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Overunity Machines Forum



Holcomb Energy Systems:Breakthrough technology to the world

Started by ramset, March 14, 2022, 11:07:24 AM

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0 Members and 47 Guests are viewing this topic.


pmgr

The images that were posted are of of Holcomb's latest configuration (his latest patent). The patent that UfoPolitics mentions is an older patent and the structure in that patent is "outdated", yet the drive electronics probably still apply. The structure you see in the images above (@Feb2006: not sure where you found those; can you let us know?) is the latest structure that you also see in his videos. It consists of two rotors and one three phase stator (center) with lapped windings.


The flux flow in that structure is such that BEMF (and I am talking about transformer BEMF, not rotational BEMF which is of course not there as everything is fixed) from the stator coils back into the stator coils is avoided!


This means BEMF of the stator coils has nowhere to go but fold onto itself.


@Ufopolitcs


Here is a video of of Pierre's device: https://www.youtube.com/watch?v=Wn49fDHCHdo&t=5s


Floor

Electric fields are pulsing on and off = BackElectroMotivForce.

Rotating armature or not, still there will be BEMF.

The real question is whether or not the BEMF is usefully applied or not.

The fields in this device do not actually rotate, they instead are turned on and off, such that the
positions of the poles of the activated fields around an axis / in a circular arrangement of
coils forms a series of alternate polarity changes. Basic principle of / similar to all electric
motors and generators

Although truly not a conventional, nor a singular transformer, rather a series of interconnected
transformers, but still it is a transformer (magnetic fields are shared between two or more windings
via an iron core). Holcomb's design has the addition of an air gap.

Holcomb's statement
"However, the standard generator rotor only aligns the domains one time at start-up,"
is untrue.

If it works...

Perhaps it is because the back EMF is to a large degree constructively utilized
                                 and / or
there is some kind of      escalating cascading    effect in the field interactions ?

What ever the case may be, Holcomb has not made / has not given the correct explanation.

There could be simplified models / experiments which can verify the effect ?

P.S.

  I think pmgr and I are saying essentially the same things here...

pmgr

@Floor, yes indeed the same thing.


Looking at the MOSFET driving schematic, the coils are driven with a regular 4 MOSFET H-bridge configuration. However at the top of the H-bridge are two sets of 2 MOSFETs added in each leg in series (269 and 270 in left leg, and 272 and 256 in right leg). Not sure exactly why yet, but...


When the coil is switched off, according to the patent, the upper H-bridge FET 272 (powered by battery B) is switched off first before FET 209 in the lower left leg of the H-bridge is switched off.


Based on this configuration, the electrical BEMF that is created when the pole is switched off has two paths to find its way back to itself:


1. Part of it will find its way back through the body diodes of MOSFETs 207,269,270 (in left half of H-bridge), then through battery A to GND and then from GND back to the coil through the body diode of FET  225.


2. Part of it will find its way back through FET 209 (which is still ON) to GND then through the body diode of FET 225  back to the coil.


Which one of the above 2 currents is larger will depend on the resistance in each path. Most likely FET 209 will take most current first and by the time that FET switches off, if there is still energy left in the coil, this will go to battery A.


So part of the electrical BEMF (energy that is stored in the coil) is partially recycled to battery A but most of is likely dissipated through the resistance of the coil itself and of FET 209 and body diode of FET 225.


And this brings me to the reason why Holcomb probably added these MOSFETS in the upper legs: to spread the BEMF voltage (which sizes will depend on how fast the MOSFETs are switched off and on the forward voltage of the body diodes) over these these 4 MOSFET body diodes (225,207,269,270) instead of over just two (225,207) so as not to burn out the body diodes (and thus the MOSFETs). The forward voltage of the body diodes will also determine how far the battery voltage on battery A can climb up above 12V; basically 4x the forward voltage of each body diode.


A similar reasoning can be applied to a pole of opposite polarity (basically driving the H-bridge in the other direction).


So the electrical BEMF is mainly dissipated but some reused to top off the batteries (this happens for both pole polarities N/S). It basically means that the energy that was stored in the coil is not just dissipated, but partially sent back to the batteries (Pierre Cotnoirs DZ generator did this too).


I note that all of it could have been sent back to the batteries if FET 209 were switched off first (instead of FET 272).


But now there is also the magnetic field BEMF from the secondary (the stator in this case) and this BEMF would be generated when a load is applied to the stator coils (and I am referring here to the same thing that @Floor mentions). This BEMF will work against the the batteries (same way as in a regular transformer) unless it can be avoided that the BEMF flux makes it to the rotor pole coils (think about something like a BITT configuration). I think that that is what could be happening here with the way the machine is designed (rotor-stator-rotor configuration). I think it could work, but I have to confirm it with simulations to be sure.

Feb2006

Back EMF doesn't matter transformers can be nearly 100% efficient


http://www.physics.usyd.edu.au/~khachan/PTF/Transformer%20explanation.pdf


What's matter is eleminating reverse torque !