[TCML] DRSSTC weird waveform behavior

[Justin B <boshjack@xxxxxxxxxxx>]

Hello, Recently been working on my DRSSTC seeing what my ZCS is.  Came to find I have large voltage spikes, and my switching is late.

After getting tips and suggestions from Kizmo, I have moved the gate resistor from 5ohms to 10ohms, which killed my spike down a little.  Then also he told me Steve had a similar issue, and fixed it with a 20 ohm resistor. seen here (http://www.stevehv.4hv.org/DRSSTC2/waveforms/badoutput.JPG)  So im sure the simple fix to my overshoot is to do the same. Add resistors.  But what I want to know, What the heck is the deal with the high squiggles on the Output voltage? If i adjust the duty cycle to ONE more cycle, it mirrors over the horizontal.  1 more cycle, mirrors again.

So, Here are my waveforms.

With 5.1 ohm resistor on the gates
http://i.imgur.com/pUJvR.jpg
http://i.imgur.com/GlcAU.jpg

with 10ohm resistor on the gates
http://i.imgur.com/ZrfeX.jpg
http://i.imgur.com/JMKIF.jpg

But what the heck is this??
http://i.imgur.com/nfcC7.jpg

Any help is wonderful, Thanks =)
--Justin B
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