Hey Chamaladad

I tried out the expeirment you did last week with the FWBR over a pair of coils in series, with the extra wire connecting the midpoint-connection of the two coils on one of the AC pins of the FWBR, and then the 1 ohm resistor off the AC pin, to the IN of one of the coils and then with the scope leads over the resistor to try and get the pure sinewave you reported doing this

What I got was an "AC" sinewave you could say, but not that good of one - it's sort of al slanted to one side, not symmetrical looking phases like a pure sinewave would look like.
I wouldnt think you could run an AC motor off this sinewave for instance...but anyways I gave it a shot...tried it buckig coils and non-bucking coils in series also paralell coils too but sinewave is always slanted...I wonder if this is what you got too?

did some backemf/recoil recovery expeirments with my pseudo-romero machine:
(4 neo magnets (tube-shaped not hockey pucks) and 5 coils each side and the coils are wound with 96 feet of 36GA (very thin) 16 strand litz wire ("heavy build varnish"/motor rated wire) coils have ferrite-tube cores
I like to run the coils in paralell (two facing) and have two pairs working as motor coils then the 3 pairs leftover as pure generator coils...
draw to motor is  100ma @ 12V input and it goes 1800rpm...dead short of one coil with ammeter gives 540ma first few seconds and voltage of coil is around 5.2V wiht no resistance so figure with resistive load 1/2 the amps and 1/2 the voltage  you will get so figure that each coil puts out approx 1.2WATTS with resistive loading...all this forgetting about any lenz-lugging of coils under load here, just some numbers on what these coils do at 1800rpm...
pulse width of motor coil is 1.2 milliseconds if anyone wants to know that 4 times a revolution, and two facing pairs of coils are fired as motor coils, so that is 8 times a revolution there is 1.2miilsecond long motor pulse....

anyways there is general description of the motor and coils - the mosfets are NPN type 20A and 500V rated, and what I am writing about after all that actually, is to tell how I pulled out the backemf/recoil into capacitor - its a lot of power - for example 220uf cap fills to 150V in a couple seconds running on that 12V intput...no reflection to motor draw at all with cap that size - -

anyways its pretty simple - using a NPN type of mosfet, you will have to have the mosfet on the ground-side of the motor coil.

so the SOURCE pin of mosfet connects to ground.

connect the negative of a DC cap to the ground too.

put shottky or whatever diode you have handy between the positive lead of the DC cap and the DRAIN pin of the mosfet.
Have the diode facing so that the cap will fill (band towards cap's postiive terminal)

that cap fills up so fast and high in voltage you wont beleive it...this is good thing for the mosfet too, since you are getting rid of that "destructive transient" spike and putting it into external cap...
Be careful of these spikes - if you touch one finger to battery terminal, and the other hand's finger to cap discharge or diode,  the big zappage with now some amps underneath it, will travel right across you chest and through your heart and you might die before you know you are dead from a short-circuit of the heart.

but forget about that; wear rubber gloves and keep one hand in pocket...pain is temporary and disgrace is permanent remember that saying eh (what I tell my dentist), and so experiment with cap UF sizes, going bigger and bigger in UF values, until you notice the motor draw bouncing up when the cap fills up after shorting the cap out to make volts in it near zero...so this will be "somewhere" around the best size of cap to use - where the draw just starts to flinch up... I suspect around 500uf or so you will see the draw go a bit up when cap fills from zero volts in it in a typical romero-machine motor coils (use analog ammeter) - but in the "working system" you might not be discharging that cap to zero, instead mabye down to 12V from 100V or whatever you decide (depends on pulse widht, load, frequency of pulses per rotation, etc etc for how much the cap drops)

What you will find is you want that cap DISCONNECTED from the mtoor coils when it hits load, otherwise, the "event" of the cap-discharge will reflect back to the motor's amp-draw and the amperage will lurch up everytime the cap connects to the load but if it is disconnected form coils, then there is nothing to worry about at all except for the cap filling up in first place, so its all free power to be had which is normally "wasted" doing nothing but shoving spikes back through your mosfet.

Also if any of you want to figure how many watts you have from a cap discharge, here is the formula:

FARADS of capacitor to be discharged / 2

multiplied by:

(voltage of capacitor before discharge SQUARED
minus the voltage of capacitor AFTER the discharge SQUARED)

then this is multiplied by the number (frequency) of discharges PER SECOND

and this give you the WATTS of a cap discharge...
(nice eh)
Thanks to Ronald (from Germany) for this formula...

Quote from: konehead on August 08, 2011, 01:30:59 AM
Hey Chamaladad

I tried out the expeirment you did last week with the FWBR over a pair of coils in series, with the extra wire connecting the midpoint-connection of the two coils on one of the AC pins of the FWBR, and then the 1 ohm resistor off the AC pin, to the IN of one of the coils and then with the scope leads over the resistor to try and get the pure sinewave you reported doing this

What I got was an "AC" sinewave you could say, but not that good of one - it's sort of al slanted to one side, not symmetrical looking phases like a pure sinewave would look like.
I wouldnt think you could run an AC motor off this sinewave for instance...but anyways I gave it a shot...tried it buckig coils and non-bucking coils in series also paralell coils too but sinewave is always slanted...I wonder if this is what you got too?

It was noticeable because I had a nice and clean sine wave.

I did another experiment. This time I added a wire from one AC leg to another AC leg of the neighbouring coilset. This gave significant rise in cap voltage.

I was also playing with the biasing magnets when I had a small DC motor connected to the FWBR of one coilset. The interesting thing was that with adding the biasing magnets two spikes were introduced and their position could be controlled by adding more or less magnets. When I tried to bring those spikes to peak level it would start jumping around peak level but would not stay at the top. I did this is in adding configuration and there was also a little increase in voltage and rotor speed. Havn't tested in cancelling mode yet, but that is next to come.

konehead,  Only got a few minutes this AM but if my quick read is right it sounds like you have OU.  12 volts x 100ma = 1 watt input and output sounds like a lot more than that.  If that's the case congrats!!  I'll re-read later but I have confidence that if anyone can do this you can. 

Quote from: konehead on August 08, 2011, 02:12:12 AM

draw to motor is  100ma @ 12V input and it goes 1800rpm...dead short of one coil with ammeter gives 540ma first few seconds and voltage of coil is around 5.2V wiht no resistance

Hi Kone,

Input 100ma @ 12V = 1.2 Watts

Output 540ma @ 5.2V = 2.8 Watts

If your readings are correct you have OU... is this so?

Thanks for sharing

Luc