UPS
UPS（Uninterruptible Power System ）: The uninterruptible power supply is an uninterruptible power supply with constant voltage and constant frequency, which contains an energy storage device and takes the inverter as the main component. It is mainly used to provide uninterrupted power supply to a single computer, computer network system or other power electronic equipment. When the mains input is normal, the UPS will supply the mains voltage to the load after voltage regulation. At this time, the UPS is an AC mains voltage regulator, and it also charges the battery in the machine. When the mains supply is interrupted (accidental power failure), the UPS immediately supplies 220V AC power to the load through inverter conversion to ensure that the load works properly and the load software and hardware are protected from damage. UPS devices generally provide protection against both too high and too low voltages.
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