User`s guide

General Information - 2
23
Figure 2-1. Dc Source Output Characteristic
The operating point of the unit is determined by the voltage setting, current setting, and the load
resistance. In figure 2-1, operating point 1 is defined by the load line traversing the positive operating
quadrant in the constant voltage region. Operating point 2 is defined by the load line traversing the
positive operating quadrant in the constant current region.
NOTE: If you attempt to operate the dc source beyond its output ratings, the output of the unit
may become unregulated. This is indicated by the UNR annunciator on the front panel.
The output may also become unregulated if the ac line voltage drops below the minimum
rating specified in Appendix A.
Appendix A documents the dc source's specifications and supplemental characteristics.
Output
Voltage
Output
Current
3A
15V
ISET
-2.8A
VSET
C
C
r
e
s
i
s
t
i
v
e
l
o
a
d
l
i
n
e
C
V
r
e
s
i
s
t
i
v
e
l
o
a
d
l
i
n
e
0
1
2
+-
5A
-1.2A
Peak Current
capability for up
to 7 ms shown
by dotted lines