See Figure 1 for systems applicable to the UPS system.
Figure 1. Block diagram
• An input filter reduces transients on the main supply.
• For maintaining full battery charge, AC power is rectified and regulated in the
rectifier feeding power to the inverter and battery converter.
• DC power is converted to AC in the inverter and passes it on to the load.
• Power to the load is maintained from the battery during a power failure.
• The converter increases voltage for the inverter as required.
2.2 Efficiency Optimizer Function
The Efficiency Optimizer function is a new feature for the UPS that increases the cost
effectiveness of the UPS by minimizing power losses and reduces power consumption.
Alternating between bypass and on-line modes is achieved automatically and in
accordance with the conditions of the utility power. On-line mode may be used during
times of utility power irregularities. The bypass mode should be used when power flows
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