magnetic field

[Meat Plow]

On Wed, 09 Apr 2008 01:29:01 +1200, Terry Given wrote:

Meat Plow wrote:
On Mon, 07 Apr 2008 16:48:04 +1000, Phil Allison wrote:


Game over


Keep this shit out of SER.

few things are more amusing than the deluded individuals who think they
can stop posts to umoderated newsgroups.

One thing I can think of that is much more amusing is gullible fuckheads
like you who eagerly dance at the snap of my fingers.

 

[Terry Given]

Dave Plowman (News) wrote:

In article <1pc7sp.r8v.17.2@news.alt.net>,
Meat Plow <meat@petitmorte.net> wrote:

On Mon, 07 Apr 2008 16:48:04 +1000, Phil Allison wrote:


Game over


Keep this shit out of SER.


It's a complement to be called a nutter by the Allison chappie as he
obviously considers he's the only sane person in the world...

in his world, by his definition, he probably is.

he'd make a great study for a psych major.

Cheers
Terry

 

[JosephKK]

On Tue, 08 Apr 2008 23:01:32 +0100, "Dave Plowman (News)"
<dave@davenoise.co.uk> wrote:

In article <1pc7sp.r8v.17.2@news.alt.net>,
Meat Plow <meat@petitmorte.net> wrote:
On Mon, 07 Apr 2008 16:48:04 +1000, Phil Allison wrote:

Game over

Keep this shit out of SER.

It's a complement to be called a nutter by the Allison chappie as he
obviously considers he's the only sane person in the world...

Not really he spews it around liberally.

 

[JeffM]

bernado wrote:
Dear Spammer,
http://groups.google.com/groups/search?enc_author=tK-ODxQAAACiDGvzuTdAZkHOkBLoXLyLrEa8CY-6crfBSd9PEmfT0A&scoring=d

You have obviously mistaken this for the biz.* hierarchy.
This is an excellent way to DEGRADE your company's image.

**How NOT to advertise on Usenet** by Joel K. Furr
http://www.google.com/search?q=cache:W6rxVAYEMg8J:www.use-net.ch/advo_engl.html+rude.to.advertise.*.*+*-*-*-*-*-*-the-word-forsale-or-marketplace-in-their-names+preserve.*.culture.of.open.discussion+reads.*.advertisement+pays+*.most.pervasive.form.*.*.*.*-*+How-*-to-Advertise-on-Usenet+biz+hated+rude+lose-*-account#biz

 

[John Fields]

On Fri, 25 Apr 2008 22:37:37 -0700 (PDT), bernado
<werner-grosse@web.de> wrote:

On 25 Apr., 00:56, JeffM <jef...@email.com> wrote:
bernado wrote:
[Product announcement SPAM]

Dear Spammer,http://groups.google.com/groups/search?enc_author=tK-ODxQAAACiDGvzuTd...

You have obviously mistaken this for the biz.* hierarchy.
This is an excellent way to DEGRADE your company's image.

**How NOT to advertise on Usenet** by Joel K. Furrhttp://www.google.com/search?q=cache:W6rxVAYEMg8J:www.use-net.ch/advo...

----------------------------------------------------------------------------------------------------------------------------

It’s obviously that someone REALLY NOT understand technical contents
and significant changes of physical facts and results of different
postings.

---
It's obvious that someone is trying to use the non-commercial
newsgroups on USENET to get some free advertising and got his back up
because someone complained.

Tough shit, ya goddam SPAMmer.
---

Thanks for Million posting readers in Asia who understand that subject
much better and are great full for such news.

---
What news? That you're an annoying ass?
---

Have a great day.

---
Stick it up your ass, Bernardo.

JF

 

[MooseFET]

On May 1, 10:18 pm, "Paul E. Schoen" <pst...@smart.net> wrote:

"N_Cook" <dive...@tcp.co.uk> wrote in message

news:fvd4qh$fpp$1@registered.motzarella.org...

Scenario 12V,20A wind generator to charge a bank of 6x 12V batteries to
run
a 72V motor.
What would happen if you ran a 12V to 110V sine or quasi-sine invertor ,
through a high power rectifier to the bank of 72V batteries ?
What other considerations , protections etc , should it work ?

You should be able to build six isolated DC-DC converters with a wide input
range to accommodate the voltage variations of the generator, and also
individually provide the optimum charge for each battery. Such a charger
(about 25 watts) can be made using a PIC or one of many battery charger
ICs, and you could add a visual "state of charge" LED indicator to each
battery to detect problems.

