Motor Controller Demo

[uraniumcompound]

To share please post plans, building, results. Your are just showing end result with findings. Thanks for sharing, but its not on the mark. Thanks

[jayhawk184]

Amazing, so im kinda confused with this, but is that creating enough power to recharge the battery and spin it, and then that becomes a continuous cycle?

[AdminOnDuty]

I'm impressed. That is a very well thought out controller. It certainly allows you a lot of control. I've used motorized autotransformers. Perhaps you could put a pot on the motor controller to set the transformer voltage ; -) then everything would be at your finger tips. Oh...and a couple of clamp on sensors also. Sounds like a great experimenters kit.

Cheers!

[Truthbeeknown]

Thanks. I did thinks of the pot on variac, but a variac with that built in is kind pricey, so this is what I have for now.... and yes, some clamps would be good for the sensors... it wasn't that expensive to build either. The most expensive part was the LCD display at about 75 bucks. The 40 pin chip was only ten.

[Truthbeeknown]

Controller is not programed to chop pulse and these switches don't have a fast enough on-off time for that at higher speeds. There are 1" by 1/2" double stacked NIB's between the sides or each stator coil on this model. SO coil are springing back with super vengeance...

[koneheadx]

coil vengeance thing happens with SHORT circuit of coil leads with switch

X20 volts from coil

X3 watts power increase with a resistive load no increase in amps just voltage

Try with new arms cloned:

stagger your 2 rotor's postioning against the coils between

have all N magnets in the 2 rotor sandwich

one rotor's mags line up wtih coils leading edge other rotor' s mags line up with coils trailing edge wil make AC no "lug" since one magnet pulls one way other  other way

[koneheadx]

Really nice!! do coils get hot? Thats lots of juice . wonder if what goes into batteries is really "watts" (voltage in caps X amps going into batteries) since battery is not really a true resitve loadT

ry swtihcing-out power tbatteries/caps with "delay-switched AC leg of FWBR "with AC legs over motor coils and DC of FWBR into load...

you might be able to increase power X 2 drop power input by 25% or so

Try AIRCORES

Wind them with aircore width about 1/2 of diameter of magnets

[Truthbeeknown]

Thanks

[megavox]

Next step is bifilar why hide it?

[Truthbeeknown]

Partially correct...

[Truthbeeknown]

Hi Kone. Thanks. I've put the output into a straight resistive load before, such as a bank of light bulbs, and yes, that is real watts. There are no output caps here, just input leveling which may not be needed. The controller has that "delay" capability for pulse out, so I should try your suggestion. I've got about six projects on the go, so I'll just have to clone myself or grow two more arms.. ;-)

[Truthbeeknown]

Thanks Kone, I may be able to try what you said on one of my other motors. But I have thought about using alternating current on it before. That's the beauty of the A and B circuit design.

[codygillespie]

Thats a good idea to adjust the pulse width. Have you tried finding your coils best resonant frequency and then chop each pulse from the halls into that best frequency? When do we get to see the new motor : )

[Truthbeeknown]

Thanks. Fine adjustment control is great.. and not with this motor but the inductance is large enough that chopping the pulse is not necessary although I have a program that we made that runs from dos with a serial cable output that allows to chop the pulse up to ten times, but it didn't seem to make much difference, but did not test too long.

[codygillespie]

I see :) I was wondering because i have seen some very good work along those lines from user Jetijs. He has been measuring current waveforms of his coils and using basically a 555 pwm circuit to a set frequency for his particular coils that insures the current form is always a ramp and never plateaus (over saturates). So at any rotor speed, he always has the least input for the most output. But im sure you are aware of all that stuff, your work has always been inspirational, keep it up : )

[Truthbeeknown]

I understand what you are saying. With a variable voltage supply hence variable frequency, it makes things a bit different than set and forget. There would need to be a feedback sensor to tell the controller how many degrees to stay on. This unit has a sensor built into it, but is not fed back in an automated way as of yet...

[koneheadx]

Maybe chopping up pulses on output of coils it would make big differnece since it should create lots more backemf in theory at least...

ALso try SHORTING coils (!!!!)

DO it right after or at peaks, with a short duty cycle,,,also try 0 line too...

COLLAPSE THAT COIL it springs back with vengeance

X20 voltage output this way doesnt affect input draw. if you find sweet spot...

[marthale7]

Sweet :)  We missed you ! Now we see you have been in the lab :)

[Truthbeeknown]

haha.. thanks, have had a major setback recently, but am moving forward.