09-22-2024, 06:57 PM
Hi folks,
Here is another way to go about it. I threw this experiment together quickly. I am currently lacking power resistors and undamaged oscilloscope probes so I'm not making any claims here but for those of you who actually do experiment, this looks quite promising to me. If we drive our transformer with a load that slightly overpowers it, (17 watts on a 15 watt transformer, in the example shown here) then the pulse from the capacitor might drive the transformer into the negative resistance portion of the VA curve as described in Alexey's PDF. The good thing about doing it this way is that we are adding energy to the load to achieve the saturation, rather than taking it away. It would make a good experiment for those of you skilled in power electronics who already have HV high power H bridge IGBT switch modules at your disposal. Remember that if replacing the spark gap with a solid state switch, the switch should probably conduct in both directions to mimic the behaviour of the spark gap. Please understand that I am sharing my ideas and do not have a working device. Please use great caution with HV caps and spark gap!
Walking the walk...
https://youtu.be/5X4uhCV1TVg
Kind regards, Sandy
Here is another way to go about it. I threw this experiment together quickly. I am currently lacking power resistors and undamaged oscilloscope probes so I'm not making any claims here but for those of you who actually do experiment, this looks quite promising to me. If we drive our transformer with a load that slightly overpowers it, (17 watts on a 15 watt transformer, in the example shown here) then the pulse from the capacitor might drive the transformer into the negative resistance portion of the VA curve as described in Alexey's PDF. The good thing about doing it this way is that we are adding energy to the load to achieve the saturation, rather than taking it away. It would make a good experiment for those of you skilled in power electronics who already have HV high power H bridge IGBT switch modules at your disposal. Remember that if replacing the spark gap with a solid state switch, the switch should probably conduct in both directions to mimic the behaviour of the spark gap. Please understand that I am sharing my ideas and do not have a working device. Please use great caution with HV caps and spark gap!
Walking the walk...
https://youtu.be/5X4uhCV1TVg
Kind regards, Sandy