Seminar report on HVDC TECHNOLOGY AND SHORT CIRCUIT CONTRIBUTION OF HVDC LIGHT By Jijo Francis DEPARTMENT OF ELECTRICAL & ELECTRONICS ENGINEERING FEDERAL INSTITUTE OF SCIENCE AND TECHNOLOGY (FISAT) MOOKKANNOOR P O‚ ANGAMALY-683577‚ Affiliated to MAHATMA GANDHI UNIVERSITY 2011 FEDERAL INSTITUTE OF SCIENCE AND TECHNOLOGY (FISAT) Mookkannoor P O‚ Angamaly-683577. Affiliated to MAHATMA GANDHI UNIVERSITY‚ Kottayam- 686560 DEPARTMENT OF ELECTRICAL & ELECTRONICS ENGINEERING
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Transmitters Light emitting diode (LED) in electronics a semiconductor device that emits infrared or visible light when charged with an electric current. Visible LEDs are used in many electronic devices as indicator lamps‚ in automobiles as rear-window and brake lights‚ and on billboards and signs as alphanumeric displays or even full-color posters. Infrared LEDs are employed in autofocus cameras and television remote controls and also as light sources in fiber-optic telecommunication systems.
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1. INTRODUCTION Generally when most people think about electronics‚ they may initially think of products such as cell phones‚ radios‚ laptop computers‚ etc. others‚ having some engineering background‚ may think of resistors‚ capacitors‚ etc. which are the basic components necessary for electronics to function. Such basic components are fairly limited in number and each having their own characteristic function. Memristor theory was formulated and named by Leon Chua in a 1971 paper. Chua
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MINI PROJECT REPORT ON “Automatic Railway Gate Controller Using Stepper Motor” SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENT FOR THE REWARD OF THE DEGREE BACHELOR OF TECHNOLOGY IN ELECTRONICS & COMMUNICATION ENGINEERING SUBMITTED BY M.KAVITHA
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Conductors and Insulators of Electricity A major reason electricity works is because of conductors. First metal‚ water‚ tall trees and tall items are good conductors because lightning is attracted to them. These materials have many mobile electrons. Metal is an easy substance for lightning to travel through so metals are good conductors. However‚ rubber is a bad conductor because lightning bounces off of it. A bad conductor is called an insulator. An insulator has a few mobile electrons. It is
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. Moletronics is expected to touch almost every aspect of our lives‚ right down to the water we drink and the air we breathe. Experimental work has already resulted in the production of molecular tweezers‚ a carbon nanotube transistor‚ and logic gates. Theoretical work is progressing as well. James M. Tour of Rice University is working on the construction of a molecular computer. Researchers at Zyvex have proposed an Exponential Assembly Process that might improve
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Wireless Power Transmission for Solar Power Satellite T.S. Hasarmani Department of Electrical Engineering‚ Bharati Vidyapeeth University’s College of Engineering‚ Pune 411043 santosh_hasarmani@rediffmail.com __________________________________________________________________________________________ Abstract --A great concern has been voiced in recent years over the extensive use of energy‚ the limited supply of resources‚ and the pollution of the environment from the use of present energy
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Digital Computer Electronics Third Edition Albert Paul Malvino‚ Ph.D. Jerald A. Brown ~ 1 I I- I I I I I _j 1 I I I GLENCOE McGraw-Hill New York‚ New York Columbus‚ Ohio Woodland Hills‚ California Peoria‚ Illinois This textbook was prepared with the assistance of Publishing Advisory Service. LSI circuit photo: Manfred Kage/Peter Arnold Inc. To my wife‚ Joanna‚ who encourages me to write. And to my daughters‚ Joanna‚ Antonia‚ Lucinda‚ Patricia‚ and Miriam‚ who keep me young. -A.P
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EECE 352: 352 PN Junctions Peyman Servati y Outline • • • • Diffusion and drift currents Current continuity PN Junctions Diodes‚ photodetectors‚ solar cells Diffusion of Electrons Movement of electrons and holes (charge carriers) results in ( g ) conduction in materials. Electrons and holes in solids move based on Brownian motion (random walk). In this random movement‚ electrons effectively move from a movement location where the concentration is higher to where the concentration is
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concentrations and fermi levels in emiconductor‚ Generation and recombination of charges‚ diffusion and continuity equation‚ Mass action Law‚ Hall effect. UNIT 2: Junction diodes‚ Diode as a ckt. element‚ load line concept‚ clipping and clamping circuits‚ Voltage multipliers. Construction‚ characteristics and working principles of UJT UNIT 3: Transistor
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