July 2013 | applied electronics engineering


Communication Systems by Simon Haykin Download Ebook Free

Leave a Comment
Communication Systems by Simon Haykin, 4th edition
Fig: Communication Systems by Simon Haykin
Download Communication Systems by Simon Haykin, 4th Edition, Published by John Wiley & Son Inc. with ISBN Number 0-471-17869 with solution manual here for free.

Simon Haykin's "Communication System" is a popular book in the communication engineering field widely used as textbook in many engineering colleges and universities.

It contains theoretical explanation as well as circuit diagram to achieve the underlying communication both in analog and digital domain.

It is useful for anyone interested in communication engineering field and for Circuit Board Designers who may have little theoretical knowledge. This book and the B.P Lathi book Modern Digital and Analog Communication System are two most popular book in the radio and communication engineering field.





Matlab can be used to simulate communication system. The Matlab tutorial page contains algorithm and matlab code for communication system simulation such as amplitude modulation, frequency modulation and other modulation, power spectrum as well as RF circuit simulation.
 

Soldering in Electronics PCB Assembly - Free eBook

Leave a Comment
Download Soldering in Electronics Assembly eBook free written by Mike Judd and Keith Brindley. This book is about soldering aspect in the electronics assembly where electronics components are soldered onto PCB and processes involved in PCB manufacturing step.

Soldering in PCB Electronics Assembly
Soldering in Electronics Assembly
The first chapter is about Soldering wherein Printed Circuit Board, Soldering process, component/solder(CS), solder/component(SC), cleaning and quality topics are briefly introduced. The second chapter is about the electronics assemblies wherein different kinds of joints- through holes joints, surface mounted joints, assembly variations, assembly classification are discussed. The third chapter is about solder itself. Here metallurgical properties of tin/leads alloys, the soldered joints, solderability and protective coating. In the following chapters Lead Free Solders, flux, solder paste, CS soldering processes, SC soldering processes, profiling soldering process, cleaning soldered assemblies,avoiding problems and in the last chapter the standard and specification are explained.

This book provides a valuable guide to those who are working and/or want to work in the PCB board design and PCB manufacturing industry. As such circuit board designers who are using electronics design software such as orcad PCB board design software or Eagle PCB design software will find this book more importantly useful.

Download Link:

http://filepost.com/files/6e712d7a/soldering.pdf

Solution Manual of Digital Communication by Bernard Sklar

Leave a Comment
Download Solution Manual of Digital Communication:Fundamentals and Application by Bernard Sklar. This book is a well written book on modern digital communication with nice explanation using block diagram of digital communication system. The questions and problem at the end of the chapters provides readers with excellent exercises on the topic. This solution manual contains the answers to the problem question contained in the book.

Download link:

http://www.filefactory.com/file/5oyqdt7uhz3x/n/digital_comm_solution.pdf

Digital Communication: Fundamentals and Application eBook free

Leave a Comment
Digital Communication: Fundamentals and Application
Pic: Digital Communication
Download Bernard Sklar Digital Communication: Fundamentals and Application eBook free. This book contains block diagram of digital communication system which is excellent for understanding how different part of a communication system such as encoders, decoders, modulators, DSP etc are inter-related.

Bernard Skalr book explains nicely all the aspect of modern communication system used everywhere nowadays for example the GSM and CDMA mobile communications systems. It explains almost all topics in each sub categories like the channel and source encoding/ decoding such as the RS codes, viterbi decoding, convolution coding, Huffman coding, various modulation techniques such as the BPSK, QPSK modulation, QAM modulation etc.





The book also explains the circuit block in each topics, for example, in QPSK modulation topic the the QPSK modulator block diagram is explained. QPSK modulation is an important modulation technique used in satellite communication system.

Digital media communication has become very important in the modern day. This book exploits the digital media communication by presenting the digital communication system nicely so that the readers can more easily understand the underlying aspect of a modern communication system.

Download Polycom Video Conferencing Software Free

Leave a Comment
Download Polycom Video Conferencing software for free. This desktop video conferencing software is an award winning window OS based software that you can use for group conference, web communication conference. It's high quality voice, video HD quality, multi point and multi network gateway, secure communication encryption is ideal for conducting business communication. Thus it is one of the best web, video and audio conferencing software out there. Download this video conferencing software now from the link below and write an email for its serial key.

Download Link:

http://downloads.polycom.com/video/pvx/PVX8020235.zip

ANSYS Simplorer - Electronics Design Software download free

Leave a Comment
ANSYS Simplorer is a electronics design simulation software that can be used to analyze complex electronics designed system. Download ANSYS Simplorer 11 free from the link provided below. It allows engineers to model and prototype electronics and electrical system to verify components performance and avoid problems in the early stage of the design cycle.

