LAPTOP CHARGER DESIGN PROJECT BY ECE 411 I- Introduction The goal of this project is to design an AC-DC converter to power a personal Laptop computer. Chargers are a costly component of laptop computer. This project will implement a design that will lower the cost of the charger. II- Application and Economic Issues The designed AC-DC converter would many functions and benefits. 1. Functions
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DGabe Kenworthy Mrs. Echols AP U.S History-3rd 6 December 2012 Annotated Bibliography Primary Sources: Tesla‚ Nikola‚ and David Hatcher Childress. The Fantastic Inventions of Nikola Tesla. New York: Adventures Unlimited P‚ 1993. This helpful book had descriptions and drawings of many of Tesla’s inventions and patents as well as providing modern descriptions and applications. It showed me how Tesla designed new devices to meet the challenges
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Mechanism Description of an electric guitar Introduction An electric guitar is a stringed musical instrument played with fingers or a plectrum (pick). It consists of a body‚ a neck and a headstock to which usually six steel strings are attached. The magnetic pickups transform the vibrations of the steel strings into audio signals that are driven through an amplifier. Thus‚ the amplifier is also an essential part of the electric guitar. It was the need of amplified sound
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Chapter I I. Introduction Power electronics converters can be found wherever there is a need to change voltage‚ current of frequency of electric power. The power range of these converters is forming some mill watts (as in mobile phone) to thousands of megawatts in an HVDC transmission system. With classical electronics‚ electrical currents‚ and voltage are used to carry information‚ where as with power electronics‚ they carry power electronics becomes the efficiency An inverter converts DC
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control very large load of AC with very small input DC. The saturable reactor consists of three essential elements : Direct current source‚ magnetic core with windings‚ and alternating current source. How it work? The AC load circuit run on to magnetic core and the DC control circuit is also went on to the same core. Ac current flows through winding and Since this current is alternating‚ the flux set up in the magnetic circuit loop is constantly changing in magnitude and direction. This means the field
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which is used to measure tiny currents‚ usually 1mA or less. Ammeter An ammeter is used to measure current. Voltmeter A voltmeter is used to measure voltage. Resistor (Fixed and Variable) Fixed Variable A resistor restricts the flow of current‚ for example to limit the current passing through an LED. A resistor is used with a capacitor in a timing circuit. This type of variable resistor with 2 contacts (a rheostat) is usually used to control current.. Capacitor: (fixed & variable)
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meters needed for such experiment. Some of the most common devices and meters to be used is described below. 1) RESISTORS Resistors are devices used to give a desired value of resistance. They are inserted into a circuit in order to lower the current of to produce a desired voltage drop. There are two kinds of resistors: a) the Fix Resistor and‚ b) the Variable Resistor. The fix resistor has a specific value of resistance which cannot be changed‚ while the variable resistor may have a any value
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ELECTRICAL SAFETY IN 1 CONSTRUCTION NATIONAL SAFETY DAY 2007 Environment‚ Health And Safety Karnataka State Safety Institute JNB/March 2007 The Times Of India March 9‚ 2007‚ Page 3 2 Page 3 has become popular for the society & fashion info Karnataka State Safety Institute JNB/March 2007 ELECTRICAL SAFETY IN 3 CONSTRUCTION NATIONAL SAFETY DAY 2007 Environment‚ Health And Safety Karnataka State Safety Institute JNB/March 2007 Electrical Safety Shock 4
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Masters of Science (Banking) UUM-IBBM WBB 6013: SEMINAR IN BANKING FDI Inflow‚ Current Account Balance‚ Inflation And Interest Rate: How Do They Impact The Malaysian Economy? By Siva Kumar Kandiah (Matric No: 89306) ___________________________________________________________ Abstract This article seeks to find which of the macroeconomic variables among FDI inflow‚ current account balance‚ inflation and interest rate play a significant role in economic growth in Malaysia using
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INFORMATION: Resistance is the force that opposes the flow of electrons in a circuit. The equation for resistance is Ω=V/A. (Ohms equals Voltage divided by amps). Resistivity is a measure of how strongly a material opposes the flow of electrical current‚ There are four main factors that affect resistance: Length – this is because the electrons would bump into more atoms‚ the longer the wire which is like using up its fuel. Material – different materials inherent resistances as they have more or
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