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Neutral Point Clamped (Npc) Type Multilevel Inverter

... NPC type Multilevel inverters plays vital role in the field of power electronics and being extensively used in various industrial and commercial applications because it possess low electromagnetic interference and the efficiency is considerably high. NPC Multilevel inverters have become more favoure ...
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... cables. Simultaneously, the bypass capacitor inside the antenna module acts as an electrical short. As a result, the MAX2140's electrical ground rises above the electrical ground of the antenna module. This difference creates for a short time a forward voltage on the MAX2140's internal ESD diode, wh ...
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< 1 ... 2268 2269 2270 2271 2272 2273 2274 2275 2276 ... 2646 >

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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