That probably was exactly her point. While good engineers simulate
_critical_ portions of their designs (should such portions exist in that
particular design) , there's no need to simulate the whole schematic.
Moreover, you stated that with experience you learn to recognize which
portions merit
no, or not always, or not anymore ;)
-first of all, the 1% and 5% being tolerances , are usually specified either
at standard temperature (like 25deg C) , or across temperature range. IF the
specs are at 25deg C , they don't imply any kind of temperature performance
. There will be no
I still have memories of some analog switching done with bipolars , only
using reverse saturation (collector reversed with emmitter - picture a npn
with the emmitter tied at a more positive potential than the collector) .
The trick was yielding lower Uce in saturation. Lots of people were quick
, mariusrf said:
I still have memories of some analog switching done with bipolars , only
using reverse saturation (collector reversed with emmitter - picture a
npn
with the emmitter tied at a more positive potential than the collector) .
The trick was yielding lower Uce in saturation. Lots
most of the time the schematic portions which warrant accurate simulations
can be reduced and modelled before running any simulation. For example
reduce differential to single ended stages . Due to lack of accurate
detailed models for specific parts, I just use generic models most of the
time and
to upgrade or not to upgrade, this is the question ;-)
seriously, why should I upgrade? I will consider a next upgrade only when
there is new software to warrant it. Meaning with so many new USEFUL
features that it'll increase my productivity or will make new tasks a lot
more doable . This is
not to forget _reliability_. I want a tool that I don't need to fix all the
time .That costs me more money than anything else . I would be very upset if
my car stalled on a busy highway. I would be upset if my supplier didn't
finish my boards on time. I would be upset if my accountant didn't do
machines. It's only the stupid PowerPCB type
dongle expirations that prevent you from going on year after year.
-Original Message-
From: mariusrf [mailto:[EMAIL PROTECTED]]
Sent: Friday, July 05, 2002 11:32 AM
To: Protel EDA Forum
Subject: Re: [PEDA] OS bugs WAS: Problems
I've seen this too , although in a weird variation. Just some of the letters
would disappear , so the words had holes . I had to change the font type to
make this go away
- Original Message -
From: Brian Guralnick [EMAIL PROTECTED]
To: Protel EDA Forum [EMAIL PROTECTED]
Sent: Thursday,
I'm using 2 17 LCD's at 1280x1024 each, with a dual head card. I wouldn't
go back to a CRT . 17 LCd's can be had for little money now, paid $1000 for
both months ago. All things considered, the 2 lcd's give me more viewing
area for the money, more resolution , take less desk space and are sharper
the only reason for which I'd ever change a screen resolution would be to
_increase_ it. I don't need menus and toolbars to take half of my screen
area at low resolutions. I always run the highest res the screen supports.
Talking of laptops, is anybody running Protel on 1600x1200 resolution
I don't have a real answer here so perhaps it would be wiser to keep quiet
but maybe there's a reason this company is called Enigma ??? ;)
Like in making their specs top secret even for customers?
Best Regards,
Matt Tudor , MSEE
http://www.gigahertzelectronics.com
- Original Message -
probably they don't want regular 99se users to see all dxp problems which
are going to surface . they might assume that most 99se (or older
versions) users are like you and me, busy working, and have no time to
subscribe to a gazillion different lists. Therefore all DXP problems would
become
if you Google rec.video.desktop you will see the vast majority of people
had problems with roxio and switched to ahead nero for cd burning . directcd
and easy cd creator historically had tons of issues with the most diverse pc
configurations .
Matt Tudor , MSEE
HP SCSI scanner cards were notorious for their compatibility problems. And
for the fact that HP was dropping driver support as soon as they could, by
just phasing out the product although the OS versions were still being sold.
I remember a Symbios SCSI card myself which contributed to some white
- Original Message -
From: Tony Karavidas [EMAIL PROTECTED]
To: 'Protel EDA Forum' [EMAIL PROTECTED]
Sent: Saturday, September 07, 2002 1:07 PM
Subject: Re: [PEDA] KLUNK! - Whats wrong with this picture.
Hi Joe,
I looked at the dates because your comment sparked interest. The older
even if some code was the same it doesn't mean the bug fix would be the same
. Sometimes a quick fix is modifying other portions of the software than the
faulty one, maybe even not knowing where the fault is , just patch something
until it works. For example, something hangs, we don't know why,
I've had very good results with www.pcbexpress.com for small quantities or
protos .
They don't charge tooling , also no electrical test for less than 20pcs
protos .
3 days 4 layers no soldermask , ALWAYS (and I mean always) on time with zero
problems.
4 days 4 layers LPI soldermask +silkscreen
some programs give you a choice after installation , in the form of a dialog
box asking you IF you want file type .xxx to be associated with this program
. IF you click yes, then windows will remember that file type as being
associated with the new program, if you click no, that file type will
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