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Registered Member #2941
Joined: Fri Jun 25 2010, 08:08AM
Location:
Posts: 143
sos diode stand for semiconductor opening switch ,it's some sort of high voltage version of the srd (step recoveries diode),they are use in nanosecond and picoseconds pulse generator,unfortunately except few company like fid technology,who use them in there generator they are not wide spread.my work is related to nanosecond pulse discharge so I want to build a generator for recherches purposes...
Registered Member #3414
Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
I found this:
Robert L. Druce, Hugh C. Kirbie, and Mark A. Newton Light-Weight DC to Very High Voltage DC Converter U.S. Patent 5,774,348 June 30, 1998 A dc-dc converter capable of generating output of 100 kilovolts without a transformer composed of a silicon-opening-switch (SOS) diode connected to allow a charging current from a capacitor to flow into an inductor. When a specified amount of charge has flowed through the SOS diode, it opens up abruptly, and the consequential collapsing field of the inductor causes a voltage and current reversal that is steered into a load capacitor by an output diode. A switch across the series combination of the capacitor, inductor, and SOS diode closes to periodically reset the SOS diode by inducing a forward-biased current.
Registered Member #2901
Joined: Thu Jun 03 2010, 01:25PM
Location:
Posts: 837
Oops, nevermind ... thought SOS == DSRD, but they are two different things.
It seems to me that patents have killed the commercial applications of the SOS diodes for the moment ... just not interesting to spend the money developing them commercially until the patents expire.
The Russians developed them ... the Americans have patents on all the patently obvious applications.
From "All-solid-state repetitive semiconductor opening switch-based short pulse generator" :
wrote ... The SOS is the key component of pulsed power generator based on SOS. Two pieces of parallel SOS-180–4 are used as the final pulse compression unit in SPG100. The SOS-180–4 is manufactured at Institute of Electrophysics in Russian Ekaterinburg,
So you could contact them, unlikely to be cheap though.
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sos diode
