INTRODUCTION 1.0 INTRODUCTION Private branch exchange system (PBXs) operates as a connection within private organizations usually a business. Because they incorporate telephones, the general term “extension” is used to refer to any end point on the branch. The PBX handles calls between these extensions. The primary advantage of PBXs was cost savings on internal phone […]
CHAPTER 1 1. INTRODUCTION The VLSI was an important pioneer in the electronic design automation industry. The “lambda-based” design style which was advocated by carver mead and Lynn Conway offered a refined packages of tools.. VLSI became the early hawker of standard cell (cell-based technology). Rapid advancement in VLSI technology has lead to a new […]
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Get startedIntroduction Alight-emitting diode(LED) is asemiconductorlight source. LEDs are used as indicator lamps in many devices and are increasingly used for otherlighting. Introduced as a practical electronic component in 1962,early LEDs emitted low-intensity red light, but modern versions are available across thevisible,ultravioletandinfraredwavelengths, with very high brightness. When a light-emittingdiodeis forwardbiased(switched on),electronsare able torecombinewithelectron holeswithin the device, […]
CHAPTER 1 INTRODUCTION 1.1 Project Overview A factor of main economic importance and safety in electrical utilities and industrial customers of electricity is dependent on the operation of the power transformer. In the current economic situation, most of the supply utilities and industries tighten their control on production spending of capital and make savings in […]
ABSTRACT Power electronics is playing an important role in transmission and utilization of electrical power due to its capability of processing electric power in most efficient and cost-effective way. However, the nonlinear characteristics of power electronic devices give rise to two important limitations; they generate harmonics and draw lagging current from the utility. In recent […]
1.0 Introduction In Malaysia, each house using electricity at Tenaga Nasional Berhad (TNB). With the use of electricity, the family in each house to do the activities and generate electrical appliances such as air conditioners, refrigerators, washing machines and others. Basically when using a lot of electricity, home users should pay a lot of bills. […]
ROBOT DESIGN Section 1 – Requirements 1.1 Introduction Robot is a kind of automatic machine, which has particularly a series of similar competences as human-being, such as sensing capability, planning capability, moving capability and so on. The word ‘Robot’ was referred by Czech writer Karel Čapek in his play R.U.R (Rossum’s Universal Robots), which was […]
ABSTRACT The aim of the project ‘PC MONITORING OF DYNAMOMETER’ is to measure and display the Speed Torque and Power of Motor. The behaviour of motor under load and no load characteristics have been studied with the help of virtual instrumentation. The variations in the motor Speed, Torque and Power at no load torque and […]
CHAPTER 1 INTRODUCTION 1.1 Motivation Phase locked loop (PLL) [1-3] is the heart of the many modern electronics as well as communication system. Recently plenty of the researches have conducted on the design of phase locked loop (PLL) circuit and still research is going on this topic. Most of the researches have conducted to realize […]
Chapter 1 Introduction The project which we have chosen to do as our final year project for the under graduate program involves the characterization of micro strip patch antenna. In this project we have carried out simulations of different types of antennas, which include dipole, monopole and patch. The purpose of designing all of these […]
Unidade 6: Instalações industriais 6.1 Primeiras palavras Esta unidade apresenta os elementos elétricos fundamentais de uma planta industrial, trata dos transformadores de energia e dos motores elétricos. Vamos entender o funcionamento e os cuidados necessários para prolongar a vida útil desses equipamentos. 6.2 Problematizando o tema Em nossas residências a tensão elétrica normalmente tem dois […]
Fabrication of YBa2Cu3O7-δ and Determination of its Superconducting Transition Temperature A superconducting material is one which below a certain critical temperature exhibits, amongst other remarkable traits; a total lack of resistivity, perfect diamagnetism and a change in the character of the specific heat capacity. The BCS theory describes perfectly the phenomenon of superconductivity in low […]
Assessment Task Topic: The Photoelectric Effect 1. Introduction The photoelectric effect is the name given to the phenomenon whereby electrons are emitted from a metal when exposed to electromagnetic radiation of the appropriate frequency. It was first discovered by Heinrich Hertz in 1887, but remained a conundrum to many scientists who sought to explain it, […]
Abstract – This paper presents a topology for direct online starting of Induction Motors (I.M.s) using Thyristor Binary Switched Capacitor (TBSC) compensator operating in closed loop. TBSC is based on a chain of Thyristor Switched Capacitor (TSC) banks arranged in binary sequential manner. A transient free switching of TBSCs is carried out. Proposed topology allows […]
The variation of light intensity with distance; namely the inverse square law of light intensity with distance. Background Theory Light emitted from any kind of source, e.g. the sun, a light bulb, is a form of energy. Everyday problems such as lighting required for various forms of labouring or street illumination, require one to able […]
Transistor A transistor is a semiconductor device used to amplify and switch electronic signals. It is made of a solid piece of semiconductor material, with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor’s terminals changes the current flowing through another pair of […]
INTERNATIONAL JOURNAL OF SYSTEMS APPLICATIONS, ENGINEERING & DEVELOPMENT Volume 1, Issue 1, 2007 An Approach of Condition Monitoring of Induction Motor Using MCSA Neelam Mehla, Ratna Dahiya Abstract—With the industrial growth, it has become necessary to monitor the condition of the machine/system. Electrical machine being the most sensitive part has great importance for the researcher […]
Power factor: The power factor of an AC electric power system is defined as the ratio of the real power flowing to the load to the apparent power, and is a dimensionless number between 0 and 1 (frequently expressed as a percentage, e. g. 0. 5 pf = 50% pf). Real power is the capacity […]
ABSTRACT: This is the world of VLSI . Presently all most all the people are using technology in various forms like mobiles, i-pods, i-phones etc. , Every one enjoys technology but only a few know about VLSI design in world design and its working. Coming to VLSI it is the process of creating integrated circuits […]
In electronics, an integrated circuit (also known as IC, microcircuit, microchip, silicon chip, or chip) is a miniaturized electronic circuit (consisting mainly of semiconductor devices, as well as passive components) that has been manufactured in the surface of a thin substrate of semiconductor material. Integrated circuits are used in almost all electronic equipment in use […]
