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Lecture 6 Leakage and Low-Power Design - Courses
Lecture 6 Leakage and Low-Power Design - Courses

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CA235001EN

... Eaton isolates electrical equipment during normal service conditions and provides a path to ground for surge current during arrester operations with its Cooper Power series protective gaps. Protective gaps used for interconnection of arrester ground, secondary neutral, and transformer tank provide a ...
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Design Project - Purdue College of Engineering
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... the probability of “never” failing (defined as 10-9 failures per hour of operation) [3]. With the λp of the entire circuit being 2.21 failures per 106 hours, if there were one million units in use, a product failure would occur approximately every 27 minutes. Since the DHS is intended to warn users ...
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... that the tested machine is mechanically decoupled from the load, thereby removing the need for special test facilities. During synthetic loading the equipment required to perform the efficiency test is an inverter, appropriate voltage and current sensors and a vector controller. The cost and time as ...
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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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