Whoa! 6" would ONLY be for the first layer of windings, and it would increase each subsiquent layer. The circumfirence of my coils is 11 inches, making the...
depends on how tight your coils are, but you are probably very close. I was going for the mean. Steve Spence http://www.green-trust.org Free People Search ...
can any one advice me how can i get more voltage from my alternator, i made a alternator with using of wire # 22 and 85 turns per coile(10 coils)Â and same...
You should have 9 coils, 3 series sets in parallel. You have phase cancellation, as two phases are being triggered at the same time. the 12:9 ratio is...
i built a alternator with wire # 22 and 85 turns X 10 coils and i used 12 nos magnets same size as coils but i produced only 1 volt on hundred rpm , so how i...
three coils in series with that many turns will make about 25 volts at 650 rpm. You need 3 sets of those and parallel the sets. that's 9 coils not 10. Steve...
               Hi Steve and All,                         I've never been able to figure out why of 9coils to 12...
There's no radical peaks in 3 phase, and once rectified, it's pretty stable. if the coils and magnets were the same, then all coils would be triggered at the...
Read hugh's axial flux document in the files section. cogging is eliminated by not having iron cores. Steve Spence http://www.green-trust.org Free People...
                 Hi Steve and All,                               I looked at Hugh's pdf in the files section...
The AF is not designed for only battery charging, the design is used and so popular because it lends itself to manipulation for different voltages and loads. ...
                  Hi Andrew and All,                       Like all fixed field alts as long as you limit the RPM you...
When the 3 phase is rectified you have 6 pulses approx. 60 degrees apart that are overlapping so you get a relatively smooth pulsating DC for each alternator...
Hi,  I couldn't open your larger pictures but the reason there is a 3 to 4 ratio of coils to magnets is so that several coils get "lit up" at the exact...
Hi,  Very sticky question. If you can eliminate the inside leg of the coil and make it triangular you can eliminate perhaps 1 inch of wire per turn which...
Yeah, John, that's the shape I was working on for my "toy", the idea to have the main part of the coil cross the magnet parallel to the "line" of the magnet. ...
The magnets need to pass the coil wires at roughly 90 degree angles for the best output. Oval coils will work if the straight part of the coil is at least as...
Hi,  Do you still have access to your coil leads? Are they all wired in series? Is every other one backwards or all they all wound the same? If you...
we added a temperature sensor in our last coil pack, and pack temperatures ran about 20 degrees higher than ambient in 20 mph winds, with batteries at 80 SOC. ...
Hi Jerry -- We explain it with diagrams in our book. Go to books.google.com and search for Homebrew Wind Power. Then search inside the book for 'number of...
Hi Jonathan & Jerry -- The first issue with direct grid tying an axial flux alternator is (as Jerry pointed out) the widely variable RPM when using wind power...
Muhammed, you don't provide enough information to answer your question. Hugh Piggott's older 5-phase turbine used 10 coils and 10 magnets. But for 3 phase, you...
Hi Dan, Just some more thoughts on the matter. I have it under good authority that the sunny boy is nothing more then a windy boy with different firmware and...
Hi Dan and All, Thanks Dan and others on and off list for your help. I think I'm getting it now with the diagrams. Excellent book Dan. Read about 20 pages and...
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