National Instruments NI 9475 - Manual (Page 9)

© National Instruments Corp. 9 NI 9475 Operating Instructions and Specifications
Increasing Current Drive
Each channel has a continuous output current of 1 A. If you want
to increase the output current to a device, you can connect any
number of channels together in parallel. For example, if you want
to drive 4 A of current, connect DO<0..3> in parallel as shown
in Figure 3. You must turn all parallel channels on and off
simultaneously so that the current on any single channel cannot
exceed the 1 A rating.
Figure 3. Increasing the Current to a Device Connected to the NI 9475
NI 9475
DO3
DO1
DO0
DO2
4 A
+
_
COM
1 A
1 A
1 A
1 A
External
Power
Supply
De
vice
V
sup