A/D and D/A Conversion,analog to digital and digital to analog


Data Converter impacts the factor for the performance of the overall radio design
Requirements: very high sampling rates, high number of effective quantization bits, an operating bandwidth of several Ghz, a large spurious-free dynamic range, a reasonable price
DAC and ADC converters
Sampling and Quantization
Nyquist Zones
Aliasing
Bandpass filtering – uses image to translate bandpass signals to baseband
Errors occurs in Quantization
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hi....we want the project abstract of lcd based digital alarm clock with digital thermometer using 8051/89c51........ ....etc

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APPLICATIONS OF DIGITAL OBJECT COUNTER USING LDR & IC 555 MONOSTABLE MULTIVIBRATOR ....etc

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Digital-to-Analog Analog-to-Digital
Data Handling Systems
Both data about the physical world and control signals sent to interact with the physical world are typically analog or continuously varying quantities.
In order to use the power of digital electronics, one must convert from analog to digital form on the experimental measurement end and convert from digital to analog form on the control or output end of a laboratory system.
Digital-to-Analog Conversion
When data is in binary form, the 0's and 1's may be of s ....etc

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Abstract:

Digital audio broadcasting, DAB, is the most fundamental advancement in radio technology since that introduction of FM stereo radio. It gives listeners interference - free reception of CD quality sound, easy to use radios, and the potential for wider listening choice through many additional stations and services.

DAB is a reliable multi service digital broadcasting system for reception by mobile, portable and fixed receivers with a simple, non-directional antenna. It can be operated at any frequency from 30 MHz ....etc

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INTROUCTION



ESSENTIAL QUALITIES OF HV CIRCUIT BREAKER

High-voltage circuit breaker play an important role in transmission and distribution systems. They must clear faults and isolate faulted sections rapidly and reliably. In-short they must possess the following qualities.

In closed position they are good conductors.
In open position they are excellent insulators.
They can close a shorted circuit quickly and safely without unacceptable contact erosion.
They can interrupt a rated short-circuit current or lower current qui ....etc

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detailed working of a DIGITAL NOCTURNAL NUISANCE using logic gates ....etc

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SMS CONTROLLED BRANCH CIRCUIT WITH TIMER AND DIGITAL THERMOMETER

Introduction:

The Short Message Service (SMS) Controlled Branch Circuit with Timer and Digital thermometer is an improvised version of the SMS Controlled Branch Circuit device by the former engineering students of IETI. It is basically a group of smart circuit breakers controlled remotely by a cellular phone. It can automatically switch on or off through text messaging. It also has a built-in timer so you can set the time on the circuit breaker on ....etc

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i am a student of eee.
i want a powerpoint presentation for the topic DIGITAL TESTING OF HIGH VOLTAGE CIRCUIT BREAKERS ....etc

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