Author Topic: Muller Dynamo (Read 4345168 times)

gyulasun · « **Reply #270 on:** May 07, 2011, 10:12:40 PM »

Quote from: gauschor on May 07, 2011, 09:57:02 PM

Hi, I am still not 100% clear on the electric circuit in how the remaining things are connected, in which order and where to. I have now drawn a picture, can someone look at it and correct it if its wrong and clear up the few points where I added a question mark?

I believe it is ok, no need for the question marks, and yes the output from the DC-DC converter goes back to the two Hall switch circuits.

EDIT: The place of the bulb: if I recall correctly Romery connected it across the output of the DC-DC converter. It is a user choice, the main generator output is across the big puffer capacitor i.e. the input to the DC-DC converter.

bourne · « **Reply #271 on:** May 07, 2011, 10:45:07 PM »

@groundloop and our other EE wizzkids

I can't remember if this has been mentioned before

I have been searching around for the Hall effect sensors and have found the A3144uea has been discontinued.

One of the manufacturers suggests the A1120EUA-T as an alternative

http://uk.rs-online.com/web/search/searchBrowseAction.html?method=searchProducts&searchTerm=A1120EUA-T&x=20&y=6

would you agree this is what we need?

toranarod · « **Reply #272 on:** May 07, 2011, 10:47:33 PM »

Quote from: toranarod on May 07, 2011, 09:40:15 PM

thanks thats a great idea
I have the wire never accrued to me to wind my own.

toranarod · « **Reply #273 on:** May 07, 2011, 10:49:23 PM »

Quote from: bourne on May 07, 2011, 10:45:07 PM

@groundloop and our other EE wizzkids

I can't remember if this has been mentioned before

I have been searching around for the Hall effect sensors and have found the A3144uea has been discontinued.

One of the manufacturers suggests the A1120EUA-T as an alternative

http://uk.rs-online.com/web/search/searchBrowseAction.html?method=searchProducts&searchTerm=A1120EUA-T&x=20&y=6

would you agree this is what we need?

gauschor · « **Reply #274 on:** May 07, 2011, 10:56:15 PM »

Thanks gyulasun, and thanks to Groundloop drawings, I have updated the picture from last post with the correct order, hopefully it's correct now.

gyulasun · « **Reply #275 on:** May 07, 2011, 11:00:36 PM »

Quote from: bourne on May 07, 2011, 10:45:07 PM

@groundloop and our other EE wizzkids

I can't remember if this has been mentioned before

I have been searching around for the Hall effect sensors and have found the A3144uea has been discontinued.

One of the manufacturers suggests the A1120EUA-T as an alternative

http://uk.rs-online.com/web/search/searchBrowseAction.html?method=searchProducts&searchTerm=A1120EUA-T&x=20&y=6

would you agree this is what we need?

Here is the manufacturer recommendation on replacement:
http://www.allegromicro.com/en/Products/Part_Numbers/3141/

so it is type A1104 which is available as replacement.

EDIT type A1120 is a more precise (chopper stabilized) type, probably more expensive, with the same voltage and 25mA output current ratings. So not really needed once the A1104 would do. Of course prices are to be compared, I do not know by heart...

ALSO: any such type should work like toranarod suggests above

Gyula

hartiberlin · « **Reply #276 on:** May 07, 2011, 11:05:15 PM »

@Groundloop.
You made your last correction for the magnet fields wrong inside the ferrite cores.

As red is North you just made the wrong polarity, so the magnet rotor will not be pulled into the core !

Mem · « **Reply #277 on:** May 07, 2011, 11:12:13 PM »

Quote from: romerouk on May 04, 2011, 01:08:19 AM

Here is my replication of a Muller Dynamo with few addons.

Muller generator magnets and coils were odd and even numbers. Like 17 magnets and 16 coils (or something like that) Looks like you created your own version.
ROMEROUK GENERATOR

bourne · « **Reply #278 on:** May 07, 2011, 11:21:06 PM »

Quote from: gyulasun on May 07, 2011, 11:00:36 PM

Here is the manufacturer recommendation on replacement:
http://www.allegromicro.com/en/Products/Part_Numbers/3141/

so it is type A1104 which is available as replacement.

EDIT type A1120 is a more precise (chopper stabilized) type, probably more expensive, with the same voltage and 25mA output current ratings. So not really needed once the A1104 would do. Of course prices are to be compared, I do not know by heart... ALSO: any such type should work like toranarod suggests above

Gyula

Its only a minor detail but thanks for clearing that up Gyula

woopy · « **Reply #279 on:** May 07, 2011, 11:57:56 PM »

Voili voila

thanks Romero another time , so i made my rotor at 20 cm diameter 1 cm thick in POM ( polyacetal ) and please in a green color. just for fun !

The magnets are 20 mm diameter and 10 mm thick,

For the interested , the CAD program is TURBOCAD. Very easy to use

good luck at all

Laurent

hartiberlin · « **Reply #280 on:** May 08, 2011, 12:03:57 AM »

Hi All,
I compiled a PDF file with all the important informations and graphics:

http://www.overunity.com/index.php?action=downloads;sa=view;down=469

Regards, Stefan.

chrisC · « **Reply #281 on:** May 08, 2011, 12:06:28 AM »

Quote from: romerouk on May 06, 2011, 03:25:11 PM

@neptune
What is your longest looped run to date please?
Well the longest is the one I have recorded yesterday(about 20 min), after that I had no patience to sit and just look at it.I have some other projects in progress but this weekend I will have it running over night.

Hi RomeroUK

Were you successful in running the device overnight? Last time you said it ran 'looped' for 3.5 hrs. but was trying to run it longer until the neighbors complain? Can you update us please? Thanks.

cheers
chrisC

gauschor · « **Reply #282 on:** May 08, 2011, 12:10:32 AM »

Oh man, I can't express how amazing this all is, this really is a great thread. Much Much thanks to RomeroUK for showing us this gift!!! and all the people in here, working out the details together and helping each other... *shnieef*

May I quote powercat from the other topic:

Quote

I hope we are witnessing the beginning of an energy revolution.
Which will lead to Being able to grow food anywhere any time of day,Travel as far as you want as often as you want, we all dream of it, is now the time when the dream becomes true ?

hartiberlin · « **Reply #283 on:** May 08, 2011, 12:14:37 AM »

Here is the updated setup picture from Groundloop with the
right magnetfield polarisation inside the ferrite cores, when the coils are energized
and the rotor magnets are attracted into the core gap.

romerouk · « **Reply #284 on:** May 08, 2011, 12:17:13 AM »

@gauschor
the picture you posted is 100% to what I have used.The circuits have some 0.1uf capacitors just for filtering... but that is not important.

To ALL:
This generator can be driven by many other circuits or from an external motor connected to the shaft.Don't concentrate too much on the circuit used to drive the coils, that is simple.
People replicating this should have a little bit more big coils (size and windings).
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.The amperage is good but I would prefer to have a bit more voltage.
Diodes on top of the bridge rectifiers are not 1n4007, are 1n4001. I am sure I can get better rectifiers but this is what i had.The voltage drop is quite high and nothing works as it should.

@Stefan
I will connect a coil to the o-scope to get waveform...
I will have to do it tommorow as I have stopped working now, I am too tired now.

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Author Topic: Muller Dynamo (Read 4345168 times)

gyulasun

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