of energy consumption‚ but the apparatus to be built could be a very practical concept for those on self-supported bike tours or those living temporarily in situations without electricity. Electronic parts needed 1. circuit board 2. bridge rectifier‚ 100 V‚ 1.4 A 3. capacitor‚ 1000 micro Farad‚ Radial-Lead Electrolytic‚ 35 V DC 4. voltage regulator‚ 7805‚ +5 V DC‚ 1 A Other components 1. cell phone charger 2. 12 V 6 W bicycle headlight generator 3. bicycle Circuit
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Electronic component ------------------------------------------------- ------------------------------------------------- Various components | An electronic component is a basic electronic element usually packaged in a discrete form with two or more connecting leads or metallic pads. Components are intended to be connected together‚ usually by soldering to a printed circuit board‚ to create an electronic circuit with a particular function (for example an amplifier‚ radio receiver‚ or oscillator)
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Turn-On‚ Di/Dt Protection‚ Dv/Dt Protection‚ Thyristor Turn-Off‚ Thyristor Types‚ Series Operation Of Thyristors‚ Parallel Operation Of Thyristors‚ Thyristor Firing Circuits‚ Unijunction Transistor‚ Programmable Unijunction Transistor 3. CONTROLLED RECTIFIERS Introduction‚ Principle Of Phase-Controlled Converter Operation‚ Single-Phase Semiconverters‚ Single-Phase Full
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chapter 1 [pic] 1.1 Objectives of the Study Prepaid energy meter are being used worldwide to improve the collection of funds for the energy used. Weather it is developed nation or developing nation all electricity boards are facing two major issues 1. Power Theft 2. Collection of funds In the existing system the above two problems are non predictable and time consuming process respectively. To overcome these things in the proposed system Cal cards has developed and implemented
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ABSTRACT Direct Billing System for Super Market Large grocery stores are nowadays used by millions of people for the acquisition of an enlarging number of products. Product acquisition represents a complex process that comprises time spent in corridors‚ product location and checkout queues. On the other hand‚ it is becoming increasingly difficult for retailers to keep their clients loyal and to predict their needs due to the influence of competition and the lack of tools that discriminate
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SYNCMTR1 Synchronous Motor Characteristics Copyright 2004 Kilowatt Classroom‚ LLC. Synchronous Motors are three-phase AC motors which run at synchronous speed‚ without slip. (In an induction motor the rotor must have some “slip”. The rotor speed must be less than‚ or lag behind‚ that of the rotating stator flux in order for current to be induced into the rotor. If an induction motor rotor were to achieve synchronous speed‚ no lines of force would cut through the rotor‚ so no current would
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Acknowledgement We would like to acknowledge the department of ECE for its acceptance of the project title and invite us to develop our initiation for the development of the project. And we also like to give our great thanks to our advisor Addishiwot Tadesse (M.Sc.) for his several suggestions‚ precious advice and encouragements looking as his burning issue in spite of his very busy schedule. LIST OF ACRONYMS GSM: - Global
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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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Gautum Head of the Domain Table of Content • Acknowledgements. • Introduction to the Project. • Circuit Diagram. • Working of Security System • Power Supply Description ▪ Transformer ▪ Bridge Rectifier ▪ Shunt Capacitor ▪ Voltage Regulater • GSM • About The Sensors ▪ Gas Sensor ▪ Infraed Sensor ▪ Fire Sensor • Component Discription ▪ A . Microcontroller ▪ B . Transformer ▪ C Resistors
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Etymology of the Word Thyristor A thyristor is a solid-state semiconductor device with four layers of alternating N and P-type material. The thyristor or Silicon Controlled Rectifier (SCR) was proposed by William Shockley in 1950 and supported by Bell Laboratories‚ formerly known as AT&T Bell Laboratories. It was developed in 1956 by power engineers at General Electric (G.E.) led by Gordon Hall and commercialized by G.E. ’s Frank W. "Bill" Gutzwiller (1). There are various types of thyristors;
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