Characterization power semiconductors
Fully automatic test bench measures power semiconductors
Exhibitors
Location
Hall 11, Stand B06
Description
Semiconductors are indispensable in power electronic circuits. When designing a circuit, it is essential to know the switching and conducting properties of the power semiconductor used as exactly as possible for the thermal and electrical design. For each specific application, however, the characteristic values such as switching behavior, conduction loss and switching loss of the semiconductor are individual. Here, insufficient or difficult-to-adapt specifications from manufacturers make additional measurements of the semiconductors imperative. Measurements at manual test stations, which vary in design and setting, are usually very time-consuming, especially if a large number of operating points are to be measured. At the Institute of Electrical Engineering (ETI), an automated test bench has been developed for the characterization of semiconductor power devices, which evaluates switching on and off processes of the devices fully automatically and analyzes its loss processes. The measuring principle of double pulse test is used to determine the switching behavior and the switching energies. Parameters such as load current, intermediate DC link voltage and junction temperature can be set. This allows the conduction and switching behavior of the power semiconductors to be measured in different voltage, current and temperature combinations. For the operating points, the test bench provides multi-dimensional characteristic diagrams and graphically processed measurement results for complete characterization. The test bench was specially designed for silicon carbide (SiC)- and silicon (Si)-based semiconductor devices. By means of the test bench presented here, large series of measurements can be recorded and evaluated fully automatically and in a reproducible manner. You can get an overview of this technology at KIT stand. Detailed information can be exchanged individually in contact with the responsible scientific employees of KIT after the industry fair.
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Karlsruher Institut für Technologie (KIT)
- Kaiserstr. 12
- 76131 Karlsruhe
- Germany
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