Domestic inverter UPS role?

  Domestic inverter UPS: power input in normal, input power through mutual throwing device to the important load power supply, at the same time the system controller automatically power detection and the charger to charge the battery management. Usually EPS charger capacity equivalent to only10% of battery capacity (Ah), only need to provide the battery float chargingor power supply function, does not need to have the ability to provide DC power supply directly to the inverter. At this time, the city electricity throughmutual investment in EPS for users to emergency power supply. At the same time, in the control system of the EPS controller, inverter stopped working in the automatic shutdown state. In the actual use of the user load is a power source, usually called the EPS emergency power supply in a sleep state, can effectively achieve the effect of saving energy. When the input power supply interruption or electric voltage limit (± 15% and ± 20% rated input voltage),command control system automatic switching device (0.1~4) in S short time switching to the inverter power supply, EPS system is provided in the battery DC power support, to supply the user load.  domestic inverter UPS  when the input voltage to resume normal work, the system controller EPS to send command to run off the inverter, also through mutual investment switch from inverter to AC bypass power supply switching operation. Then EPS and  pure sine wave UPS  in providing power to the load via AC bypass power supply path, while continuing to charge the battery through the rectifier charger.