Circuit Block Diagram - Omron POWLI BY50FW Instruction Manual

Reference
D. Circuit block diagram
This UPS outputs power input from commercial power as it is and charges the battery at the same time. If a
power failure or voltage variation occurs, the UPS automatically switches to operation using the battery and
continues power output. At this time, the beeper sounds intermittently. When the power is recovered, normal
operation using commercial power is automatically recovered. (The beeper stops.) You do not have to perform
any operation.
Input Overcurrent Protection
Charging
circuit
Battery
Inverter
circuit
DC-DC
converter
66
Power Supply Output
Receptacle
Commercial Power Mode
Battery Mode