FILTRE ATTENUATEUR DE BANDE

摘要

A band attenuator/eliminator filter (F) for the electromagnetic emissions of a brushed DC motor. This filter comprises at least one gamma filter (G) with capacitive (C1)/reactive (L1) impedance which is intended to be connected between the motor positive power supply input (M+), the motor negative power supply input (M−) and the negative terminal (B−) of the battery. The capacitive impedance (C1) is intended to be connected between the motor negative power supply input (M−) and the motor positive power supply input (M+). A reactive impedance (L2) is provided and intended to be connected in series between the motor positive power supply input (M+) and the positive terminal of the battery (B+). Application to motor vehicle windshield wiper motors.