Driver to drive?

[Fred Bartoli]

"Spehro Pefhany" <speffSNIP@interlogDOTyou.knowwhat> a écrit dans le message
de news:tjjdn0tuobc5jg3qleon4nhkgmjqt0sfb5@4ax.com...

On Wed, 20 Oct 2004 18:02:42 +0200, the renowned "Frank Bemelman"
f.bemelmanx@xs4all.invalid.nl> wrote:

Good point, about the bouncing. This question was also posted on a
Dutch newsgroup, by someone else, and another poster suggested to use
a sot-23 pic, like the PIC10F200 (+ regulator).

Nice idea to use the PIC as a pulse generator. BTW, do you have a good
design for a reliable pulse generator to reset the PIC? ;-)

See my reply above

The opto seems a bit too much though...


--
Thanks,
Fred.

 

[Clarence]

"John Fields" <jfields@austininstruments.com> wrote in message
news:qoscn05b6hbsphgof7mp0827itii4g98jb@4ax.com...

On Wed, 20 Oct 2004 00:51:54 GMT, "Clarence" <no@No.com> wrote:

Wow. I never though walking the dog could be so exhausting!

---
Sigh... Might as well try to teach a pig to sing.

I know, are your singing yet?

I didn't think so!

 

[Clarence]

"John Fields" <jfields@austininstruments.com> wrote in message
news:31tcn05li8ivijjme37t1gsjqlm83oer84@4ax.com...

On Wed, 20 Oct 2004 01:00:40 GMT, "Clarence" <no@No.com> wrote:
---
That's not the point. he asked for help, not for URLs. Any idiot (as
you've proven, many times) can look around and find something vaguely
related to the subject at hand and paste the URL where he found it. A
real no-brainer, and nothing like asking for spec's and then figuring
out how to put something together, from scratch, which will provide an
adequate answer to the poster's question.

I pointed him at a possible single packaged Power supply to meet his needs.

I also posted a schematic of a circuit for him, for comment. Your interference
has prevented him from replying.

---
Of course you don't. Greedy, money-grubbing worms like you _can't_
because you equate pecuniary gain with happiness and you think that if
you do _anything_ for free you've been taken advantage of.
---

The spell it PROFESSIONAL!
But you wouldn't know anything about THAT would you?

---
Now cool off, you started this and I do not care to keep trying to calm you
down.
---
I'll do what I damn well please, and if you find that the headwind is
too strong for you, then I suggest you save yourself some grief and
learn how to tack.
--

Spoken like a real nut!
I can Tack and Reach. Any point of sail.

I consider you to be a minor disturbance and of no value whatever.

 

[Paul Hovnanian P.E.]

Product developer wrote:

olivierdominguez@free.fr (Olive) wrote in message news:<f1b21c8c.0410151037.1b95600d@posting.google.com>...
I'm French electronic student, I need some informations about airborne
communications and data management solutions to airlines.
I need also technicals documentations aviation electronics systems,
electromagnetic compatibility, transmissions capacities.
Please send me your contacts or some internet links, technical Books,
etc....



Thank you.

Hey Oliver,

The heart of most systems is the Phased Array Antenna which allows the
reception of the Satellite Carrier while under way. Unlike a fixed
earth station dish the phased array is a dome with several antenna
arrays distributed to provide an ideal coverage area for the size of
the overall dome. As the aircraft's orientation changes in relation to
the satellite, ideally there are always enough phased antenna elements
to detect the carrier.

In earlier designs a tracking dish inside a dome would move according
to sensor readings on the aircraft that indicated its position,
heading, and Yaw, pitch and roll relative to the target satellite. The
robotics required to do all the servo work was quite an effort and
required a lot of servicing.

Right. Phased array antennas also have the advantage of being flat and
easy to mount. Particularly if aerodynamics are a concern.

A while back, some engineers at Boeing patented some low cost techniques
for implementing phased array antennas. Prior to these developments,
phased arrays were quite expensive devices, requiring high power active
microwave electronics for each emmiter/receiver. The price of these
assemblies placed them out of the reach of reasonable commercial
applications. Try searching patent databases for recent (past 10 years)
developments for phased arrays.

The Soviets also had some interesting phased array designs, based on
passive magnetic phase shifters for each element, rather than
solid-state electronics. After the USSR folded, much of the info. on
this was declassified and some might be lurking out there within the
reach of Google.

One interesting failure of phased array antennas for internet/TV
reception has been in adapting the new low cost units for yachts.
Apparently, the selling point of having a practically invisible flat
antenna instead of those big, ugly domes conflicts with the domes' use
as status symbols. The more big domes and radars the boat has, the
wealthier the owner. (So, put a phased array antenna under a fake dome.
;-)


--
Paul Hovnanian mailtoaul@Hovnanian.com
------------------------------------------------------------------
Applying information technology is simply finding the right wrench
to pound in the correct screw.

