Muller Dynamo

[Magluvin]

Nice Marius

Do you have a separator between coils front and back, or is it one coil on top of another?

Mags

[mariuscivic]

HI Mags

No separator; the coils are not one in top of the other; they are placed one in back of the other. It is the right coil from picture 1

[konehead]

Hi Mariu
IF you place another gernator coil like one you have now, right exactly in beween the two rotor magnets, while the existing genrator coil is lined up like in photo (as is shown with it directly facing the rotor magnet) you should get a really nice perfect AC sinewave when the two generator coils are connected in series (paralell doesnt work for some reason) and also connect the coils in "backwards" series too...
in other words if both coils are wound same direction such as  left hand rule, have the OUT of coil A connect to the OUT of coil B then the two output wires are the IN of coil A and the IN of coil B and this is where you see the AC sinewave...it also doubles the frequency too...

[mariuscivic]

Here it is the other cool effect of the coil. With a small drop in rpm ( less than 30rpms) the coil rises the voltage on the light bulb from 0.92 to 1.26 and stays there.
http://www.youtube.com/watch?v=AH7YQ_gOWAY&feature=youtu.be

[gyulasun]

Hi guys

Today i have build a new rotor NNNN to test the new coil.
Playing with it, i have found some some anomaly about the sinewave.The coil is connected is series adding.
When the coil is under load, half sine doesn't ''bend'' like the other one or like in any normal coil. To make sure of that i have placed only one diode and to use only half sine.

1- new rotor hand made NNNN ( came out pretty good)

2- sine wave of the coil with no load

3- sine wave form with 4W light bulb connected (see the difference between positive and negative  sine?)

4- sine wave with FWBR and 4W light bulb

5- sine wave after the the FWBR and 4W light bulb

6- connection of the coils

When loading only the negative sine, there is allmost no difference in the sinewave.If you dont look clossly to the scope, you dont see it. The bad thing  is that lens is bigger (than loading only positive sine) and the output is less too.
I think that every one should build this type of coil for testing. There is one more cool thing about this coil but must do more tests to bee sure of it.

Hi Marius,

The difference between the two half waves within a single cycle can be due to the bigger physical distance of the coil on the outside wrt the inside coil  (less flux can it reach from the rotor magnet.  Also the core for the coils is very long to the outside, I think this also contributes to the difference because the other magnetic pole of the core gets far out and the flux- change at the end is lost from the coils point of view.
Lenz effect can manifest better in the inner side coil where the induced voltage is higher.
Re on the sinewave shape: the distances between the magnets are too big,  (Doug explained it) but this is no problem for such tests.
On your latest video: did you connect the coils as you show in Picture 6 above?  I think in this case the mutual coupling and inductance is bigger than it was when you connected the coils as you showed yesterday Reply #5726  If you have an L meter, you can check it but just testing it at the same rpm can also show it (higher L --> higher induced voltage).

Gyula