Muller Dynamo

[Dave45]

He's using harmonics I just know it, Iv been so busy havent had the time but I will eventually, if you find the resonance of your coils and adjust your rotor speed to get the resonance tune to load, then drop your rotor speed down to a lower harmonic of the found frequency this will seperate the driver from the generator allowing the generator to go into ou,
but if you just run balls to the wall you will never get ou

[Dave45]

when you find the resonance of the coils what happens, your finding the max output of the coil so how can it ever go ou   it wont but if you drop to a lower harmonic it lessons your input and allows the coils to ring into the higher frequency, this is the way to ou.

[teslaalset]

One thing I cant understand is how Romero just seems to plop all the power rectified from the generator coils straight into that DC RUN cap, and it took off to high speed and rpms skyrocketed, then he went with the DC to DC convertor and it controlled the runaway and it self ran.
ALWAYS when I put power form generator coils into cap, then try to run it back into the motor coils "directly", it lugs motor UNLESS you make circuit where caps filled up by generator coils is DISCONNECTED FRON GENERATOR COILS WHENEVER THE CAPS HIT THE LOAD....(load being the motor coil switching and the motor coils)
Romero was saying there is "one more componnent"
How about a three-lead reed switch ! (or solid state equivalent) , this is common simple way to disconnect cap from "source" whenever cap hits load.

etc.
etc.

And the "load" you want to be testing on your genrator coils is not a certain lump resisitve load, or a shorted condition, but rather your generator coils filling a cap up to twice the voltage of your run cap wihtin a certain amount of time (such as the time of one revoltuion of motor)
the run cap probably around 2000uf or so I bet on most of your rigs since mine is similar but half the size with only 4 rotor magnets
the "collector cap" should be a little more more uf vlaue than the run cap so for 2000uf run cap, then itts maybe 2200uf collector cap...jsut to cover losses of one cap into the other.

The buffer cap could be pre-charged before connecting.

[Jdo300]

@Kone,

Good questions about the output load takeoff. But if you use a DC-DC converter that is pulling a constant current from the output capacitor, that could be looked at as a constant load that could be tuned for (maybe). If the device is tuned to work when the output capacitor voltage is held at some constant value, then adding the DC-DC converter could be another way of isolating the load from the output.

@Everyone,

New motor build is now complete. Am working on a set of test procedures to determine the best way to see a speedup with the new rig. Here are the specs for each.

Drive coils (Blue tape) (each coil)

Wire Size: AWG 20
Turns: 246
Inductance: 1.63 mH
Resistance: 0.93 Ohms

Generator Coils (White Tape) (each coil)

Wire Size: AWG 25
Turns: ~900
Inductance: 15.5 mH
Resistance: 8.5 Ohms

I plan to begin testing the motor this afternoon and evening. Here are some experiments I plan to try:

1. Place generator coils in series canceling configuration and tune to series resonance with bridge rectifier connected and shorted on DC side.

2. Place generator coils in series canceling configuration and tune to parallel resonance with bridge rectifier connected and shorted on DC side.

3. Because the plastic mounts used don't allow me to place magnets directly on the back of the coils, I'm thinking about adding a DC bias to the coils to cancel out the cogging to the ferrite cores to see what effect this may have.

If anyone has any other ideas or suggestions, I'm certainly open.

My first goal is to observe the speedup effect and resonant amplification. I have access to a magnetic current probe (DC-50MHz) so I will be able to accurately measure the current and voltage in the tank circuit at resonance to characterize the behavior.

- Jason O

[resonanceman]

One thing I cant understand is how Romero just seems to plop all the power rectified from the generator coils straight into that DC RUN cap, and it took off to high speed and rpms skyrocketed, then he went with the DC to DC convertor and it controlled the runaway and it self ran.
ALWAYS when I put power form generator coils into cap, then try to run it back into the motor coils "directly", it lugs motor

Konehead

I still think Romero was just using a bridge.
If I remember right he was getting much less  voltage than you are getting.
I remember that he also said you have to tune it many  times..

I am still in  the planning stages for my motor.......so I can't say I really know anything about this motor....but I  have spent years expermenting with JTs so I DO know a thing or 2 about getting power out of a collapsing field.

I would say that Romeros  motor did not lug because his battery voltage was high enough in relation to his coil voltage to be a fairly high impedance load.

I believe  it was you that told someone that  Romeros rotor was probably farther away from the coils than their rotor because he was  getting less voltage.......... I agree and I think he did this to match his coils output voltage to his battery voltage.

Spacing the rotor farther from the core is one way to get the job done but overall power output will go down.
Perhaps a better way would be to increase the  battery voltage ......... I think I would start with a bunch of AAs and start connecting them in series across your bridge....... when  you get enough AAs in series your lugging should stop........then you will know what voltage your coil wants to work at.

Just my 2 cents worth


gary