When the pulser is disabled, the accuracy of the limit opposite in polarity from the source is
diminished unless the instrument is in sink mode. Enabling sink mode reduces the source limit
inaccuracy seen when operating in quadrants II and IV. Quadrants I and III show this source limit
inaccuracy.
For example, if a 12 V battery is connected to the voltage source (HI to battery +) that is programmed
for +10 V, sink operation occurs in the second quadrant (source +V and measure −I).
When using the SMU current source as a sink, always set the voltage compliance to a level
that is higher than the external voltage level. Failure to do so could result in excessive
current flow into the instrument and incorrect measurements. See Limits (on page 4-2) for
details about compliance limits.
The sink operating limits are shown in “Continuous power operating boundaries” in the
Model 2601B-PULSE Reference Manual.
Setting the sink mode using the front panel
To enable or disable the sink mode from the front panel:
1. Press the CONFIG key and then the SRC key.
2. Select V-SOURCE.
3. Select SINK-MODE.
4. Select ENABLE or DISABLE.
5. Press the ENTER key. Sink mode is enabled or disabled, as applicable.
6. Press the EXIT (LOCAL) key twice to return to the main display.
Setting the sink mode from a remote interface
To enable sink mode from the remote interface, send:
smua.source.sink = smua.ENABLE
To disable sink mode, send:
smua.source.sink = smua.DISABLE
To Next Page
Loading...
Need help?
General
