14.1. Power supply
The device utilizes a universal range switch mode power supply
with active Power Factor Correction (PFC).
The power supply is equipped with mains voltage monitoring,
overvoltage and undervoltage protection as well as an inrush
current limiter.
14.1.1. Active Power Factor Correction (PFC)
The active Power Factor Correction provides a clean and highly
efficient sinusoidal current draw, thus providing highest
performance under adverse mains conditions or when very long
power cabling is necessary.
The power factor is above 0.9 for mains power consumption
values of 500 W or higher.
14.1.2. Mains voltage monitoring
The mains voltage and frequency are recorded by the power
supply and can be viewed within R1 or via the Web Remote
interface. Where voltages outside of this range are present, a self-
resetting protective circuit responds quickly to isolate the internal
"Main Power Supply" leaving only a supervisory circuit running to
monitor the mains voltage. The device accepts mains voltages of
up to 400 V AC
RMS
without damage to the device in case of a
missing neutral line or running phase to phase.
14.1.3. Rated mains voltage
The power supply enables the device to be used with any mains
supply worldwide without the need for manual action.
The power supply incorporates a "Mains Power Supply" and an
"Auxiliary Power Supply".
Mains Power Supply
The Mains Power Supply feeds the power amplifiers within the
nominal mains range of 100 to 240 V.
Auxiliary Power Supply
The Auxiliary Power Supply feeds the DSP section and the device
control and operates within the range from 55 V AC
RMS
to
400 V AC
RMS
.
14. Operation (Hardware references)
d&b 10D/30D Manual 1.10 en76
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