 

[Clarence]

"Bob Stephens" <stephensyomamadigital@earthlink.net> wrote in message
news:1gwa3hseykppw$.rylhdfpbpfoz.dlg@40tude.net...

And of course:

etc.
lack of Googling
including top posting,
1 to start a flame war about every arcane netiquette violation

AND
1 to try to assert himself as an Alpha Male, and order others to comply with
his twisted sense of reality.

There are three of these on this group!

The want to be top DOG, and someone else must always clean up after them.

 

[j.b. miller]

I've got a big box FULL of wirewrapping supplies.Boards,sockets,wire,2
guns,etc....

Located near Toronto,Ontario if you're nearby...

Jay

 

[Joerg]

Hi Klaus,

Yes - they have been launched in the TSSOP footprint (5x6mm).


Right, and they are a bear to solder in a prototype setting. Once in

there I treat TSSOP chips like uncooked eggs so I never ever destroy one
and have to change it out. At least you can still buy CD chips in SO for
a prototype but most of my stuff goes directly to layout. When you work
with newer ICs such as the LM3478 there is only the MSOP which is the
same pain, about 1/2mm spacing.

Sorry to say my favorite low price part, the CD4093 is only available from
TI in this package. The other manufactors still use SO14. I asked them and
they said the die was too large to fit inside the TSSOP. Maybe TI has some
"shrinking" equipment they havent


Or did they pour it into a new process? That would be a sure sign for

product longevity but they'll never tell I guess.

I still prefer the 40106 because I get six Schmitts instead of four.
Greed? Cheapskate? Maybe...

Regards, Joerg

http://www.analogconsultants.com

 

[Joerg]

Hi Chris,

Is there some reason you can't just bung a schottky in there ?


Yes, but that's one more part taking up real estate.

Regards, Joerg

http://www.analogconsultants.com

 

[Joerg]

Hi Jim,

Just use a gold-doped device, such as 2N2369, for the same effect.


That's one of my old-time favorites, too. Unfortunately it seems to be

on its way out and what's left is very expensive, around 30 cents or so.
That would blow many of my design out of the water. There are a few
others but rather wimpy ones, not so suitable for switching purposes.

Regards, Joerg

http://www.analogconsultants.com

 

[Joerg]

Hi Jonathan,

Digikey has it and it comes in a TO-18 can!!! A BJT after my hobbyist heart, I
can see!


A good transistor indeed. But be careful with anything other than hobby

designs. Even Digikey has gently tapped the last order bell on the 2N2369A.

Regards, Joerg

http://www.analogconsultants.com

 

[Clarence]

"John Fields" <jfields@austininstruments.com> wrote in message
news:6sucn0dcmacmum8ttir5d2m2okmrq4ts5q@4ax.com...

On Wed, 20 Oct 2004 01:04:55 GMT, "Clarence" <no@No.com> wrote:


"John Fields" <jfields@austininstruments.com> wrote in message
news:gbdbn0pthrcfn35csurdfsr9os2dt480id@4ax.com...
On Wed, 20 Oct 2004 00:09:36 GMT, "Clarence" <no@No.com> wrote:

As usual had nothing of value to contribute!

---
Same old "John Fields", huh, Clarence?

You started it, you can just live with it!

Go get your nap.... You need it pretty bad.

---
Getting winded, huh?

No, there's storm here! I'm on neighborhood watch!

 

[Winfield Hill]

John Larkin wrote...

MHW1244, 24v, 24 dB, 5-200 MHz, +50 dbmv.

Pretty nice, I had mistakenly thought that Motorola (oops,
Freescale) had discontinued the whole line. The 25-piece
minimum at $22.16 slows me down a little bit, especially
since it's not clear it can push out more than 1/4 to 1/2
watt, or so... Any idea?


--
Thanks,
- Win

(email: use hill_at_rowland-dotties-org for now)

 

[Joerg]

Hi Chris,

Of the five that blamed the administration there will be at least one who will start a mega thread about the impact that the failure of this device will have on the upcoming election.

Regards, Joerg

http://www.analogconsultants.com

 

[Tim Wescott]

Joerg wrote:

Hi Jonathan,

Digikey has it and it comes in a TO-18 can!!! A BJT after my hobbyist
heart, I
can see!


A good transistor indeed. But be careful with anything other than hobby
designs. Even Digikey has gently tapped the last order bell on the 2N2369A.

Regards, Joerg

http://www.analogconsultants.com

On still lists various surface-mount versions -- is it just the 2N
version, or the die?

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

 

[legg]

On 20 Oct 2004 14:09:58 -0700, sina1358@yahoo.com (Sinatra Benigni)
wrote:

Hi
Does anybody have any datasheets or documentations about each of the folowing
SI-Thyristors?

