Go to Otherpower.com Home Page Go to Forcefield Shopping Cart Go to Wondermagnet.com Home Page
Front Page - [Homebrewed Electricity-- (wind) (solar) (hydro) (steam) (controls) (storage) (mechanical)] - Classifieds - Site News
Everything - Newbies - [Remote Living-- (housing) (heat) (light) (water)] - Reviews - Diaries - Our Products
Small-Town windmill makes good, lights LED | 9 comments (9 topical)
Re: Small-Town windmill makes good, lights LED (3.00 / 0) (#4)
by dhagerty on Sun Mar 13, 2005 at 09:36:50 PM MST

While I don't know what I'm getting out of it, amperage-wise, I doubt it's a lot.  I put 2 LEDs on it, and it seemed to visibly dim both.  LEDs aren't exactly high-amperage devices :-).  I like the circuit that BTH posted, and I believe I'll pinch it.  I'm also going to have to rewind my stator for other reasons.  At that time, I may buy me some real  magnets rather than the little cheesy ones I'm using here.

                                                                                         Dave


[ Parent ]



Re: Small-Town windmill makes good, lights LED (3.00 / 0) (#5)
by hiker on Wed Mar 16, 2005 at 02:46:13 PM MST

try a little dual rotor on your next try--this one lights up a 12v 50watt headlight real bright -using 6 mags per rotor--with 6 coils -single phase-ceramic mags..
hooked up a 400 watt 28volt landing light to it just for the heck of it --and was surprized it powered up--on the dim side ..


WILD IN ALASKA
[ Parent ]


Re: Small-Town windmill makes good, lights LED (3.00 / 0) (#6)
by Vernon on Sat Mar 19, 2005 at 09:08:09 AM MST



This is my idea on a wind generator in simple schematic form. The rotor is a 1/4 inch thick steel disk with milled depressions in which the round magnets are attached with a light press fit and epoxy. The schematic shows two but as many pairs of round magnets as desired can be used. The stator consists of a laminated bar of transformer steel obtained perhaps from a junk distribution transformer, it could also be made of a number of mild steel welding rods bound together in some way. The coils are wound around the stator. Using wood, rubber feet or other non magnetic material in the flux path greatly reduces the flux and the voltage obtained. Poles should be arranged to alternate the direction of flux through the stator with the flux lines going through the center of the winding as shown. A drawback of this concept is the parking of the magnets over the stator and high starting torque ... since it is decorative "propping" to get it going in light wind is not a huge problem. Once rotating the inertia of the steel disk and blades will carry it through the "cogging" point.

[ Parent ]



Small-Town windmill makes good, lights LED | 9 comments (9 topical)

Menu
· create account
· How to use the board
· FAQs
· search the board
· Google search the board

Login
Make a new account
Username:
Password:

Powered by Scoop
You must be a registered user to post here. It's easy and free, and the link is on the upper right side of your page.
All trademarks and copyrights on this page are owned by their respective companies. Postings are owned by the poster, but may be deleted or moved at the ADMIN's sole discretion. The Rest © 2009 Forcefield.
You can Email the board ADMIN here. PLEASE include the username you signed up with!