Muller Dynamo

[ElectronManipulator]

I have been working on the Vapor carb system at this time, but I will be willing to study this basic system. And give some basic tips if needed.....

http://www.youtube.com/watch?v=-jQWdhjJouU

Do you have a discussion thread set up to talk about this?

Are you using an evaporative or acoustic vapor production method?

I dont want to take the thread off topic, but it is a great energy conversion.  You can run a vaporizor off a simple set of AA batteries.

[toranarod]

Hi Toranarod

On this replication I am using the same circuit as Romero

But you are correct that on the Steorn Automated PM rig I am using a encoder disk and Pic Circut I designed to log data, but no reason it cannot be used for pulsing.

I have used a Pic Chip before on many Rigs in the past and a sensor that trigger the pulse.
The Pulse Width is then determined and adjusted by the Pic Chip.
Had some very interesting results also with this method, but never made them public as it was being used on one of the original E-Orbo Rigs I built over 2 years ago now.

So with you on using Embedded controllers for varying the pulse width and duty time. But will stick to the original circuit for this one (For Now!!)

Cheers

Sean.

I would like to bounce a few ideas off you and get your opinion.
I thought you had used Pic processors before to control pulse motors. Its not about the processor but about how you may have experimented with the control
systems. I have noticed that it is possible to increase the speed of a motor by incrementing the PWN time and TDC in stages.
Its a bit like changing gear in your car. You can start at one time duty cycle and get it to RPM stage ONE. once there it is possible to go to the next RPM
speed rise. with out consuming any more current. accentually if done right current decreases with RPM speed increase.   
It becomes a combination of retarding the Timing and controlling the duty cycle. I also have developed the use of a multistage pule. this is amazing to see how it affects the return current and improves drive COP 

It should be possible to write a program that automatically can control the Muller motor to optimise's its out put. under different load conditions.
from a few test i have already conducted this is what Romero was doing with the magnets on the ferrite cores. its he was doing basically timing control mechanically.

you appear to one of the few that work on this stuff enough to have insight into what I am proposing.
I would like to set up a video to show you the function in progress and how the load and timing control output.





 
     

[TEKTRON]

Whew that's a lotta pages. Did I accidentally miss the page that stated the size and quality of the magnets used in the rotor to trigger the hall.
I'm slow moving but I'd like to replicate as exact as possible so I don't get myself into the what if scenario. Lots of newbies like myself gettin in
hope I can offer some benefit along the way.

Took a little to find it..

Quote from Romero:

Let's clarify some points regarding the sensors:
not both of them are using the small magnets.I started originally with both using the small magnets to switch then I tried to move one to get max results.
The second one is facing the big magnets from the top.This one from the top is activated after the magnet passed, the other one on the side of the rotor is activated like 1mm after the magnet passed the center coil.
This is difficult to explain, testing yourself will get you there but do the testing separate not both of then at the same time.

[ElectronManipulator]

I would like to bounce a few ideas off you and get your opinion.
I thought you had used Pic processors before to control pulse motors. Its not about the processor but about how you may have experimented with the control
systems. I have noticed that it is possible to increase the speed of a motor by incrementing the PWN time and TDC in stages.
Its a bit like changing gear in your car. You can start at one time duty cycle and get it to RPM stage ONE. once there it is possible to go to the next RPM
speed rise. with out consuming any more current. accentually if done right current decreases with RPM speed increase.   
It becomes a combination of retarding the Timing and controlling the duty cycle. I also have developed the use of a multistage pule. this is amazing to see how it affects the return current and improves drive COP 

It should be possible to write a program that automatically can control the Muller motor to optimise's its out put. under different load conditions.
from a few test i have already conducted this is what Romero was doing with the magnets on the ferrite cores. its he was doing basically timing control mechanically.

you appear to one of the few that work on this stuff enough to have insight into what I am proposing.
I would like to set up a video to show you the function in progress and how the load and timing control output.
     

Please do not limit yourselves to only PWM.  PFM is quite important in dealing with dynamic motors.

You are correct in your assertion that you can increase speed with no additional current draw, however you will loose torque proportionately.

Remember that frequency is as important.

The pulses, timed properly, controlled by a feedback loop will allow you varying frequency over the entire RPM range and torque/load changes of a motor/generator.

TI makes a very good set of power supply ICs that handle every aspect. PWM, PFM, and feedback of high speed switched supplies.

Maybe something to look into.

[LtBolo]

If the COP is .9 and you are going for 1.1, it is of substantial importance.

I think that somewhat misses the point. I wasn't referring so much to actual COP as much as maximum theoretical COP for the design in question. Achieving 0.99999 out of a possible 1.0 is interesting, but not terribly useful. I have yet to see anything in my lab that demonstrated a potential greater than 1.0, although I have seen many at 0.95 or better.

Which is not to say that I disagree with your points...I don't...I noticed the monster bridge too, which is clearly ill-advised for both switch rate and power dissipation. I do think it is somewhat academic though until anomalous power has been demonstrated. Using a micro-controller to control both the drive coils and the generator coils makes great sense, but it is not the easiest thing for most experimenters. My company designs and manufactures industrial controls...we would be all over automating the controls for this...but not until I can demonstrate more out than in.