Muller Dynamo

[Arthurs]

@all

Sadly, I don't think that I would be able to cope with a gazillion questions (llike Romero did), so I need to be careful how I say this.

I put the dynamo back on the table yesterday afternoon. Thought I would try a couple of different
things.

I can tell you that the magic happens when everything is connected.

From the first pickup coil pair, I was only getting very few millivolts. But once all 7 were connected,
the unit begins to produce real voltage and current.

It was only due to poor workmanship on my part, that sitting there watching this thing go round, I could see arcing at one of the pickup coil pair connectors. I had connected a parallel cap to each
pair using those short leads with aligator clips and one of the clips was oh so close to the next pin.

You guessed it, putting a dead short on one of the coils, the system did not slow much but the voltage and current went up .

What more can I say other than, a big thank you to Romero and the rest of you guys for
putting up with my silly and sometimes annoying posts.

I am going to try and purchase a DC-DC converter today and I promise to let you know
how it works out.

Kindest Regards, Penno (Garry)

Hi penno64
Congratulations
    All 7 coil in the bridge rectifier after the parallel?
    The stator side of the magnets are not used?
    How much speed?
    Input voltage, input current is how much?
    Output voltage, output current is how much?

    Thank you very much!

[penno64]

@Romero,

Do you think it is possible, that one of your pickup coils was shorted or close to it - caused by
your early alltempt to self loop.

I ask only as you mentioned, you nearly melted down your coils.

Penno

[maw2432]

@all

Sadly, I don't think that I would be able to cope with a gazillion questions (llike Romero did), so I need to be careful how I say this.

I put the dynamo back on the table yesterday afternoon. Thought I would try a couple of different
things.

I can tell you that the magic happens when everything is connected.

From the first pickup coil pair, I was only getting very few millivolts. But once all 7 were connected,
the unit begins to produce real voltage and current.

It was only due to poor workmanship on my part, that sitting there watching this thing go round, I could see arcing at one of the pickup coil pair connectors. I had connected a parallel cap to each
pair using those short leads with aligator clips and one of the clips was oh so close to the next pin.

You guessed it, putting a dead short on one of the coils, the system did not slow much but the voltage and current went up .

What more can I say other than, a big thank you to Romero and the rest of you guys for
putting up with my silly and sometimes annoying posts.

I am going to try and purchase a DC-DC converter today and I promise to let you know
how it works out.

Kindest Regards, Penno (Garry)

Garry,  Congratulations!!!
Looking forward to a video with the DC-DC converter and self-running. 

I am assuming you only needed just one pick-up coil shorted.   

Bill

[e2matrix]

penno,  Nice work!   For a DC-DC converter at a very nice price you might want to look at one of these: http://cgi.ebay.com/DC-DC-Converter-Board-Voltage-Regulator-Stepdown-Module-/230631229697?pt=LH_DefaultDomain_0&hash=item35b2b14901

There are other fleaBay sellers that sell this exact same item if you are not in the U.S. as that seller seems to only sell to the U.S.  It's a very efficient converter and I think one that would probably work good in this setup.  $8.99 with free shipping is a lot less than a Maplin and it's not in a plastic shell but who needs that for now.  Put it in plastic and someone will say you are hiding a battery in there

[Scorch]

I use to buy fiberglass products from them ( Heath still work there?) I live in Loveland now and there is a plastic store in Ft collins that does the same stuff. May have to try to hook up some time, I get down to Denver about once a month or so.

I don't know if anybody named Heath is there.
Just know the price was right for three machined rotors to play with.
BTW: All three rotors in the image are the same size but the camera perspective made them look different.