Muller Dynamo

[Thaelin]

Mags:
   At the present, I would say it is mid magnet. At 6 divisions you can see a small vertical line at zero. That is the hall firing next to it I think. That specific coil set is next to the driver set. Actually will have to set up a led strobe with a trigger on the magnet to see for sure. Best guess for now.

thay

[Magluvin]

Thanks Thae

Im having A bit of difficulty at OUR with some there as to where these points are.  I have been claiming as what your guess is. But Point seems to think its not the way we are thinking it is.

Thanks again. 

Mags

[Arthurs]

Hi
@ Yfree
@ Mariuscivic
@ E2matrix
@ Bolt
Thanks for your help.

    I spent one day, according to your tips for repeated experiments. The results are as follows (I use RomeroUK provide circuit)

1) only use a top drive coil:
    Input voltage 12V, Current of 0.58A, Speed ​​of 1800rpm.

2) use both the top and bottom of the drive coil, Top of the drive coil end connected to The bottom of the drive coil end:
    Input voltage 12V, Current is reduced to 0.30A, Speed ​​dropped to 900rpm.

3) using both top and bottom of the drive coil, Top of the drive coil end connected to The bottom of the drive coil start:
    Input voltage of 12V, Rotor can not rotate.

    I present experimental results: Use only a top drive coil---high efficiency, At the same time using two drive coils---low efficiency,
    The effect of using a drive coil than the simultaneous use of two drive coils better.

    Where I did not do right?
    Hall effect position is not correct?
    Drive coil and the rotor magnet distance is not correct (I am now the distance is 9mm)?

PS: We check your settings, Maybe you also have that problem.

[Jdo300]

Hi Arthurs,

Judging by your description, I would say that your coils are to high of an impedance to get good current flow at only 12V input drive. I ran into the same problem when I was setting up my pulse motor to run with the High impedance coils instead of the original low impedance drive coils.

The simple way to fix it is to either use a higher input voltage, or if you want to stick to 12V, simply wire both of your drive coils in parallel. The input current will be higher but you should see much better performance.

Also, ensure that the magnetic field of both coils is not in opposite directions. An easy way to test for this is to determine which way the current needs to flow to get your rotor magnets to attract (or repel if you're driving in repulsion mode). Ensure that both coils produce the same effect on the rotor and wire them together + to + and - to -.

- Jason O

[Arthurs]

Hi Jdo300
   Thanks reply

   I each drive coil impedance of 2 ohm.