Re: Flyback transformer design confusion!!

On Wed, 15 Nov 2006 00:04:54 +1300, Terry Given <my_name@xxxxxxxx>
wrote:

Fred Bartoli wrote:
Terry Given a écrit :

Fred Bartoli wrote:

Terry Given a écrit :

lemonjuice wrote:

On Fri, 10 Nov 2006 13:32:13 +1300, Terry Given <my_name@xxxxxxxx>
wrote:

<snipped mixed garbage and good stuff>


FISH = 0.5*2mH*(1A^2 - 0A^2) = 1mJ

now let Imin = 100A, Ipeak = 101A, then according to you,

FISH = 0.5*2mH*(101A^2 - 100A^2) = 201mJ


ROTFLMAO!

next you will be asserting that the change in energy stored in a cap
is 0.5*C*(Vfinish - Vstart)^2 :)

whereas I can confidently state this is not the case; try throwing
constant quanta of energy into a cap, and watch the incremental
voltage get smaller each time.....




<snipped more mixed garbage and good stuff>


LOL.



which ends up as

Pin = (V*D)^2/(2*Lp*Fsmps)


so so?
So do those formulae answer the Op's query. How so? Any average
intelligence engineer could write an entire book on a flyback
transformers(without basic errors) but the current problem is
answering the man's question.


best not to review that sentence given your glaring fundamental error!


Cheers
Terry



enjoyable play, till later if i have time.


lemonjuice


Ha! that explains.
Ask lemonjuice what he thinks about amplifiers noise :-)

see
news:1111167517.373587.131310@xxxxxxxxxxxxxxxxxxxxxxxxxxxx
and following.
Worth its weight in peanuts...


Cheers
Terry


Hi Fred,

how do I follow that link? I could do with a laugh....

honestly, I cant believe how wrong his posts were! I initially assumed
it was a typo - its easy enough to do, hell I've even bolloxed up the
calculation that way myself in the past, but cross-checking
calculations caught it.

But no, he really thinks thats the case.

Cheers
Terry


Hmmm. Doesn't work here either. I don't know why.

This one should get you there.

http://groups.google.fr/groups?lnk=hpsg&hl=fr&q=lemonjuice+bartoli+noise

Start at #33


Yep, that worked, thanks. isnt GG awful though. fairly amusing, and
again a basic misunderstanding. which would be funnier- his flybacks, or
his LNAs?

Cheers
Terry

Oh Oh here cums Bartoli on Givens as they catch fire and in their
incandescency together try to light a flame ... Oh Oh
The "hot spot" of their frenzy is of pseudo intellectual delusions
of grandeur which in my opinion should be crowned with
the formation of the turnon. psyco.design group.

BTW I always thought we should talk electronics here. They are other
hog*** NGs for this stuff.

lemonjuice



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