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Izvestiya Vysshikh Uchebnykh Zavedenii. Elektronika

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When manufacturing experimental electronic equipment devices and purchasing electronic components from various suppliers, the task arises of input control of the purchased components in order to prevent the components not matching the datasheet parameters from getting into the manufactured devices. In this work, a hardware and software complex for IGBT and n-channel MOSFET parameters analyzing is presented. This complex makes it possible to measure the following parameters: threshold voltage at a drain/collector current of 1 mA, drain-source or collector-emitter breakdown voltage up to 1000 V at a current of 0,25 mA, gate charge during the active load switching with charge separation by components and the Miller charge measuring at a gate current of 1 mA, the on-state channel resistance or saturation voltage at a drain/collector current of up to 80 A in pulse mode with a pulse duration of 10 μs. The maximum gate voltage is set by the user in the range of 3–15 V, which makes it possible to test low-threshold MOSFETs with logic level gate drive. The developed software allows obtaining the output volt-ampere characteristic of the transistor, as well as the coulomb-volt characteristic of the gate at a given drain/collector voltage. The measurement data is transferred to a PC via a USB bus. To process the measurement results on a PC, a utility has been written that allows exporting measurement data to a CSV file for further processing, for example, in MathCad or Excel. The hardware part of the complex is powered from the USB bus, since the pulse mode of power consumption measurement does not exceed 2.5 W. The circuit of the hardware part of the developed complex doesn’t contain hard-to-find components, has a low cost due to use of the PC for measurement data storage and processing, and can be useful both for small laboratories and for organizing laboratory experiments on power electronics in educational institutions.
Vladimir V. Burlaka
Azov State Technical University (Russia, 287642, Donetsk People's Republic, Mariupol, Universitetskaya st., 7)
Sergey V. Gulakov
Azov State Technical University (Russia, 287642, Donetsk People's Republic, Mariupol, Universitetskaya st., 7)
Andrey Yu. Golovin
Azov State Technical University (Russia, 287642, Donetsk People's Republic, Mariupol, Universitetskaya st., 7)
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