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2 General information
2.1 Technology
i
The PROTECT D. is an U
ninterruptible Powe
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
