sci.electronics.design Google Group

Re: Non-linear functions ...

pnaonstpealm...@yahoo.com (Jan Panteltje) — Wed, 25 Nov 2009 00:14:08 UT

On a sunny day (Tue, 24 Nov 2009 15:45:11 -0700) it happened "Paul Hovnanian
P.E." <p...@hovnanian.com> wrote in <4B0C61F7.769D4...@hovnanian.c om>:
.-----. .----. .-----.
An other advantage is that he wants a digital display,
the micro can drive a LCD direcly, no need for a DAC(or PWM).

Re: The Master Reading a Book

to-email-use-the-envelope-i...@my-web-site.com (Jim Thompson) — Wed, 25 Nov 2009 00:13:35 UT

On Tue, 24 Nov 2009 16:00:26 -0800, "Joel Koltner"
I'm doing process corner simulations for a chip due to release to
layout on December 1.
Not much to see, looking at me.
If you have GoToMeeting, and wish to pay, you could see my other
screens ;-)

...Jim Thompson

Re: Non-linear functions ...

jon_slaugh...@hotmail.com (Jon Slaughter) — Wed, 25 Nov 2009 00:05:34 UT

I don't know but if I had to do it with analog I might simply do averaging.
This will produce a spline approximation:
for example:
75 3.27
100 3.75
if your input was 80 then your output is (3.75 - 3.27)/(100-75)*(80 - 75) +
3.27. i.e., fitting a line between the two points.
now, you implement the analog electronics to compute that equation then use

Re: Microwage RF detector

a7yvm109gf...@netzero.com — Wed, 25 Nov 2009 00:04:11 UT

Why not ask the intended receiver's RX power level?
Or a bolometer?

Re: The Master Reading a Book

to-email-use-the-envelope-i...@my-web-site.com (Jim Thompson) — Wed, 25 Nov 2009 00:03:36 UT

On Tue, 24 Nov 2009 15:30:36 -0700, "Paul Hovnanian P.E."
Think what you want.... the publisher has just knocked out an
additional 1 Million copies.
From what I hear the publisher had already reached profitability in
the first release... sold out before availability ;-)

...Jim Thompson

Re: Ping Bil Slowman; The global warming hoax reveiled

dagmargoodb...@yahoo.com — Wed, 25 Nov 2009 00:03:28 UT

OMG, that's rich. Try searching the HARRY_READ_ME.TXT file
[link]
for "cloud." (Clouds' influence on insolation is ~10^2 greater than
the AGW hypothesized from CO2.)
A few years ago I downloaded and read some of the FORTRAN code for one
of the models.

Re: What is awesome in German?

all...@tele.ntnu.no (Rune Allnor) — Wed, 25 Nov 2009 00:03:10 UT

'Verteilerkopf' = 'distributor head' is obvious. Can't
figure out 'Zund' without a dictionary?
Rune

Re: Experiment in Sea Level Rise

hal-use...@ip-64-139-1-69.sjc.megapath.net (Hal Murray) — Wed, 25 Nov 2009 00:01:59 UT

In article <i3cog5t67qbc0ognbgo7ug3mmhs5a j9...@4ax.com>,
It's also a reasonably large land mass (even after you
correct for the distortion in typical Mercator projections)
and most of it is covered with very thick ice.
USGS says:
[link]
Melting of the current Greenland ice sheet would result in a sea-level

Re: The Master Reading a Book

zapwiredashgro...@yahoo.com (Joel Koltner) — Wed, 25 Nov 2009 00:00:26 UT

Now that John Fields has posted his video of the 5uA movement meter, perhaps
it's time to get a video of Jim reading his book. :-)
Or working SPICE. That'd be cooler, actually.

Re: Non-linear functions ...

f...@frank-buss.de (Frank Buss) — Tue, 24 Nov 2009 23:52:21 UT

But the requirements were lower limit and upper limit for the voltage,
which would require more parts.
BTW: The new ATtiny10, mentioned in comp.arch.embedded, is interesting for
such applications, because it has some interesting PWM modes and other
timer goodies, which makes it even more trivial to solve such problems.

OT: looking for a store...

a7yvm109gf...@netzero.com — Tue, 24 Nov 2009 23:51:55 UT

or rather a specific website. It's a Chinese place that makes hobby
PCB but also had weird and wonderful parts ...
This was a few years ago and I just can't remember the name.
Anyone have any hints?
TIA

Re: Experiment in Sea Level Rise

to-email-use-the-envelope-i...@my-web-site.com (Jim Thompson) — Tue, 24 Nov 2009 23:49:15 UT

On Tue, 24 Nov 2009 23:37:31 +0100, "TheM" <DontNeedS...@test.com>
wrote:
They used to herd CATTLE there.
Leftist weenies choose to ignore that.
Fox is the only network presently covering the climate change hoax
exposure. Wonder if Obama and the Forty Thugs will rush out and
arrest all us trouble-makers ?:-)

Re: Non-linear functions ...

a7yvm109gf...@netzero.com — Tue, 24 Nov 2009 23:46:38 UT

Comedy gold right there!

Re: Non-linear functions ...

p...@hovnanian.com (Paul Hovnanian P.E.) — Tue, 24 Nov 2009 22:45:11 UT

That's the solution to life, the universe and everything, if you have
the correct coefficient.
One more advantage to this approach is that one can add an SPI/I2C
output and use lots of stuff other then DVMs downstream.

Re: Non-linear functions ...

pnaonstpealm...@yahoo.com (Jan Panteltje) — Tue, 24 Nov 2009 23:34:32 UT

On a sunny day (Wed, 25 Nov 2009 00:06:16 +0100) it happened Frank Buss
<f...@frank-buss.de> wrote in <8ztnmdvdii48.qvbmwoy9mods.... @40tude.net>:
Is not a 74HC4046 a much simpler VCO with a lot bigger range?
hehe