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ee462g_7pre - University of Kentucky
ee462g_7pre - University of Kentucky

... What effects would VDD have on the fall time (note this ends in the triode region)? ...
Pdf - Text of NPTEL IIT Video Lectures
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... Non-Foster circuits such as negative inductors and negative capacitors offer the potential for increased bandwidth in a variety of applications such as wideband antennas, artificial magnetic conductors, and metamaterials with negative permeability [1]. For antennas, negative inductors can be used to ...
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... be produced with wide-ranging stiffness, density, strength, heat resistance, and even price. With continued research in polymer science and applications, they are playing an ever growing role in modern society. Conductive polymers represent a new class of polymers offering a unique combination of pr ...
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Switched-mode power supply



A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.
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