Basic Bedin circuit

innovation_station · April 30, 2010, 08:28:51 PM

good luck !

ist

resonanceman · April 30, 2010, 10:09:42 PM

Quote from: Groundloop on April 30, 2010, 07:16:23 PM
@resonanceman,

The neon bulb is there to protect the transistor
against over voltage. If you disconnect the charge
battery then there is a high risk of blowing the
transistor.

The small bulb is like a RPM regulator on the motor.
The resistance in the bulb will vary with the
transistor base current. When the rpm increase
then the base current will be higher and the bulb
will "burn" more energy and the end result is that
the base current goes down again, thus keeping
the RPM stable.

Your JT experience will help. If you motor will not run
then just reverse one of the coils. Don't use Neos
on the rotor, use ferrite magnets. All north out. Also
get the coil as close to the magnets as possible.
A good rotor is the front wheel of a bicycle. Remove
the rubber tire and glue or use strong tape to hold
the magnets onto the wheel.

Good luck with your motor.

G.

Groundloop

Thanks for the advice .......I will follow it.............well for a while at least.

Well actually probably until I get a rotor spinning.

I am here to experment .........I have LOTS of ideas......some of them are things I wanted to do with a JT but didn't have the power.

Just curious do you know why NEOs should not be used?
I am thinking that they are to powerful and make it hard to not over rev the rotor.
If that is the case I want to use NEOs as soon as possible.
I was planning on making a rotor with N and S up.......( EDIT secondary rotor this is not the primary bedini rotor ) and putting a few coils around it.,....... this should make a fairly normal alternator....... It should help limit speed similar to the way you described the grain of wheat bulb limiting it.

One thing I want to avoid is cutting the input to limit speed.
I want to limit speed by extracting power.

I have added an attachment ... i don't remember where I found it but it looks interesting.........except the reed switch part........reed switches suck when it comes to reliability......
Page 2 has a scope shot of a signal......I want to make pulses like that with no reed switch.

I also wonder why no one is using both poles of the magnets........other than the over rev problem.......
I read that black iron oxide is as close as we can get to ferrite .......I have some on the way.......my epoxy resin got here 2 days ago.
I think it will make a better core than nails........it may take some experimenting to get the right density.
I plan on making a C core and trying to tap both poles.......with luck I should come close to doubling the power out.

I also plan on trying to make a large toroid for JTs.......but ......it is iron powder.........so I will be lucky to make one as good as I could buy.........but I can make them bigger........that may have some value.

gary

innovation_station · April 30, 2010, 10:33:28 PM

have fun ..

waste of time

ist !

resonanceman · April 30, 2010, 10:47:16 PM

Quote from: innovation_station on April 30, 2010, 08:28:51 PM
gary do you want to build a motor?

if you do i will work with you public i have a fully duplicatable design that is self running ..

and if you want to build it i will build it with you public ..

useing a basic bedini controller but my motor is NO BEDINI LOL

its wayyyyyyyy better ...

regards ..

just push the thing ... : )

find some old vcrs ...

you can build it for cents ..

ist

the axel in this design is stationary only the wheel spins has 4 vcr bearings in it .. verry high rpm like 30 000 plus

with this design you can even build the rotor of wood ..

and groundloop

HAVE YOU EVER BUILT A MOTOR WITH NEOS ..? IF THE ANSWER IS NO WHO ARE YOU TO SAY DONT USE THEM ?

btw gl a bicycle wheel is USELESS! I RECCOMEND A SMALL WHEEL ... speed ! you want high volt high freq from your aux coils then rectify it .. to a cap

i say go CORELESS IF YOU HAVE ENOUGH WIRE ...

PS forget the reed switch they just blow up .. or wear out in time .. : )

never mind the low voltage welding incidents you will have and suddenly weld the reed contacts ....

if done right you can do it with an aa ... a welding incident that is ....

and if you mount the rotor vertical .. gravity is on your side ....

hummmmmmm

IST

I have seen a bedini made with a VCR head on U tube........it was very fast.

I have a pretty good idea of what I want to end up with.

I am shooting for a fairly small multi rotor design
I am thinking of using a plastic tube for an outer housing........PVC water pipe ........or acrylic tube if you have the money and want to show it off.

I am thinking if the rotors are well made and on a keyed shaft....... I only need one trigger rotor.......... I can add as many power rotors as I need.........of course I will need a alternator rotor or 2 ( to keep the speed in check ) ........ I am thinking there will probably be a set ratio of power rotors to alternator rotors........
The fan motor mods showed me that you can use separate coils .

going coreless is an interesting idea........ it seems with a Newman motor the idea is to mostly make big coils..... what about one magnet on a rotor........and one coil on each side of the rotor?
The magnet would have to have N on one rotor face and S on the other.......but I was planning on doing that anyway.......for many reasons.
If the coils were about 3/4 of the size of the rotor .........but one side of each placed near the Axel it might just work like a Newman...... the coils could be pretty thick
The coils could also be closer to the rotor than with a normal Newman.

I am thinking that a coil that goes around the shaft.......then just past the outer edge of he rotor disk would be ideal.... squeezing the coil into a line ....... then putting a line of magnets from the center of the rotor disk out to the edge.......

I agree on the higher speed thing............but I don't have any VCRs laying around.........and I don't plan on anything like 30000 RPM
In general a small disk turns faster without flying apart....... I was thinking 6 in dia max........4 in may be better.
It depends on what parts I find to make it.

gary

innovation_station · April 30, 2010, 10:53:55 PM

play with it see what ya get ..

i just released my self running unit today ..

: )

it is also a neo zap switcher/ ampliflyer too

lol

has 0 transistors ... just push it ...

lmfao!

ist

look at this super basic toy .. lol

http://www.youtube.com/watch?v=wf3MH1Bb3uU

: )

notice the sound of my motor toward the end of the demo ...... listen hard to the sound ...

i just love that video lol

i show how to make your motor accelerate ... while under load .. hummmmm

the load can be the motor its self ... hummm it climbs in rpm while makeing a sparkie sound .. hummm it is feeding back after the transistor ... HUMMMM A GAIN ....

via burnt out 33 ohm .. wich i made glow red hot in the demo b4 that one : )