Pulse source limit. SMU 2 controls the source limit for the combined SMUs. Set the current source
limit of SMU 1 to the maximum current allowed in Region 4:
smua.trigger.source.limiti = 10
Output-off mode:
smua.source.offmode = smua.OUTPUT_NORMAL
Output-off function:
smua.source.offfunc = smua.OUTPUT_DCVOLTS
Normal output-off current limit:
smua.source.offlimiti = 1e-3 --(default)
SMU 2 configuration (sources one-half of the total pulse voltage):
Source function:
smua.source.func = smua.OUTPUT_DCVOLTS
Source range:
smua.source.rangev = 20
Idle (bias) source level (source level at base of pulse):
smua.source.levelv = 0
Idle (bias) source limit (source limit at base of pulse). This is similar to the pulse source limit. Set the
SMU 2 idle source limit ten percent lower than the SMU 1 limit:
smua.source.limiti = 0.9
Pulse source level (source level at top of pulse):
smua.trigger.source.listv({-20})
Pulse source limit. SMU 2 controls the source limit for the combined SMUs. Set the current source
limit of SMU 2 ten percent lower than the source limit of SMU 1:
smua.trigger.source.limiti = 9
Output-off mode:
smua.source.offmode = smua.OUTPUT_NORMAL
Output-off function:
smua.source.offfunc = smua.OUTPUT_DCVOLTS
Normal output-off current limit (0.9 mA, which is 10% less than the SMU 1 output-off limit):
smua.source.offlimiti = 0.9e-3
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