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Basic Elements of Electric Drive

Basic Elements of Electric Drive: Basic Elements of Electric Drive- Before discussion makes clear that an electric drive system basically consists of a mechanical load to which the required mechanical motion is imparted through a transmission drive usually equipped with gears or pulleys. Gearless transmission is possible sometimes, in which case there exists a direct

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Dynamic Electric

Dynamic Electric: Dynamic Electric – An industrial drive system basically consists of a mechanical working equipment or load, which has to be kept in motion to turn out mechanical work, equipment to do this job, called the prime mover, and a transmission to transfer energy from the prime mover to the mechanical load. Transmission equipment

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Microprocessors and Microcontrollers

Microprocessors and Microcontrollers: 18 Segment Display 68000 Stack and Queue 80186 Microprocessor Architecture 80186 Pin Diagram 80286 Instruction Set 80287 Numeric Data Processor 80387 Numeric Data co-processor 8051 Addressing Modes 8051 Arithmetic Instructions 8051 Interrupt Sources 8085 Instruction Classification 8085 Instruction Set 8085 Machine Cycle 8085 Microprocessor Architecture 8085 Microprocessor Features 8085 Microprocessor Pin Diagram

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Electrical Drives

Electrical Drives: Advantage and Disadvantage of Stepper Motors Application of Variable Speed Drives Armature Voltage Control using Transformer Battery Powered Vehicles Braking of Induction Motor Drive Braking of Single Phase Induction Motor Braking System in Train Brushless DC Motor Drives Choice of Electrical Drives Chopper Control of Separately Excited DC Motor Chopper Control of Series

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Electronic Devices

Electronic Devices: AC Equivalent Circuit of Semiconductor Diode AC Load Line of BJT Amplification in Transistor Amplifier Testing Audio Power Amplifier using IC Amplifier Driver Base Bias in BJT Basic JFET Biasing Circuits Comparison Bias Circuit Design Bias Circuit Thermal Stability Biasing Bipolar Op Amp Circuit Biasing FET Switching Circuits Biasing Transistor Switching Circuits BIFET

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Electric Drives

Electric Drives: 3 Phase Induction Motor Construction Applications of Electric Drives Basic Elements of Electric Drive Block Diagram of Electric Drive System Braking and 4 quadrants Operation Braking of Induction Motor Braking of Synchronous Motor Bridge Rectifier Circuit Diagram with freewheeling diode Characteristics of DC Motor Characteristics of Synchronous Motor Characteristics of Three Phase Induction

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8085 Microprocessor Architecture and its Operations

8085 Microprocessor Architecture and its Operations: Fig. 1.1 shows the 8085 Microprocessor Architecture. It consists of various functional blocks as listed below : Registers Arithmetic and Logic Unit Instruction decoder and machine cycle encoder Address buffer Address/Data buffer Incrementer/Decrementer Address Latch Interrupt control Serial I/O control Timing and control circuitry. Registers: It has eight addressable

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Choice of Electrical Drives

Choice of Electrical Drives: Choice of Electrical Drives depends on a number of factors. Some of the important factors are: Steady state operation requirements: Nature of speed torque characteristics, speed regulation, speed range, efficiency, duty cycle, quadrants of operation, speed fluctuations if any, ratings. Transient operation requirements: Values of acceleration and deceleration, starting, braking and

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Types of Electrical Drives

Types of Electrical Drives: Types of Electrical Drives has the following major parts: load, motor, power modulator, control unit and source. There are large number of loads and each load has its own specific requirements. Some common aspects to loads are discussed and specific requirements of some common loads in later chapters. Here we examine

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