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U–Series
10. E
FFICIENCY AND
Efficiency
Power losses
Fig. 10-1 Efficiency at 24V, typ.
Efficiency vs. output
current in normal mode
98%
97.5
97.0
96.5
96.0
95.5
95.0
94.5
3
5
7
11. F
UNCTIONAL
24V
Power
Input
Supply
*)
Return current protection; This feature utilizes a Mosfet instead of a diode in order to minimize the voltage drop and power
losses.
May. 2008 / Rev. 1.1 DS-UBC10.241-EN
All parameters are specified at an input voltage of 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time
unless otherwise noted. It is assumed that the input power source can deliver a sufficient output current.
P
L
OWER
OSSES
typ.
typ.
typ.
typ.
9
11
13
15A
D
IAGRAM
Fig. 11-1 Functional diagram
DC-UPS Control unit with integrated battery
Input Fuse
+
&
*
Reverse
Polarity
-
Protection
Battery Charger
&
Tester
Cut-off
Relay
12V 5Ah battery
-
Fuse
www.pulspower.com Phone +49 89 9278 0
UBC10.241, UBC10.241-N1
97.8%
Normal mode, 10A output current, battery fully charged
2.9W
Normal mode, 0A output current, battery fully charged
5.5W
Normal mode, 10A output current, battery fully charged
5.0W
During battery charging, 0A output current
Fig. 10-2 Losses at 24V, typ.
Power losses versus output
current in normal mode
8W
7
6
5
4
3
2
1
0
0
2.5
Electronic
Current
Limiter
Step-up
Converter
Controller
(5)
(1)
(2)
(3)
(4)
Ready
Replace
Buffering
Contact
Battery
Contact
Contact
Germany
24V, 10A, DC-UPS
5
7.5
10
12.5
15A
+
Buffered
Output
Load
-
Status LED (green)
Diagnosis LED (yellow)
Check Wiring LED (red)
Buffer-time Limiter
10s, 30s, 1m, 3m, 10m,
Inhibit +
(7)
(8)
Inhibit -
(6)
8/23
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