Pulse Based Dead Time Compensator for PWM Voltage Inverters



I. Introduction
The state of the art in motor control provides an adjustable
voltage and frequency to the terminals of the motor
through a pulse width modulated (PWM) voltage source inverter
drive. As the power devices change switching states,
a dead time exists. Although the dead time is short, it
causes deviations from the desired fundamental output voltage.
While each deviation does not appreciably affect the
fundamental voltage, the ac ....etc

[:=Read Full Message Here=:]

History of Polymer and Plastics

History of Plastics and Polymers

Plastics are polymers. What is a polymer? The most simple definition of a polymer is something made of many units. Think of a polymer as a chain. Each page link of the chain is the mer or basic unit that is made of carbon, hydrogen, oxygen, and/or silicon. To make the chain, many links or mers are hooked or polymerized together. Polymerization can be demonstrated by linking strips of construction paper together to make paper garlands or ....etc

[:=Read Full Message Here=:]

History of 64-bit Computing: AMD64 and Intel Itanium Processors
64-bit History
• “640K ought to be enough for anybody” – Bill Gates
• 64-bit twice as fast as 32-bits?
• Benefits of 64-bit technology
• Applications of 64-bit technology
AMD64 Outline
• AMD Athlon 64 Specifications
• Operating Modes
• Register overview
• DDR controller and Hypertransport
AMD Athlon 64 Specifications
Infrastructure Socket 754
Number of Transistors 105.9 million
64-bit Instruction Set ....etc

[:=Read Full Message Here=:]

Abstract:
This paper presents an introduction to the world of swarm robots and adumbrates its applications. Swarm robotics is currently one of the most important application areas for swarm intelligence. The researcher has a great idea of developing swarm robots for the security purpose. These robots can spy in any region without any hindrance of locating it form. Swarms provide the possibility of enhanced task performance, high reliability (fault tolerance), low unit complexity and decreased cost over traditional ro ....etc

[:=Read Full Message Here=:]

Final Demonstration: Dead Reckoning System for Mobile Robots
Problem Statement
Dead reckoning is navigation based on measurements of distance traveled from a known point.
Use a mobile robot and develop a synthesized dead reckoning navigation algorithm.
We will integrate various sensors.
Robot and Sensors
MARK III Robot with OOPic Chip
MEMS Accelerometer
MEMS Gyroscope
Shaft Encoders
Digital Compass
Algorithms We Tested
North Bound using Compass
Turning using Gyroscope
Turning using Encoders
Turning us ....etc

[:=Read Full Message Here=:]

....etc

[:=Read Full Message Here=:]

pls send ppt on dead time elimination of voltege sourse inverter ....etc

[:=Read Full Message Here=:]

Carl Fischer
Computing Department
Lancaster University
Lancaster, UK.
-----------------
Kavitha Muthukrishnan
Faculty of Computer Science
University of Twente
Enschede, The Netherlands.
-------------------
Mike Hazas
Computing Department
Lancaster University
Lancaster, UK.
------------------
Hans Gellersen
Computing Department
Lancaster University
Lancaster, UK.


ABSTRACT

Ad hoc solutions for tracking and providing navigation sup- port to emergency response teams ....etc

[:=Read Full Message Here=:]

SAFETY PRECAUTIONS IN DAY TO DAY LIFE


GROUP MEMBERS
DEVENDRA PARAB
ABHIJEET SAWANT
GANDHAR KARANE
ASIM HAJWANI
AJINKYA CHANDANE
AVINASH MOHITE
NIVRUTTI MOKAL
IRFAN SHAIKH

GROUP TEACHER- PRIYESH SIR


FIRE SAFETY

FIRE SAFETY REFERS TO PRECAUTIONS THAT ARE TAKEN TO PREVENT OR REDUCED LIKELIHOOD OF A FIRE THAT MAY RESULT IN DEATH, INJURY OR PROPERTY DAMAGE, ALERT THOSE IN A STRUCTURE TO THE PRESENCE OF FIRE IN THE EVENT ONE OCCURS, BETTER ENABLE THOSE THREATEN BY A FIRE TO SURVIVE, O ....etc

[:=Read Full Message Here=:]

please send the ppt of dead time elimination for voltage sourse inverter ....etc

[:=Read Full Message Here=:]