http://newlightondarkenergy.blogspot.com/2011/02/59-close-but-no-cigar.htmlIn Rosemary's post #59, after parsing and ignoring all the bullstuff and idiotic statements and teasing, I do find one thing I have to agree with, Poynt. I don't think the body diode is broken. As I said in an earlier post, I was able to get continuous oscillation during the gate low time by adding some inductance in series with the gate and lowering the gate resistance and tinkering with the load inductance. I have to agree with her, though, that the drain voltage (which she keeps wrongly calling the battery voltage) doesn't go below zero by more than a volt or so. This indicates an intact body diode to me.
In general, MOSFET body diodes can hack the same levels of pulsed current that the enhanced D-S channel can hack and even with her now higher battery voltage, I think she's still inside the "safe area" of operation in both directions.
In order to model this oscillation, you must use a genuine PSpice Level III MOSFET model complete with the parasitic capacitances. I used an IRF740, since that's the closest one in my library. I got it to ring like a bell, full time with no decay.
But I have tired of playing Rosemary's teasing game of hide and seek. She seems to want desperately to carry on a dialog, reading our every post and responding almost immediately, but she also seems completely unwilling to show her latest circuit, test lashup, layout and component values. She is enjoying our guessing games immensely and, since she provides no facts, she can always say we are wrong and that we cannot model or replicate her magical circuit.
If Rosemary had any real interest in legitimate analysis or testing or replication, she would stop playing hide and seek and be more open about the particulars of the day. But that has never been her way. Rather she enjoys keeping a shroud of mystery and "dark energy" draped closely around her private fiddlings. It has gotten boring for me at this point.
Read my byline, Rosemary, one more time: REASONABLE CLARITY IS REQUIRED, AT MINIMUM. You are a master of obfuscation, partly out of ignorance of the technology and its terminology and partly out of pure girlish spite.
Forgive my sexist remark, but you are acting like a silly little girl with a silly little secret and loving every minute of it in a spiteful and deceitful emotionally-based teasing way. Scientific investigation in an open "cards on the table face up" forum is the furthest thing from your mind, it's obvious. Your secrecy reminds me of a Bob Dylan lyric: "She tries to hide what she don't know to begin with".
Humbugger
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Topic: The Rosemary Ainslie Circuit (Read 477193 times)
