What is the difference between portable UPS power supply and emergency power supply in terms of working principle?

The portable UPS power supply is used to supply the inverter with standard output voltage and battery after electric rectification and filtering. When the mains power is disconnected. The electricity in the battery is converted into a standard voltage by the inverter to supply the load, ensuring a green, stable and continuous power supply for the load.

The portable UPS power supply mains and electric equipment are isolated, and the mains will not directly supply power to the electric equipment, but will be converted into DC power when it arrives at the UPS. There are two paths, one for charging the battery, and the other for returning to AC power to supply power to the electric equipment. When the quality of mains power supply is unstable or power failure occurs, the battery will be switched from charging to power supply, and will not be switched back to charging until the mains power returns to normal. As long as the output power of the portable UPS is sufficient, it can supply power to any equipment using mains power.

The emergency power supply adopts single inverter technology, integrating charger, battery, inverter and controller. The battery detection and shunt detection circuits are designed inside the system, and the backup operation mode is adopted. When the mains power input is normal, the input mains power will supply power to important loads through the mutual transfer device. At the same time, the system controller will automatically detect the mains power and manage the charging of the battery pack through the charger.