Abstract: A pulsating current electromotor without commutator comprises a permanent magnet type or electromagnetic type rotor keyed on a rotating shaft and having the poles diametrically opposite to one another relative to the shaft on which they extend for the greater part of its circumference. The poles have opposite polarity with respect to one another and face a stator member which is formed by a substantially cylindrical hollow body, within which the rotor is arranged. Formed in the stator body are stator slots uniformly spaced from one another, each of which is arranged to contain stator bifilar windings which, at the outlet from each slot are directed half in one direction and half in the opposite direction. Further provided are optical detector systems detecting the angular position of the rotor, connected to electronic controlling circuits which control distribution members for distributing the power to the stator windings as a function of the angular displacements of the rotor.