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ppt - UCF EECS
ppt - UCF EECS

reactive power - KFUPM Faculty List
reactive power - KFUPM Faculty List

... electrical power equipment to prevent damage such as overheating of generators and motors, to reduce transmission losses and to maintain the ability of the system to withstand and prevent voltage collapse. In general terms, decreasing reactive power causing voltage to fall while increasing it causin ...
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J.M. Rivas,  O. Leitermann, Y. Han, and D.J. Perreault, “A Very High Frequency dc-dc Converter Based on a Phi-2 Resonant Inverter,” 2008 IEEE Power Electronics Specialists Conference , June 2008, pp. 1657 1666
J.M. Rivas,  O. Leitermann, Y. Han, and D.J. Perreault, “A Very High Frequency dc-dc Converter Based on a Phi-2 Resonant Inverter,” 2008 IEEE Power Electronics Specialists Conference , June 2008, pp. 1657 1666

... inverter topology that overcomes the limitations described above. The so-called Φ2 inverter (shown in Fig. 5) introduced in [14], [21], [22] is a highly simplified variant of the class Φ inverter [23]–[25]. It operates with a much reduced voltage stress across the switch (slightly over twice the inp ...
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... computational circuit. Channel A is identical except that the comparator is pinned out separately. Since the A channel may reach 0 V output at LVDT null, the A channel demodulator is usually triggered by the primary voltage (B Channel). In addition, a phase compensation network may be required to ad ...
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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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