Unfortunately I do not know the voltage the motor is rated for.
I do know it has three wires and that there are 3 pairs of windings in a star formation:
Wire n.1 --> V winding --> V1 winding --> connection to U1 and W1
Wire n.2 --> U winding --> U1 winding --> connected to V1 and W1
Wire n.3 --> W winding --> W1 winding --> connected to V1 and U1
I hope the above makes sense.
So I believe that at every x fraction of a second one wire needs to have positive voltage, one negative voltage and one neutral. And they alternate continuously to make the shaft turn?
I checked for info on half H bridges, Wikipedia has too many types and my book, robot bonanza, hardly talks about them.
I do have a controller for a brushless motor (like the one used to turn the propeller on model airplanes) I could try to use it but that thing turns fast... at least a lot more than what this motor was used for (positioning the printer head on an ink jet printer).
Any other bridge that can be adapted to work with arduino on one side and the motor on the other?
Thanks for the help!