Synchronized Switching and Active Clamping of IGBT Switches in a Simple Marx Generator
Conference: PCIM Europe 2016 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/10/2016 - 05/12/2016 at Nürnberg, Deutschland
Proceedings: PCIM Europe 2016
Pages: 6Language: englishTyp: PDF
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Authors:
Sack, Martin; Hochberg, Martin; Mueller, Georg (Karlsruhe Institute of Technology, Institute for Pulsed Power and Microwave Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany)
Abstract:
For an experimental setup a simple Marx-type pulse generator for pulses in the microsecond range equipped with IGBT switches and a charging path with current-compensated inductors has been designed. To protect the switches against over-voltage active clamping based on combined capacitive and avalanche-diode coupling between collector and gate has been employed. Power supply for the gate driver circuitry and transmission of the trigger signal are inductively coupled to the stages. A current source based on inductors boosts the rise of the trigger signal and, hence, fosters synchronized switching of the stages. So far, a stack of three stages has been assembled and successfully tested.