A transistor is a semiconductor device used to amplify



A transistor is a semiconductor device used to amplify and switch electronic signals. It is made of a solid piece of semiconductor material, with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor's terminals changes the current flowing through another pair of terminals. Because the controlled (output) power can be much more than the controlling (input) ....etc

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OUTLINE
What are Transistors
What is a SET
How do SETs differ from the Conventional Transistors
Operation of SETs
Application of SETs
What is a Transistor
A transistor is a solid state semiconductor device which can be used for numerous purposes including signal modulation, signal amplification, voltage stabilization, and many other applications.

Transistors act like a variable valve which, based on its input current (BJT) or input voltage (FET), allow a precise amount of current to flow through it ....etc

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i want a seminar report on artificial retina using thin film transistor tecnology.it's an urgent ....etc

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Design Of Power System Stabilizer To Improve Small Signal Stability By Using Modified Heffron-Phillip s Model
Abstract:
One of the major problems in power system operation is related to small signal instability caused by insufficient damping in the system. The most effective way of countering this instability is to use auxiliary controllers called Power System Stabilizers, to produce additional damping in the system. Generally Heffron-phillip s Model of a synchronous machine is commonly used for the small s ....etc

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Abstract Test card for color TV is a widely used method to evaluate the quality of a TV set directly. We have made a test signal generator (which can also generate synchronizing (abbreviated to sync hereafter) signals) mainly based on microprocessor Z-80. Taking the advantage of microprocessor programming, combining with the technique of microprocessor, digital circuits and analogue devices, we use software as far as possible to generate signals directly or to simplify the controlling circuits. Those signals, such as composite sync signal, bla ....etc

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Spin Valve Transistor



Introduction
In a world of ubiquitous presence of electrons can you imagine any other field displacing it? It may seem peculiar, even absurd, but with the advent of spintronics it is turning into reality.

In our conventional electronic devices we use semi conducting materials for logical operation and magnetic materials for storage, but spintronics uses magnetic materials for both purposes. These spintronic devices are more versatile and faster than the ....etc

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Small-signal modelling of the transistor laser including the quantum capture
and escape lifetimes



The transistor laser was rst introduced in , and it was
predicted that this device could have a high-speed modula-
tion bandwidth of up to 100 GHz . In the transistor laser
(TL), a quantum well (QW) is embedded in the base of the
bipolar junction transistor (BJT) and acts as an optical col-
lector. The stimulated recombination causes compression in
the I-V characteristics of t ....etc

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I am looking for olet ppt.Organic materials are of great interest for electronics applications, as they have many advantages over their inorganic counterparts.They may often be solution-processed, allowing the fabrication of devices such as circuits,displays,and radio-frequency identification deviceson plastic substrates, and deposition by unconventional means, such as screen and inkjet printing.The most attractive prospect, however, is the incorporation of functionality by design. The versatility of organic synthetic techniques and the wide sp ....etc

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Power System Small-Signal Oscillation Stability
as Affected by Large-scale PV Penetration

W. Du, H. F. Wang, and R. Dunn


Abstract

This paper investigates the impact of a large photovoltaic (PV) penetration on power system small signal oscillation stability. A comprehensive model of a single-machine infinite-bus power system integrated with a PV power generation power plant is established. Numerical computation of damping torque contribution from the PV power plant is carried out, which is confirmed by the results of ....etc

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