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026-1704 MultiFlex I/O Board - Emerson Climate Technologies
026-1704 MultiFlex I/O Board - Emerson Climate Technologies

... +12VDC output voltage points for use in powering transducers or other input devices that require power. On the RS485 Network, the MultiFlex combination input/output boards present themselves to the Einstein or REFLECS site controller as 16AI Analog Input Boards, 8RO Relay Output Boards, 8DO Digital ...
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a potential study of piezoelectric energy harvesting in car vibration
a potential study of piezoelectric energy harvesting in car vibration

... by the mean of vibration is one of the most conventional because the source of vibration is present almost everywhere. Furthermore, it is environmental friendly and does not pollute the environment. For this project, Micro Generating System Using Piezoelectric for Low Energy System, car engine has b ...
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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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