A principle of constructing a combined semiconductor switch based on a diode assembly and an assembly of reverse switch-on dynistors (RSDs) is considered. The diode assembly serves as a sharpener of current pulses switched by the RSD assembly. The results of tests of a combined switch, which forms 3.5-kV voltage pulses with a duration of 1μs and a rise time of 10 ns at a load of 10Ω, are presented. Ways of enhancing the switching capabilities of RSD switches with diode sharpeners are presented.
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