Appendix A
Specifications
NI PS-16 Power Supply User Manual
A-8
ni.com
Figure A-10.
Output Voltage Vs. Output Current, Typical
Peak Current Capability
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 cause a
voltage dip on the output. Detailed curves can be found in the
Peak Current
Capability
section of Chapter 2,
Installation and Configuration
.
Efficiency and Power Losses
Peak current voltage dips
Typical
From 24 V to 18.5 V
At 20 A for 50 ms, resistive load
Typical
From 24 V to 17.5 V
At 50 A for 2 ms, resistive load
Typical
From 24 V to 12 V
At 50 A for 5 ms, resistive load
AC100 V
AC120 V
AC230 V
Efficiency
Typical
90.7%
91.0%
91.6%
10 A, 24 V
Power losses
Typical
5.8 W
8.4 W
7.5 W
0 A
Typical
12.0 W
12.3 W
11.3 W
5 A, 24 V
Typical
24.6 W
23.7 W
23.2 W
10 A, 24 V
Typical
31.9 W
29.6 W
27.9 W
12 A, 24 V
Output Voltage
0
4
8
12
28 V
16
20
24
Adjustment
Range
Output Current
+60 °C
+25 °C
–25 °C
0
2
4
6
8
10 12 14 16 18 20 A