Muller Dynamo

[MasterPlaster]

@ben
I have been an admirer of your work for a long time. I would lke to point out that the DVMs are not generally designed for the kind of measurements we subject them to and whilst I am wishing you good results, perhaps better techniques should be used to disperse any false indications.

Many regards

[MasterPlaster]

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.

@Jason, do you know of any published research or experiments about the configurations you pointed out?

[Arthurs]

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

Hi K4ZEP:

   Can provide detailed schematic diagram?

Thank you!

[tinu]

Hi All,

Just a quick synopsis:

Test 5 min ago.

Variable Power Supply set to 14.00 VDC.

Motor voltage      14.00 VDC, Generator unloaded voltage across cap..................................8.57 VDC,  RPM 2300
Motor voltage      14.00 VDC, Generator on RESISTIVE load to lower voltage to NO BOOST.....5.48 VDC,  RPM 2010
Motor voltage      19.48 VDC, Generator in BOOST MODE, Generator voltage........................5.48 VDC,  RPM 2513.

The difference the generator provides as a loaded device/Generator is + 503 RPM.......give or take in it's loaded state.

Gone for the day.

Respectfully
Ben K4ZEP

Hi Ben,

I suspect the behavior, which I admit is mind puzzling, is due to the regulated PS. I explain it:

http://www.youtube.com/watch?v=zrj4Lq9I_6c

When rotor at rest, the PS is loading the 68mF cap in reverse polarity, up to a -.363V (when equilibrium is reached). For that equilibrium, PS delivers about 5mA which is ok. IMHO you do not “leak voltage” and all voltmeters work fine. PS built-in voltmeter fluctuates in between 14.4 and 14.3 so I’ll take 14.35V. And 14.35 +(-.363) gives exactly what you read on the “more accurate one”, namely 13.9V. So everything is clear to me so far. Agree?

Further, you kick the rotor on and experiment begins. The same 68mF starts charging. Puzzling!!!

I believe that, most probably, the PS has a significantly lower filtering cap, maybe 10mF (please confirm). If so, 68/10=6.8 and the back EMF from motor coils is largely felt by the PS and not by the 68mF cap which act as a short at that frequency. The regulated PS when detecting a decrease in voltage, tries compensating that by pulsing up the current, hence more power delivered to the motor coils.
On the other hand, a resistor placed instead of 68mF would take most part of the back EMF voltage on it (series circuit -> voltage divider as per impedance ratio) so the PS will act very differently.

Please comment. (I apologize for leaving the forum now but it’s late in the night here.)

Respectfully,
Tinu

[maw2432]

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

@ d@arkenergy,

Nice looking rotor.   Where did you find your delrin?   Did you have to cut your own circle/disc?

Bill