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Registered Member #146
Joined: Sun Feb 12 2006, 04:21AM
Location: Austin Tx
Posts: 1055
Steve , I sincerely apologise if you feel I have been in anyway attacking you personally, that was not my intention at all.
Nah, i never take forums too seriously, or most things in life for that matter. I dont feel that you are attacking me, just that you arent understanding what ive been trying to explain, hence, i give up :P.
Perhaps its best if we leave it at that for now, and when I have the results I will post them.
Yes, do that! If all goes well, you will learn something, though i will not, because ive already done exactly these tests. Believe me, i understand the need for proof, especially if you have some doubts with completely understanding every detail. I use real world tests all the time to prove myself right or wrong.
Registered Member #1024
Joined: Sun Sept 23 2007, 10:56AM
Location: Northern NSW, Australia
Posts: 95
Well, I have , after mucho building and testing, definitively and categorically proven mysealf WRONG .
It is without doubt better to start and end the pulse train with both the high and low side drivers of the GDT at the same level. That is , most convieniently, by using the enable pin .
I will save myself the embarrasment of describing the waveforms in too much detail when not doing the above , suffice to say, as most of you probably already know, its ugly.
I have hence modified my circuit , so as to still provide a presettable maximum duration boot pulse, but to have both GDT drivers begin , and end the burst ontime in the same state ( by using the enable pins ).
Nothing new to most of you , but I now not just believe , but know it to be true!
Anyway , I will update this post with my new schematic and layout when I've finnished them.
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New driver design ideas
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