Uninterruptible Power Supply
A UPS is an electrical apparatus or device that supplies emergency backup power to PC’s, servers, network equipment, audio-video equipment and computer peripherals during short power outages and allows computer systems to safely shut down during prolonged blackouts. UPS systems also correct brown-outs and over voltages, stop damaging power surges and filters disruptive line noise.
The primary role of a UPS is to provide short term power when the input power source fails. A UPS provides instantaneous or nearly instantaneous protection from input power interruptions. When a UPS circuit senses a loss of power, it produces electricity by means of one or two attached batteries within a few thousandths of a second.
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