What is an uninterruptible power supply (UPS)?

UPS (Uninterruptible Power Supply), also known as Uninterruptible Power System, combines batteries (often maintenance-free lead-acid batteries) with a main unit to convert DC power to AC power through inverters and other circuit modules.

What is a double conversion uninterruptible power supply (UPS) system?

There are four main components in any online double conversion uninterruptible power supply (UPS) system: Rectifier; UPS Batteries; Inverter; and Static Bypass Switch. The UPS rectifier carries out several key functions. The first is to convert the input power from AC (Alternating Current) to DC (Direct Current).

What are the main components of a UPS system?

There are four main components in any online double conversion uninterruptible power supply (UPS) system: Rectifier; UPS Batteries; Inverter; and Static Bypass Switch. The UPS rectifier carries out several key functions.

What is the internal structure of a ups power supply?

Internal Structure of UPS Power Supply: Rectifiers: Rectifiers convert AC power to DC power. They serve two main functions: converting AC to DC for load supply after filtering, and providing charging voltage to the battery. Inverters: Inverters convert DC power to AC power and consist of an inverter bridge, control logic, and filtering circuit.

What makes a UPS uninterruptible?

Of the three main subsystems, the battery is what makes the system “uninterruptible”. Depending upon the system design, the battery can constitute as much as 50% of the cost of the UPS. Without a reliable battery, the operation of the entire data center can be put at risk.

How does an ups power supply work?

UPS power supplies consist of an AC + DC charging + DC-AC inverter system. The batteries in a UPS are charged when the mains power is available. In case of a power outage, the batteries immediately supply stored DC power to the inverter to convert it to AC power for the connected devices, ensuring continuous power supply.