2 General information

2.1Technology

The PROTECT D. is an Uninterruptible Power i Supply (UPS) for such essential loads as PCs, workstations, servers, network components and

similar load devices, consisting of:

•Network filter with overvoltage protection (device protection / Class D) and mains energy backfeed protection

•Rectifier with PFC logic (power factor correction unit)

•Separate intelligent battery charger

in switch mode power supply technology

•Valve regulated battery system, maintenance-free design as energy storage with downstream DC/DC booster

•IGBT inverter for the continuous supply of connected loads with sinusoidal AC voltage

•Automatic bypass as additional passive redundancy

•Regulator on the basis of digital signal processor technology

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