Lead Acid battery models

[Jim Thompson]

On Mon, 18 Oct 2004 00:04:00 GMT, Ray Anderson
<reanderson@sbcglobal.net> wrote:

Jim Thompson wrote:
[snip]

But it wouldn't surprise me to find that such a model already exists.

...Jim Thompson

Check out the following document:
http://www.scarpaz.com/papers/Low%20Power/00953497.pdf
It contains a VHDL model for a discrete time charge-control battery model.

-Ray Anderson

Thanks, Ray! I'll see if I can convert it to Analog ;-)

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

 

[Clarence]

"Rich Grise" <rich@example.net> wrote in message
newsan.2004.10.19.07.07.15.282570@example.net...

On Tue, 19 Oct 2004 03:10:41 +0000, Mac wrote:

On Mon, 18 Oct 2004 02:15:32 +0000, Clarence wrote:
"Mac" <foo@bar.net> wrote in message
newsan.2004.10.18.00.19.08.847044@bar.net...
On Sun, 17 Oct 2004 21:57:14 +0000, Clarence wrote:

snip

Is English your first language? I noticed that you used "your" where you
should have used "you're" four or five times in the above post.

If English is NOT your first language, then don't worry about it. It
isn't
super important. But if English IS your first language, then please use
the apostrophe where appropriate.

It makes it much easier to read your posts if you use the correct word.

If your an English teacher, thank you.
If not -- Stuff it!

That's not a polite expression. ;-)

Use determines correctness. I use it, it is correct!
That's not my understanding of how grammar works.
End of discussion.

snip

He's a troll. Inconvenience is his lifeblood.
Just ignore him.
Cheers!
Rich

Sorry Rich, I was just responding to a troll..."mac"
Didn't mean to splatter!

 

[Rich Grise]

On Mon, 18 Oct 2004 07:56:22 +0000, Robert Baer wrote:

Clarence wrote:

"ChrisGibboGibson" <chrisgibbogibson@aol.com> wrote in message
news:20041017170747.02596.00002165@mb-m13.aol.com...
Rene Tschaggelar wrote:


ChrisGibboGibson wrote:
Rene Tschaggelar wrote:
ChrisGibboGibson wrote:
Does anyone have models for lead acid batteries?
Either spice or schematic representations.
I've found a few and come up with a few of my own but they are all a
different
model for charge and discharge.
Ideally I'd like one that works under both situations.
What exactly do you wish to simulate beside a voltage source
with series resistor ? A complete physical model ?
Yes. As much as possible. OC voltage dependant upon charge state, internal
R,
counter voltage (surface charge), inductance (yes there is some), internal
self
drain etc.

A spice model is an electrical model and not a physical model
as far as I understood.
A colleague of mine took the pain to do measurements on
batteries. He just measured lead and nicads, but the cycles
and temperature dependencies of charge, resistance and so on.
After that he programmed a controller and is still selling
this to various manufacturers who need a better understanding
of their batteries.
Meaning this sort of knowledge is apparently sellable and
hardly available on a newsgroups for free,


That's an odd argument.

The knowledge to make a bomb (or just about anything else) is sellable but
that's freely available on newsgroups.

Then write and test a model of the target battery and post it.

But the battery is already "shot" (someone hit the target), and it is
leaking (bleeding?) all over...

"There were fifty mounted cannon in the battery,
Thundering, thundering, louder than before!"

Cheers!
Rich

 

[Clarence]

"Mac" <foo@bar.net> wrote in message
newsan.2004.10.20.02.11.45.481738@bar.net...

On Tue, 19 Oct 2004 06:22:54 +0000, Clarence wrote:

Your aware you were not ask, aren't you?

Many people are rude out of ignorance, and are glad to be informed so they
can alter their behavior.

You are now aware.

Others are wilfully rude.

Like those who jump in where they are not needed.

Now that I know which category you belong in, there is no point in my
correcting your grammar.

Never was an excuse for your intruding.