Muller Dynamo

[mariuscivic]

this  is my new vid http://www.youtube.com/watch?v=pxSe5yg0eW0

[kEhYo77]

Hi mariuscivic.
From your video I can see the difference between the coils as this:
The long coil has more turns and gives you higher voltage but not higher power because of longer wire used and higher resistance of this wire.
The 'fat' coil next to it that gives the most power has smaller resistance so less power is wasted on heating the wire, low losses = higher power output.
The Lenz reaction is more visible with this 'fat' coil because of lower inductance in comparison to the long coil and lower resistance too.

cheers

[crazycut06]

OK thanks for the explanation its very interesting and makes lots of sense.

That 100uf capacitor - in "regular" motor coil circuit, why have one of these?...maybe a much smaller one to smooth the DC or somethign but 100uf is fairly large capacitor so that is somethign interesting right there -

and then that single diode is there too, so it collects "half" the sinewave of the magnet-sweep past the coil through that single diode and plops it into that 100uf cap....just as a generator coil would do with single diode into cap...

then when mosfet turns on to pulse the coil with some juice, it takes the power it needs if from that 100uf cap.

ITs totally possible to string all "odd number" of  coils together (like romero does) and pulse this whole string of coils against a rotor of even-number of magnets - I have done this a lot actually - and you will have a decent motor running like this....

so your theory seems to be then;  that romero pulses his whole string of gernator coils at once from that  "2nd" halleffect-transistor coil circuit....it only collects from half of the sinewave too - via that single diode - and the other half of sinewave becaomes a free-push too, since it has those "regauaging/backing" magnets behind the cores....

so there is "no lenz" since the gernator coils are busy getting pulsed in a motor-mode on both sides of sinewave that the magnet sweeping past the coil creates (one side pulsed in motor-mode from cap and mosfet,other side from "pulsed" from backing magnet)

the only time has to do any work that could possibly create a slow-down  is the filling of that 100uf DC cap and that is fairly easy if  you find good size cap that fills up non-reflective and also has enough oomph at discharge to move the magnet (100uf)....

this also backs up Hector's theory that is "all"  from the "reverse diode" in the motor coil circuit, the looping result.....


Hi all,

Thanks for the good explanation Dougk!

I beleive that the small magnets on the side of the rotor is placed in line with the big magnets, so that every time the big magnets are passing the generator coils at the same time the small magnets triggering the mosfets to short the coil, thus lenzless and a speed up effect pushing the rotor away from the coils, plus more voltage from the generator output!!!  clever! has anyone tried this? or can confirm if this is really the secret of romero's looping?

[chalamadad]

Hey Kone,

take another look at the driver circuit in Romeros video. I think it might be a little different from the schematic. There is this yellow thing there which I think might be an AC cap. From the coil shorting thread I think it's 0.47µF, 200 and then some Volts. You guys were talking about AC cap acting as high pass filter to catch the spikes w/o affecting the rotor speed. How and where would that cap have to be connected?

Thanks,
Chal

[konehead]

Hi Chal

in that schematic drawing it shows the cap to be an AC type, as it is drawn wiht two striaght lines and DC type has curved line under straight line...But Marisuivic says its a DC type he used in his video (Marisuvics)....

I'm not sure where to look for the "yellow thing" you noticed that might be an AC cap in Romero's video and which video to look at ... but like I mentioned, he does have an AC cap in his schematic, not a DC one.

An AC cap "in series" will cut lenz law lugging of rotor down to nothing, but it will also make the large DC cap (connects to load DC cap)  fill very very slow too so you have to find right uf value that cuts down the lenz lugging somewhat but still lets the DC cap fill fairly quick.

Ron P did a whole bunch of tests a few months ago here, and he found that for what he was testing out, there was a very particular UF value that worked way better than the rest...so this is something that will need to be tuned/expereimented with for whatever is happening....

Basically you hook up the AC cap with one lead on one of the coil leads, and other lead to one of the AC legs of FWBR like that;

or if single diode is being used to rectify coil into DC cap, then the AC cap goes between a coil-lead and that diode...

you can put the AC cap on one lead of the coil all on "its own" too if you want to do it like that, so that the other lead of the coil goes to the diode

also you can use two AC caps in series also, and have each lead of the coil have an AC cap on it - this makes things look better on scope I remember for coil shorting but doesnt seem to realy help performance that much ("performance" being how fast a cap fills up)
- but then again that test was peak coil-shorting coils, and for just taking power out "straight" from coil into cap, then maybe two in-series AC caps, one on each coil-lead would be better than just one it would be simple to try all three ways...