V-source sink operating boundaries
The quadrant within which the 2600B operates depends on the device-under-test (DUT) that is
connected to the 2600B output. The following example illustrates this operation using the 2600B
configured as a voltage source to discharge a 12 V power source (a battery).
Figure 71: Sourcing voltage while sinking current
The current compliance limit applies to both positive and negative currents. For example, if you set
the current compliance limit to 50 mA, the current limit applies to ±50 mA.
For this example, the 2600B is programmed to source 2 V and to limit current to 50 mA. When the
SMU turns on, the battery voltage is higher than the programmed voltage source value. Because the
SMU cannot deliver the programmed voltage, the SMU is placed in current compliance and begins to
sink current. Sink operation continues until the battery voltage equals the programmed voltage source
level and the current in the circuit drops to nearly 0 A.
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