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Re: MMC Question.
Original poster: Vardan <vardan01@xxxxxxxxxxxxxxxxxxxxxxx>
At 11:05 PM 8/8/2006, you wrote:
You are, of course, mathematically correct. I was attempting to come
up with an easy to visualize, intuitive explanation for someone who
is enthusiastic, but to whom the math and theory seem to still be
somewhat of an amorphous cloud. IMO, Ipeak = Vfire / sqrt (Lp/Cp) is
anything but visual or intuitive, but it certainly IS accurate as
long as R ~ 0.
For some strange reason, when I wrote up the Tesla coil formulas thing I used:
Ipeak = Vfire / sqrt (Lp/Cp)
Instead of the more proper form:
Ipeak = Vfire x sqrt (Cp/Lp)
That was corrected a while back:
In the case of the SISG, primary resistance is very important since
we are using giant primary caps, small value primary coils, low voltage etc.
So the equation then becomes:
Iprimary = Vfire x SQRT(Cp/Lp) x EXP(-R x t / (2 x Lp) x SIN(t / SQRT(Lp x Cp))
That equation is used to find primary resistance buy comparing to
digital scope captures too.
I suppose one could take the differential and find the first zero
slope point for a closed form for peak current with
resistance.... But that would make my brain hurt ;-))
I am sure you wanted to know all that :o)))