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Title: report on Zigbee homeautomation
Page Link: report on Zigbee homeautomation -
Posted By: fagun
Created at: Thursday 07th of July 2011 02:17:36 PM
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Title: PHASE-ANGLE CONTROL OF SCR USING AT89C51
Page Link: PHASE-ANGLE CONTROL OF SCR USING AT89C51 -
Posted By: seminar class
Created at: Tuesday 22nd of March 2011 01:35:11 PM
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PHASE-ANGLE CONTROL OF SCR USING AT89C51
Silicon-controlled rectifiers (SCR) are solidstate semiconductor devices that are usually used in power switching circuits. SCR controls the output signal by switching it ‘on’ or ‘off’, thereby controlling the power to the load in context. The two primary modes of SCR control are phase-angle fired-where a partial waveform is passed to regulate the power.
In the phase-angle controller, the firing pulse is delayed to turn on the SCR in middle of every half cycle. This ....etc

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Title: 8 CANDIDATE QUIZ BUZZER USING 8051 MICRO CONTROLLER AT89C51
Page Link: 8 CANDIDATE QUIZ BUZZER USING 8051 MICRO CONTROLLER AT89C51 -
Posted By: seminar class
Created at: Friday 04th of March 2011 03:40:02 PM
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POWER SUPPLY
The input to the circuit is applied from the regulated power supply. The a.c. input i.e., 230V from the mains supply is step down by the transformer to 5V and is fed to a rectifier. The output obtained from the rectifier is a pulsating d.c voltage. So in order to get a pure d.c voltage, the output voltage from the rectifier is fed to a filter to remove any a.c components present even after rectification. Now, this voltage is given to a voltage regulator to obtain a pure constant dc voltage
Transformer ....etc

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Title: MICROCONTROLLER AT89C51 BASEDAUTO SPEED LIMITER WITH A UTO BREAKING
Page Link: MICROCONTROLLER AT89C51 BASEDAUTO SPEED LIMITER WITH A UTO BREAKING -
Posted By: [email protected]
Created at: Monday 01st of February 2010 08:35:34 PM
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I AM SEARCHING FOR CIRCUIT DIAGRAM OF MICROCONTROLLER AT89C51 BASED AUTO SPEED LIMITER WITH AUTO BREAKING ....etc

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Title: HomeAutomation
Page Link: HomeAutomation -
Posted By: project report helper
Created at: Thursday 30th of September 2010 12:57:37 PM
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HomeAutomation

Project report
Ubiquitous Computing
Joakim Börjesson, Victor Ström, Yiqi Mao,
Kadri-Ann Valgeväli, Amir Sabbagh Pour
CHALMERS UNIVERSITY OF TECHNOLOGY



Abstract

The HomeAutomation is a wireless home automation system that is supposed to be implemented in existing home environments, without any changes in the infrastructure. HomeAutomation let the user to control the home from his or her computer and assign actions that should happen depending on time or other sensor readings such as lig ....etc

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Title: DIGITAL AUDIO PROCESSOR USING AT89C51
Page Link: DIGITAL AUDIO PROCESSOR USING AT89C51 -
Posted By: seminar class
Created at: Thursday 03rd of March 2011 02:18:44 PM
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DIGITAL AUDIO PROCESSOR USING AT89C51
1. BACKGROUND

This report presents an infrared (IR) remote-controlled digital audio processor.
It is based on a microcontroller and can be used with any NEC-compatible full function
IR remote-control. This audio processor has enhanced features and can be easily customized to meet individual requirements as it is programmable.
Its main features are:
1. Full remote control using any NEC-compatible IR remote control handset.
2. Provision for four stereo input chann ....etc

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Title: Speed control of stepper motor using AT89c51
Page Link: Speed control of stepper motor using AT89c51 -
Posted By: Tony Akpaka
Created at: Tuesday 08th of June 2010 04:31:33 AM
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Title: Temperature monitoring system using AT89C51
Page Link: Temperature monitoring system using AT89C51 -
Posted By: seminar class
Created at: Tuesday 12th of April 2011 05:55:43 PM
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1. INTRODUCTION
1.1 Context

This project explains about a simple low cost circuit which can be mainly used in large scale industries to detect the high temperature and take immediate measures. This circuit is used to sense the temperature at a place. It indicates the temperature on the 7 Segment Display with the help of microcontroller. This circuit makes use of SL100 which is a 3 pin centigrade temperature sensor IC. It directly senses the temperature and sends the data to the controller.
The complete project is ....etc

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Title: homeautomation through pc
Page Link: homeautomation through pc -
Posted By: sambitkumarsha
Created at: Friday 08th of April 2011 07:10:16 PM
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can any one send me the full project report on home automation through pc
its urgent plz plz plz help me ....etc

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Title: MICROCONTROLLER AT89C51 BASED AUTO SPEED LIMITER WITH AUTO BREAKING
Page Link: MICROCONTROLLER AT89C51 BASED AUTO SPEED LIMITER WITH AUTO BREAKING -
Posted By: [email protected]
Created at: Monday 01st of February 2010 08:30:25 PM
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MICROCONTROLLER AT89C51 BASED AUTO SPEED LIMITER WITH AUTO BREAKING ....etc

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