RT201
RT103N

Thanks
Sinatra Benigni

supposedly mfrd by NGK Insulators - rough data in article:

http://hotta.es.titech.ac.jp/~ehotta/pdf/PPPS2001/SI-Thy.pdf

but no data from NGK

http://www.ngk.co.jp/english/products/electron/ele_part/index.html

SIT is generally considered to be the designation of the Static
Induction Transistor. MOS-controlled thyristors are more commonly
refered to as MCT.

RL

 

[Clarence]

"Clarence" <no@No.com> wrote in message
news:jkAdd.16605$nj.5794@newssvr13.news.prodigy.com...

"Hassan" <hasan5012@yahoo.com> wrote in message
news:26acb996.0410200833.762aa90f@posting.google.com...
"Clarence" <no@No.com> wrote in message
news:<Ujidd.16248$nj.15005@newssvr13.news.prodigy.com>...
Hassan wrote:
Hello;
I want to design a switching power supply with:
Vin=24 Vdc and Vo=15V @ 7A

Did you get my schematic?
Is it along the lines of what you wanted?

No; I could find the link to a power supply. If you have schematic,
please give me its URL or any other way that I can access it.
Thank you
Hassan

It is in a binary group.
alt.binaries.schematics.electronic

Title is
24 volt in, 15 volt @ 7 amperes out. As requested.

Pretty much self explanatory.

By the way. You can download "SwitcherCAD" free from Linear's web site.

http://www.linear.com/index.jsp

I am in no way associated with this company.

 

[ChrisGibboGibson]

"Clarence" wrote:

[snip]

By the way. You can download "SwitcherCAD" free from Linear's web site.

http://www.linear.com/index.jsp

I am in no way associated with this company.

And if, by some strange freak event, you became so, they would, in all
probability, deny it.

Gibbo

 

[Rich Grise]

On Wed, 20 Oct 2004 21:04:44 +0000, Clarence wrote:

"Bob Stephens" <stephensyomamadigital@earthlink.net> wrote in message
news:1gwa3hseykppw$.rylhdfpbpfoz.dlg@40tude.net...

And of course:

etc.
lack of Googling
including top posting,
1 to start a flame war about every arcane netiquette violation

AND
1 to try to assert himself as an Alpha Male, and order others to comply with
his twisted sense of reality.

There are three of these on this group!

The want to be top DOG, and someone else must always clean up after them.

Four.

 

[Clarence]

"Rich Grise" <rich@example.net> wrote in message
newsan.2004.10.21.00.12.50.21378@example.net...

On Wed, 20 Oct 2004 21:04:44 +0000, Clarence wrote:


"Bob Stephens" <stephensyomamadigital@earthlink.net> wrote in message
news:1gwa3hseykppw$.rylhdfpbpfoz.dlg@40tude.net...

And of course:

etc.
lack of Googling
including top posting,
1 to start a flame war about every arcane netiquette violation

AND
1 to try to assert himself as an Alpha Male, and order others to comply
with
his twisted sense of reality.

There are three of these on this group!

The want to be top DOG, and someone else must always clean up after them.

Four.

Gee fred, I didn't know you wanted to be included!
I wasn't aware you felt left out.
Okay, if you say so. FOUR!

 

[John Fields]

On Wed, 20 Oct 2004 20:55:56 GMT, "Clarence" <no@No.com> wrote:

"John Fields" <jfields@austininstruments.com> wrote in message
news:31tcn05li8ivijjme37t1gsjqlm83oer84@4ax.com...
On Wed, 20 Oct 2004 01:00:40 GMT, "Clarence" <no@No.com> wrote:
---
That's not the point. he asked for help, not for URLs. Any idiot (as
you've proven, many times) can look around and find something vaguely
related to the subject at hand and paste the URL where he found it. A
real no-brainer, and nothing like asking for spec's and then figuring
out how to put something together, from scratch, which will provide an
adequate answer to the poster's question.

I pointed him at a possible single packaged Power supply to meet his needs.

---
That's not what he asked for, but of course you know better than he
does what he wants.
---

I also posted a schematic of a circuit for him, for comment. Your interference
has prevented him from replying.

---
Really? In what way? Did that little mind of yours forget to tell
him where it was because it was all filled up with you trying to
figure out the simple logic I hit you with?
---

---
Of course you don't. Greedy, money-grubbing worms like you _can't_
because you equate pecuniary gain with happiness and you think that if
you do _anything_ for free you've been taken advantage of.
---

The spell it PROFESSIONAL!
But you wouldn't know anything about THAT would you?

---
LOL!!!
Not only are you a fucking idiot, you're a fucking idiot as well!
And you say you're a teacher? God help those poor folks who you
manage to fool into thinking you know what you're talking about.
---

---
Now cool off, you started this and I do not care to keep trying to calm you
down.
---
I'll do what I damn well please, and if you find that the headwind is
too strong for you, then I suggest you save yourself some grief and
learn how to tack.
--

Spoken like a real nut!
I can Tack and Reach. Any point of sail.

I consider you to be a minor disturbance and of no value whatever.

---
Trite, banal crap.

Again.
--
John Fields