On Feb 24, 2010, at 7:04 PM, Horace Heffner wrote:
On Feb 24, 2010, at 5:58 PM, OrionWorks - Steven Vincent Johnson
wrote:
From: Horace:
...
The site says "Wooww, the power at the OUTPUT is greatly increased
without significant change at the DC input.... ", yet there is no
effort made to measure input power, only current.
The above should say RMS current and RMS voltage, which is not
necessarily the same thing as power.
It would make more
sense to get the I and V traces for the input coil.
It pretty obvious how the thing works. The torus field, which
remains inside the torus, deflects the permanent magnet field away
from the torus, and thus the permanent magnet's field oscillates,
cutting back and forth across the secondary coil windings and
generating power there.
Can you clarify something for me, Horace. The conjecture that the
field
oscillates, as you state, cutting back and forth across the
secondary coil
windings... is intriguing, particularly since you seem to be
saying the
field is dynamically oscillating even though there are no moving
parts. In
layman's terms - what does that mean, particularly energy-wise. My
prosaic
thinking patterns keep wanting to envision MOVING magnets passing
across
coils of wire that in turn generate electricity. But nothing seems
to be
physically moving in this configuration. I'm confused! /:-\
I haven't been following any of this so I should have kept quiet.
Sorry if I duplicate what has been said.
Also, I should have answered this more thoroughly, sorry.
Transformer parts don't move, but they still get energy transferred
from a primary to a secondary. They can be viewed as creating
magnetic field line loops that cut through the secondary coils and
then retreat, cutting the coil again. These field lines can be
visualized as moving through the center of the transformer core -
even though it has a low mu, in order to form the flux loop that
goes through the core. Their density in the hole of the core is
low so they have to move faster when traversing the hole in the core.
It appears the primary core in the video is small compared to the
magnets. This means there is magnetic flux that extends out beyond
the core and circles back to the south end of the permanent magnet
stack, i.e. that does not go through the core. When the current is
high in the primary coil, then only one "return leg" through the
primary torus core is available, thus even more flux is diverted
out into the space around the primary. To the degree the primary
current plus permanent B field saturates the core then even more
flux is diverted out into the nearby space. The nearby space is
occupied by the primary.
.
.
The last sentence above should read: "The nearby space is occupied by
the secondary."
.
.
As the primary current oscillates, the B field that projects into
the secondary coil grows large to the side of the primary where the
primary flux opposes it, and diminishes where the primary flux
reinforces it, but then increases on that side if saturation occurs.
I just posted a drawing, Fig. 3, in a separate email that shows how
the "ejected" flux cuts through the secondary coil. The
alternating current in the primary ejects one side of the flux and
then the other, cutting the secondary coils in the process.
It would be interesting to know how much power is being drawn by
the LEDs.
Best regards,
Horace Heffner
http://www.mtaonline.net/~hheffner/
Best regards,
Horace Heffner
http://www.mtaonline.net/~hheffner/
