Muller Dynamo

[gyulasun]

romerouk

this circuit ist corect  ??

PEACE ...

Yes it still can work, the 20 kOhm has a little effect so you can omit it if you wish. The resistor R is more important to prevent too high current via the Hall and the base-emitter path of the PNP transistor.

EDIT  OK, you deleted it, no problem. Thanks. 

PEACE!

Gyula

[romerouk]

the hdd rotor has the magnets in NSNS
we have too many comments about that circuit... at the time, I was asked what is the circuit I used and I posted it, good or bad it worked for me. I am not saying it is the best but for my needs it served me well and I still use it in some of my quick testings.
@baroutologos
I am capable enough to build even more complex ones and you have no idea how many I built and tested in maybe hundreds of experiments I did.
below is a picture with one of the best I ever used, where the simple one PNP transitor was using 230ma to drive a motor coil this one in the same circuit used only 90ma.
the rotor was almost 6kg and magnets 35mm dia/40mm long
I have the coil connected ''wrong way'' as you say but I might have had a reason to use it like that, don't u think?
Anyway...

All the best,
Romero

[penno64]

I can not believe the shit you guys go on about.

Most are missing what is important!

Who cares how you power the drive coil/coils.

If we could only have more info on the pickup coil and its "special mode" connection,
we would be miles ahead.

the key is in the coils and their arrangement.

Please ease off from the drive circuit.

Penno

[redrichie]

@penno...X's2
The drive is not important right now.  friggin wind can drive the thing if necessary.  I still dont think the entire shorting method is correct from speculation. Just like the man said, drive it with a known rated driving motor first if need be. lots of intelligent people over her. Ive learned much.  Ya'll cant be tired of thinking are you? and create a diversion to figuring out where a resistor goes in a circuit that is working for someone else. Lets see some coil shorting.   many ways to do it.  I will have a spinner by the end of the weekend.  Work does have to come first in my world still.  Sorry.
Keep it up folks.

[bolt]

the hdd rotor has the magnets in NSNS
we have too many comments about that circuit... at the time, I was asked what is the circuit I used and I posted it, good or bad it worked for me. I am not saying it is the best but for my needs it served me well and I still use it in some of my quick testings.
@baroutologos
I am capable enough to build even more complex ones and you have no idea how many I built and tested in maybe hundreds of experiments I did.
below is a picture with one of the best I ever used, where the simple one PNP transitor was using 230ma to drive a motor coil this one in the same circuit used only 90ma.
the rotor was almost 6kg and magnets 35mm dia/40mm long
I have the coil connected ''wrong way'' as you say but I might have had a reason to use it like that, don't u think?
Anyway...

All the best,
Romero

Looks like H driver.  Did you use like 50Khz PWM on hall pulse driver?