Variable Voltage And Variable Frequency drives

Presented By:
P.NATARAJU S.E.V.S.RAGHU VARMA
3rd year E.E.E. 3rd year E.E.E.

Abstract:-
Our varying industrial needs demand more precise control of the outputs of our basic electrical prime movers i.e, THE MOTORS. Basically dc motors are easy to control compared to their ac counter parts, but they have their own limitations with increase in capacity. Conversely ac motors in particular squirrel cag ....etc

[:=Read Full Message Here=:]

pls send variable frequency drive using microcontroller ppt ....etc

[:=Read Full Message Here=:]

plz i need variable dc power supply using ic lm317 project report and seminar report on lm317ic ....etc

[:=Read Full Message Here=:]

A Digital DC Power Supply (programmable bench power supply unit), hardware version 3.0
Abstract:
A good, reliable and easy to use bench power supply unit is probably the most important and most used device in every electronic lab.
A proper electronically stabilized bench power supply unit is an important but also expensive device. Using a microcontroller based design we can build a power supply which has a lot of extra features, is easy to build and very affordable.
The tuxgraphics digital DC power supply ....etc

[:=Read Full Message Here=:]

hi.
i want some ppt report for the of microcontroller based governor which is used in diesel locomotive.
if anybody have idea plz post.

thanks ....etc

[:=Read Full Message Here=:]

....etc

[:=Read Full Message Here=:]

i need this pdf file can you please make it available for me. thanx ....etc

[:=Read Full Message Here=:]

Variable Power Supp ly withDigital Control
The most frequently used device inelectronic workshops and laboratoriesis a universal power supply provides a variable, fluctuation-free output.Here we present a variable power supplywith digital control that is simple and easyto construct.The circuit is built around an adjustable3-terminal positive-voltage regulatorIC LM317, CMOS decade counter ICCD4017, timer IC NE555 and 3-terminalfixed negative-voltage regulator LM7912.The AC mains supply is stepped downby transformer X1 to deliver a secon ....etc

[:=Read Full Message Here=:]

i need this paper pls give me link................................................................................................................................ ....etc

[:=Read Full Message Here=:]

A New Low Power Test Pattern Generator Using a Variable-Length Ring Counter




1. Introduction
Built-in Self-Test (BIST) is a design-for-test (DFT)
technique in which testing is achieved through built-in
hardware features. The steps in a typical BIST approach are:
(1) on-chip test pattern generation; (2) application of
patterns to the circuit under test (CUT); (3) analysis of CUT
responses via on-chip output response analyzer (ORA) and
(4) making decisio ....etc

[:=Read Full Message Here=:]