No, the PIC is the wrong part for this. You want an LM555 :>


A two LED or two color LED indicator is a better way to go. You have
more than two states to indicate:

Blink green I don't see a battery
Green The battery is fully charged
Blink yellow The battery is very low
Yellow The battery is being charged
RED Big trouble I've stopped charging this battery

Paul

 

[gearhead]

On May 1, 12:14 pm, "N_Cook" <dive...@tcp.co.uk> wrote:

Scenario 12V,20A wind generator to charge a bank of 6x 12V batteries to run
a 72V motor.
What would happen if you ran a 12V to 110V sine or quasi-sine invertor ,
through a high power rectifier to the bank of 72V batteries ?
What other considerations , protections etc , should it work ?

What batteries, what wind turbine?
Same goes for the inverter.

 

[MooseFET]

On May 2, 11:13 am, "Paul E. Schoen" <pst...@smart.net> wrote:
[....]

What's wrong with a PIC?

Real men use LM555s.

They now have the PIC12HV615 and the PIC16HV616
that have built-in voltage regulator,

You hook a zener to pin 5 of the LM555

[....]

The difficult part is the isolation. But you can make a very simple DC-DC
converter on the 12 VDC generator side,

This is a wasteful way to go. It is better to send the information
about the charge state back to the input side and only have one DC-DC.

Since you like the PIC so much. Put one on the load side to encode
the information for sending back digitally.

to produce an unregulated raw 12-20
VDC nominal supply on the battery side. Then it is easy to make an
efficient current regulated, voltage limited charging supply similar to the
PWM LED drivers that are being designed and built by many companies (Zetex,
Linear, TI, etc.). The PIC can be programmed for various cell chemistries
and charging profiles, and also compensate for temperature.

I have also seen a PIC circuit for Lithium cells that can be chained to
others in a series battery pack, and it will communicate with the others to
provide an optimal charge for all, and shut down if there is danger of
current reversal.

Paul

 

[John Larkin]

On Sat, 10 May 2008 16:58:14 +0200, "mtech"
<marin.zorica(nospam)@zd.t-com.hr> wrote:

Hello!

I would need an PWM controller for a 24V 50W brushed DC motor. I made one
like on this link, but it's working very bad, it work good when is alive but
MOSFET's gone dead quick.

http://www.ozitronics.com/docs/k166.pdf

That's a stunningly bad circuit, but then most circuits are stunningly
bad.

These work nicely:

http://www.national.com/mpf/LM/LMD18400.html

but I'd add some clamp schottkies for luck.


John

 

[legg]

On Sat, 10 May 2008 18:15:24 +0200, "mtech"
<marin.zorica(nospam)@zd.t-com.hr> wrote:

I allready did place shotky on every mosfet, still burning, also I did try
with some other gate resistors and so....problem is in dead time then....but
this design end then.

Um, this crcuit PWMs at 270Hz.

10K gate drive resistors.10mA gate drive currents. Give me a break.

As long as there's no actual shoot-through or gate overstress failure,
and as long as the 324 can actually shut the Pchannel parts off,
theres no reason why the circuit shouldn't work below 20V. It
obviously does, to a certain extent.

Some kind of ripple current, though.

If all you're doing is introducing better drivers, you could probably
retain the electronics to generate the control signals, providing that
they're troubleshot before applying juice.

RL

 

[Eeyore]

legg wrote:

On Sat, 10 May 2008 18:15:24 +0200, "mtech"
marin.zorica(nospam)@zd.t-com.hr> wrote:

I allready did place shotky on every mosfet, still burning, also I did try
with some other gate resistors and so....problem is in dead time then....but
this design end then.

Um, this crcuit PWMs at 270Hz.

10K gate drive resistors.10mA gate drive currents. Give me a break.

As long as there's no actual shoot-through or gate overstress failure,
and as long as the 324 can actually shut the Pchannel parts off,
theres no reason why the circuit shouldn't work below 20V. It
obviously does, to a certain extent.

Some kind of ripple current, though.

If all you're doing is introducing better drivers, you could probably
retain the electronics to generate the control signals, providing that
they're troubleshot before applying juice.

I was just mulling over the possibility of substituting a better quad op-amp when
I noticed that Q3 and Q5 will never be properly fully turned on since there's no
high side drive. Heck, Vcc for the LM324 ins't even as high as V+ due to D3 and
R15.

It's a truly very poor design.

Graham

 

[Terry Given]

John Larkin wrote:

On Sat, 10 May 2008 16:58:14 +0200, "mtech"
marin.zorica(nospam)@zd.t-com.hr> wrote:


Hello!

