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Dual Output Wall Wart?

J

Jim Thompson

Jan 1, 1970
0
Does anyone make a wall wart with dual outputs, say ±12V or ±15V?

...Jim Thompson
 
L

Luhan

Jan 1, 1970
0
Jim said:
Does anyone make a wall wart with dual outputs, say ±12V or ±15V?

Hate to state the obvious here, but when I need both + and -, I just
buy one with AC out and take it from there....

Luhan
 
R

Rich Grise

Jan 1, 1970
0
Hate to state the obvious here, but when I need both + and -, I just
buy one with AC out and take it from there....

Or, if one is in a hurry, one could use a pair of warts. :)

Cheers!
Rich
 
J

John Larkin

Jan 1, 1970
0
Does anyone make a wall wart with dual outputs, say ±12V or ±15V?

...Jim Thompson


We use one that's +5 and +-12, Phihong or something. Actually, it's
not literally a wall wart but a plastic brick with a regular IEC line
cord, like a laptop power supply.

John
 
R

Rich Grise

Jan 1, 1970
0

I'd be really leery of a mini-DIN for output - I bought an ethernet
switch off ebay once, and it came with a "cord wart" with at least
two outputs, and a mini-DIN connector on a cable that was stiffer
than a VGA cable. It was almost impossible to get it plugged in
right, and some of the pins had already be bent. The switch finally
died, but I still have the supply:
input: 100~240VAC 50~60Hz, max 1.0A
output: +5VDC,.7a; +3.3VDC,3.0A

I suppose it'll sit in my junque box until I start making stuff
with 3.3V logic. :)

Or, if somebody wants to drive to Whittier to pick it up, I have a
bunch of other junque I haven't used in a year or more, like computer
fans from dead computers and stepper motors from dead printers and stuff.

Cheers!
Rich

Cheers!
Rich
 
J

Jim Thompson

Jan 1, 1970
0
Hate to state the obvious here, but when I need both + and -, I just
buy one with AC out and take it from there....

Luhan

I just want plug-n-play ;-)

...Jim Thompson
 
M

Michael A. Terrell

Jan 1, 1970
0
Jim said:
Does anyone make a wall wart with dual outputs, say ±12V or ±15V?

One off, or for production?

--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
S

Steve Noll

Jan 1, 1970
0
Does anyone make a wall wart with dual outputs, say ±12V or ±15V?

...Jim Thompson

Elpac. Digi-Key, Mouser, Allied, and Newark carry them. Have been
using their linear wall-warts for 15 years for noise-sensitive analog
test equipment. Extremely reliable, but not cheap. The +/- 15V model
(WM071-1950-D5) can be hard to find. I use their WM113S the most. Its
output cable is shielded and connects to the power input ground pin,
very rare in a wall wart. They make some really tiny 5V switcher wall
warts too.

Steve Noll | The Used Hi Tech Equipment Dealer Directory:
| http://www.big-list.com
| Peltier Information Directory:
| http://www.peltier-info.com
 
D

Don Lancaster

Jan 1, 1970
0
Steve said:
Elpac. Digi-Key, Mouser, Allied, and Newark carry them. Have been
using their linear wall-warts for 15 years for noise-sensitive analog
test equipment. Extremely reliable, but not cheap. The +/- 15V model
(WM071-1950-D5) can be hard to find. I use their WM113S the most. Its
output cable is shielded and connects to the power input ground pin,
very rare in a wall wart. They make some really tiny 5V switcher wall
warts too.

Steve Noll | The Used Hi Tech Equipment Dealer Directory:
| http://www.big-list.com
| Peltier Information Directory:
| http://www.peltier-info.com
zillions of wall warts at surplus traders.

--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss: http://www.tinaja.com/whtnu.xml email: [email protected]

Please visit my GURU's LAIR web site at http://www.tinaja.com
 
J

Jim Thompson

Jan 1, 1970
0
Elpac. Digi-Key, Mouser, Allied, and Newark carry them. Have been
using their linear wall-warts for 15 years for noise-sensitive analog
test equipment. Extremely reliable, but not cheap. The +/- 15V model
(WM071-1950-D5) can be hard to find. I use their WM113S the most. Its
output cable is shielded and connects to the power input ground pin,
very rare in a wall wart. They make some really tiny 5V switcher wall
warts too.

Steve Noll | The Used Hi Tech Equipment Dealer Directory:
| http://www.big-list.com
| Peltier Information Directory:
| http://www.peltier-info.com

Thanks, Steve! That looks perfect!

