>>2940044
So visualize it. Here's the basic thing. Boost converter with a spark gap that is no more isolated by a series capacitor but now by a switch. Works like a charm when the spark gap is open as it's supposed to.
The lower switch just comes on shortly before the upper goes off and then remains on for 1 half period of the inductor capacitor SRF. As such the lower switch wont see HV only high current.
Now if the gap is shorted the upper switch has no more authority over when HV.
So the lower capacitor is chosen 10x that of the upper. It should divide HV generated by the factor 10. The lower switch will now see the boosted voltage but it wont be high.
Turns out one of the things I had overlooked it it needs considerable idle time. The SRF is now much slower. So when the upper switch comes on again the inductor isn't at I=0 but much higher and things escalate. So wait for one half SRF of the new system.
But there's something else...