Inrunner Brushless

Posted on | March 13, 2009 | 4 Comments

Inrunner Brushless

where can i learn how to wind an electric motor online?

im looking to learn how to wire a permanent magnet brushless inrunner motor, where can i learn what size copper wires at what lengths & how to wind them properly for my specific application?

Briefly, for the same motor, the torque is related to the current, which is determined from wire tables for the wire thickness and the allowed temperature rise for the insulation and magnets. The speed is determined by the voltage which depends on the number of turns.

Votage x current = electrical power. Speed x torque = mechanical power. Both are measured in watts.

It is likely there are too many unknowns for your purpose, but if it is already wound to a known specification, you could use the existing wires to adjust the parameters as above. The power could be the same with a different voltage and current. Measure the wire length, and the wire diameter with a micrometer. Rewind them and connect them in exactly the same way. Consider that the new wire has to fit in the same space. I have seen some articles on using video recorder motors as a small generator - see the link, which might help you in some way, and also look up video recorder motors..

I was able to wind a 240V shaded pole motor to 24 volts this way. It is probably better to buy a motor and controller that meets your specification and then adapt the supply to suit. The motor you are talking about will probably have 3 phases, and needs an appropriate electronic controller for the new voltage and current.

parkfun SCOUT with Inrunner Brushless motor

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