T
Tim Williams
- Jan 1, 1970
- 0
VERY nice logo!Tim said:
Sorry Tim, but neither browser here can pick it up.
Sorry Tim, but neither browser here can pick it up.
legg said:Sorry Tim, but neither browser here can pick it up.
How was it published?
??????? It works perfectly here(firefox/foxit reader on XP-SP3.).Sorry Tim, but neither browser here can pick it up.
How was it published?
RL
Maybe your computer/ISP can't talk to my server? Or maybe it was clogged
or down at the moment?
It's just a file on the http directory, nothing special, no scripts or
anything.
Tim
Maybe your computer/ISP can't talk to my server? Or maybe it was clogged
or down at the moment?
It's just a file on the http directory, nothing special, no scripts or
anything.
He used "Latex with hyperref package" according to the documentFirefox/Linux chugged away for awhile and then gave me a blank screen.
Opera/Linux retrieved the paper normally. Apparently your server
doesn't like Firefox, at least under Linux.
Nicely done paper, BTW. What did you use to typeset it?
John
That paper bears all the hallmarks of having been done in LaTeX.Firefox/Linux chugged away for awhile and then gave me a blank screen.
Opera/Linux retrieved the paper normally. Apparently your server
doesn't like Firefox, at least under Linux.
Nicely done paper, BTW. What did you use to typeset it?
Apparently your server doesn't
like Firefox, at least under Linux.
legg said:I finally just saved the blank page that was displayed in IE6, as
'Core_Loss.pdf'. This proved to be a working pdf document.
Fiddling with preferences in Seamonkey/firefox, I pointed the
application helper for Acrobat(application/pdf) to adobe reader7. This
allowed the pdf to open in the browser.
Never had either issue previously. Curious.
That paper bears all the hallmarks of having been done in LaTeX.
Tim -- how in heck did you get the text to wrap around your figures?
I want that!
brent said:I suspect seven transistor labs does not really exist as any kind of
legal entity with property to protect, and since STL is you
( completely , I assume) I would make it explicit that the author
assumes no liability. After all, I suspect that protecting the author
is more important than protecting a shell entity that has no value.
(Of course I could be wrong on this...just food for thought If you
want the mumbo jumbo in there)
legg said:I (sort of) groaned when you adopted MMKS as units. Perhaps you didn't
realize that KW/m^3 of common core loss graphs can be read directly as
mW/cm^3? Dropped, missing or mistranslated orders of magnitude can
play havoc.
Perhaps you should have titled this article
Core_Loss_of_Powdered_Toroidal_Inductors? There's nothing wrong with
adding information to titles, if it cuts down on the end user's time.
<snip>A power loss budget, in preliminary design, is dependant on some major
indices; surface area (or thermal impedance to ambient); maximum
permitted spot temperature; and the total power loss.
At the limit temperatures, the core loss characteristic
become increasingly positive in temperature coefficient, encouraging
thermal runaway. It is seldom characterized or specified for powdered
cores, probably for this exact reason; and that it would be extremely
discouraging to sales.
For ferrites, manufacturers are more
forthcoming, as the PTC of loss only starts to kick in above a certain
grade-type-specific value, in a bathtub curve. By selecting the
material grade, one also selects the intended end-use environment.
Core loss is an AC phenomena. The Bmax in your formula should probably
be deltaB/2, as this corresponds to the peak flux density for
sinusoidal data presented by the manufacturer.
This correspondence
isn't guaranteed, as core loss is noted to vary, the farther it strays
from the zero-flux crossing point, into regions approaching
saturation. Very poor data from the industry or academia on this.
As the tolerance of core loss can vary by a wide factor within a
single material grade, it is unwise to use it as a main limiting
factor in any design. Copper losses, which predictably increase
logarithmically with increased current, will produce a much more
reliable indication of end-use, load-limiting factors in the
production of spot temperature limits.
In isolating transformer applications, the amount of copper fill
obtained can dominate calculations of through-put power capability for
any core shape and topology. Philips/Ferroxcube and Siemens both
publish guidelines illustrating expected power transfer through
characteristic power core shapes, when used in specific topologies,
over the frequency range of specific material grades.
Spehro Pefhany said:He used "Latex with hyperref package" according to the document
properties, and pdfTex-1.40.12 to produce the PDF 1.5 file.
What's that Type-3 Adobe font "F58" for? Oh, I see, the bullets on
pages 6 and 8.
I have "pdfTeX, Version 3.1415926-2.3-1.40.12 (MiKTeX 2.9) (preloaded
format=pdflatex 2012.12.9)" in the log file, to be painfully specific.
LaTeX has quite a learning curve, but it can't be beaten for geeky, mathy
publication-grade material, and it's damn powerful.
Dunno, it's just \item to me
Say, any idea how much the fonts account for in the file size?
About 340k should be due to images, give or take compression methods.
Geez, more than 30% of the total is just the choke picture... can hardly
bear myself to dent its pixel count though, it's a very shiny picture...
go ahead... zoom in on it...
Tim
Spehro Pefhany said:930,528 img-0064.png ^ ^ ^
This adds up to 1.3M vs. the actual 546k of your file, and doesn't
include the actual text of your paper, but it doesn't look like the
fonts account for much of the size. Maybe 10-20%.