the Otherpower.com Discussion Board || Comments PMDC motor as a generator for low power app.

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PMDC motor as a generator for low power app. | 8 comments (8 topical, editorial)

Re: Small PMDC motor (3.00 / 0) (#1)
by Todd a on Thu Aug 7th, 2008 at 08:19:19 PM MST
(User Info)

I do not care for most PM DC motors as they require a much higher RPM. Now with your listed as so low it likely has a gear box (planetary gears or something like that). These will add some resistance and massively increase the torque required to turn it. I am building my own generator. The flat magnet plates with wire coils are much better for low RPM power.

Re: Small PMDC motor (3.00 / 0) (#3)
by mystiquesbs (mystiquesbs@gmail,com) on Fri Aug 8th, 2008 at 05:18:57 AM MST
(User Info)

Thanks for your comments :) So you recommend staying away from PMDC motors and looking at something else such as home built PMA's?

the shaft that the prop is attached to is 100mm in diameter. Do you think it would be viable to create a PMA around this and run the LED's from this with regulator/rectifier circuitry in between?

[ Parent ]

PMDC motor as a generator for low power app. | 8 comments (8 topical, 0 editorial)

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