Muller Dynamo

[i_ron]

  Everything is dependent on everything else and effects it!  How it all fits together  is really fascinating and gives you a very clear picture of the process.


Respectfully
Ben K4ZEP

Great work Ben!

Gives me hope!

Ron

[altair]

Hi altair,

Actually, there are actually four different kinds of Bifilar-wound coils. These depend on the connections and the direction that you put the current in each one.

If we assume (for example) that the bifilar coil is a pancake coil (like Tesla's original one), then you can do one of four things:

1. Hook the windings together in parallel with the current going the same way.

2. Hook the windings together in series with the current going the same way.

3. Hook the windings together in parallel with the current going opposite directions.

4. Hook the windings together in series with the current going opposite directions.

Each configuration creates a unique series of characteristics and circumstances depending on what you want to do.

Tesla's original Bifilar coil was wound like #2 in my description. The idea is to increase the electrical potential difference between the individual windings without canceling the inductance of the coils. This way, the inter-winding capacitance can be greatly increased to allow the coil to self-resonate at lower frequencies.

- Jason O

Hi Jdo,

you are right about the pancake coil.
I assumed that the first conductor went from outside the coil to the center, and then jumped to the second one going from the center to the outside.

I just took a good look at the patent, and its actually the first conductor jumps to the OUTSIDE of the second one and coils back again towards the center. This of course makes the current direction the same in adjacent conductors.

Thanks for the heads up !

Very clever that Tesla.  This would be a great way to get very high inter-winding capacitance, if a coil was made of copper tape instead of round wire...

Altair

[Hoppy]

Hi Hoppy,

Correct with corrections, I end up with a series LOOP circuit consisting of the (1) Variable Pwer supply set to +14.00 VDC and (2) the ISOLATED generator supply consisting of 2 coils in parallel, phased the same, feeding bridge to a 68000UF cap. (the Generator coils/bridge/cap make a separate power supply) which under load settles down to about +5.48VDC,  the two above power supplies are wired in a series circuit + to -, + to - which means their voltages are additive (19.48VDC) and they share the loop and common current and are then connected to the standard PULSE motor driver circuit, which is 4 air coils in series driven by a Hall/Tip41 pulse circuit.  The load of the generator self regulates the speed of the rotor, etc. as it is still under unity and does not run away.  Everything is dependent on everything else and effects it!  How it all fits together  is really fascinating and gives you a very clear picture of the process.


Wife still not ready to go out for day...........in a holding patern.

Respectfully
Ben K4ZEP

Thanks again Ben for the detailed description of your setup. Are you able to measure the full additive 19.48V across two points of your circuit? I ask this because I don't think that the 14V and 5.48V can be legitimately added. This is because the 5.84V secondary supply voltage is sitting on the capacitor unloaded and indirectly derived from the pulsed coil - driving the rotor - which is directly derived from Vsupply - FWBR Vdrop, whereas the main PSU voltage is loaded by the motor coils. Hope this makes some sense to you.

Hoppy

[d@rkenergy]

this is my rotor .materyal is ''delrin''  10mmx200mm only 4$. magnets are 3mmx15mm. 3 mag together total 9mm.

[k4zep]

Thanks again Ben for the detailed description of your setup. Are you able to measure the full additive 19.48V across two points of your circuit? I ask this because I don't think that the 14V and 5.48V can be legitimately added. This is because the 5.84V secondary supply voltage is sitting on the capacitor unloaded and indirectly derived from the pulsed coil - driving the rotor - which is directly derived from Vsupply - FWBR Vdrop, whereas the main PSU voltage is loaded by the motor coils. Hope this makes some sense to you.

Hoppy

Hi Hoppy,

You need to back up and look at what I have said in the 2 videos, and observe what is going on VERY CLOSELY. 

Legitimately or illegitimately, the voltages add up and I measure it at the motor terminals (I call it the RAIL voltage) which reflects the + of Gen. supply and the - of the variable power supply which are both in SERIES with each other!!  It is absolute, it is real, look at the 4 meters in the 1st. video, showing, from front to back, Floating GEN CAP voltage under load, RAIL (MOTOR INPUT VOLTAGE @ the input to the HALL/TIP41 INPUT), variable power supply voltage (fixed @ 14.00 VDC in this experiment) and current, somewhat variable. Its all there right in front of your eyes. 

Yes I realize there is a mechanical connection to the rotor via magnetic coupling, and a slight correction to your statement that the 5.84VDC is from the series unloaded circuit, that is not correct.  The unloaded voltage of the Generator not in the boost mode and out of the loop is around 8.5 to 9 VDC in the generator  Cap. and once the Cap. is charged up presents no load to the pulse motor except for hysteresis in the mass of the coils, air loading, etc! When in boost mode (generator wired into the loop!) and putting energy back into the loop (LOADED) the voltage across the Gen. Cap is 5.84 VDC. @ about 40 ma  less  the loss or IR drop in the 4 diodes and resistance of the generator coils and a few other variables.  You must realize that the voltage and current outputted by the loaded generator is totally dependent on the efficiency of the pulse motor and how fast it can spin the rotor at the looped load and is at its best speed/rpm is at ONE particular frequency reflected into the L/C circuit of the GEN.  Some things such as series circuits vs. parallel circuits and resonance circuits we learned 50 years ago in EL101 (whew, I'm getting old)  hence the dynamics of a floating resonant generator warp the mind when first considered!  Think of this as a simulation of a OU device in that I use the variable PS to simulate 2-4 other gen. coils and when used with this one coil set, I can look at the real world variables (voltage, current, RPM, gen output, total look current) going on and learn from the interactions as to what is really happening!
I hope we can put this to bed now and go forward............

A couple other observations from questions received.  My pulse motor will run over the voltage range of the Hall effect device as a stand alone pulse motor.  With the simple Hall/Tip41 circuit, I see some clipping around 25VDC input and 3500 RPM and it self limits its speed.  I have not tried to make a better driver as I simply do not need it. I am considering using a HEXFET as the driver but later I think. There are and I have seen some beautiful drivers out there, micro processor controlled, H bridge circuits, all most excellent, but at this point, I simply don't need it right now.  Not to say in the future there would some excellent uses for these devices in more complex units.  No I have not tried AV plugs in this circuit as I feel they are not of any use here. DC resistance of coils is a place to start but you must look at AC inductive reactant in the running device. Back EMF, Counter EMF, inductive kickback, etc etc. can all be recovered or not used as reflecting on what you are trying to do.  That is Make the SYSTEM efficient.....

Now I'm going to take a nap (you can do that when you are retired!) and then put a second coil set on the device this evening. 

Later and I remain,

Respectfully,
Ben K4ZEP