Thane Heins Perepiteia.

[CRANKYpants]

Laurent,

Yes, I agree, the counter electromotive force (lenz vector) is almost exactly instantaneous with the
applied flux, but, like the applied vector will take a path of least resistance.  So maybe Mr T is
correct and feeding two cores from one core that is half the size or less does lead to a bottleneck
for the returning lenz vector?

Ron

GOOD...
LEAST RELUCTANCE IS MORE APPROPRIATE THAN LEAST RESISTANCE.
THE CORE RELUCTANCE INCREASES AS FLUX MAGNITUDES RISE.

SO AT TDC (magnet neither approaching nor receding) THE PRIMARY CORE LEG OUGHT TO BE SATURATED OR VERY CLOSE TO IT, THAT WAY ANY INDUCED COIL FLUX MUST FLOW TO THE OUTER COIL LEGS.

SOME INITIAL FLUX MAY BACKTRACK DOWN THE PRIMARY LEG BUT IT MAY GET "CUT OFF" AT SOME POINT AS THE RELUCTANCE RISES.

INDEED MORE TESTING REQUIRED.

@ LAURENT: NICE TO SEE YOU RUNNING WITH THIS... 

T

[sparks]

  Lenz law is talking about the counter electric motive force.  The induced voltage in the coil not the current flow in the coil.  You have to change the magnetic core parameters to induce the voltage.  You do not have to pull the current immediately.
The alternators of today do because they have lowimpedance coils to keep the resistive losses down.   

[CRANKYpants]

I completed the third rotor yesterday and want to wind a coil for it today.

I_RON, 100 - 150 OHMS 30 GAUGE WIRE

- START WITH THE HV COIL AND GET IT WORKING FIRST BEFORE YOU MOVE ONTO ADDING THE OUTER E FINGERS OR TURN YOUR E COIL SIDEWAYS SO ONLY HV COIL IS INTERACTING WITH ROTOR MAGNETS.

MAKE SURE THE OUTER E FINGERS ARE SLIGHTLY RECESSED (1/8") TO ENCOURAGE HC FLUX TO GO INTO THE HV COIL AND NOT INTO THE ROTOR MAGNET'S PATH.   (SORRY I BOXED YOU A COIL YESTERDAY BUT RAN OUT OF TIME TO MAIL IT.)

AND MAKE SURE THE HV CORE IS NOT TOO HIGH - IF IT IS TOO HIGH I.E INTERACTING WITH MORE THAN ONE MAGNET AT A TIME IT WON'T WORK.

HERE IS A PIC OF THE NEW MANUFACTURED COIL - YOU CAN SEE HOW I HAD TO GRIND AWAY SOME CORE MATERIAL TO GET IT TO ACCELERATE (WHEN PREVIOUSLY IT DECELERATED - BECAUSE THE CORE WAS TO HIGH).

ALSO TURNED SIDEWAYS (& NARROWER OR THINNER) IT ACCELERATES VERY WELL.

THE DIFFERENCE BETWEEN A GOOD WORKING COIL AND A NON WORKING COIL IS VERY SUBTLE.

CHEERS
T

[wattsup]

@sparks

Yep. Not to confuse with flyback.

@all

As usual, I am always looking at what guys do and try to find things that are already made.

So to keep with my tradition - lol - what if the HC and HV coils were simply taken by using a regular microwave transformer.
If you look at the 4th and 5th images located here;
http://www.overunity.com/index.php?topic=3972.msg129277#msg129277

All you do is wind an outer coil over this one.  You can then have both a primary and secondary coil to draw from and wind the outer one. Just wondering.

[Kator01]

Hi Laurent,

concerning your coil-disc-setup :

what kind of disc is this : a haddrive-disc or a CD-disc ?

Now just using straight dc is not effective. My idea here would be a hall-sensor placed near the magnet as it passes the coil in order to switch current off and in succesion switch a load on the coil to use the reactive-emf magnetic field to push the magnet away.( But this is Bedini-stuff )

What are your results so far ?
What do you mean by Ultralight ?

The same suggestion applies to thanes coil. For improvement I would use a hall-sensor for timing the load in the hv-coil. This would be my next systematic step because is is not necessary to change the coil, just to add a switching circuit which Luc could provide, I guess. Up to now the hv-coil is under load all the time.

What do you say @thane ?

Regards

Kator01