Xtreme Power Conversion Corporation
M90S-4S User’s Manual
Page 24
Uninterruptible Power Supply
Standby Mode Diagram
3.3.3 Line Mode
In Line Mode, the rectifier derives power from the utility power and supplies DC power to the inverter and the
charger charges the battery. The inverter filters the DC power and converts it into pure and stable AC power to the
load.
Line Mode Diagram
3.3.4 Battery Mode
The UPS automatically transfers to Battery mode if the utility power fails. There is no interruption in power to the