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Saturday, 30 July 2016

Analog and RF Circuits

By Ian Hickman
Hickman's latest guide is essential reading for anyone designing analog circuits. This book, along with the recent Analog Circuits Cookbook also available from Newnes, will enlighten, inform, interest and even amuse readers, and give them the ability to tackle analog and RF design problems with confidence.
Based on articles published in Electronics World, this book covers such topics as RF amplifiers, oscillator design and behaviour, waveform analysis, optoelectronics, filters and op-amps, as well as offering intriguing insights in chapters such as Cautionary Tales for Circuit Designers, Circuit Reflections and Is Matching Easy?
Ian Hickman is one of the world's leading analog and RF engineers. Using illustrations and examples rather than tough mathematical theory, Ian Hickman presents a wealth of ideas and tips based on his own workbench experience.

Analog Communication

By Godse and Bakshi
Amplitude Modulation Introduction. Amplitude Modulation : Time-domain description, Frequency-domain description, Generation of AM wave : Square law modulator, Switching modulator. Detection of AM waves : Square law detector, Envelope detector. Double sideband suppressed carrier modulation (DSBSC) : Time-domain description. Frequency-domain representation. Generation of DSBSC waves : Balanced modulator, Ring modulator. Coherent detection of DSBSC modulated waves. Costas loop. Quadrature carrier multiplexing. Hilbert transform, Properties of Hilbert transform, Pre-envelope, Canonical representation of bandpass signals, Single sideband modulation, Frequency-domain description of SSB modulated signals, Frequency discrimination method for generating an SSB modulated wave, Time-domain description, Phase discrimination method for generating an SSB modulated wave, Demodulation of SSB wave. Vestigial sideband modulation, Frequency-domain description, Generation of VSB modulated wave, Time-domain description, Envelop detection of VSB wave plus carrier, Comparison of amplitude modulation techniques, Frequency translation, Frequency division multiplexing, Application : Radio broadcasting, AM radio, Television, Color television, High definition television.Angle Modulation Basic definitions, Frequency modulation, Narrow band frequency modulation, Wide band frequency modulation, Transmission bandwidth of FM waves, and many more...

Electrical Machines-II

U A Bakshi
Single Phase Transformers - Construction and operation : Singh phase transformers - types - constructional details - minimization of hysteresis and eddy current losses - e.m.f. equation - operation on no load and on load - phasor diagrams.

Electronic devices and circuits

By Salivahanan
Electronic devices and circuits surround our daily existence in an indispensible fashion. Thereby, the authors, in this book have attempted to reveal the complexities of the world of electronics in an extremely simplified manner, using pedagogical features to illustrate and exemplify the concepts thoroughly. This revised edition of Electronic Devices and Circuits is a treat for the young readers, and will generate and maintain an interest in the subject which will stimulate a sound learning.

Thursday, 28 July 2016

Observe different types of keyboard and mouse and observe the internal circuits.


Keyboard

Wired Keyboard
Keyboards are an indispensable accessory for a computer. One of the most basic input devices, computer keyboards are used in navigation, execution of processes, programming and several other purposes. Several software based application directly derive their existence from a keyboard. For instance, social networking websites, programming languages, navigation over the computer menus etc. utilize a computer keyboard. Even this very article wouldn’t have been possible without a keyboard.

PC/XT

Digital Communication

J S Chitode

Pulse Digital ModulationElements of digital communication systems, Advantages of digital communication systems, Elements of PCM : Sampling, Quantization & Coding, Quantization error, Compading in PCM systems. Differential PCM systems (DPCM).Delta ModulationDelta modulation, its drawbacks, Adaptive delta modulation, Comparison of PCM and DM systems, Noise in PCM and DM systems.Digital Modulation TechniquesIntroduction ASK, FSK, PSK, DPSK, DEPSK, QPSK, M-ary, PSK, ASK, FSK, similarity of BFSK and BPSK.Data TransmissionBase band signal receiver, Probability of error, the optimum filter, Matched filter, Probability of error using matched filter, Coherent reception, Non-coherent detection of FSK, Calculation of error probability of ASK, BPSK, BFSK, QPSK.Information TheoryDiscrete messages, Concept of amount of information and its properties, Average information, Entropy and its properties, Information rate, Mutual information and its properties.Source CodingIntroduction, Advantages, Shannon's theorem, Shannon-Fano coding, Huffman coding, Efficiency calculations, Channel capacity of discrete and analog channels, Capacity of a Gaussian channel, Bandwidth-S/N trade off.Linear Block CodesIntroduction, Matrix description of Linear Block codes, Error detection and error correction capabilities of Linear block codes, Hamming codes, Binary cyclic codes, Algebraic structure, Encoding, Syndrome calculation, BCH Codes.Convolution CodesIntroduction, Encoding of convolution codes, Time domain approach, Transform domain approach, Graphical approach : state, Tree and trellis diagram decoding using Viterbi algorithm.

