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listening bug synopsis pdf


Posted by:
Created at: Saturday 20th of October 2012 11:36:20 PM
Last Edited Or Replied at :Saturday 20th of October 2012 11:36:20 PM
listening bug , listening bug project pdf, listening bug pdf ic 741 , pdf on project on listeningbug, listening bug of ic741 , pdf on listening bug, listening bug pdf , pdf of listening bug,
I Want Synopsis Of listening bug usi..................[:=> Show Contents <=:]



mini project in electronics using ic 741


Posted by:
Created at: Friday 12th of October 2012 12:54:48 PM
Last Edited Or Replied at :Friday 12th of October 2012 12:54:48 PM
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looking for mini project..................[:=> Show Contents <=:]



simple circuits for intercom using 741 ic


Posted by:
Created at: Thursday 04th of October 2012 03:06:30 AM
Last Edited Or Replied at :Thursday 04th of October 2012 03:06:30 AM
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analog to digital converter circuit using ic 741


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Created at: Wednesday 03rd of October 2012 10:41:31 AM
Last Edited Or Replied at :Wednesday 03rd of October 2012 10:41:31 AM
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how to design an analog to digital converter ci..................[:=> Show Contents <=:]



Study the working of 4bit R2R ladder DA converter circuit


Posted by: seminar class
Created at: Friday 13th of May 2011 11:10:18 PM
Last Edited Or Replied at :Friday 13th of May 2011 11:10:18 PM
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13864]

Brief theory – the process of translation of digital information into equivalent analog information is called as digital to analog conversion. Such converter is also called as decoding device. There are two types of such converters – the weighted resistor DAC and the R–2R ladder DAC.
The R–2R ladder (binary ladder) is a resistive network whose output voltage is a properly weighted sum of the digital inputs. It uses resistors of only two values, the R and the 2R, as shown in the above figure.
It has four digital inputs D, C, B and A with positional..................[:=> Show Contents <=:]



Study the working of Schmitt trigger inverter as square wave generator


Posted by: seminar class
Created at: Friday 13th of May 2011 10:58:03 PM
Last Edited Or Replied at :Tuesday 02nd of October 2012 02:41:37 AM
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]– study of Schmitt trigger inverter circuit.
Aim – to study the working of Schmitt trigger inverter as square wave generator.
Apparatus – IC 7414, circuit board, power supply +5V DC, CRO, resistors, capacitors, connecting wires, soldering iron, cutter etc.
Circuit diagram –


Procedure –
1) You are given IC 7414. Identify the pin numbers of the IC.
2) Write the expression for the period of output waveforms. Calculate the values of R1 & C1 for three different frequencies.
3) Draw the ideal output voltage wavefor..................[:=> Show Contents <=:]



AUDIO AMPLIFIER full report


Posted by: seminar class
Created at: Friday 22nd of April 2011 06:20:00 AM
Last Edited Or Replied at :Friday 22nd of April 2011 06:20:00 AM
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plify the final signal. Two transistors one NPN & other PNP type transistor is used in this configuration. This amplify signal converted back into audio signal with the help of speaker. Push pull amplifier is used because the speaker has low impedance & push pull amplifier has low output impedance. Which easily matched with speaker & more power can be transmitted.
CHAPTER 2
INTRODUCTION
2.1 Introduction

Audio amplifier is based on amplification property of transistor. When any signal gives to transistor at input terminal then transistor amplify that signal at the outpu..................[:=> Show Contents <=:]



main project topics for electronics and communication


Posted by: project topics
Created at: Wednesday 29th of December 2010 05:46:28 AM
Last Edited Or Replied at :Sunday 27th of March 2011 03:37:24 AM
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led Electric Appliances
325. Water-LeveL Controller
326. Solar Bug
327. CD-Rom Drive as Digital-Audio CD Player
328. Reversible DC Motor Control Using PWM
329. Automated Remote Data Logger
330. Fire Alarm
331. Laser-guided Door Opener
332. Flasher For Deepawali
333. DC motor control using PC (pulse width modulation technique).
334. 3-D Axis
335. USB (Serial) Microcontroller Based Equipment Control
336. Safety Guard
337. Street Light Control Using Light Dependent Resister
338. Static relay Operation Using Microcontroller
339. Parrot-Sounding AC Doorbell
340. IR Based Appli..................[:=> Show Contents <=:]



Remote control using telephone


Posted by: computer science crazy
Created at: Wednesday 09th of September 2009 02:02:38 AM
Last Edited Or Replied at :Wednesday 09th of September 2009 02:24:07 AM
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the appliances also while being used for normal conversation.
http://www.electronic-circuits-diagrams.com/remotecontrolsimages/2.gif
The circuit uses IC KT3170 (DTMF-to-BCD converter), 74154 (4-to-16-line demult-iplexer), and five CD4013 (D flip-flop) ICs. The working of the circuit is as follows.
Once a call is established (after hearing ring-back tone), dial ˜0™ in DTMF mode. IC1 decodes this as ˜1010,™ which is further demultiplexed by IC2 as output O10 (at pin 11) of IC2 (74154). The active low output of IC2, after inversion by an inverter gate of IC3 (CD40..................[:=> Show Contents <=:]



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