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Backup batteries are used in uninterruptible power supplies (UPS), and provide power to the computers they supply for a variable period after a power failure, usually long enough to at least allow the computer to be shut down gracefully. [4] These batteries are often large valve regulated lead-acid batteries in smaller or portable systems.
A large data-center-scale UPS being installed by electricians. An uninterruptible power supply (UPS) or uninterruptible power source is a type of continual power system that provides automated backup electric power to a load when the input power source or mains power fails.
For example, a 900-watt power supply with the 80 Plus Silver efficiency rating (which means that such a power supply is designed to be at least 85% efficient for loads above 180 W) may only be 73% efficient when the load is lower than 100 W, which is a typical idle power for a desktop computer. Thus, for a 100 W load, losses for this supply ...
1981 Sea Sonic enters the PC power supply market; 1984 Headquarters relocates to Shilin, Republic of China. 1986 The factory phases in Automated Test Equipment in production methodology, this is the first in switching power supply manufacturing in Taiwan. 1990 Second factory in Taoyuan County (now Taoyuan City), Taiwan begins operation.
All it takes is a sudden voltage spike or an intense electrical storm to fry your computer or TV. Choose safety first — and money too. This surge protector's also a backup power supply — and ...
A modern computer power supply is a switch-mode power supply that converts AC power from the mains supply, to several DC voltages. Switch-mode supplies replaced linear supplies due to cost, weight, efficiency and size improvements. The diverse collection of output voltages also have widely varying current draw requirements.