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S4906137141

... has longer life with little maintenance, highly mobile and portable because of light weight. Advancement is going on in solar power generation technologies day by day. A simple way to increase the output voltage of Solar Energy sources is to connect a number of Solar Panel in series and use a conven ...
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MAX1708 High-Frequency, High-Power, Low-Noise, Step-Up DC-DC Converter General Description

... switching noise spectrum is constrained to the 600kHz fundamental and its harmonics, allowing easy postfiltering for noise reduction. External clock synchronization capability allows for even tighter noise spectrum control. Quiescent power consumption is less than 1mW to extend operating time in bat ...
Power Supply Rejection for Low Jitter Clocks
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Evaluates: MAX1572 MAX1572 Evaluation Kit General Description Features
Evaluates: MAX1572 MAX1572 Evaluation Kit General Description Features

... ________________________________________________________________ Maxim Integrated Products ...
< 1 ... 1963 1964 1965 1966 1967 1968 1969 1970 1971 ... 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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