What Is Ups Power Supply

Uninterruptible Power Supply(UPS) is a constant voltage and frequency uninterruptible power supply with energy storage device and inverter as the main component. It was originally used as a backup power supply, but with the development of technology and user needs, UPS has gradually become a power protection system with voltage stabilization, frequency stabilization, filtering, interference expansion, and voltage surfing prevention functions. It is increasingly used in various precision equipment to protect its normal operation.
The basic function of UPS is to achieve non-stop switching in the case of power failure and continue to supply power to other equipment. At the same time, it can stabilize the voltage when the voltage is unstable, and it has the function of suppressing the voltage surfing of the power grid to ensure the normal operation and data of the computer and network system without interference. According to the working mode, it is divided into three types: backup UPS, online UPS and online interactive UPS. Their characteristics are: backup UPS, online UPS and online interactive UPS.
UPS working principle: UPS power supply is mainly used to provide uninterrupted power supply to unit computers, computer network systems or other power electronic equipment. When the mains input is normal, the UPS stabilizes the mains voltage and supplies it to the load. At this time, the UPS is like an AC mains voltage stabilizer, and it also charges the battery inside the machine. When the mains power is interrupted (power outage), the UPS power supply immediately uses the power of the battery inside the machine to supply power to the load through the inverter conversion method, so that the load can maintain normal operation and protect the load's software and hardware from damage. UPS power supplies usually have automatic protection functions for excessive or too low voltages.