ANSYS Simplorer - Electronics Design Software
Picture: ANSYS Simplorer
Electronics designer can use this software to analyze PCB board with components on it like microcontrollers, power supply circuit and passive devices to see the performance and any problem that might have been left out or not thought about thus avoiding any future problem. It is useful during the circuit schematic board design step and in the final PCB circuit board design step.

Download link for electronics simulation software ansys simplorer

http://uploaded.net/file/zet9pe8x
http://uploaded.net/file/18vea702
http://uploaded.net/file/sd1cubsw
http://uploaded.net/file/e63ttukg
http://uploaded.net/file/nyplqgbs
http://uploaded.net/file/0v1c7l7g

Password file:

http://www.filefactory.com/file/3s5mu8z489d1/n/pw.txt



See circuit design and PCB design tutorial page for more.

PCB Layout and Circuit Optimization Guidelines for RF Design free eBook

Leave a Comment
Download RF Design Guidelines: PCB Layout and Circuit Optimization eBook free. This RF pcb circuit board design guide eBook teaches the various aspect, standard rules, avoiding mistake and layout techniques. It contains two and four layer PCB design guidelines, PCB transmission, ground plane and power plane, current loops and decoupling, PCB parasites, thermal relief pads, VCO and loop filter, transmitter and receiver circuit examples.

This is a useful and concise guide eBook for circuit board designers. Not only PCB board designers who are engaged in PCB fabrication service but also students new to PCB board design will find this enlightening. Electronics hobbyist and students learning how to use printed circuit board layout software will find this very useful

Download Link:

http://www.filefactory.com/file/50y7o1sfajdf/n/rfguidelines.pdf

A Foundation of Digital Communication eBook free

Leave a Comment

A Foundation of Digital Communication

Download A Foundation of Digital Communication eBook free. It is a mathematical rigorous written book on parameters like the representation and manipulation of signal parameters, the signal energy, signal power and deduction of important theorems applicable in digital communication. Broadly it deals with signal analysis such as Fourier Series, Hilbert Spaces, Probability Theory and Decision Theory as applicable in Digital Communication.

Inner products applicable in baseband and passband, some modulation techniques such as Pulse Amplitude Modulation, Matched Filters, Nyquist Theory, Orthogonality of signals, Quadrature Amplitude Modulation(QAM), Gaussian Probability Distribution are some of the more Topics
provided in this book.


Download Link:
http://www.filefactory.com/file/6p4um3xms4n1/n/foundationofdigital.pdf

This book is useful to understand the mathematical underlying concept in digital communication as well as in general communication theory. It is more advanced and more mathematical than other communication theory or RF circuit books. Hence it provides excellent supplement for those who wishes to gain more mathematical insight into communication theory, especially Digital Communication Theory.

ANSYS Designer - RF Circuit Design and Simulation Software

Leave a Comment
Download ANSYS Designer 8 with Nexxim for designing RF circuit board for free. ANSYS designer 8 allows you to design RF circuit board, wireless communication system circuits, RF and microwave antenna, RF Integrated Circuit, SoC(System on Chip) and perform various types of simulation such as the DC analysis, AC analysis, transient analysis, monte carlo, IBIS-AMI analysis and others.

ANSYS Designer 8 with Nexxim
Pic: ANSYS Designer 8 with Nexxim
This electronics design software is useful for engineers to model, prototype and analyze communication system such as RF or microwave system. One example where this software is applicable is in the visualization of the thermal and electromagnetic wave radiation in the RF Printed Circuit Board. Such information can give information about energy leakage which translates into power loss and environment hazard. So engineers can improve and optimize those area in the printed circuit board assembly saving time and energy.




Download ANSYS Designer 8

http://uploaded.net/file/0495g0ge
http://uploaded.net/file/9vcfrj6b
http://uploaded.net/file/bks6ct9v
http://uploaded.net/file/8wj66ab0
http://uploaded.net/file/yk0q9qim
http://uploaded.net/file/ubvxk5rs
http://uploaded.net/file/5samy3ms
http://uploaded.net/file/cz71qtqt
http://uploaded.net/file/d2aulb0m

Password:
http://www.filefactory.com/file/3s5mu8z489d1/pw.txt

ANSYS Designer is widely used by RF engineers for the reasons mentioned above. In the competitive electronics design market it becomes necessary to use great optimization tools. With this software power radiation optimized printed circuit board design is possible.

See circuit design and PCB design tutorial page for more.

