Thane Heins Perepiteia.

[baroutologos]

Hi Baroutologos
The only thing I can say is maybe there is even more acceleration with a higher frequency.
peter

I think that also. IMO, magnet speed initiates the event alone. Magnet frequency as i perceive it has to do with output. (more magnets per pass, less coil idle time = more output = better accelaration) But, that is theorizing to the moment. No hard evidence yet.

............................
Regarding transformer inefficiency i can verify that. I am a builder and owner of a simple bedini SSG. It runs at 300 to 400 rpm with 18 ferrite magnets on the circuference and comsumes some 3 watt.

When i add an high voltage coil, (29awg @ 340ohms) , it outputs 100vAC and 20mA when shorted. The notable effect is that when shorted it does not slow the rotor down, whereas it doen not accelarate it also.
When an 10Kohm resistor is connected there is a current of 7mA through it. Note 20 mA shorted (340ohms coil resistance) and 7mA through a 10Kohm resistor.

So, by doing the math it outputs some 0.6 watt. The little resistor becomes very hot also.

When i used a step-down transformer it hardly could light an 6volt 50mA bulb. So much of energy is wasted on the rather small trasformer.

BUT.. when i use a capacitor, 2200uf could be charged at 60volt in 12 secs. So... with proper arrangement that small lightbulb could be sustained to be lit.

Bottom line, for small setups, transformers are lossy. Caps are better.

Regards,
Baroutologos

[i_ron]

@i_ron

Wow my math was 60x off rofl. 900hz it is with 18 magnets @ 3000rpm. Damn rpm/min...
Thanks

No prob, bin dehr dun dat

R

[petersone]

Hi Baroutologos
The set up you described is running at about 7khz where as heins is running at about 25kz which is perhaps why you are not seeing any acceleration.
peter

[baroutologos]

@ Peter

Excuse me Peter, but am I not measure it correctly? 7 Kilo-herz? Per what? Per minute?

I said 18 magnets pass over coil at a rate of 5-7 rotations per sec (depends the input). That's a frequency of 90-125 Hz. Not 7 Khz.

Hertz frequency is measure on second basis.

Regards,
Baroutologos

[petersone]

Hi Baroutologos
Sorry,you are right,Heins is about 400hz,as you said your's is about 100hz,have I got it right now? if so there is a big differance.
peter