48v to +5 and +/- 12

T

Tone

Guest
I am looking for either an 'off the shelf' or schematic (or point me to
where I may find one) for a psu. 48v input, output +5v @1A, + / - 12v @
100mA.

A few years ago, the market was a wash with block converters, but they seem
to have all but vanished

Can anybody help please.
 
On Nov 19, 11:48 am, "Tone" <all.junkm...@btinternet.com> wrote:
I am looking for either an 'off the shelf' or schematic (or point me to
where I may find one) for a psu. 48v input, output +5v @1A,  + / - 12v @
100mA.
Click to expand...
That's an easy one; telephone companies use millions of
those. I presume you mean 48V DC for the input?
Something like PTK15-Q48-D12-T , available at DigiKey.

Instead of 'psu' look for DC/DC converters, triple output.
 
On Fri, 19 Nov 2010 19:48:00 -0000, "Tone"
<all.junkmail@btinternet.com> wrote:

I am looking for either an 'off the shelf' or schematic (or point me to
where I may find one) for a psu. 48v input, output +5v @1A, + / - 12v @
100mA.

A few years ago, the market was a wash with block converters, but they seem
to have all but vanished

Can anybody help please.
Click to expand...
---
P/N DGP20E48T5/12 from:

http://power_solutions.power-one.com/resources/products/datasheet/dgp20t.pdf

---
JF
 
On Fri, 19 Nov 2010 12:13:29 -0800 (PST), whit3rd <whit3rd@gmail.com>
wrote:

On Nov 19, 11:48 am, "Tone" <all.junkm...@btinternet.com> wrote:
I am looking for either an 'off the shelf' or schematic (or point me to
where I may find one) for a psu. 48v input, output +5v @1A,  + / - 12v @
100mA.

That's an easy one; telephone companies use millions of
those. I presume you mean 48V DC for the input?
Something like PTK15-Q48-D12-T , available at DigiKey.
Click to expand...
---
Unobtainium at DigiKey, plus no 5V out.

---
JF
 
On Fri, 19 Nov 2010 17:21:09 -0600, John Fields
<jfields@austininstruments.com> wrote:

On Fri, 19 Nov 2010 12:13:29 -0800 (PST), whit3rd <whit3rd@gmail.com
wrote:

On Nov 19, 11:48 am, "Tone" <all.junkm...@btinternet.com> wrote:
I am looking for either an 'off the shelf' or schematic (or point me to
where I may find one) for a psu. 48v input, output +5v @1A,  + / - 12v @
100mA.

That's an easy one; telephone companies use millions of
those. I presume you mean 48V DC for the input?
Something like PTK15-Q48-D12-T , available at DigiKey.

---
Unobtainium at DigiKey, plus no 5V out.

---
They _do_ have this, though, at $93.72, qty 1 ...
Click to expand...

http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=811-1826-5-ND

---
JF
 
On Fri, 19 Nov 2010 19:48:00 -0000, "Tone"
<all.junkmail@btinternet.com> wrote:

I am looking for either an 'off the shelf' or schematic (or point me to
where I may find one) for a psu. 48v input, output +5v @1A, + / - 12v @
100mA.

A few years ago, the market was a wash with block converters, but they seem
to have all but vanished

Can anybody help please.
Click to expand...
+5 @ 4A
+15 @ 330ma
-15 @ 330ma

$8.95

http://www.mpja.com/prodinfo.asp?number=17412+PS

Jphn
 
On Fri, 19 Nov 2010 17:40:03 -0600, John Fields
<jfields@austininstruments.com> wrote:

On Fri, 19 Nov 2010 17:21:09 -0600, John Fields
jfields@austininstruments.com> wrote:

On Fri, 19 Nov 2010 12:13:29 -0800 (PST), whit3rd <whit3rd@gmail.com
wrote:

On Nov 19, 11:48 am, "Tone" <all.junkm...@btinternet.com> wrote:
I am looking for either an 'off the shelf' or schematic (or point me to
where I may find one) for a psu. 48v input, output +5v @1A,  + / - 12v @
100mA.

That's an easy one; telephone companies use millions of
those. I presume you mean 48V DC for the input?
Something like PTK15-Q48-D12-T , available at DigiKey.

---
Unobtainium at DigiKey, plus no 5V out.

---
They _do_ have this, though, at $93.72, qty 1 ...

http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=811-1826-5-ND

---
Oops...
Click to expand...

That's for 9 - 18V in.

They don't have a 48V in, 3 output one, but from the data sheet at:

http://www.cd4power.com/data/power/twr8-11w.pdf

it looks like the TWR-5/1000-12/210-D48A will work.

---
JF
 
Tone:

I am looking for either an 'off the shelf' or schematic (or point me to
where I may find one) for a psu. 48v input, output +5v @1A, + / - 12v @
100mA.
Click to expand...
The output should be isolated from the input?
 
"F. Bertolazzi" <TOGLIeset@MAIUSCOLEtdd.it> wrote in message
news:1gexclk4y7b8n.alqv224ydy1l.dlg@40tude.net...
Tone:

I am looking for either an 'off the shelf' or schematic (or point me to
where I may find one) for a psu. 48v input, output +5v @1A, + / - 12v @
100mA.

The output should be isolated from the input?
Click to expand...
Yes.


Thanks for everybodys help. The Power-One item looks to fit the bill
 
You must log in or register to reply here.

Welcome to EDABoard.com

Sponsor

Back
Top