Solution Manual of Digital Communication by Bernard Sklar

1 comment
Solution Manual of Digital Communication:Fundamentals and Application
Solution Manual Digital Communication
Download Solution Manual of Digital Communication:Fundamentals and Application by Bernard Sklar. This book is a well written book on modern digital communication with nice explanation using block diagram of digital communication system. The questions and problem at the end of the chapters provides readers with excellent exercises on the topic. This solution manual contains the answers to the problem question contained in the book.

Download link:

http://www.filefactory.com/file/5oyqdt7uhz3x/n/digital_comm_solution.pdf


Download Zuken CADSTAR - circuit board design software free

Leave a Comment
Download CADSTAR from Zuken for free. Zuken's CADSTAR 13 is an electronics design software to create a circuit schematics and to design printed circuit board. It is one of the popular PCB design software used widely by electronics engineers(specially RF engineers).

cadstar circuit pcb design
Picture: CADSTAR
It supports complete management of electronics design project to quickly prototype and manufacture electronics product. Schematic entry, signal integrity, FPGA integration, library tools, logic support, pcb layout design with autorouting, placement and routing, 3D PCB board view, analysis and verification, advanced DRC and pcb manufacturing output such as PCB Gerber file, Bill of Material, PDF output, NC drill files, ODB++ and IPC-D-356 files are some major features of the software.





Download link for Zuken CADSTAR:

http://uploaded.net/file/kqfpdf14
http://uploaded.net/file/l9qr70gh

Password link:

http://www.filefactory.com/file/3s5mu8z489d1/pw.txt

CADSTAR software is also used by PCB board designer for custom circuit board design and PCB design work because it is sophisticated, suited for single user or small team and it provides high speed design cycle.

Download Computer Networking - A Top Down Approach by Kurose, Ross

Leave a Comment
Download Computer Network- A Top Down Approach ebook written by Jim Kurose and Keith Ross for free. This completely describes the computer networking from application layer design to physical layer design with emphasis on internet.

Written by expert professor of MIT Jim Kurose and Keith Ross of Polytechnic Institute of NYU, this book is a popular book on Computer networking and is used as undergraduate and graduate textbook is many US based universities.

The book is about computer network and networking technologies. It describes computer network using a top down approach meaning that it begins by explaining the application layer and down to the physical layer of OSI standard model. While describing it also focuses on the Internet technology. The essential constituents of computer network devices such as router, switches, the communication technology such as DSL, ATM, Optical fibers, wireless network, WLAN, bluetooth, multimedia, communication protocols such IP, UDP, TCP are described nicely.

The book is easy to understand the computer networking concept. Block diagram, illustration with picture makes it easy for student to understand the complex networking, data exchange process and the communication media.



Download Link for Computer Networking:

http://www.filefactory.com/file/65xa5awhhe5h/n/computernetwork.djvu

Download Solid State Electronic Devices eBook free

Leave a Comment
Download Solid State Electronic Devices, 6th edition by Ben.G Streetman and Sanjay Kumar Banarjee eBook free. Written by two senior distinguished professors from Texas University, this book is used by many US universities as an undergraduate textbook on solid state semiconductor device physics.

Solid State Electronic DevicesIt begins with semiconductor crystal and its manufacturing process. The atoms and electrons that make up the device is then explained. The energy band and charge carriers and excess carriers in semiconductor are then explained. A full chapter on semiconductor junction is devoted in details because it is important in understanding the action of the semiconductors in many applications. Bipolar Junction Transistors(BJT), optoelectronic devices, LED(Light Emitting Diodes), Integrated Circuits(ICs), high frequency and high power devices, the p-n-pn diode are each explained in different chapters.


Download link:

http://www.filefactory.com/file/14iotikpeu35/n/solid.djvu

The book is very easy to understand. It is especially useful for new comers into electronics semiconductor devices and physics. Even senior engineering students who have not dwell ed into solid state physics will find this book valuable. Graduate students who are looking for deep knowledge on solid state physics that helps in their theses will also find this book very useful.

Difference between LED and Laser Diodes

LED and Laser Diodes are key components in many application such as optical wireless communication. The key difference between LED and Laser Diodes are:

1. LED produces Incoherent light via spontaneous emission, whereas Laser Diodes can produce coherent light via stimulated emission. (coherent means that the energy, frequency and phase are same for all photons that are emitted)

2. The output power from a LED is linear with the drive current, whereas for Laser Diodes the output power becomes linear with drive current only after some some threshold is surpassed.

3. Both can be made by same compounds but the difference is the structure of the device. Laser Diodes are produced with special structure that permits it to produce coherent light with small spectral optical bandwidth.

