Section 7: Typical applications
Model 2290-5 5 kV Power Supply User's Manual
7-4
2290-5-900-01 Rev. A/December 2013
Program example 2
Linear voltage sweep with Model 2290-5 and current measurements with Model 263xB
The next figure shows how to connect the interlock circuits of the Model 2290-5 and Keithley Model
263xB SourceMeter instrument with the normally-open switch of the test fixture:
Figure 13: Interfacing the interlocks of the Model 2290-10 and the Model 263xB SourceMeter
Instrument to the test fixture
The output of the Model 2290-5 can only be turned on when the interlock is engaged. The interlock is
engaged when the interlock pin is pulled high through a switch to more than +3 V. The interlock is
disengaged when the signal applied is less than +1.2 V.
The interlock is intended for use through a normally open switch, which may be installed on the lid of
a test fixture, on the enclosure of a semiconductor prober or device handler, or on the door (or doors)
of a test equipment rack.
In the next example, the reverse-bias sweep across the diode is performed like program example 1.
However, the Model 263xB System SourceMeter is used to obtain more accurate leakage current
measurements on the diode. This example may also be easily applied to measuring the drain leakage
current of a MOSFET, or collector leakage current of a BJT or IGBT.
Equipment Needed:
•
1 high-voltage diode enclosed in a safe test fixture
•
1 Model 2290-5 high voltage power supply
•
1 Model 263xB system SourceMeter
•
2 Model 2290-5-SHV cables
•
2 Model 2290-5-SHVBH bulkhead connectors
•
1 Model 2290-PM-200 protection module
•
2 Model 7078-TRX cables to connect the Model 263xB to the protection module
•
2 GPIB cables to connect the Model 2290-5 and the Model 263xB to a computer with a GPIB
interface
