Hi Spec,
Thanks for the reply.
Actually I have already built that system you mentioned. Its really not a big deal. See the image below.
I used a simple flyback to generate 10kV@10kHz then this voltage is multiplied by a simple 4 stage Cockroft-Walton. The 40kV voltage has been switched by a variable spark gap and a Blumlein line pulse forming network did the rest of the job.
The final purpose of this project is to generate ns pulse dielectric barrier discharge plasma in atmospheric pressure, so I have build this system as a "proof of concept" and it works well. As you can see the size of the system is huge and the sound of a discharging spark gap is like a machine gun. This is a good (but very dangerous) toy to playing with, but can not be applied in a practical system.
What I would need now is some kind of compact and semiconductor based solution of the ns HV pulse generation.
Regarding your question, I am not sure, but lets say max. 10ns as a rise and fall time of a single pulse.
View attachment 103981
Regards,
G.