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  2. Power supply - Wikipedia

    en.wikipedia.org/wiki/Power_supply

    An external power supply, AC adapter or power brick, is a power supply located in the load's AC power cord that plugs into a wall outlet; a wall wart is an external supply integrated with the outlet plug itself. These are popular in consumer electronics because of their safety; the hazardous 120 or 240 volt main current is transformed down to a ...

  3. Uninterruptible power supply - Wikipedia

    en.wikipedia.org/wiki/Uninterruptible_power_supply

    This provides double protection from both a power supply failure and a UPS failure, so that continued operation is assured. This configuration is also referred to as 1 + 1 or 2N redundancy. If the budget does not allow for two identical UPS units then it is common practice to plug one power supply into mains power and the other into the UPS ...

  4. AC adapter - Wikipedia

    en.wikipedia.org/wiki/AC_adapter

    The European Union defined a Common external power supply for "hand-held data-enabled mobile phones" (smartphones) sold from 2010, intended to replace the many incompatible proprietary power supplies and eliminate waste by reducing the total number of supplies manufactured. Conformant supplies deliver 5 VDC via a micro-USB connector, with ...

  5. 80 Plus - Wikipedia

    en.wikipedia.org/wiki/80_Plus

    For a given power supply, efficiency varies depending on how much power is being delivered. Supplies are typically most efficient at between half and three-quarters load, much less efficient at low load, and somewhat less efficient at maximum load. Older ATX power supplies were typically 60% to 75% efficient. To qualify for 80 Plus, a power ...

  6. 4 of the Best Budget-Friendly Products for a Good Night’s Sleep

    www.aol.com/4-best-budget-friendly-products...

    This article originally appeared on GOBankingRates.com: 4 of the Best Budget-Friendly Products for a Good Night’s Sleep. Related Articles. AOL. The 15 best subscription gifts of 2024; AOL.

  7. Category:Power supplies - Wikipedia

    en.wikipedia.org/wiki/Category:Power_supplies

    Pages in category "Power supplies" The following 25 pages are in this category, out of 25 total. This list may not reflect recent changes. ...

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