bandwidth.

Analog Design and Simulation Using OrCAD Capture and PSpice

Download Analog Design and Simulation Using OrCAD Capture and PSpice PDF Online Free

Author :
Publisher : Newnes
ISBN 13 : 0081025068
Total Pages : 454 pages
Book Rating : 4.0/5 (81 download)

DOWNLOAD NOW!


Book Synopsis Analog Design and Simulation Using OrCAD Capture and PSpice by : Dennis Fitzpatrick

Download or read book Analog Design and Simulation Using OrCAD Capture and PSpice written by Dennis Fitzpatrick and published by Newnes. This book was released on 2017-12-11 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Electronic Circuits with MATLAB, PSpice, and Smith Chart

Download Electronic Circuits with MATLAB, PSpice, and Smith Chart PDF Online Free

Author :
Publisher : John Wiley & Sons
ISBN 13 : 1119598923
Total Pages : 882 pages
Book Rating : 4.1/5 (195 download)

DOWNLOAD NOW!


Book Synopsis Electronic Circuits with MATLAB, PSpice, and Smith Chart by : Won Y. Yang

Download or read book Electronic Circuits with MATLAB, PSpice, and Smith Chart written by Won Y. Yang and published by John Wiley & Sons. This book was released on 2020-01-15 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides practical examples of circuit design and analysis using PSpice, MATLAB, and the Smith Chart This book presents the three technologies used to deal with electronic circuits: MATLAB, PSpice, and Smith chart. It gives students, researchers, and practicing engineers the necessary design and modelling tools for validating electronic design concepts involving bipolar junction transistors (BJTs), field-effect transistors (FET), OP Amp circuits, and analog filters. Electronic Circuits with MATLAB®, PSpice®, and Smith Chart presents analytical solutions with the results of MATLAB analysis and PSpice simulation. This gives the reader information about the state of the art and confidence in the legitimacy of the solution, as long as the solutions obtained by using the two software tools agree with each other. For representative examples of impedance matching and filter design, the solution using MATLAB and Smith chart (Smith V4.1) are presented for comparison and crosscheck. This approach is expected to give the reader confidence in, and a deeper understanding of, the solution. In addition, this text: Increases the reader's understanding of the underlying processes and related equations for the design and analysis of circuits Provides a stepping stone to RF (radio frequency) circuit design by demonstrating how MATLAB can be used for the design and implementation of microstrip filters Features two chapters dedicated to the application of Smith charts and two-port network theory Electronic Circuits with MATLAB®, PSpice®, and Smith Chart will be of great benefit to practicing engineers and graduate students interested in circuit theory and RF circuits.

Circuit Analysis with PSpice

Download Circuit Analysis with PSpice PDF Online Free

Author :
Publisher : CRC Press
ISBN 13 : 1315402211
Total Pages : 805 pages
Book Rating : 4.3/5 (154 download)

DOWNLOAD NOW!


Book Synopsis Circuit Analysis with PSpice by : Nassir H. Sabah

Download or read book Circuit Analysis with PSpice written by Nassir H. Sabah and published by CRC Press. This book was released on 2017-04-21 with total page 805 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electric circuits, and their electronic circuit extensions, are found in all electrical and electronic equipment; including: household equipment, lighting, heating, air conditioning, control systems in both homes and commercial buildings, computers, consumer electronics, and means of transportation, such as cars, buses, trains, ships, and airplanes. Electric circuit analysis is essential for designing all these systems. Electric circuit analysis is a foundation for all hardware courses taken by students in electrical engineering and allied fields, such as electronics, computer hardware, communications and control systems, and electric power. This book is intended to help students master basic electric circuit analysis, as an essential component of their professional education. Furthermore, the objective of this book is to approach circuit analysis by developing a sound understanding of fundamentals and a problem-solving methodology that encourages critical thinking.

PSpice [4.02]

Download PSpice [4.02] PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 378 pages
Book Rating : 4.:/5 (222 download)

DOWNLOAD NOW!


Book Synopsis PSpice [4.02] by :

Download or read book PSpice [4.02] written by and published by . This book was released on 1989 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Computer-aided Circuit Analysis Using SPICE

Download Computer-aided Circuit Analysis Using SPICE PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 326 pages
Book Rating : 4.F/5 ( download)

DOWNLOAD NOW!


Book Synopsis Computer-aided Circuit Analysis Using SPICE by : Walter Banzhaf

Download or read book Computer-aided Circuit Analysis Using SPICE written by Walter Banzhaf and published by . This book was released on 1989 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

PSpice for Analog Communications Engineering

Download PSpice for Analog Communications Engineering PDF Online Free

Author :
Publisher : Springer Nature
ISBN 13 : 3031797612
Total Pages : 139 pages
Book Rating : 4.0/5 (317 download)

DOWNLOAD NOW!


Book Synopsis PSpice for Analog Communications Engineering by : Paul Tobin

Download or read book PSpice for Analog Communications Engineering written by Paul Tobin and published by Springer Nature. This book was released on 2022-05-31 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: In PSpice for Analog Communications Engineering we simulate the difficult principles of analog modulation using the superb free simulation software Cadence Orcad PSpice V10.5. While use is made of analog behavioral model parts (ABM), we use actual circuitry in most of the simulation circuits. For example, we use the 4-quadrant multiplier IC AD633 as a modulator and import real speech as the modulating source and look at the trapezoidal method for measuring the modulation index. Modulation is the process of relocating signals to different parts of the radio frequency spectrum by modifying certain parameters of the carrier in accordance with the modulating/information signals. In amplitude modulation, the modulating source changes the carrier amplitude, but in frequency modulation it causes the carrier frequency to change (and in phase modulation it’s the carrier phase). The digital equivalent of these modulation techniques are examined in PSpice for Digital communications Engineering where we examine QAM, FSK, PSK and variants. We examine a range of oscillators and plot Nyquist diagrams showing themarginal stability of these systems. The superhetrodyne principle, the backbone of modern receivers is simulated using discrete components followed by simulating complete AM and FM receivers. In this exercise we examine the problems ofmatching individual stages and the use of double-tuned RF circuits to accommodate the large FM signal bandwidth.