What is the role of UPS power supply?

 What is the role of UPS power supply?

The uninterruptible power supply (UPS) is a system equipment that connects batteries (mostly lead-acid maintenance-free batteries) 

with the host and converts direct current into mains electricity through the host inverter and other module circuits. 

It is mainly used to provide a stable and uninterrupted power supply to a single computer, computer network system or other power electronic equipment such as solenoid valves, pressure transmitters, etc.

With the increasingly high requirements of computer application system for power supply, UPS has been paid more and more attention, and gradually developed into a power protection system with voltage stabilization, frequency stabilization, filtering, antielectromagnetic and radio frequency interference, anti-voltage surfing and other functions. 

Especially in the grid line and power supply quality is not too high, anti-interference technology is backward, at the same time the computer system to the power supply is relatively high, the role of UPS is more obvious