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DN1021 - How to Produce Negative Output Voltages from Positive
DN1021 - How to Produce Negative Output Voltages from Positive

... Linear Technology’s DC/DC step-down μModule ® regulators are complete switchmode power supplies in a surface-mount package. They include the DC/DC controller, inductor, power switches and supporting circuitry. These highly integrated regulators also provide an easy solution for applications that req ...
applied voltage test system for transformers
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Evaluates: MAX5943A/B/C/D/E MAX5943A Evaluation Kit General Description Features

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ICS552-02 L S 2 I
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Aalborg Universitet Single stage grid converters for battery energy storage

... In Fig.7. the output voltages for the 3L-NPC converter are presented for the considered switching frequency of 1050Hz, the same frequency as the output voltage. The advantage of the level-shift PWM over the phase-shift PWM can be noticed by comparing the output line voltage with 3L-ANPC and 3L-FC, F ...
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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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