...Jim Thompson
 
S

Spokesman

Jan 1, 1970
0
Rich Grise said:
http://www.mouser.com/index.cfm?han...uctid=330206&e_categoryid=102&e_pcodeid=68001

I'd be really leery of a mini-DIN for output - I bought an ethernet
switch off ebay once, and it came with a "cord wart" with at least
two outputs, and a mini-DIN connector on a cable that was stiffer
than a VGA cable. It was almost impossible to get it plugged in
right, and some of the pins had already be bent. The switch finally
died, but I still have the supply:
input: 100~240VAC 50~60Hz, max 1.0A
output: +5VDC,.7a; +3.3VDC,3.0A




I recently purchased an external USB harddrive with the same type of
connector and I have also had to straighten pins. This was +5 and +12.
 
W

Winfield Hill

Jan 1, 1970
0
Steve Noll wrote...
Elpac. Digi-Key, Mouser, Allied, and Newark carry them.
Have been using their linear wall-warts for 15 years for
noise-sensitive analog test equipment. Extremely reliable,
but not cheap. The +/- 15V model (WM071-1950-D5) can be
hard to find. I use their WM113S the most. Its output
cable is shielded and connects to the power input ground
pin, very rare in a wall wart. They make some really tiny
5V switcher wall warts too.

We use triple-output wall-worts by Ault: +/-12V and +5V,
with a defacto-standard 5-pin circular DIN connector.

Actually, quite a few companies make multiple-output
wall-wort and cable-wort power supplies using this DIN
connector. Looking at a male plug, starting with pin 1
to the right: pins 1 and 2 are ground (pin 2 is in the
middle on top), and pin 3 on the left is +5. This is
the setup for the +5-only supplies. Pins 4 and 5 are
nestled to the right and left of pin 2, are - and +12V.

Although this is a common setup, but nobody offers
+/-15 instead of +/-12 in the triple-supply modules,
that I've been able to find.

A common complaint with the 5-pin DIN connector on these
wall-warts is intermittent connections as they age, or
even when new, which we traced to inferior female jacks
(one can push the split-receptacle back together, ugh!).
But the 5-pin DIN is a VERY widely-used connector, e.g.
millions for the original IBM PC keyboards, and hundred
of thousands for MIDI signaling, etc., and hopefully with
a little perseverance you can find higher-quality jacks.

Ahem, just be sure not to settle for the cheap ones!
Here are a few 5-pin DIN socket parts to consider.

manuf, part number distributor, p/n comments
------------------ ---------------- -------------
Amphenol T3359-009 Newark 16F6818 panel, circular, solder
Preh * 71206-051 Farnell 308950 panel, flange, solder
Preh 71251-050 Farnell 437396 square flange, PCB 90
Preh 71252-050 Farnell 437359 panel, flange, PCB
Deltron 650-0500 Farnell 148500 panel, circular
" Newark 69K6137
Deltron 651-0500 Farnell 1193830 same, but black
" Newark 69K6145
Deltron 630-0500 Farnell 147699 panel, flange
" Newark 69K6126
CUI, Inc SDF-50J Digi-Key CP-7050 square flange, PCB 90
CUI SD-50SN Digi-Key CP-1250 panel, flange, solder

# Some of these sockets offer a locking feature, which must
be matched with standard locking plugs.

* web-site statement: "The most popular standard for small
circular connectors for the last half of the 20th century
has been the been the German DIN standard. Created by
Preh and the Duetch Industrie Norm [DIN] in the 1950's,
the circular DIN connector spec has been accepted world-
wide as the connector of choice for industries ranging
from computers to medical electronics to pro audio."
http://www.preh-keytec.com/rw_nlmm/main.asp?WebID=keytec_e&PageID=403

The DIN standards are 41524, 45322, 45326, 45327 and 45329.
Does anybody know a website where these can be obtained?
 
J

Joerg

Jan 1, 1970
0
Hello Win,
The DIN standards are 41524, 45322, 45326, 45327 and 45329.
Does anybody know a website where these can be obtained?

Typically sold at rather stiff prices with strong copyright notices
everywhere. I had to pay about $200 for my copy of IEC601-1. Ouch. What
made me really mad is that they could have done it for half if some
<censored...> wouldn't have insisted on bilingual print English/French.

Anyhow, since you are truly an MIT insider you should check your
university library. I would be surprised if they didn't have the DIN
standards or couldn't get them at least via library exchange. Much of
these have been renamed and might now be an IEC standard (possibly with
a different number suffix).
 
J

Jim Thompson

Jan 1, 1970
0
Steve Noll wrote...

We use triple-output wall-worts by Ault: +/-12V and +5V,
with a defacto-standard 5-pin circular DIN connector.
[snip]

I believe those are all switchers rather than linear regulators.

Also "wort"?

Bwahahahahaha!

...Jim Thompson
 
J

joseph2k

Jan 1, 1970
0
Jim said:
I just want plug-n-play ;-)

...Jim Thompson

Then a group of wall warts on a power strip, one switch convenience.
 
A

allana

Jan 1, 1970
0
the exist a surplus of computer power supplies which will have
+5v..+12v ..computer shows or flea markets always have them..large and
small profiles
 
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