Quote from: xenomorphlabs on July 24, 2011, 08:56:48 PM
So i think you need to go high in frequency or double your rotor magnets
as to need having to raise the inductance which would also raise the DC resistance of the coil to reach the correct resonance frequency.

It's all a big interdependence between L C R and the resulting Q

As far as the interdependence betwen L C R and the resulting Q goes:  Agreed.

As far as going high in frequency... No shit?  Do you think!?!

Doubling the rotor mags has the negative effect of cramming the Vout wave forms together, imo.  So you will lose max Vout ptp.  Is that a tradeoff or not imprtant?

This is just conjecture.  Please continue, Professor.

M.

@mondrasek

If you have three gen coil pairs and your wheel is driven by a motor, then all you are really interested in is the output section. Have you tried with your top gen coils in series looped, bottom gen coils in series looped, one wire from each goes to the AC side of only one fwbr. I am very curious for anyone to try this since you will have three series coils in different phases which AC really does not like. That kind of havoc may be very interesting to test.

wattsup

So we need to use as many rotor poles as possible to increase the frequency and make a coil to have high impedance at that frequency? Also, do we need to use a capacitor to resonate with the coil at that frequency, thus giving us the out of phase current (vars) that we want? Sounds reasonable to me.

this coil configuration has occupied my mind for a while.
gonna start coiling a pair (this stuff takes me a while) of these
but i'm afraid the ferrite i have doesn't have the polar domain alignments that may be more desirable.
but maybe this is where the back bias magnets come into play where this presets the domain walls in a more elongated way.

the picture is meant to replace the thousand words but i'm looking at more wraps on the outer core windings.

what i will be looking for is the polarity flipping - similar to bi-metal strips creating a snap action effect.
in this case its 2 types of magnetic materials to create a magnetic snap action.

take care.

nap

Those last two posts came along just at the right time, and even make sense to me...and I'm still a long way from the top of the learning curve.

Regards...