I made up another coil ring today, using thinner core wire, less passes over the face, but more runs and got a 15% increase in power output.  Now I could easily add more wire, 18 more magnets and way more rpm to the equation.  For an AC output on my second try I think is pretty good.  The good thing about it, is I can use it as a motor too.

Hello,

could you explain your set up and the observations you have till now?

Regards
Baroutologos

Cranky:  Dunno if yer being funny, but.......  32swg 0.280mm.  Light orange.

EXACTLY WHAT IS GOING TO BE DONE (WELL ALMOST BUT WITH A TWIST) ... BUT AS I SAID SPECULATION OR IDEA MANIFESTATION IS MUCH FASTER THAN PHYSICAL MANIFESTATION - SINCE WE HAD TO GET THE COILS RIGHT AS THE FIRST STEP.

ALSO BUILDING A MOTOR IS NOT ON MY WISH LIST OF THINGS TO DO... BUT IT LOOKS LIKE IT MUST BE DONE NOW. 


BTW - THAT IS A LAMINATED STATOR CORE w/ A TOROID AS THE BACKING PLATE AND EIGHT SOLENOID FINGERS.

CHEERS
T

P.S.
THE TWIST

WE WILL USE THE E OR TOROID DESIGN WHERE WE EMPLOY AN INNER AND AN OUTER HV COIL.

THE INNER COIL WILL BE THE MOTOR COIL (UP TO A POINT) AND A GNERATOR COIL LATER ON... HOWEVER IN BOTH CASES WE WILL BE COLLECTING THE INNER COILS' DISCHARGED MAGNETIC FIELD INTO THE OUTER CORE LEG AND USING THIS TO BOOST UP THE GENERATOR OUTPUT AT ALL TIMES.    FUN TIMES!   

Lol, stop changing your design on me and I'll have a SVM PWM controller for you in no time. This recent change looks like it has alot of potential, those transformers you added in the last video almost gave me an aneurysm and I am glad to see them gone, ha.

Ok, so E-Coil config, with 2 coils. Both coils are HV coils now, no more HC coils?
So in my mind the heat concern just increased about a thousand fold, but thats alright, we'll work it out.
For just driving the HV (interior) coil) what sort of power are we going to deal with? We can probably go up to 400 volts fairly easily, without getting into really fancy stuff, do you think that will be sufficient?

There'll be a ton of trial and error while we figure out the PWM frequency, but I can just program that into the chip and figure out which works best, cycle through different frequencies until we find the golden one.

The flux density analysis will probably help us with this quite a bit.

anyway its back to the drawing board for me, the staggered magnet placement totally destroys my SVM tables so I'm going to have to think up something elegant to deal with it.

ugh, i've got to bite the bullet and just make one and start running tests, my machinest buddy is chomping at the bit to make me one of these rotors, any suggestions as to which I should get made?

Cheers
-Cole

IT DEPENDS ON THE MAGNET STRENGHT USED - BUT I WAS ABLE TO ROTATE THE ROTOR WITH JUST 5 VOLTS FROM A FUNCTION GENERATOR YESTERDAY.

Wow... What else can I say... Function generators put out squat for power output.

CAN'T WE USE A REED SWITCH CONNECTED TO A TRANSISTOR?

Life expectancy of a reed switch at high RPMs is very short (around minutes) and the delay time is large. HALL devices are much better. Better yet use the output of your coil to drive the electronics that drive the driver coil. Think Magneto effect used on a small engine...

MAKE THE I_RON ROTOR PERHAPS IF YOU PM HIM HE MIGHT SEND YOU THE BLUEPRINTS?

Hummm.. I think maybe I will do that.

THE TRANSFORMERS ARE THERE TO STAY! - MY HARD DRIVING WHIPPERSNAPPER. UNLESS OF COURSE GOTOLUC SETS
ME UP WITH SOME CAPACITORS TO DUMP THE HIGH VOLTAGE INTO... INSTEAD OF THE STEPDOWN TRANSFORMER.

I would definitely think a bridge rectifier and a big cap would be much better, although I'm not sure, the outputs of the coils, whether rectified or straight sinusoidal the energies need to be combined somehow, and I'm not sure whats the best way to do that. With the old magnet pattern the phases would be offset by a constant amount, which would allow them to be combined, modulated almost, then rectified. The staggered magnets are warping my noodle even trying to consider this.

RIGHT AND SOMETIMES THE INNER HV COIL WILL BE USED AS MOTOR COIL(S)...

Indeed, but in order to get the sort of RPM's required to achieve the inductance becoming capacitance affect were going to need a fairly significant magnetic field density, which is a function of current, not voltage.

NO HEAT - WE ARE DEALING WITH QUICK CURRENT PULSES NOT PROLONGED CURRENT FLOW (PRODUCING HEAT).

As frequency increases the cooldown periods between those pulses is going to approach 0.

IT DEPENDS ON THE MAGNET STRENGHT USED - BUT I WAS ABLE TO ROTATE THE ROTOR WITH JUST 5 VOLTS FROM A FUNCTION GENERATOR YESTERDAY.

Did you just hook a square wave across the coil?

CAN'T WE USE A REED SWITCH CONNECTED TO A TRANSISTOR?

Like some sort of rotary encoder?  I would think that would work with a N S N S arrangement but you have a NNSS arrangement.

So if the magnet trips the hall effect sensor, current can flow through a fet into the inner HV coil and repulse or attract the coil, then it turns off, hmm. Sort of a pulsing motor drive, and having the direct linkage would allow the frequency of pulsing to increase with the angular velocity.

Ok, let me try to work this out imagining the setup with just one coil.

YOU MEAN THE PROGRAM FROM YOUR BUDDIES AT SUNOCO?

I am not affiliated with Sunoco in any way (disclaimer)
But indeed, I know of what you speak, and when we get the magnetic flux density analysis for the entire range of operation we'll know alot better what exactly is going on. I have a nagging feeling in my head that the flux from the first coil will affect the outside coil more than the rotor. Arghh no way to know until experimenting.

And if the spinning magnets are already inducing a current into the inner coil, are we going to need to, um, like, flush out the current, in order to be able to set up our own flux lines?

Dammit, I'm confusing myself.

MAKE THE I_RON ROTOR PERHAPS IF YOU PM HIM HE MIGHT SEND YOU THE BLUEPRINTS?


Ok, will do. Symmetrical magnets are way more my style.

CHEERS
T

I think you are still confused. The rotor is still the same one that Thane has been using. The drawings that Thane showed a few post back are of his new pickup coil-core arrangement not a new rotor arrangement.. I was confused about that as well.

well thats good news, that means that the SVM tables just need to be custom, finding the values will be a pain but it does not require anything above and beyond straight SVM.

Thanks for the heads up, mate. Appreciated.

I'm hoping to have a fully working prototype within the next couple of weeks. I'm hoping to get it to sustain a set speed.  It's running a principal close to Thanes, but it's quite different in a lot of ways.