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Forum Index : Other Stuff : F&P conversion to 12V motor

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rwithey
Newbie

Joined: 25/09/2012
Location: Australia
Posts: 1

Posted: 06:44pm 24 Sep 2012

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Dear Back Shed crew,

Can anyone direct me to information and techniques to convert F&P (or similar) to a 12V DC motor ? I want to have a brushless DC motor to drive a piston water pump directly off PV panels and have been suggested that F&P might be the way to go. Much appreciated

brucedownunder2
Guru

Joined: 14/09/2005
Location: Australia
Posts: 1548

Posted: 10:12pm 24 Sep 2012

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hello,

I've had a thought about your question ,, I don't think anybody has come up with a solution to drive a F&P yet. Either 12 volts or 240 volts . Most of us have re-organised the winding configuration to generate power .

I have a couple of those old computer drive motors that work on 12volts ,,maybe they are what you should be looking for -see them now and then on e-bay ..but hurry ,they are getting scarce.

Sorry to bring bad news ,, but some of the more intelligent members may be able to throw light on making a F&P drive from 12 volts.

Bruce

Bushboy

Tinker

Guru

Joined: 07/11/2007
Location: Australia
Posts: 1904

Posted: 02:33am 25 Sep 2012

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Yes, that F&P motor is designed to run on AC. To run on DC one would need to fit brushes & a commutator of sorts (impractical IMO) or employ electronic commutation as is done in stepper motors - difficult to say the least.
Why does it need to be a brushless motor for a water pump? Surely, there's no explosion hazard

I saw little water pumps that ran directly off a solar panel recently at an agricultural show, maybe checking that application out could source you a suitable motor for your pump.

Klaus

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