A compact modulator system using inductive energy storage and a diode as an opening switch was investigated. The system was designed around a Russian diode that has characteristics similar to those of a step-recovery diode except that the reverse current density is 10-100 times larger than in U.S. manufactured diodes. The main goal of this investigation was to characterize the Russian diode and develop an understanding of its operation for possible improvement and integration into nanosecond pulse generators. The basic modulator circuit designed uses IGBT's in the forward pumping circuit and is capable of delivering 5 kV at 400 A into the diode. Using this forward pumping circuit, diode voltage and current measurements were made at several input power levels. In addition, data obtained using this test stand was used to produce a computer simulation model of the diode for a more thorough circuit analysis.
|Number of pages||4|
|Journal||IEEE Conference Record of Power Modulator Symposium|
|State||Published - 1996|
|Event||Proceedings of the 1996 22nd International Power Modulator Symposium - Boca Raton, FL, USA|
Duration: Jun 24 1996 → Jun 27 1996