Power supply is not a specific brand but a broad category of products that provide electrical energy to various devices and systems. These products are manufactured by numerous companies worldwide, such as Siemens (Germany), ABB (Switzerland), and Delta Electronics (Taiwan). Power supplies serve industries like industrial automation, telecommunications, healthcare, and consumer electronics. Key products include AC/DC converters, DC/DC converters, uninterruptible power supplies (UPS), and programmable power supplies. These devices ensure stable and efficient power delivery, critical for the operation of machinery, computers, and other electronic equipment.

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