Electronics & Microprocessors

A P Godse
Semiconductors and RectifiersClassification of solids based on energy band theory - Intrinsic Semiconductors - Extrinsic semiconductors - P type and N type - PN junction - Zener effect - Zener diode characteristics - Half wave and full wave rectifiers - Voltage regulation.Transistors and AmplifiersBipolar junction transistor - CB, CE, CC configuration and characteristics - Biasing circuits - Class A, B and C amplifiers - Field effect transistor - Configuration and characteristic of FET amplifier - SCR, Diac, Triac, UJT - Characteristics and simple applications - Switching transistors - Concept of feedback - Negative feedback - Application in temperature and motor speed control.Digital ElectronicsBinary number system - AND, OR, NOT, NAND, NOR circuits - Boolean algebra - Exclusive OR gate - Flip flops - Half and full adders - Registers - Counters - A/D and D/A conversion.8085 Microprocessor Block diagram of microcomputer - Architecture of 8085 - Pin configuration - Instruction set - Addressing modes - Simple programs using arithmetic and logical operations.Interfacing and Applications of Microprocessor Basic interfacing concepts - Interfacing of Input and Output devices - Applications of microprocessor Temperature control, Stepper motor control, Traffic light control.

Electrical Machine III

U A Bakshi

Electrical Machine 3 By M.V.Bakshi & U.A.Bakshi is a free book for electrical engineers. Electrical Machine 3 By M.V.Bakshi & U.A.Bakshi contains the advance level of electrical machine parts and studies . However this book also highlighted the most important parts of machine and fundamentals. For understanding machines , its part and operation this is one of the best book for electrical engineers.  

Electrical Machine-I

U A Bakshi

TransformersConstruction, Polarity test, Sumpner's test, All day efficiency.Autotransformer Volt-amp relation, Efficiency, Advantages and disadvantages and applications, Three-phase transformers : Connections, Three-phase bank of single phase transformers, Scott connections, Instrument transformers.D.C. MachinesD.C. Machine : Construction, emf and torque equations. Armature reaction, Commutation, Performance characteristics of motors and generators, Starting of motors, Speed control, Losses and efficiency.Three Phase Induction MotorConstruction, Rotating magnetic field and Principle of operation, Equivalent circuit, Torque production, Torque-slip characteristics, Speed control, Starting of squirrel cage and Slip ring induction motors.Three Phase Synchronous MachinesAlternator : Construction, EMF equation and effects of pitch and distribution factors, Phasor diagram, Armature reaction, Voltage regulation and its determination by synchronous impedance method, Methods of synchronization.Synchronous Motor : Principle of operation and starting torque and mechanical power developed, Effect of excitation on line current, (V-curves).Fractional H.P. MotorsSingle phase induction motor : Construction, Revolving field theory and principle of operation, equivalent circuit and starting methods. Two-phase servo-motor, Stepper motor, and their applications.Industrial ApplicationsConcept of braking in dc and ac motors, Two quadrant and four quadrant operation of dc and three phase induction motors, Industrial applications of dc and ac motors.

Thursday, 7 July 2016

Basic Electrical Engineering

By U. A. Bakshi and V. U. Bakshi
Basic Electrical Engineering By Bakshi gives a strong review of electrical building standards intended for both electrical and in addition non-electrical designing understudies. With the liberal utilization of practical illustrations and various activities, it offers an unparalleled presentation to Electricity Fundamentals, Network Theory, Electromagnetism, Electric Machines, Transformer sand Measuring Instruments.

Circuit Theory

This is designed for a first course in Circuit Analysis which is usually accompanied by a set of labs. It is assumed that students are in a Differential Equations class at the same time. Phasors are used to avoid the Laplace transform of driving functions while maintaining a complex impedance transform of the physical circuit that is identical in both. 1st and 2nd order differential equations can be solved using phasors and calculus if the driving functions are sinusoidal. The sinusoidal is then replaced by the more simple step function and then the convolution integral is used to find an analytical solution to any driving function. This leaves time for a more intuitive understanding of poles, zeros, transfer functions, and Bode plot interpretation.

