Method for supplying electricity to an electric motor comprising phases (u, v, w) having respective directions equally distributed in a plane transverse to an axis of rotation of the electric motor and intended to pass phase currents (i u, i v, i w) defining a current vector ( i) that originates at and is perpendicular to the axis of rotation, respectively, the current vector (i) being equal to the sum of phase vectors having as direction the respective direction of the phase (u, v, w) and as norm the value of the phase current (i u, i v, i w), the current vector (i) rotating with the rotor about the axis of rotation, the method comprising: - receipt of a setpoint current vector (i*), the setpoint phase currents (i u *, i v *, i w *) being sinusoidal, - switched connection of the phases (u, v, w) to a voltage source so as to make the current vector ( i) rotate, the method being characterized in that the switched connection of the phases (u, v, w) comprises, during at least one revolution of the current vector ( i) about the axis of rotation, for each of one or more phases (u, v, 'w): - over part of the revolution, disconnection of the phase (u, v, w) from the voltage source to open-circuit the phase (u, v, w), and - over the rest of the revolution, switched connection of the phase (u, v, w) to the voltage source; and in that the revolution of the vector (i) about the axis of rotation is subdivided into angular sectors (S1 u, S2 u, S1 v, S2 v, S1 w, S2 w) of same angle centred on respective perpendiculars (P u, P v, P W) to the direction of the phases (u, v, w), said perpendiculars (P u, P v, P w) belonging to an angular sector in which the phase (u, v, w) is disconnected from the voltage source, and in that said method further comprises, to disconnect each of at least one phase (u, v, w) over part of one revolution and to switchedly connect each of these one or more phases (u, v, w) over the rest of the revolution: - receipt of measurements (iu, iv, iw) of the phase currents, or receipt of a setpoint current vector ( i *), - determination of whether the current vector (i) corresponding to the measured phase currents (iu, iv, iw) belongs to at least one predetermined angular sector associated with a phase (u, v, w), or respectively determination of whether the setpoint current vector ( i *) belongs to at least one predetermined angular sector associated with a phase (u, v, w), - disconnection (314; 804, 318, 320) of each phase (u, v, w) associated with the one or more predetermined angular sectors to which the current vector (i; i *) belongs, and - switched connection (314; 804, 318, 320) of the one or more other phases. - receipt of a setpoint current vector (i*), the setpoint phase currents (i u *, i v *, i w *) being sinusoidal, - switched connection of the phases (u, v, w) to a voltage source so as to make the current vector ( i) rotate, - over part of the revolution, disconnection of the phase (u, v, w) from the voltage source to open-circuit the phase (u, v, w), and - over the rest of the revolution, switched connection of the phase (u, v, w) to the voltage source; and in that the revolution of the vector (i) about the axis of rotation is subdivided into angular sectors (S1 u, S2 u, S1 v, S2 v, S1 w, S2 w) of same angle centred on respective perpendiculars (P u, P v, P W) to the direction of the phases (u, v, w), said perpendiculars (P u, P v, P w) belonging to an angular sector in which the phase (u, v, w) is disconnected from the voltage source, and in that said method further comprises, to disconnect each of at least one phase (u, v, w) over part of one revolution and to switchedly connect each of these one or more phases (u, v, w) over the rest of the revolution: - receipt of measurements (iu, iv, iw) of the phase currents, or receipt of a setpoint current vector ( i *), - determination of whether the current vector (i) corresponding to the measured phase currents (iu, iv, iw) belongs to at least one predetermined angular sector associated with a phase (u, v, w), or respectively determination of whether the setpoint current vector ( i *) belongs to at least one predetermined angular sector associated with a phase (u, v, w), - disconnection (314; 804, 318, 320) of each phase (u, v, w) associated with the one or more predetermined angular sectors to which the current vector (i; i *) belongs, and - switched connection (314; 804, 318, 320) of the one or more other phases. - receipt of measurements (iu, iv, iw) of the phase currents, or receipt of a setpoint current vector ( i *), - determination of whether the current vector (i) corresponding to the measured phase currents (iu, iv, iw) belongs to at least one predetermined angular sector associated with a phase (u, v, w), or respectively determination of whether the setpoint current vector ( i *) belongs to at least one predetermined angular sector associated with a phase (u, v, w), - disconnection (314; 804, 318, 320) of each phase (u, v, w) associated with the one or more predetermined angular sectors to which the current vector (i; i *) belongs, and - switched connection (314; 804, 318, 320) of the one or more other phases.