Evaluation of a solid state opening switch (SOS) diode pulser for use in a electrochemical reactor

M. Giesselmann, M. Kristiansen, B. Grinstead, M. Wilson

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


A pulse generator, constructed by a group of Russian scientists, which is using a solid state opening switch (SOS), was characterized and tested. The diode acts similar to a step recovery diode but has voltage and current ratings that exceed the levels in US manufactured step-recovery diodes by orders of magnitude. To the authors knowledge, there are no US manufactured diodes for the application described here. With the load chosen for this paper, the generator produces pulses of 100 kV amplitude and 10 ns half width, using a 600V DC supply. The maximum pulse repetition rate is 100 Hz, limited by thermal considerations of the primary charging resistor. This limit could be easily overcome by using a switch-mode power supply to charge the primary capacitors. This pulser can be used to generate partial discharges in a chemical reactor in order to produce Ozone for a variety of industrial uses such as sterilization, oxidation, NOx or SOx removal from exhaust gases, etc. The greatest advantage is the long lifetime of this all solid- state device.

Original languageEnglish
Pages (from-to)588-591
Number of pages4
JournalConference Record - IAS Annual Meeting (IEEE Industry Applications Society)
StatePublished - 2000
Event35th IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy - Rome, Italy
Duration: Oct 8 2000Oct 12 2000


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