51‚ NO. 3‚ JUNE 2004 641 A Review of Three-Phase Improved Power Quality AC–DC Converters Bhim Singh‚ Senior Member‚ IEEE‚ Brij N. Singh‚ Member‚ IEEE‚ Ambrish Chandra‚ Senior Member‚ IEEE‚ Kamal Al-Haddad‚ Senior Member‚ IEEE‚ Ashish Pandey‚ Member‚ IEEE‚ and Dwarka P. Kothari‚ Senior Member‚ IEEE Abstract—Three-phase ac–dc converters have been developed to a matured level with improved power quality in terms of power-factor correction‚ reduced total harmonic distortion at input ac
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5 Volt DC Power Supply Rakibul Hassan Department of EEE‚ Ahsanullah University of Science and Technology (AUST)‚ Dhaka‚ Bangladesh. E-mail: rakib_h@y7mail.com Key Words Transformer‚ Rectifier‚ Pulsating DC‚ Ripple voltage‚ Filter‚ Zener diode. Abstract: |Serial No.|Component Details |Specification |Quantity | |1. |Transformer |220V/12V |1 piece | |2. |p-n junction diode |1N4007 |4 piece
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Unlimited Power Supply Before I came up wit the U.P.S. (Unlimited Power Supply)‚ I was struggling with an idea for this science fair. However I thought of a magnetic car. Then after school I heard my parents saying that our electricity bill was getting too high‚ so I tried to think of a solution. Then I read an article about how a Prius battery could power a house‚ and then I thought about how I could power a house using a rechargeable battery like is found in the Prius. Then I came across the Bedini
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Abstract : A DC power supply is very important in our day to day life. We use it to charge or operate our DC components like charger light‚ cell phone battery charger etc. It’s nothing but a AC to DC converter. Keywords: 5V DC power supply‚ rectifier‚ diode‚ filter‚ capacitor‚ zener diode‚ voltage regulator‚ signal‚ waveshape. 1. Introduction I’m designing a 5V DC power supply. Here I’m basically designing a AC to DC converter. To convert the AC to DC‚ I’m using components like full wave bridge
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ncontAUTOMATIC POWER FACTOR CORRECTION BY MICROCONTROLLER 8051 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF Bachelor of Technology in Electrical Engineering By SATYASURANJEET BEHERA SIBASIS MOHAPATRA MONALISA BISOI Department of Electrical Engineering National Institute of Technology Rourkela 2007 AUTOMATIC POWER FACTOR CORRECTION BY MICROCONTROLLER 8051 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF Bachelor of
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scheme DC-DC converter. The converter is a phase-shifted full-bridge PWM converter that is designed to operate as a front stage of a power conversion system where the input is a variable low voltage high current source. The converter is designed to step-up the low voltage input to an acceptable level that can be inverted to a 120/240 VAC 60Hz voltage for residential power. A DSP based adaptive control model is developed‚ taking into account line variations introduced by the input source while providing
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ID:-13103030 Section:-B RAID is a data storage technology that combines multiple disk drive components into a logical unit for the purposes of data redundancy and performance improvement. Data is distributed across the drives in one of several ways‚ referred to as RAID levels‚ depending on the specific level of redundancy and performance required. RAID is now used as an umbrella term for computer data storage schemes that can divide and replicate data among multiple physical drives: RAID is
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motherboard have? 4 8. If the power connector from the CPU fan has only three pins‚ it can still connect to the 4 pin header‚ but what functionality is lost? Pulse width modulation effectively making the fan run at the same speed constantly 9. How do you determine the wattage capacity needed by a power supply? Add up all of the wattage needed by each component and then add 30% 10. Which one component in a high-end gaming computer is likely to draw the most power? The video card Thinking
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UNINTERRUPTIBLE POWER SUPPLY SYSTEM (UPS) i ABSTRACT This project‚ the design and construction of Uninterruptible Power Supply System (UPS) illustrates
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electronic labs at home. It is meant as a learning tool to generate a comprehensive‚ hands-on guide for students to use on their own time‚ while still being cost effective. Our project will utilize the 68HC12 Axiom board‚ custom built variable power supply and function generator‚ LCD‚ and keypad‚ interfaced with a PC using custom built oscilloscope software and a Graphical User Interface (GUI). Our project will employ a high level programming language using C++ for the development of the oscilloscope
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