The circuit is made up of Operational amplifier LM741 which is employed like a comparator for sensitive voltage, LDR , Preset VR1 is used to give a reference voltage to the pin 3 which is a non-inverting terminal as well as to LDR and R2 is linked with IC1 at inverting pin 2 along with a few additional components.

It is very simple to understand the working of the circuit. LDR device will not start till we do not pass our hand over it and as a result of it IC1 pin 2 move to high state. And as a result of its low state is achieved by the IC ....etc

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Dear sir, I am doing a project on the infrared remote control circuit design using the IC CD4027 and IC 555 and also a photo modular TSOP 1738 for switching on and also off the household appliances like lights,fans, etc. I need a completed project report for the same with the circuit diagram, whixh i have to submit in my college lab. Please help me as soon as possible as i need it immidiately. Thanking you. ....etc

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what are testing steps for one rupee coin circuit diagram? then what type of problems chance to face in one rupee coin phone? ....etc

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wireless switch by using opamp cd4027

Wireless switch circuit using CD4027
SUMMARY OF THE PROJECT
Work in wireless switch circuit using CD4027. Using this scheme, you can control any electrical device, just passing a hand over the LST.
DESCRIPTION OF THE PROJECT
Work in wireless switch circuit using CD4027. Using this scheme, you can control any electrical device, just passing a hand over the LST.
These schemes largely depending on the two chips. The first of these is LM714, which is the operational amplifier. This IC is used to increase the v ....etc

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EQUIVALENT ELECTRICAL CIRCUIT FOR DESIGNING MEMS-CONTROLLED REFLECTARRAY PHASE SHIFTERS



INTRODUCTION
Electronically tunable microstrip re ectarrays are getting more and
more attraction and signi cance these days and are successfully being
applied in electronically scanning and beam-steering antennas . These recon gurable re ectarrays possess the advantages of
both xed beam re ectarrays (such as small size, less weight and
low cost) and active phased arrays (e.g. ....etc

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To get full information or details of steps to male rain water harvesting using thermocoal please have a look on the pages

http://queensvalleyholiday_hw/hhw_2011/Class%20VII%20-%20Instructions%20for%20Science%20HHW.pdf

if you again feel trouble on steps to male rain water harvesting using thermocoal please reply in that page and ask specific fields in steps to male rain water harvesting using thermocoal ....etc

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wireless switch circuit using cd4027 pdf

Generally appliances that we used in our home are being controlled with the help of devices like switches, senors. However sometimes it is dangerous to have physical contact with these switches. So to overcome these dangers, here we have explained a circuit that needs no physical contact with the appliance. In these circuits all you need is to pass your hand above LDR. As you first pass your hand over LDR the device connected with it started and remain in that state till you again pass your hand abo ....etc

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Clap Switch
Sound operated switch using a simple transistor circuit
The operation is simple. Clap and the lamp turns on. Clap again and it turns off.
The electret microphone picks up the sound of your claps, coughs, and the sound of that book knocked off the table. It produces a small electrical signal which is amplified by the succeeding transistor stage. Two transistors cross connected as a bistable multivibrator change state at each signal. One of these transistors drives a heavier transistor which controls a lamp.
I ....etc

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to get information about the topic electrical power generation using foot steps full report refer the page link bellow

http://seminarsprojects.net/Thread-foot-step-power-generation ....etc

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There used to be a time when students relied on their textbooks and exercise books in the classroom, to understand the concepts and good to score on the exams. This may have helped the school examinations Council succeed, but it did not help students perform in competitive examinations. Then a revolution in education, which has taken over the process of teaching and learning to greater heights.

This revolution involved the inclusion of graphics work, models, projects, data gathering, interviews, discussions, etc., in the curriculum. It was soo ....etc

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