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- Krest Technology
- Krest Technology

... in AC transmission grids, improving power line utilization and performance. Nowadays, Unified Power Flow Controllers (UPFC) are one of the most useful FACTS, allowing the simultaneous control of the bus voltage and line active and reactive power. However, due to high costs and reliability concerns, ...
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Evaluation Kit for the MAX687, MAX688, MAX689

... The MAX688 evaluation kit (EV kit) provides a regulated 3.3V output voltage while operating on input voltages from 3.5V to 11V. It delivers a 0.5A output current from a 3.5V to 5.75V input, with less than 200mV dropout. Operation with higher input voltages (up to 11V) is possible as long as the maxi ...
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IO-IIM Input Isolation Modules

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A simple experiment was devised to check out ground-loop effects....

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input 1 - Innovetech

... converters and no isolated multiinput dc–dc converters. In the following sections, two main types of multiinput converters are investigated In isolated multiinput dc–dc converters, high-frequency transformer is used in order to make electric isolation. High frequency transformer provides electric i ...
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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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