Section 7: Theory of operation Model 2601B-PULSE System SourceMeter Instrument Reference Manual
7-8 2601B-PULSE-901-01A April 2020
Voltage source operating boundaries
The following figure shows the operating boundaries for the V-source when the pulser is disabled.
Only the first quadrant of operation is shown. Operation in the other three quadrants is similar.
The following graph shows the output characteristics for the V-source. As shown, the 2601B-PULSE
can output up to 6.06 V at 3 A, or 40.4 V at 1 A. Note that when sourcing more than 6.06 V, current is
limited to 1 A.
Figure 102: Output characteristics
The following graph shows the limit lines for the V-source. The voltage source limit line represents the
maximum source value possible for the presently selected voltage source range. For example, if you
are using the 6 V source range, the voltage source limit line is at 6.3 V. The current compliance limit
line represents the actual compliance in effect (see Compliance limit principles (on page 7-2)). These
limit lines are boundaries that represent the operating limits of the instrument for this quadrant of
operation. The operating point can be anywhere inside (or on) these limit lines. The limit line
boundaries for the other quadrants are similar.
Figure 103: Limit lines
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