Appendix A
Specifications
©
National Instruments Corporation
A-7
NI PS-15 Power Supply User Manual
Output
Figure A-10.
Output Voltage Vs. Output Current, Typical
Output voltage
Nominal
24 V
—
Adjustment range
Minimum
Maximum
24–28 V
30 V
Guaranteed
At clockwise end position of potentiometer
Factory setting
—
24.1 V
±0.2%, at full load, cold unit
Line regulation
Maximum
70 mV
90 V
AC
to 132 V
AC
or 180 V
AC
to 264 V
AC
Load regulation
Maximum
100 mV
Static value, 0A
→
5A
→
0A
Ripple and noise voltage
Maximum
50 mVpp
20 Hz to 20 MHz, 50
Ω
Output capacitance
Typical
1,800 µF
—
Output current
Nominal
Nominal
Nominal
Nominal
6 A
*
5 A
5.1 A
*
4.3 A
At 24 V, ambient < 45 °C, refer to Figure A-10
At 24 V, ambient < 60 °C, refer to Figure A-10
At 28 V, ambient < 45 °C, refer to Figure A-10
At 28 V, ambient < 60 °C, refer to Figure A-10
Output power
Nominal
Nominal
144 W
*
120 W
Ambient < 45 °C
Ambient < 60 °C
Short-circuit current
Minimum
Maximum
10 A
14 A
Load impedance 200 m
Ω
, refer to Figure A-10
Load impedance 200 m
Ω
, refer to Figure A-10
*
The NI PS-15 may respond with a thermal shut-down when continuously loaded with more than 120 W and operated with
a MAINS voltage of 100 V or below.
Output Voltage
0
8
4
8
12
28 V
16
20
24
12 A
10
6
2
Adjustment
Range
Output Current
0
4