Muller Dynamo

[nul-points]

Also Lidmotor did a new video:
[...]
So let me recap this.

You are using 2 series coil pairs and each coil pair has its own bridge rectifier.

One is putting out 1.7 Volts chopped DC and the other is putting out about 1.8 Volts chopped DC..

Now if you put both of these chopped DC outputs in parallel they are putting out 2.5 Volts chopped DC ?

Is this correct ?

Regards, Stefan.

yes, that's what Romero said

Each coil in my setup has an output of 11.1 -11.6DC after the bridge, not all the same as I have small diferences or misscount some turns during the making of the coils.Having them in parallel I get about 15volts at full speed

Do all this testings without having the rectifiers connected together.Measure every coil separately. Even if you don't get too much out from the coils, don't worry, when all are connected things will go magic

this is some of the info i compiled a week or so back, from going through all Romero's tips in the thread
(we posted the tips to a blog - and linked here for reference)


looks like khabe could do with following a bit of his own advice! 

[addressed to nul-points...]

read one time more all Rom´s posts, at least 20 pages but carefully,
And think,
[...]
cheers,
khabe

maybe sometime a few of us will show you the 'thinking' we've been doing about the 8x rpm magnetic wave travelling around the whole rotor

we mentioned it a week or so ago, and only now are people beginning to 'discover' it all over again


you are perfectly entitled to disbelieve that all of this effort on this thread is just a chasing after the wind, but we've heard your opinion now and it is not necessary to repeatedly offer negative comments every time people try to make sense of some very obvious anomaly that defies conventional 'knowledge'

it sounds like you have a wealth of practical experience to offer, so you could do something constructive in this thread, like i've suggested before  - i know you are capable of doing this, as you have made useful suggestions from time to time 

the alternative is to hold your peace and see if we fail in our attempt - and then we can get a true measure of your character by seeing whether you commiserate with us all and say "better luck next time" or whether you gloat (as some already have) and say "i told you so"

can you do one of those suggestions above?


i'd just like to say how encouraged i am with the general teamwork and 'esprit de corps' shown in this thread by the majority of members - including Romero who shared this with us all

i'm sure that there are a lot of 'silent' watchers out there, just picking the bones, making a build, and not contributing, but i personally am very grateful for all the constructive feedback and mutual encouragement in evidence here

it makes a big difference to get you through the 'stumbling blocks' when you know that you can ask for advice, or clarification, or data from people with more experience, a better memory, or who are just further down the road with a build

thanks all, i appreciate it - keep those replications rolling!
np

[Edit: clarified question to khabe]


http://docsfreelunch.blogspot.com

[nul-points]

Okay, I worked now on RomeroUK´s first video circuit diagram.
Here it is including the recovery diode.

The recovery diode clamps all voltage higher than about 12.65 Volts down to
the battery voltage plus the 0.7 Volts diode voltage.

The question to me still is, why the battery voltage is still decreasing,
when  the lamp is not switched on ?
Normally the about 15 Volts open circuit voltage after all the rectifiers
should charge up the battery via the recovery diode, but the battery voltage
is still falling shortly after startup...
[...]

Stefan

i believe Romero also mentioned that he had a small buffer capacitor in his first video, before he connected the 47000uF for the 'self-run' video

i think it may be the silver cased component we see on the table

if it is connected, then it's maybe not providing much buffer action on the FWBR outputs

there won't be 15V on the output, obviously  (even without lamp load) in this circuit, because the diode will clamp the o/p to be approx Vbattery + 0.7V

i would think that the battery has a slightly higher 'resting' voltage than when under load

when you start the system the battery still has to provide the start up energy - the voltage may fall initially due to this

Romero said that the battery was charging with this config, so maybe he saw a net voltage rise on the battery with longer runs?

hope this helps
np


http://docsfreelunch.blogspot.com

[khabe]

Good Morning, nul,
Many thanks for homily and reprimands,
May I ask some questions, please believe me - cap in hand
When

One is putting out 1.7 Volts chopped DC and the other is putting out about 1.8 Volts chopped DC..
Now if you put both of these chopped DC outputs in parallel they are putting out 2.5 Volts chopped DC ?

then what will  total V when all coil pairs connected parallel after rectifier bridges
cheers (humbly),
khabe

[nul-points]

Good Morning, nul,
Many thanks for homily and reprimands,
May I ask some questions, please believe me - cap in hand
Whenthen what will  total V when all coil pairs connected parallel after rectifier bridges
cheers (humbly),
khabe

you need to ask Lidmotor that question - he is getting >2V when combining two bridges with only approx 1.8V each

see my quote from Romero above (although obviously you've already seen it when you read through the whole thread) for the change between individual bridge o/p (approx 11.5V DC) to the final combined o/p from 7 bridges (15V DC)

does that answer your question?

[conradelektro]

Muller Dynamo. Comparison between numbers of coils and magnets

http://youtu.be/BaqRXKRSFOc

Conclusion

It does not matter if you have an odd or even number of rotor magnets, if you want 'Events' to travel 'with' the rotor direction you must have a lower number of stator coils.

@bourne: Very nice thinking and very clear demonstration. The systematic nature of the "travelling occultations" depending on the number of magnets (on the rotor) and the number of coils (on the stators) and the direction of the apparent movement of the "occultations" (with the rotor movement or against it) is a very important insight.

Question: Does the direction of the occultations (with the rotor movement or against it) have any real effect?
Answer (just a speculation): Since the coils (their cores) attract the magnets, the occultations should move with the rotor in order to assist its rotation.

Question: Is it better to have more occultations? (More occultations ->more energy created?)
Answer (just a speculation): Since it is (generally speaking) better to build a dynamo with more magnets and more coils (than with less) it should be better to have more magnets and more coils on this type of generator as well.

@all: Please post your speculations concerning the optimal number of magnets and coils and the direction in which the occultations should move.

Greetings, Conrad