comwarriors bedini feedback to source / new bedini - Update 7

[mcorrade]

very nice and interesting coil design. When you say "self run" what does that mean? You don't mean without external power correct?

[comwarrior69]

by selfrun i mean without battery pack... self sustaining... also known as UNITY!

[Pirate88179]

Great video! Keep up your work as I am learning a lot from it.

Bill

[eroutt]

hay comwarrior69 i was wondering! have you ever tried this before?

if you make a bifilar air coil and set it to run in self (Oscillation Mode) you should be able to reduce amperage because of friction from the spinning disk or whatever it is creating friction? at least it looks that way on my bedini self Oscillator? i have no moving parts! and better output then a standard bifilar! but i am not an expert by any means! great work i cant what to see more:)

[comwarrior69]

in self osc mode the magnetic field produced allmost nothing in the generator coil...

I've not played with self osc yet, but i still have the core that loved to self osc so i will be using that and having a play at a later date...

[comwarrior69]

i have take my first bifilar coil (see one of the earlyest videos...) and used a slightly modified bedini and the coil runs self osc on air drawing 330 mA... i can't hear it run, so i'm guessing a high frequency...

[comwarrior69]

The primary point of the video was to show that i have not broken any laws of physics and that lenz's law still applies...

What i have shown is that i have achieved a balance where the curent being drawn off and the resulting 'lenz effect' han be handled and harnised...

in normal operation the lenz produced by both generator coils causes my bifilar to act as generator coils providing power in the opposit direction hence why on my circuit I have D3 and D4 diodes.

[comwarrior69]

These two diodes allow the bifilar coils to operate as generator coils during the 'off pulse' part of the bedini cycle...

Basically, when i've done is to make an efficient pulse motor 80 - 90% MORE efficient to the point now where it's getting very close to unity...

Now, when i explain things i do my best to do so in plane english so the people that are not quite so well versed in the subject can still get a grasp of what i've done and why...

[Drevtoobe]

That's cool Kevin I am just trying to give you an alternative viewpoint and perhaps some of it will connect with you.  I am not an expert by any means.

Certainly you can get some power back from the coils with diodes, etc. But you can's forget that you are also putting power into the coils, and the net power flow is outwards into the coils.

In energy terms, the input power is sliced up like a pie. A slice goes to the rotor, a slice to each coil, a slice in the main coil, for one full pie.

[Drevtoobe]

I know that your real focus is on getting energy back from the coils through the diodes. When you short the coils though the main thing happening is that the coils are draining off energy from the setup, so I discussed that. A cautionary note though about the Lenz effect being an "energy generator" for the bifilar coil. You have to remember that the energy came originally from the bifilar coil, looping energy. You never get back as much as you put out because of the losses in the wires.

[Drevtoobe]

The Lenz effect explains how a transformer works. You can look at your setup as a three-winding transformer - forget about the pick-up coil for a moment. The main driving coil is pumping power into the two secondary coils, the "back coil' and the "wrap-around" coil. The back coil sucked more power than the wrap-around coil. The slowing rotor meant slower pulses, hence less rotary power. This spiraled down upon itself in a positive feedback loop until the motor stopped.

[Drevtoobe]

You are right that the back coil was more efficient in transferring power from the driving coil into the load. The "load" being the resistance of the wire. It might surprise you to know that if the back coil was a perfect conductor the motor would not slow down at all if you made the short. With zero resistance in the coil wire, current will oscillate back and forth but there is no voltage and therefore no power dissipation.

[Drevtoobe]

Here is what Lenz's law would predict: If you attached the right value of resistor to the ends of the wrap-around coil, you would be able to make the motor come to an even faster stop. Putting the right resistor value increases the effeciency of the power transfer. The proper term for that is impedance matching.

The reason is both coils actually "see" the same amount of changing magnetic flux. You can imagine about the same amount of flux going through the "catcher's mitt" of each coil.

[Drevtoobe]

The iron core will conduct the vast majority of the magnetic flux generated by the driving coil right through to the end of the core, past the end of the back coil. Therefore the back coil "sees" almost the same amount of changing magnetic flux as the wrap-around coil. The wrap-around coil "sees" almost 100% of the available flux. The back coil probably "sees" 95% of the available flux. However, the matching impedance for each coil is different, it's determined by the number of turns.

[comwarrior69]

What iron core??????

[Drevtoobe]

"What iron core?"

I should have said whatever the rods are. I'm not sure if they are welding rods or concrete rebar or whatever.

[comwarrior69]

As stated in a few of my vids... it's 15 X M4 threaded steel rods 120mm long...

[Pwordchernoir]

How does impedance matching the coil help in this instance? Why is it a positive that the rotor comes to an even faster stop???

[AlienNRG]

Hate that the over winding on the main coil didn't help a whole lot. It makes sense that the closer you get to the core, the stronger the magnetic field so the more current it generates. Maybe you will have to go to another coil opposite the drive coil to pick up more energy.

[Drevtoobe]

Hey Paul, the real point I'm trying to make is that that Kevin stated that there is a fundamental difference between the two coils, whereas the two coils are nearly the same in that they both have the capacity to draw enough power from the motor to bring it to a stop.

There is a simple demo (I think in the MIT series of clips) that shows a coil's output waveform in a similar setup. Then they rotate the coil by 90 degrees and the voltage disappears.

[Drevtoobe]

When the coil is generating an AC voltage it's because there is changing magnetic flux going through the loop. When the coil rotates by 90 degrees there is no changing magnetic flux going through the loop anymore and so there is no voltage output. In this setup both coils cut through about the same amount of magnetic flux so both coils have the capability to draw off about the same amount of power. That's the point.