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Author Topic: help needed  (Read 801 times)

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miken

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help needed
« on: September 25, 2008, 03:26:14 PM »
i have a 90volt motor 1800 rpms if i use it for a wind mill how can i drop the out put voltage to 12vdc when the motor will put out from 0 to 90vdc. any help greatly appreciated. ktm958@msn.com
« Last Edit: September 25, 2008, 03:26:14 PM by (unknown) »
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Tritium

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Re: help needed
« Reply #1 on: September 25, 2008, 09:57:41 AM »
When you hook it up to a battery the battery will clamp the voltage to that of the battery until it is fully charged then you will need a dump load and controller to keep the battery from "overfilling". I doubt that you will run at 1800 rpm, more likely about 1/4th of that speed (450 rpm) which will give you about 22.5vdc open circuit. Should be good for a 12v system.


Thurmond

« Last Edit: September 25, 2008, 09:57:41 AM by Tritium »
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miken

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Re: help needed
« Reply #2 on: September 25, 2008, 12:49:53 PM »
thank you very much i will give it a shot.
« Last Edit: September 25, 2008, 12:49:53 PM by miken »
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