I need a power source 48vcc

[Dani]

Somebody can post schemes and a components list to make a power source
48vcc?
Thanks

 

[Boris Mohar]

On Fri, 18 Mar 2005 01:00:02 GMT, "Dani" <tonilandero@terra.es> wrote:

Somebody can post schemes and a components list to make a power source
48vcc?
Thanks

Four car batteries in series would do nicely. Correct fuse is strongly
recommended.

--

Boris Mohar

 

[Bob]

"Boris Mohar" <borism_-void-_@sympatico.ca> wrote in message
news:cpfk319vq4fdl1ckgjod391hu7poe5dd9e@4ax.com...

On Fri, 18 Mar 2005 01:00:02 GMT, "Dani" <tonilandero@terra.es> wrote:

Somebody can post schemes and a components list to make a power source
48vcc?
Thanks


Four car batteries in series would do nicely. Correct fuse is strongly
recommended.

--

Boris Mohar

That's a really dumb idea. He should use five 9V's and two AAA cells. This
way he doesn't have to buy four cars.

Bob

 

[Luhan Monat]

Dani wrote:

Somebody can post schemes and a components list to make a power source
48vcc?
Thanks

96 raw potatoes with zinc and copper electodes connected in series.

--
Luhan Monat (luhanis 'at' yahoo 'dot' com)
"The future is not what it used to be..."
http://members.cox.net/berniekm

 

[martin griffith]

On Thu, 17 Mar 2005 20:16:20 -0800, in sci.electronics.design Luhan
Monat <x@y.z> wrote:

Dani wrote:
Somebody can post schemes and a components list to make a power source
48vcc?
Thanks



96 raw potatoes with zinc and copper electodes connected in series.

and which end is positive?
I cant be bothered to get the meter out



martin


Opinions are like assholes -- everyone has one

 

[Dave Boland]

Dani wrote:

Somebody can post schemes and a components list to make a power source
48vcc?
Thanks

Dani,

I don't know what your current and power needs are, or what
your budget and time span are, so my suggestion is that you
buy one rather than getting the transformer, designing the
rectification and filtering stages, etc. You can do a
search for "48 volt power supply" and one of the responses
will be: http://www.powerstream.com/48-volt.htm

Dave,

 

[Frithiof Andreas Jensen]

"Boris Mohar" <borism_-void-_@sympatico.ca> wrote in message
news:cpfk319vq4fdl1ckgjod391hu7poe5dd9e@4ax.com...

On Fri, 18 Mar 2005 01:00:02 GMT, "Dani" <tonilandero@terra.es> wrote:

Somebody can post schemes and a components list to make a power source
48vcc?
Thanks


Four car batteries in series would do nicely. Correct fuse is strongly
recommended.

Why restrict the amount of pretty Colours that can be made with such a
supply and a simple slipped screwdriver or finger ring?

 

[Ken Smith]

In article <zLr_d.13479$cN6.11112@newsread1.news.pas.earthlink.net>,
Bob <nimby1_notspamm_@earthlink.net> wrote:

"Boris Mohar" <borism_-void-_@sympatico.ca> wrote in message
news:cpfk319vq4fdl1ckgjod391hu7poe5dd9e@4ax.com...
[...]
Four car batteries in series would do nicely. Correct fuse is strongly
recommended.
[....]
That's a really dumb idea. He should use five 9V's and two AAA cells. This
way he doesn't have to buy four cars.

You are both wrong. In one case he has to buy 4 things. In the other he
has to by 5 things when the battery in just one railway shunt engine would
do the job.

--
--
kensmith@rahul.net forging knowledge

 

[Luhan Monat]

Dani wrote:

Somebody can post schemes and a components list to make a power source
48vcc?
Thanks

Try the local phone company.

--
Luhan Monat (luhanis 'at' yahoo 'dot' com)
"The future is not what it used to be..."
http://members.cox.net/berniekm

 

[Fred Bartoli]

"Pooh Bear" <rabbitsfriendsandrelations@hotmail.com> a écrit dans le message
de news:423A3047.1412731F@hotmail.com...

Dani wrote:

Somebody can post schemes and a components list to make a power source
48vcc?
Thanks

You don't know how to do it yourself ? Whilst people here are helpful it
isn't a place to just ask for someone to do the work for you !

