
Section 3: LPTLib command reference
S530/S540 KTE Linear Parametric Test Library (LPTLib) User's Manual
3-10
S530-900-01 Rev. E / September 2017
Example
double icmeas[10], ifrc[10];
.
.
ifrc[0]=1.0e-10;
for (i=1; i<10; i++) /* Create decade array from */
/* 1.0E-10 to 1.0E-1. */
ifrc[i]=10.0*ifrc[i-1];
.
.
conpin(SMU1, 1, 0); /* Base connection. */
conpin(SMU2, 2, 0); /* Collector connection. */
conpin(GND, 3, 0);
limiti(SMU2, 200.0E-3); /* Reset I limit to maximum. */
smeasi(SMU2, icmeas); /* Define collector current */
/* array. */
forcev(SMU2, 5.0); /* Force vce bias. */
asweepi(SMU1, 10, 10.0E-3, ifrc); /* SweepIB, 10 points, 10 ms */
/* apart. */
This example gathers data to construct a graph showing the gain of a bipolar device over a wide range of
base currents. A fixed collector-emitter bias is generated by SMU2. A logarithmic base current from
1.0E-10 to 1.0E-1A is generated by SMU1 using the
asweepi
command. The collector current applied by
SMU2 is measured 10 times by the
smeasi
command. The data gathered is then stored in the
icmeas
array.
Also see
(on page 3-41)
(on page 3-64)
(on page 3-82)
(on page 3-84)