Why Tolerance in Cultural Diversity is very important for Modern Era Business Environment?(Explain with Examples) ....etc

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Introduction
The PC parallel port is a powerful platform, though inexpensive, for implementing projects dealing with the control of real-world peripherals. It can be used to control the printer as well as household and other electrical appliances.
The computer program included as part of the project controls relays through the interface circuit, which, in turn, switch the appliances ‘on’ or ‘off’. The parallel port has 12 outputs including 8 data lines and 4 control lines.
The hardware circuit developed ca ....etc

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IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 25, NO. 7, JULY 2010 1877
An Integrated Four-Port DC/DC Converterfor Renewable Energy Applications
Zhijun Qian
, Student Member, IEEE
, Osama Abdel-Rahman
, Member, IEEE
, and Issa Batarseh
, Fellow, IEEE
Abstract
—This paper proposes a novel converter topology that interfaces four power ports: two sources, one bidirectional stor-age port, and one isolated load port. The proposed four-port dc/dc converter is derived by simply adding two switches and two diodes to the traditional ha ....etc

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Introduction

The Parallel Port is the most commonly used port for interfacing home made projects. This port will allow the input of up to 9 bits or the output of 12 bits at any one given time, thus requiring minimal external circuitry to implement many simpler tasks. The port is composed of 4 control lines, 5 status lines and 8 data lines. It's found commonly on the back of your PC as a D-Type 25 Pin female connector. There may also be a D-Type 25 pin male connector. This will be a serial RS-232 port and th ....etc

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i need a detailed report on integrated four port dcdc converter for renewable energy applications ....etc

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Parallel Port Interface

The main components are 74LS367 Buffer IC and Case, Wire, Sockests, 18 Pin Socket (For Output), 25 Pin Connector (For Parallel Port), Ribben Cable

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LED BRIGHTNESS CONTROLLING USING SERIAL PORT




Interfacing with pc

Interfacing is done using RS232 DS-9 port which is connected to pc & microcontroller.
On port 3,at p3.0 & p3.1 the input signal is received.
TXD,RXD pins are also used in interfacing.


Sending signals from pc

To send signals from pc we need to make a software using vb .net .This signals will vary from 0 to 255.As per this signals the PWM will vary by duty cycle in microco ....etc

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