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AAT4616A 数据资料DataSheet下载
AAT4616A 数据资料DataSheet下载

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Chapter no. 6 - WordPress.com
Chapter no. 6 - WordPress.com

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Slide 1
Slide 1

... • Circuits usually include three components. One is a source of voltage difference that can be provided by a battery or an electrical outlet. ...
owner`s manual
owner`s manual

... POWER SWITCH: The POWER switch applies AC voltage to the power supply and causes the weld capacitors to charge to a voltage level determined by the setting of the WELD VOLTAGE CONTROL. Also, the charge time is dependent on the setting of the WELD VOLTAGE CONTROL, ranging from 1 to 3 seconds. When th ...
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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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