QS20.481 Datasheet, PDF (7/25 Pages) PULS GmbH – 48V, 10A, SINGLE PHASE INPUT

Q-Series
QS20.481
48V, 10A, SINGLE PHASE INPUT
Peak current capability (up to several milliseconds)
The power supply can deliver a peak current which is higher than the specified short term current. This helps to start
current demanding loads or to safely operate subsequent circuit breakers.
The extra current is supplied by the output capacitors inside the power supply. During this event, the capacitors will be
discharged and causes a voltage dip on the output. Detailed curves can be found in chapter 22.2.
Peak current voltage dips
typ. from 48V to 39V at 20A for 50ms, resistive load
typ. from 48V to 34V at 50A for 2ms, resistive load
typ. from 48V to 32V at 50A for 5ms, resistive load
Fig. 6-1 Output voltage vs. output current,
typ.
Output Voltage
56V
48
B
40
32
C
A
24
16
A ^{Short term <5s then auto}
switching to curve B + C
8
B Continuously available
C Below 40Vdc hiccup mode
0
Output
Current
0 2.5 5 7.5 10 12.5 15 17.5 20A
Fig. 6-2 Bonus time vs. output power
10s
9
8
7
6
max
5
4
3
min
typ
2
1
Output Power
0
528W 576W 624W 672W 720W 768W
Fig. 6-3 Short-circuit on output, hiccup mode (typ.)
Output
Current
20A
Start of
short circuit
End of
short circuit
0
t
2s
17s
2s
17s
2s
17s
Fig. 6-4 BonusPower^® recovery time
Power
Demand
100%
Limitation by
Power Manager
Output
Voltage
t
Bonus
Time
Recovery Time
Bonus Power disabled
t
The BonusPower^® is available as soon as power comes on and immediately after the end of an output short circuit or
output overload.
Fig. 6-5 BonusPower^® after input turn-on
Fig. 6-6 BonusPower^® after output short
Input
Voltage
Output
Voltage
100%
Output
Power
150% Bonus
Power
Output
Voltage
Short of
Output
Output
Power
150%
Bonus
Power
100%
Oct. 2013 / Rev. 2.2 DS-QS20.481-EN
All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone [phone] Germany
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