Keithley SourceMeter 2600 Series Reference Manual page 216

8-10 Source-Measure Concepts
Operating boundaries
Source or sink
Depending on how it is programmed and what is connected to the output (load or
source), the SourceMeter can operate in any of the four quadrants. The four
quadrants of operation are shown in
the first (I) or third (III) quadrant, the SourceMeter is operating as a source (V and
I have the same polarity). As a source, the SourceMeter is delivering power to a
load.
When operating in the second (II) or fourth (IV) quadrant, the SourceMeter is
operating as a sink (V and I have opposite polarity). As a sink, it is dissipating
power rather than sourcing it. An external source or an energy storage device,
such as a capacitor or battery, can force operation in the sink region.
Continuous power operating boundaries
Model 2601/2602 continuous power operating boundaries
The general operating boundaries for Model 2601/2602 continuous power output
are shown in
equation," described earlier in this section). In this drawing, the 3A, 6V and 1A,
40V magnitudes are nominal values. Also note that the boundaries are not drawn
to scale.
2600S-901-01 Rev. A / May 2006
Series 2600 System SourceMeters Reference Manual
Figure 8-3 (for derating factors, see
Return to Section 8 topics
Figure 8-3 and Figure
"General SourceMeter power
8-4. When operating in