Abstract: A DC-excited brushed motor includes a commutation system with a commutator with vanes uniformly distributed in a circumferential direction and at least two brushes which interact with the vanes, to connect the brushes to a DC voltage network via connecting leads. The commutation system is in a metal housing of the motor, and the motor includes an interference suppressor for the commutation system including an interference suppression choke and a capacitor for each connection lead, and the connection leads include an EMC shield between a connection for the respective capacitor and a housing passage through the metal housing of the motor.

Abstract: An asymmetrical, direct current excited brushed motor may include a motor shaft; a commutator with a number of lamellae arranged in the circumferential direction; an armature with a number of armature teeth and armature grooves, where anchor windings are arranged in the armature grooves to form coils; at least one brush pair for supplying the coils with power, including two brushes contacting the lamellae; and a number n of permanent magnets in the stator to form a magnetic field, where n is a multiple of 2 and n>2, and where the number of armature teeth is unequal to a multiple of n. A position angle between the brushes of a brush pair is equal to or less than 90° and unequal to a multiple of the position angle between two directly consecutive lamellae.