Patent ID: 7956508

Claim:
An alternating current generator for a motor vehicle, having a rotor ( 32 ) and claw pole fingers ( 44 , 45 ) that extend in the axial direction, which alternate with one another as North and South poles on the circumference of the rotor ( 32 ), and having a stator ( 36 ) that has a stator core ( 38 ) equipped with a stator winding ( 31 ) situated in slots ( 35 ) of the stator core ( 38 ), wherein the stator ( 36 ) is situated opposite the rotor ( 32 ); the stator ( 36 ) and the rotor ( 32 ) are supported by two end plates ( 33 ), with an annular coil-shaped excitation coil ( 34 ) that is mounted on the rotor ( 32 ); wherein the stator winding ( 31 ) has twelve partial phase windings ( 10 - 21 ); wherein at least two of the partial phase windings ( 10 - 21 ) have the same electrical phase position and are situated in the same slots ( 35 ) of the stator ( 36 ); wherein the partial phase windings ( 10 - 21 ) are connected to one another in series, with a phase angle of 30° electrically, consequently forming a 12-vertex ring connection ( 1 ); and wherein a number of alternating current inputs (WE) of a bridge circuit ( 3 ) of a rectifier ( 39 ) that is connected to the stator winding ( 31 ) is smaller than the number of partial phase windings ( 10 - 21 ).