uninterruptible power supply - définition. Qu'est-ce que uninterruptible power supply
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Qu'est-ce (qui) est uninterruptible power supply - définition


Uninterruptible power supply         
  • A large data-center-scale UPS being installed by electricians
  • UPS output waveform (yellow) compared to normal 120 VAC 60 Hz power waveform (violet)
  • Internal view of a solar inverter. Note the many large capacitors (blue cylinders), used to store energy briefly and improve the output waveform.
ELECTRICAL DEVICE THAT USES BATTERIES TO PREVENT A POWER FLOW INTERRUPTION
Uninterruptible Power Supply; UPS (uninterruptible power source); Uninterruptible power supply unit; UPS unit; Standby power system; Uninterrupted Power Supply; Internal ups; Some UPS manufacturers; Uninterruptible power supplies; Uninterruptable power supply; Uninterruptible power source; Battery backup; Battery-backup; Uninterrupted power supply; Back-ups; Back-up power; Continuous power supply; Electricity disruption; Alarm power supply; U.P.S. Systems; Voltage and frequency independent; Uninterruptable power supplies; Backup power supply; No-break
An uninterruptible power supply or uninterruptible power source (UPS) is an electrical apparatus that provides emergency power to a load when the input power source or mains power fails. A UPS differs from an auxiliary or emergency power system or standby generator in that it will provide near-instantaneous protection from input power interruptions, by supplying energy stored in batteries, supercapacitors, or flywheels.
Uninterruptible Power Supply         
  • A large data-center-scale UPS being installed by electricians
  • UPS output waveform (yellow) compared to normal 120 VAC 60 Hz power waveform (violet)
  • Internal view of a solar inverter. Note the many large capacitors (blue cylinders), used to store energy briefly and improve the output waveform.
ELECTRICAL DEVICE THAT USES BATTERIES TO PREVENT A POWER FLOW INTERRUPTION
Uninterruptible Power Supply; UPS (uninterruptible power source); Uninterruptible power supply unit; UPS unit; Standby power system; Uninterrupted Power Supply; Internal ups; Some UPS manufacturers; Uninterruptible power supplies; Uninterruptable power supply; Uninterruptible power source; Battery backup; Battery-backup; Uninterrupted power supply; Back-ups; Back-up power; Continuous power supply; Electricity disruption; Alarm power supply; U.P.S. Systems; Voltage and frequency independent; Uninterruptable power supplies; Backup power supply; No-break
<hardware> (UPS) A battery powered power supply unit that is guaranteed to provide power to a computer in the event of interruptions in the incoming mains electrical power. Different rating UPSs will provide power for different lengths of time. Modern UPSs connect to the computer's serial port and provide information such as battery time remaining, allowing the computer to shut down gracefully before complete loss of power. (1996-12-11)
Power supply unit (computer)         
  • 24-pin ATX motherboard power plug; pins 11, 12, 23 and 24 form a detachable separate four-pin plug, making it backward compatible with 20-pin ATX receptacles
  • Connector ATX12VO
  • archive-date = October 21, 2014
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  • 12&nbsp;V only connector on a Fujitsu mainboard
  • A semi modular power supply to the left and a non-modular power supply to the right
  • 4-pin peripheral power connector
  • Various connectors available from a computer PSU
  • A typical installation of an ATX form factor computer power supply
  • Voltage converter for 80486DX4 processors (5&nbsp;V to 3.3&nbsp;V). Note the heat sink on the [[linear regulator]], required to dissipate the wasted power.
  • PCB]] of a power supply from an IBM XT clone
  • A typical XT PSU power switch, which is an integral part of the PSU.
INTERNAL COMPUTER COMPONENT THAT PROVIDES POWER TO OTHER COMPONENTS
Modular power supply; Power supply rail; EPS12V; ATX power supply; Power-supply tester; Computer PSU; PC Power Supplies; Power Supply Tester; Modular power supply unit; Computer psu; Computer power; PC power supply; Computer power supply; Entry-Level Power Supply Specification; Power Supply Unit (Computer); Single-voltages; Single-voltaged; ATX PSU; Power supply tester; Modular Power Supply Unit; PSU MTBF; PSU life span; PSU reliability; 5VSB (5V Standby) Signal; SFX (PSU); Efficiency of computer supplies
A power supply unit (PSU) converts mains AC to low-voltage regulated DC power for the internal components of a computer. Modern personal computers universally use switched-mode power supplies.