DIELECTRICS AND MAGNETIC MATERIALS



Insulators

Some materials like glass, ceramic, polymers and papers are non-conducting materials.

They prevent flow of current through them.

They provide electrical insulation.


DIELECTRICS

the non-conducting materials when placed in electric field modifies the electric field and themselves undergo appreciable change are called dielectrics.


Energy Band Diagram

The for ....etc

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A Low-Voltage Low-Power Comparator With
Current-Controlled Dynamically-Biased
Preamplifiers For DCM Buck Regulators

Hoi Lee
Department of Electrical Engineering,
The University of Texas at Dallas,
Richardson, TX 75080-3021, USA.



Abstract-


Comparator-controlled power switch has been widely used to improve power efficiencies of discontinuous-conductionmode (DCM) buck regulators. Some major design challenges are capabilities of the comparator to operate at low voltage and dissipat ....etc

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ANTENNAS FOR LOW POWER APPLICATIONS



Introduction:
There seems to be little information on compact antenna design for the low power wireless field. Good
antenna design is required to realize good range performance. A good antenna requires it to be the right
type for the application. It also must be matched and tuned to the transmitter and receiver. To get the best
results, a designer should have an idea about how the antenna works, and what the important ....etc

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Presented by:
D.MURUGAN


BZ-FAD
LOW-POWER LOW -AREA MULTIPLIER BASED ON SHIFT AND ADD ARCHITECHTURE
Multipliers
Multipliers are among the fundamental components of many digital systems
The largest contribution to the total power consumption in the multiplier is due to the generation of partial product
Among all the multipliers shift and add multipliers are the most commonly used ,due to its simplicity & relatively small area requirement
Mul ....etc

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ABSTRACT
The aim of this paper is to describe the implementation of a lowpower,low-cost 16-bit RISC microcontroller that will act as thecore of a stand-alone security system. The controller is designedto provide moderate-high security at very low cost and to be ableto operate independent of a database. It is designed using 1.5-mSCMOS process from MOSIS and operates at a frequency of 12.5MHz.
KeywordsCard readers, ASICs, security systems, low-power
1. INTRODUCTION
Current access control systems that authorize access to a bu ....etc

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A Low-Light CMOS Contact Imager With an Emission Filter for Biosensing Applications
In the article is described a fully functional low light 128 128
contact image sensor for cell detection in biosensing applications. 0.18micrometer CMOS technology is used to fabricate it. It has a low-noise operation by employing both a modified version
of the active reset (AR) technique. for
fluorescence imaging, we need High-sensitivity and low noise performance. These attributes are inegrated into this sensor. an emission filter is specially fab ....etc

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INTROUCTION

In this fast moving world time delay is one of the most dreaded situations in the field of data communication. A delay in the communication is as bad as loosing the information, whether it is on the internet or on television or talking over a telephone. We need to find out different ways to improve the communication speed. The various methods adopted by the communication industry are the wireless technology, optical communications, ultra wide band communication networks etc. But all these methods need an initial capital amount wh ....etc

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A 1-V 36 uW low noise adaptive interface IC for portable biomedical applications
Presented by,

AKHIL MATHEW
S7,Applied Electronics
College Of Engineering, Trivandrum
2007-11 batch


Hi guys, if you like this presentation, say hi to its author at [email protected]

Contents
Introduction to biopotential amplifiers.
Requirements of a better biopotential amplifiers.
Block diagrams and functional blocks.
Measurement results.
Conclusion.
References.

Introduction
....etc

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please sent that topic as much early as possible ....etc

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