Tuesday, 5 July 2016

Electronic & Electrical Measuring Intruments & Machines

Measuring InstrumentsPrinciple of Permanent Magnet Moving Coil (PMMC), Moving Iron Instruments, Ammeters & Voltmeters, Operating Principles of the Electrodynamometer Instruments. Wattmeter, Energy meter, Electrostatic Instruments, Rectifier type Instruments, Extension of Ranges of Voltmeters and Ammeters. Principle of Power Factor & Frequency meter. Use of Current & Potential Transformers. Measurement of R, L, and CMeasurement of low, medium & high resistances Wheatstone & Kelvin bridge, Ohmmeter, Megger. A.C. bridge circuits for measurement of inductance & capacitance-Maxwell s, Hay s & Anderson s bridge, Schering bridge.PotentiometersPrinciples of D.C & A.C. Potentiometers & their applications.Magnetic Properties of MaterialsThe magnetic dipole movement, diamagnetism. The origin of permanent magnetic dipoles in matter, Paramagnetism, Ferromagnetism.D.C. MotorsPrinciples of working, E.M.F. equation, back EMF, torque equations, methods of excitation, characteristics of D.C. shunt, series & compound motors, speed torque characteristic of D.C. motors, starters, principles of speed control. Three Phase Induction MotorsRotating magnetic field, construction & principle of operation, slip, rotor frequency, development of equivalent circuit, torque equation, maximum torque, torque speed characteristics, speed control. Starting methods, motor ratings.Stepper MotorPrinciple of working, characteristics & applications.

Microprocessor and Microcontroller System

By A.P. Godse and D.A. Godse
Microprocessor and microcomputer system, Functional pin diagram and detailed architecture of 8085 microprocessor, De-multiplexing of address / data bus, Generation of control signals, Instruction set, Addressing modes. Programming for arithmetic and logical operation, Subroutine concepts.Functional pin diagram and architecture of 8031/51 microcontroller, Port structure, Instruction set and assembly language programming.Timer / counter, Modes of operation, Programming timer / counter. Interrupt structure and interrupts programming.Serial communication programming in 8051 (Only standard 8-bit UART mode).Memory interfacing (RAM, ROM, EPROM) - Basic concept in memory interfacing and address decoding.Programmable peripheral interface (8255) - Block diagram, Control words and modes and interfacing.Interfacing to external RAM and ROM, LED, Switch, 7-segment display, Multiplexed 7-segment display, Matrix key-board, Liquid crystal display, DAC, ADC, Stepper motor with programs.Buses and Protocols : RS 232, RS 485, , MODBUS, IEEE 488.Interfacing to EEPROM 93C46 / 56 / 66, 24C16 / 32 / 64, RTC DS1307.Conceptual study of various derivatives of 8051 microcontroller from different manufacturers like Atmel, Phillips etc. Introduction to PIC microcontroller.

Saturday, 2 July 2016

Analog Electronics

1 FREQ. RESPONSE OF NEG. FEEDBACK AMPLIFIER
2 BUILD & TEST COLPITT OSCILLATOR
3 BUILD & TEST HARTLEY OSCILLATOR
4 BUILD & TEST WEINS BRIDGE OSCILLATOR
5 BUILD & TEST UJT AS A RELAXATION OSCILLATOR
6 OUTPUT CHARACTERISTICS OF N-CHANNEL JFET
7 CALCULATE rd, gm and μ for JFET
8 MEASURE OP-AMP PARAMETERS
9 STUDY OF INVERTING AMPLIFIER USING OP-AMP
10 STUDY OF NON-INVERTING AMPLIFIER USING OP-AMP
11 STUDY OF DIFFERENTIATING CIRCUIT USING OP-AMP
12 STUDY OF INTEGRATING CIRCUIT USING OP-AMP
13 STUDY OF OP-AMP AS SUMMING AMPLIFIER
14 STUDY OF OP-AMP AS V TO I CONVERTER
15 ASTABLE MULTIVIBRATOR USING IC 555
16 MONOSTABLE MULTIVIBRATOR USING IC 555
17 BISTABLE MULTIVIBRATOR USING IC 555