Backup UPS

Backup UPS: usually in the battery charge state, in the event of a power failure, the inverter is switched to the operating state, and the DC power provided by the battery is converted to a stable AC output. Therefore, the standby UPS is also called an offline UPS. The advantages of standby UPS power supply are: high operating efficiency, low noise, and relatively cheap prices. It is mainly applicable to occasions where mains power is not fluctuating and is not suitable for power quality. It is more suitable for home use. However, this type of UPS has a switching time problem and is therefore not suitable for use in critical places where power cannot be interrupted. However, in fact, the switching time is very short, generally between 2 and 10 milliseconds, and the switched-mode power supply of the computer itself should be able to maintain about 10 milliseconds when the power is turned off. Therefore, the personal computer system generally does not appear due to this switching time. problem. Standby UPS can only continue to supply power for several minutes to tens of minutes, mainly to allow you to have time to back up data and end the work as soon as possible, and its price is also low. For less critical computer applications, such as personal home users, can be equipped with low-power standby UPS.