An Earth Leakage Circuit Breaker (ELCB) (now referred to as residual current circuit breaker) is a safety device used in electrical installations with high earth impedance to prevent shock. History ELCBs were mainly used on TT earthing systems. Nowadays‚ ELCBs have been mostly replaced by residual-current devices (RCDs). However many ELCBs are still in use. Early ELCBs responded to sine wave fault currents‚ but not to rectified fault current. Over time‚ filtering against nuisance trips has also
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Case Circuit Board Corporation Background/Introduction Circuit Board Corporation creates and manufactures printed circuit boards. The founder‚ the late Dieter Adams had started Circuit Board Corporation in 1961‚ were the computer industry was in its introductory stages. The company started by designing and manufacturing PCB’s for minicomputer companies. Maggie Adams which was Dieter Adams beloved wife was employed as a part time employee and secretary of the board to CEO after her husband died
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Laboratory Report Title of Experiment: Series and Parallel Circuits Date Given: January 28‚ 2013 AIM: To investigate the circuits to tell whether the resistors are in parallel or in series also to determine the internal resistance of a 1.5V cell. THEORY: In this experiment it was expected of the experimenter to have a basic knowledge of circuits in both aspects theoretically and practically. A basic circuit comprises of a cell or power supply (some electric driving force) a
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Series and Parallel Circuits Name: Angelica Castro Directions: 1. Go to the following website: http://phet.colorado.edu/en/simulation/circuit-construction-kit-ac-virtual-lab 2. Click “Run now.” You now have the raw material to create a circuit. Take a moment to look over the site and find all the different materials. To build a circuit you will need several wires‚ a light bulb‚ a voltage source‚ a voltmeter‚ and a non – contact ammeter. Play with it to see how to grab and manipulate
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Alcohol breathalyzer circuit using 8051 microcontroller. Three digit display 1 of 9 http://www.circuitstoday.com/breathalyzer-circuit-using-8051 Home Forums Datasheets Lab Manual Testing Components Buy Project Kits Custom Search admin June - 5 - 2013 0 Comments Alcohol Breathalyzer circuit using 8051 microcontroller (AT89S51). This article is about a breathalyzer circuit using 8051 microcontroller which outputs the blood alcohol content (BAC) from the breath. The BAC is displayed in percentage
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Alternating Current RC and LRC Circuits Lab 7 November 12‚ 1012 109989- 5:30 PM Abstract Within this experiment we recorded that the theoretical capacitance of 0.470 is accurate with the capacitor from box C. The LRC circuit is proven to have a voltage accurate with the measured generator voltage because the largest percentage of error ‚ 0.55 % error‚ is much lower than 5% error. Summary The idea of the alternating current RC and LRC circuits lab is to record the value of
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Integrated circuit design‚ or IC design‚ is a subset of electrical engineering and computer engineering‚ encompassing the particular logic and circuit design techniques required to design integrated circuits‚ or ICs. ICs consist of miniaturized electronic components built into an electrical network on a monolithic semiconductor substrate by photolithography. IC design can be divided into the broad categories of digital and analog IC design. Digital IC design is to produce components such as microprocessors
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TERM PAPER ON “ASYNCHRONOUS v/s SYNCHRONOUS CIRCUITS” COMPUTER ORGANIZATION AND ARCHITECTURE (CSE 2011) SUBMITTED BY:- RAGHVENDRA SINGH ACKNOWLEDGEMENT I would like to take this opportunity to thank certain people without whom I would not have been able to make this project report. Firstly‚ I would like to express my gratitude towards my teacher‚ Mr. Harshpreet Singh Walia‚ Assistant Professor‚ Department of CSE‚ for his kind co-operation and encouragement which
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The differences between circuit switching and packet switching circuit switching is a telecommunication technology by which two network nodes establish a dedicated communications channel before communication takes place whereas packet switching does not need a dedicated network to communicate‚ all network users can share the same paths at the same time. In Circuit switching to provide communication among N computers‚ there must be a connection for each computer and at least N/2 independent
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Andrew Miller History 1302 - LaCoco Monday‚ May 9‚ 2011 “Integrated Circuits” Gordon E. Moore‚ co-founder of Intel‚ noted in 1965 that the power of integrated circuits doubles every two years.[1] This‚ known as Moore’s Law‚ is the basis for what I believe to have had the most profound impact on American History. Without integrated circuits‚ culture changing devices such as the iPhone would not be possible. These circuits were created in 1958 by Jack Kilby‚ inventor of the hand-held calculator
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