4. The optical spectral width of Laser Diodes(0.1nm to 5nm) are smaller than the LED(25nm to 100nm).

5. Laser Diodes operates faster than the LED. Laser Diodes can operate in the GHz range whereas LED operates in the MHz range.

6. Laser Diodes are more vulnerable and sensitive to temperature than LED

7. Laser Diodes are more expensive than LED

8. Laser Diodes requires external additional threshold and temperature compensation circuitry.

9. LED are more reliable than Laser Diodes

10. LED is eye safe whereas Laser Diodes can affect eye depending upon the frequency of operation

 

Signal Mixing using JFET in AM Receiver: Orcad Capture Video Tutorial

This orcad capture video tutorial shows mixing of received AM signal with the locally generated carrier signal using J2N3819 JFET transistor to obtain IF signal. The modeled received AM frequency is 600KHz and the local oscillator carrier signal frequency is 1055KHz, therefore, producing 455KHz intermediate frequency(IF) signal. The waveform of the IF signal is plotted. The schematics can further be implemented into circuit board design.

Video: Signal Mixing using JFET in AM Receiver

The following picture shows the circuit schematics and result

Schematics of Signal mixing using JFET in AM Receiver
Fig: Schematics of Signal mixing using JFET in AM Receiver


Waveform of IF, RF, Carrier signal in JFET Mixing procedure
Fig: Waveform of IF, RF, Carrier signal in JFET Mixing procedure
Spectrum of IF,RF,Carrier Signal in JFET Mixing Procedure
Fig: Spectrum of IF,RF,Carrier Signal in JFET Mixing Procedure

DSB-SC Demodulation using Ring modulator: Video tutorial Orcad Capture

This video tutorial shows the DSB-SC demodulation using the Ring Modulator to recover the original message signal in Orcad Capture. The demodulation is followed by a sinple RC filter tuned to twice the carrier frequency. The message signal frequency is 1KHz and the carrier signal frequency is 10KHz. The Ring Modulator (also called Double Balanced Modulator) is made of ring of D1N4148 diodes. The DSB-SC, original message signal and the recovered message signal waveform and their FFT spectrum is also shown. Circuit Board Design can be implemented further from the schematic diagram.

Video: DSB-SC Demodulation using Ring modulator

Below figure shows some picture of schematic diagram and simulation result:

Schematics of DSB-SC modulation/ demodulation using Ring Modulator
Fig: Schematics of DSB-SC modulation/ demodulation using Ring Modulator

All waveform in one graph obtained in DSB-SC simulation
Fig: All waveform in one graph
DSB-SC Signal Waveform
Fig: DSB-SC Signal Waveform
DSB-SC Signal Spectrum
Fig: DSB-SC Signal Spectrum
Original message spectrum
Fig: Original message spectrum
 Recovered Message Waveform after demodulation
Fig: Recovered Message Waveform
Recovered Message Spectrum after demodulation
Fig: Recovered Message Spectrum

AM(DSB-SC) generation using Ring Modulator: Orcad Capture Video Tutorial

This Orcad Capture video tutorial shows AM signal generation using Ring Modulator. The diode used for the Ring Modulator is D1N4148 diode. The input signal or the message signal of frequency 1KHz, amplitude of 1V is fed into the Ring Modulator also called the Double Balanced Modulator through the primary winding of the center tapped transformer and the carrier signal of frequency 10KHz, amplitude of 3V is fed into the center of the secondary winding. The second transformer is used to get the DSB-SC output. This schematics can further be processed for circuit board design.


The AM circuit schematics using Ring Modulator is shown below:

AM circuit schematics using Ring Modulator
Fig: AM circuit schematics using Ring Modulator
The DSB-SC signal waveform is shown below:

DSB-SC signal waveform
Fig: DSB-SC signal waveform
The FFT transform of the DSB-SC signal is shown below:

FFT transform of the DSB-SC signal
Fig: FFT transform of the DSB-SC signal


Also visit Printed Circuit Board Design Software Download Free


AM modulation using BJT Transistor: Orcad capture Video Tutorial

This video shows how to circuit design of AM modulation using single BC108 transistor in orcad capture. The BC108 transistor is a NPN transistor. The frequency and amplitude of the audio signal is 10KHz and 2.5V and the frequency and amplitude of carrier signal is 2MHz and 0.68V. The audio signal is applied to the emitter and the carrier signal is applied to the base of the transistor. This circuit can further be implemented into circuit board design with cadence orcad pcb tool. See Download Printed Circuit Board Software free


Orcad capture Video Tutorial:
AM modulation using BJT Transistor