Abstract
Control systems of high-voltage transistor switches are described. Possible ways to develop these systems are considered. A control system of the transistors of a high-voltage switch on the basis of a current loop is considered in detail. Signals for turning the transistors on and off arrive to their control boards from their common conductor with bipolar current pulses. A positive pulse turns the transistors on, while a negative pulse turns them off. The time interval between these pulses sets the time during which the switch is in the conducting state. The minimum duration of the conducting state is several microseconds, while the maximum duration is not limited. The results of tests of a switch prototype with an operating voltage of up to 4 kV are presented. The operation of the switch was demonstrated when obtaining rectangular pulses in the microsecond range across a resistive load. We also verified the possibility of forming pulses of damped oscillations at a frequency of 1 MHz by this device. The positive test results make it possible to develop switches for operating voltages of tens of kilovolts using the considered approach.
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Original Russian Text © A.V. Ponomarev, Yu.I. Mamontov, 2017, published in Pribory i Tekhnika Eksperimenta, 2017, No. 6, pp. 42–50.
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Ponomarev, A.V., Mamontov, Y.I. Control systems of high-voltage transistor switches. Instrum Exp Tech 60, 818–825 (2017). https://doi.org/10.1134/S0020441217060082
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DOI: https://doi.org/10.1134/S0020441217060082