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4 Operating the Power System
Front Panel Menu Reference
Select Output\Settings\Power.
Select a Range from the dropdown. Then press Select.
When changing ranges, the load input will be turned off, then back on again.
Set the Output Mode
This information applies to Keysight Models N678xA SMU and N679xA only.
For Keysight Models N678xA SMU and N679xA, you can select either Voltage priority or Current
priority mode. Power and Resistance priority modes are only available for N679xA load modules.
Voltage priority mode applies to Keysight Models N678xA SMU and N679xA. In this mode, the output
is controlled by a bi-polar constant voltage feedback loop, which maintains the voltage at its positive
or negative programmed setting. The voltage will remain at its programmed setting as long as the
load current remains within the current limit.
Current priority mode applies to Keysight Models N678xA SMU and N679xA. In this mode, the output is
controlled by a bi-polar constant current feedback loop, which maintains the current at its
programmed setting. The current will remain at its programmed setting as long as the load voltage
remains within the voltage limit.
Power priority mode applies to Keysight Models N679xA. In this mode, the load module will maintain
the output power at the specified programmed power level.
Resistance priority mode applies to Keysight Models N679xA. In this mode, the load module will sink a
current linearly proportional to the input voltage in accordance with the programmed resistance.
Front Panel Menu Reference
Select Output\Mode.
Select either Current, Voltage, Power, or Resistance priority. Then
press Select.
When switching between Current, Voltage, Power, or Resistance priority, the output is
turned off and the output settings revert to their power-on or *RST values. Refer to
Operating Mode Tutorial
Set the Slew Rate
The voltage slew rate determines the rate at which the voltage changes to a new programmed
setting.
96
SCPI Command
To select the lower range, program a value that
falls within the range:
POW:RANG 5,(@1)
SCPI Command
To set output 1 to current priority:
FUNC CURR,(@1)
for information about priority mode operation.
Keysight N6700C Series User's Guide
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