I would need an PWM controller for a 24V 50W brushed DC motor. I made one
like on this link, but it's working very bad, it work good when is alive but
MOSFET's gone dead quick.

http://www.ozitronics.com/docs/k166.pdf



That's a stunningly bad circuit, but then most circuits are stunningly
bad.

that pig again.

there was a detailed discussion about that circuit a year or two ago.
None of the skilled SED regulars had anything nice to say about it.

Dont bother repairing it, it will never work properly.

These work nicely:

http://www.national.com/mpf/LM/LMD18400.html

but I'd add some clamp schottkies for luck.


John

Cheers
Terry

 

Like Rocky said to Bullwinkle as he tried to pull a rabbit out of the
top hat, "That never works." Oh, and it IS illegal.

 

[Sheik Yerbhouti]

Snapper <snapper1@y7mail.com.invalid> writes:

I have had my second thumbdrive fail. It's a 1 gig Imation. It started with
files in folders becoming corrupted. ie. one folder had a lot of stuff in it and
these weird files appearing. and Explorer cannot delete them either.

So I formatted the drive and copied the data back onto it from backups. Then
other problems appeared, all file related.

So I must assume that the unit's stuffed.

The likes of Harvey Norman have barrells of thumbdrives of various sizes and
brands in the bargain bins as you walk in the door. Just wondering if any brands
stick out whether for good reasons or for bad.

Stick with SanDisk. I use an 8 GB one without a problem. The shit ones
break, had very bad device driver support, and will make Windows crash and
burn without warning.

--
Sheik Yerbhouti - the popular ambassador to Australia of the Arab Royal States
Anonymous I welcome you loving emails. Come and view my free image galleries at:
http://www.southwestslutbags.com/gallery2/main.php?g2_itemId=2941
http://www.technotranceravesex.net/gallery2/main.php?g2_itemId=20555

 

[kreed]

On Jul 5, 8:16 pm, Sheik Yerbhouti <s...@lios.apana.org.au> wrote:

Snapper <snapp...@y7mail.com.invalid> writes:
I have had my second thumbdrive fail. It's a 1 gig Imation. It started with
files in folders becoming corrupted. ie. one folder had a lot of stuff in it and
these weird files appearing. and Explorer cannot delete them either.
So I formatted the drive and copied the data back onto it from backups. Then
other problems appeared, all file related.
So I must assume that the unit's stuffed.
The likes of Harvey Norman have barrells of thumbdrives of various sizes and
brands in the bargain bins as you walk in the door. Just wondering if any brands
stick out whether for good reasons or for bad.

Stick with SanDisk. I use an 8 GB one without a problem. The shit ones
break, had very bad device driver support, and will make Windows crash and
burn without warning.

--
Sheik Yerbhouti - the popular ambassador to Australia of the Arab Royal States
Anonymous I welcome you loving emails. Come and view my free image galleries at:http://www.southwestslutbags.com/gallery2/main.php?g2_itemId=2941http://www.technotranceravesex.net/gallery2/main.php?g2_itemId=20555

HAVE used a couple of kingston 4gig thumbdrives since january and had
no problems with them.

 

[Phred]

In article <g4nhlh$2j3$7@yoda.apana.org.au>, Sheik Yerbhouti <sy@lios.apana.org.au> wrote:

Snapper <snapper1@y7mail.com.invalid> writes:

I have had my second thumbdrive fail. It's a 1 gig Imation. It started with
files in folders becoming corrupted. ie. one folder had a lot of stuff in it and
these weird files appearing. and Explorer cannot delete them either.

I have several Imation thumbdrives in various capacities and have
never had problems with them. However, I had symptoms similar to what
you describe with two Exigo units purchased from CitySoft about 18
months ago. (Probably why CitySoft had them on special at the time.
I suppose I could have fought the good fight and perhaps succeeded in
getting a credit or having them replaced; but it was easier, and in
some ways more satisfying, just to refrain from ever buying from
CitySoft again.)

So I formatted the drive and copied the data back onto it from backups. Then
other problems appeared, all file related.

So I must assume that the unit's stuffed.

The likes of Harvey Norman have barrells of thumbdrives of various sizes and
brands in the bargain bins as you walk in the door. Just wondering if any
brands stick out whether for good reasons or for bad.

Stick with SanDisk. I use an 8 GB one without a problem. The shit ones
break, had very bad device driver support, and will make Windows crash and
burn without warning.

Cheers, Phred.

