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5-12
Source-Measure Concepts
Where within the boundaries the SourceMeter operates depends on the load (DUT) that is
connected to its output. Figure 5-6 shows operation examples for resistive loads that are 50
Ω
and 200
Ω
, respectively. For these examples, the SourceMeter is programmed to source 100mA
and limit 10V.
In Figure 5-6A, the SourceMeter is sourcing 100mA to the 50
Ω
load and subsequently mea-
sures 5V. As shown, the load line for 50
Ω
intersects the 100mA current source line at 5V.
Figure 5-6B shows what happens if the resistance of the load is increased to 200
Ω
. The DUT
load line for 200
Ω
intersects the voltage compliance limit line placing the SourceMeter in com-
pliance. In compliance, the SourceMeter will not be able to source its programmed current
(100mA). For the 200
Ω
DUT, the SourceMeter will only output 50mA (at the 10V limit).
Notice that as resistance increases, the slope of the DUT load line increases. As resistance
approaches infinity (open output), the SourceMeter will source virtually 0mA at 10V. Con-
versely, as resistance decreases, the slope of the DUT load line decreases. At zero resistance
(shorted output), the SourceMeter will source 100mA at virtually 0V.
Regardless of the load, voltage will never exceed the programmed compliance of 10V.
Summary of Contents for 6430
Page 26: ......
Page 32: ......
Page 78: ...2 14 Connections ...
Page 98: ...3 20 Basic Source Measure Operation ...
Page 138: ...5 30 Source Measure Concepts ...
Page 156: ...6 18 Range Digits Speed and Filters ...
Page 168: ...7 12 Relative and Math ...
Page 176: ...8 8 Data Store ...
Page 202: ...9 26 Sweep Operation ...
Page 248: ...11 22 Limit Testing ...
Page 310: ...16 6 SCPI Signal Oriented Measurement Commands ...
Page 418: ...17 108 SCPI Command Reference ...
Page 450: ...18 32 Performance Verification ...
Page 477: ...A Specifications ...
Page 489: ...B StatusandErrorMessages ...
Page 498: ...B 10 Status and Error Messages ...
Page 499: ...C DataFlow ...
Page 503: ...D IEEE 488BusOverview ...
Page 518: ...D 16 IEEE 488 Bus Overview ...
Page 519: ...E IEEE 488andSCPI ConformanceInformation ...
Page 523: ...F MeasurementConsiderations ...
Page 539: ...G GPIB488 1Protocol ...
Page 557: ......