Transformer, Power, Special, Isolation, How will it work?

[Stanley Dornfeld]

Hi Gang..

I want to power a rotating load. The load has many components. The input
voltage is 220AC. The eventual load will be 5, 12,and 20 volts DC for
computer type components. One rotation takes about two minutes. So! Here
is my idea.

For sake of discussion, the concept is:

An inside winding, which goes to the load and will rotate with the system,
might look like a cylindrical winding around a paper roll. The outside
winding will be fixed, and not rotate. It will also be cylindrical and fit
closely over the inside winding. An iron core may be used for efficiency.

The reason I'm looking at this is I want to get away from Slip Rings. The
transformer won't give off sparks and the interference associated with them.

Am I way off the cliff here, or does this concept make any sense?

Thank you for any suggestions.

Best regards,

Stan-

 

[Stanley Dornfeld]

The paper roll thingy is just for a visual idea. I know it will have to be
much huskier to work. *G

Thanks!

Stan-

"Stanley Dornfeld" <stanley@dornfeld.com> wrote in message
news:10dubkipkek0fe@corp.supernews.com...

Hi Gang..

I want to power a rotating load. The load has many components. The input
voltage is 220AC. The eventual load will be 5, 12,and 20 volts DC for
computer type components. One rotation takes about two minutes. So! Here
is my idea.

For sake of discussion, the concept is:

An inside winding, which goes to the load and will rotate with the system,
might look like a cylindrical winding around a paper roll. The outside
winding will be fixed, and not rotate. It will also be cylindrical and
fit
closely over the inside winding. An iron core may be used for efficiency.

The reason I'm looking at this is I want to get away from Slip Rings. The
transformer won't give off sparks and the interference associated with
them.

Am I way off the cliff here, or does this concept make any sense?

Thank you for any suggestions.

Best regards,

Stan-

 

[Kevin R]

On Sun, 27 Jun 2004 13:33:53 -0700, "Stanley Dornfeld" <stanley@dornfeld.com> wrote:

Hi Gang..

I want to power a rotating load. The load has many components. The input
voltage is 220AC. The eventual load will be 5, 12,and 20 volts DC for
computer type components. One rotation takes about two minutes. So! Here
is my idea.

For sake of discussion, the concept is:

An inside winding, which goes to the load and will rotate with the system,
might look like a cylindrical winding around a paper roll. The outside
winding will be fixed, and not rotate. It will also be cylindrical and fit
closely over the inside winding. An iron core may be used for efficiency.

The reason I'm looking at this is I want to get away from Slip Rings. The
transformer won't give off sparks and the interference associated with them.

Am I way off the cliff here, or does this concept make any sense?

Thank you for any suggestions.

Best regards,

Stan-

In principle, it will work, it is how signals are transferred from roating heads in a
video recorder.
However, I suspect that it may not be terribly efficient.
Losses in the transformer will be turned in to heat which you will have to get rid
of somehow and I am thinking that there will be quite a lot of loss.

How about a laptop plugged in to an LCD monitor and power the whole thing of a
car battery running through an inverter. Stick the whole gubbins on the turntable
and just recharge the car battery over night.

 

[Stanley Dornfeld]

Hi Kevin..

Thanks for your reply. You actually validated my thought. That will give
me some added strength to push forward some more. *Smile

Your suggestion is appreciated. In use though the battery would run dry
before it was time.

Good idea other wise.

Best regards,

Stan-

"Kevin R" <me@privacy.net> wrote in message
news:68iud0domacc9grq1od42cui0ilpvp3gpu@4ax.com...

On Sun, 27 Jun 2004 13:33:53 -0700, "Stanley Dornfeld"
stanley@dornfeld.com> wrote:

Hi Gang..

I want to power a rotating load. The load has many components. The
input
voltage is 220AC. The eventual load will be 5, 12,and 20 volts DC for
computer type components. One rotation takes about two minutes. So!
Here
is my idea.

For sake of discussion, the concept is:

An inside winding, which goes to the load and will rotate with the
system,
might look like a cylindrical winding around a paper roll. The outside
winding will be fixed, and not rotate. It will also be cylindrical and
fit
closely over the inside winding. An iron core may be used for efficiency.

The reason I'm looking at this is I want to get away from Slip Rings.
The
transformer won't give off sparks and the interference associated with
them.

Am I way off the cliff here, or does this concept make any sense?

Thank you for any suggestions.

Best regards,

Stan-


In principle, it will work, it is how signals are transferred from roating
heads in a
video recorder.
However, I suspect that it may not be terribly efficient.
Losses in the transformer will be turned in to heat which you will have to
get rid
of somehow and I am thinking that there will be quite a lot of loss.

How about a laptop plugged in to an LCD monitor and power the whole thing
of a
car battery running through an inverter. Stick the whole gubbins on the
turntable
and just recharge the car battery over night.