An Uninterruptible Power Supply (UPS) is one of the most effective ways to protect electrical equipment from power disturbances. It is an electrical device that provides emergency power to a load when the main power source, typically the utility grid, fails.
At home, a UPS is commonly used to protect personal computers. Other areas that require UPS protection include data centers, industrial process backup systems, and military operations. UPS systems are available in several types: online UPS, offline UPS, and line-interactive UPS.
An online UPS supplies inverter power directly to the load at all times. An offline UPS activates the inverter only when utility power is unavailable. A line-interactive UPS is an offline UPS with an automatic voltage regulator (AVR) or line conditioner for improved voltage stability.
The UPS inverter is the component that converts DC power from the battery into AC power for the load. IGBT rectifier technology represents the latest and most effective advancement in the UPS industry. By operating at high frequency, IGBT rectifiers efficiently convert AC to DC, reducing harmonic distortion and minimizing the size of upstream components. This results in lower initial costs and reduced operational expenses while improving overall system efficiency and reliability.