--
ppnerkDELETE@THISyahoo.com.INVALID

 

[Don McKenzie]

Sheik Yerbhouti wrote:

Stick with SanDisk. I use an 8 GB one without a problem. The shit ones
break, had very bad device driver support, and will make Windows crash and
burn without warning.

yep, the Sand disk units are pretty good. If you happen to get the
Cruzer version with the U3 system and applications, just delete it. They
often have these on special. There is an un-installer on their web page,
or you can reformat, but it is a simple task.

Don...



--
Don McKenzie

Site Map: http://www.dontronics.com/sitemap
E-Mail Contact Page: http://www.dontronics.com/email

Xbee Wireless Modules, and low cost Interface Boards.
http://www.dontronics-shop.com/xbee-boards.html

 

[Bob Parker]

On 6/07/2008 06:44 Don McKenzie wrote:

Sheik Yerbhouti wrote:

Stick with SanDisk. I use an 8 GB one without a problem. The shit ones
break, had very bad device driver support, and will make Windows crash
and
burn without warning.

yep, the Sand disk units are pretty good. If you happen to get the
Cruzer version with the U3 system and applications, just delete it. They
often have these on special. There is an un-installer on their web page,
or you can reformat, but it is a simple task.

Don...

One of my mates got a cheapie USB drive from Jaycar and had a lot of
problems.
A good place for all kinds of flash drives and cards is Cheap Chips
in Canberra (http://www.cheapchips.com.au/).

Bob

 

[spodosaurus]

kreed wrote:

On Jul 5, 8:16 pm, Sheik Yerbhouti <s...@lios.apana.org.au> wrote:
Snapper <snapp...@y7mail.com.invalid> writes:
I have had my second thumbdrive fail. It's a 1 gig Imation. It started with
files in folders becoming corrupted. ie. one folder had a lot of stuff in it and
these weird files appearing. and Explorer cannot delete them either.
So I formatted the drive and copied the data back onto it from backups. Then
other problems appeared, all file related.
So I must assume that the unit's stuffed.
The likes of Harvey Norman have barrells of thumbdrives of various sizes and
brands in the bargain bins as you walk in the door. Just wondering if any brands
stick out whether for good reasons or for bad.
Stick with SanDisk. I use an 8 GB one without a problem. The shit ones
break, had very bad device driver support, and will make Windows crash and
burn without warning.

--
Sheik Yerbhouti - the popular ambassador to Australia of the Arab Royal States
Anonymous I welcome you loving emails. Come and view my free image galleries at:http://www.southwestslutbags.com/gallery2/main.php?g2_itemId=2941http://www.technotranceravesex.net/gallery2/main.php?g2_itemId=20555


HAVE used a couple of kingston 4gig thumbdrives since january and had
no problems with them.

Same here. Do NOT buy Astone drives. Both of the ones I've had (512MB
and 4GB) have failed for no discernable reason, and either Astone or the
distributor did not act well/stuffed around the retailer when the latter
drive was sent back for warranty replacement.

Ari

--
spammage trappage: remove the underscores to reply
Many people around the world are waiting for a marrow transplant. Please
volunteer to be a marrow donor and literally save someone's life:
http://www.abmdr.org.au/
http://www.marrow.org/

 

[R M Patnaik]

On Jul 6, 1:42 am, tgid...@athenet.net wrote:

FYI - TG Ideas LLC has recently launched a new blog "Interfacing with
the Doctor Within" -http://doctor-within.blogspot.com/

There seems to be a "Doctor Within" that takes care of most of the
body functions, with or without our help or the help of a medical
professional.  Sometimes, however, the "Doctor Within" might need help
from the outside to complete the body repairs.  Currently we only
"look in" to fix the health problem by our medical tests, etc. We
don't  “ask” the "Doctor Within" what it needs to fix itself. This new
blog lays the foundation for better accessing and investigating the
"Doctor Within", perhaps by electronic means.

TG Ideas LLC has created this blog to promote the use of science to
record and explore the “intuitive messages” the body, mind, and spirit
are trying to tell us about our health and health of others. Up to
now, we could only say or write these "intuitive messages".
Throughout the world, there is much research being done on "Brain
Computer Interfaces" that show brain or mind activity.  On the other
hand, very little research is being done on to automatically
recording  "intuitive messages". By doing so, we could scientifically
study and improve on this process, and maybe someday, have a device to
"Interface with the Doctor Within".  This concept might just be a
solution to high health care costs.

Please feel free to visit and add your comments, research,
experimentation in this area.

Thanks
Tom - TG Ideas LLC