In power electronics, solid-state electronics is used for the control and conversion of electric power .The goal of power electronics is to realize power conversion from electrical source to an electrical load in a highly efficient, highly reliable and cost effective way. Power electronics modules are key units in a power electronics system. These modules contain integration of power switches and associated electronic circuitry for drive control and protection and other passive components.

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IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 25, NO. 7, JULY 2010 1877
An Integrated Four-Port DC/DC Converterfor Renewable Energy Applications
Zhijun Qian
, Student Member, IEEE
, Osama Abdel-Rahman
, Member, IEEE
, and Issa Batarseh
, Fellow, IEEE
Abstract
—This paper proposes a novel converter topology that interfaces four power ports: two sources, one bidirectional stor-age port, and one isolated load port. The proposed four-port dc/dc converter is derived by simply adding two switches and two diodes to the traditional ha ....etc

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ABSTRACT


This paper presents a new technique for the protection of power transmission systems by using the Global Positioning System (GPS) and fault generated transients, the Integrated Positional Protection technique.A specially designed integrated positional protection relay, which contains a fault transient detection system together with a substation communication network, is connected to the power line.The relay detects the fault generated high frequency voltage transient ....etc

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ABSTRACT
The Integrated Gate Commutated Thyristor (IGCT) combines the advantages of the hard driven GTO thyristor, including its dramatically improved turn- off performance, with technological breakthroughs at the device, gate-drive and application levels. Homogenous switching area of the IGCT up to the dynamic avalanche limits. Snubber circuits are no longer needed. Improved loss characteristics allow high frequency applications extending into the kHz range. A new ....etc

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ABSTRACT
A single-chip CMOS Global Positioning System (GPS) radio has been integrated using only a couple of external passive components for the input matching network and one external reference for the synthesizer. The receiver downconverts the GPS L1 signal at 1575.42 MHz to an IF of 9.45 MHz. The complete front-end and frequency synthesizer section have been integrated: low noise amplifier, image rejection mixer, IF active filter, and the full phase-locked loop synthesizer, including voltage-controlled osci ....etc

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