You haven't even mentioned amperage ( 10mA or 100A ! ) or ripple and
noise.

In case the OP doesn't mind a bit of ripple/noise and a moderate impedance,
he can try the phone line.

Well, I guess I have to add the big for him, now.


--
Thanks,
Fred.

 

[John Fields]

On Fri, 18 Mar 2005 01:00:02 GMT, "Dani" <tonilandero@terra.es> wrote:

Somebody can post schemes and a components list to make a power source
48vcc?

---
If you have a treadmill with an AC motor, why not substitute a DC
motor for it and use it like a generator?

Or maybe hook a turbine driving an alternator/generator to your kitche
sink?

Or build yourself a REALLY BIG squirrel exercise wheel?...

--
John Fields

 

[martin griffith]

On Fri, 18 Mar 2005 13:56:14 -0600, in sci.electronics.design John
Fields <jfields@austininstruments.com> wrote:

On Fri, 18 Mar 2005 01:00:02 GMT, "Dani" <tonilandero@terra.es> wrote:

Somebody can post schemes and a components list to make a power source
48vcc?

---
If you have a treadmill with an AC motor, why not substitute a DC
motor for it and use it like a generator?

Or maybe hook a turbine driving an alternator/generator to your kitche
sink?

Or build yourself a REALLY BIG squirrel exercise wheel?...

or a Van de Graff generator, and a step down thingummy?

martin


Opinions are like assholes -- everyone has one

 

[Fred Bartoli]

"John Fields" <jfields@austininstruments.com> a écrit dans le message de
news8cm311mhqpdps200jmnc140ckjnaf5j6q@4ax.com...

On Fri, 18 Mar 2005 01:00:02 GMT, "Dani" <tonilandero@terra.es> wrote:

Somebody can post schemes and a components list to make a power source
48vcc?

---
If you have a treadmill with an AC motor, why not substitute a DC
motor for it and use it like a generator?

Or maybe hook a turbine driving an alternator/generator to your kitche
sink?

Or build yourself a REALLY BIG squirrel exercise wheel?...

And you get the voltage regulation by tempting it more or less with your
REALLY BIG NUTS?


--
Thanks,
Fred.

 

[Ken Taylor]

"Pooh Bear" <rabbitsfriendsandrelations@hotmail.com> wrote in message
news:423C108B.BF1EBFFD@hotmail.com...

Frithiof Andreas Jensen wrote:

"Boris Mohar" <borism_-void-_@sympatico.ca> wrote in message
news:cpfk319vq4fdl1ckgjod391hu7poe5dd9e@4ax.com...
On Fri, 18 Mar 2005 01:00:02 GMT, "Dani" <tonilandero@terra.es> wrote:

Somebody can post schemes and a components list to make a power
source
48vcc?
Thanks


Four car batteries in series would do nicely. Correct fuse is
strongly
recommended.

Why restrict the amount of pretty Colours that can be made with such a
supply and a simple slipped screwdriver or finger ring?

Oh my ! You just reminded me of something.

On one of my trips to Bombay or Mumbai as is now preferred, we were being
driven back to our hotel but the traffic was moving slowly and there
seemed
to be some kind of fireworks display up ahead.

When we got to the location we saw that a power pole with a down-drop had
somehow been damaged and the armoured cable was snaking about - making
intermittent connections and creating a fabulous light show in the
process.
Mainly a kind of eery purple light actually. *Most* impressive !


Graham


I spent several years on a Pacific island. One stormy night I got a call

from a concerned villager that "blue light was coming out of the ground".
Needless to say inspection (from a safe distance) ascertained that the
underground 11kV supply cable had been pierced by the coral and an
*extremely* impressive light show was under way!

Ken

 

[Frithiof Andreas Jensen]

"Pooh Bear" <rabbitsfriendsandrelations@hotmail.com> wrote in message
news:423C108B.BF1EBFFD@hotmail.com...

somehow been damaged and the armoured cable was snaking about -

In "them parts" often these events are caused by improvised Do-It-Yourself
connections to *Live* wires running past the houses; sometimes the mess of
non-standard wiring looks like real wines overgrowing the utility poles.

It is amazing the there, apparantly, are no major fires and electrocutions.