Datasheet

UB10.242
U–Series
24V, 10A, DC-UPS
10. EFFICIENCY AND POWER LOSSES
Efficiency typ. 97.8% Normal mode, 10A output current, battery fully charged
Power losses typ. 2.9W Normal mode, 0A output current, battery fully charged
typ. 5.5W Normal mode, 10A output current, battery fully charged
typ. 7.2W During battery charging, 0A output current
typ. 18.5W Buffer mode, 10A output current
Fig. 10-1 Efficiency at 24V, typ. Fig. 10-2 Losses at 24V, typ.
Efficiency vs. output
current in normal mode
94.5
39
95.5
96.0
97.0
15A
95.0
96.5
97.5
98%
Ou
t
p
u
t
C
u
r
r
e
n
t
5 7 11 13
Power losses versus output current
0
07.5
6
12
15A
3
9
15
18W
Ou
t
p
u
t
C
u
r
r
e
n
t
2.5 5 10 12.5
A
B
A: Buffer Mode
B: Charging Mode
C: Normal Mode
C
11. FUNCTIONAL DIAGRAM
Fig. 11-1 Functional diagram
-
+
-
+
DC- UPS
24V
Power
Supply
Step-up
Converter
Battery
Charger
Electronic
Current
Limiter
Battery
Tester
+
-
12V Battery
+
-
Buffered
Load
Cut-off
Relay
Input Output
Battery
Diagnosis LED (yellow)
Status LED (green)
Inhibit +
Controller
Check Wiring LED (red)
Replace Battery
Buffering
Contact
Ready Contact
Battery Temperature
(7)
Inhibit -
(8)
(1)
(2)
(3)
(4)
(5)
(6)
Input Fuse
&
Reverse
Polarity
Protection
*
Temp.
*) Return current protection; This feature utilizes a Mosfet instead of a diode in order to minimize the voltage drop and power
losses.
Oct. 2009 / Rev. 1.0 DS-UB10.242-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.
www.pulspower.com Phone [phone] Germany
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