Lovely Professional University‚Punjab Format For Instruction Plan [for Courses with Lectures and Tutorials Course No ece201 Cours Title ELECTRONIC DEVICES AND CIRCUITS Course Planner ECE201 ELECTRONIC DEVICES AND CIRCUITS 15330 :: Ishan Luthra Text Book: Other Specific Book: Lectures Tutorial Practical Credits 3 1 0 1 JACOB MILLMAN & HALKIAS‚ INTEGRATED ELECTRONICS: ANALOG & DIGITAL CIRCUIT SYSTEMS‚ Mc GRAW HILL‚ 1991 EDITION‚ 41 PRINT‚ 2005. 2 1. ROBERT
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* Table of Contents 1. Introduction 1 2. Background 2 3. Power Electronic Converters 4 4. Control of Motors Driving Grinding Mills in Mines 5 4.1. Load Commutated Inverter Drive 6 4.2. Cycloconverter 8 4.3. Slip Control Variable Speed Drives 9 5. Mechanical Problems of Large Grinding Mills. 11 6. Electrical Problems Caused by large Grinding Mills 12 7. Conclusion 13 7. References 14 Introduction In the mining industry grinding mills are used to crush mined ore. To take advantage
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Abstract: Phase absence is a very common and severe problem in any industry‚ home or office. Many times one or two phases may not be live in three phase supply. Because of this‚ many times‚ some electrical appliances will be on in one room and OFF in another room. This creates a big disturbance to our routine work. This project is designed to check the availability of any live phase‚ and the load will be connected to the particular live phase only. Even a single phase is available‚ and then also
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and Albert Szent-Gyorgi in discussion of so-called "donor-acceptor" systems and developed the study of charge transfer and energy transfer in molecules. Likewise‚ a 1974 paper from Mark Ratner and Avi Aviram 1 illustrated a theoretical molecular rectifier. Later‚ Aviram detailed a single-molecule field-effect transistor in 1988. Further concepts were proposed by Forrest Carter of the Naval Research Laboratory‚ including single-molecule logic gates. Apart from the Aviram and Ratner proposal
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International Journal of Computer and Electrical Engineering‚ Vol. 2‚ No. 1‚ February‚ 2010 1793-8163 Doubly-Fed Induction Generator for Variable Speed Wind Energy Conversion SystemsModeling & Simulation B.Chitti Babu ‚ K.B.Mohanty Abstract— The aim of this paper is to present the complete modeling and simulation of wind turbine driven doubly-fed induction generator which feeds ac power to the utility grid. For that‚ two pulse width modulated voltage source converters are connected back to back
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ELECTROMAGNETIC BRAKING SYSTEM A PROJECT REPORT Abstract The Project is based on one of the modern braking technologies‚ with the introduction of ABS (Anti-lock Braking System)‚ Brake-by-wire technology‚ electronic brake force distribution (EBD)‚ traction control system‚ emergency brake assist‚ or electronic stability control (ESC). The braking technology has reached a new peak. In this project electricity is applied to the coil at the time of braking. This develops a magnetic field around it and
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1 CHARACTERISTICS AND OTHER DIODE APPLICATIONS AIM:-To observe and draw the Forward and Reverse bias V-I Characteristics of a P-N Junction diode and diode applications . APPARATUS:P-N Diode 1N914 Regulated Power supply (0-30v) Resistor 1KΩ Ammeters (0-200 mA‚ Voltmeter (0-2V/200 V) Bread board Connecting wires THEORY:A p-n junction diode conducts only in one direction. The V-I characteristics of the diode are curve between voltage across the diode and current through the diode. When external
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1. Describe the basic features of electricity at a fundamental level. Ans: Electricity is the movement of electrons. As long as electrons in an atom are balance and revolve precisely in orbit around their sun or atom nucleus there is no electron flow or electric current in a wire. These atoms are the smallest particle into which an element can be divided without losing its property. A single atom consists of three basic components: a Proton‚ a Neutron and an Electron. An atom is similar to a small
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1.INTRODUCTION Most high-precision machines are positioning stages with Multiple degrees of freedom(DOF)‚ which often consist of cascaded long-and short-stroke linear actuators that are supported by mechanical or air bearings. Usually‚ the long stroke actuator has micrometer accuracy‚ while the Submicron accuracy is achieved by the short-stroke actuator. To build a high-precision machine‚ as much disturbances as possible should be eliminated. Common sources of disturbances are vibrations
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http://www.plating.com/platingtechnical/poorsdhesion.htm POOR ADHESION Poor adhesion results in the chrome deposit separating from the substrate. This can occur as either peeling or blistering of the chromium layer‚ and can happen immediately as the part comes out of the bath‚ or later when it is put into service. Unfortunately‚ a viable nondestructive test for adhesion is not available. An inconclusive tests is to immerse the part in boiling water AP‚ until it is up to temperature‚ then immediately
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