Abstract: A circuit arrangement is disclosed for controlling an illuminating device, particularly light-emitting diodes, in a control device of a motor vehicle, comprised of at least one illuminating device, which is integrated in a switching circuit having a semiconductor component, and of a microprocessor, in particular having an integrated non-volatile memory, for generating a pulse-width modulated signal, whereby the pulse-width modulated signal is coupled to a control electrode of the semiconductor component, whereby the microprocessor generates at least two pulse-width modulated signals, the pulse-width modulated signals are coupled to the semiconductor component via a logical system and the logical system can be subjected to the action of an additional control signal via the microcomputer.

Abstract: A circuit arrangement is disclosed for controlling an illuminating device, particularly light-emitting diodes, in a control device of a motor vehicle, comprised of at least one illuminating device, which is integrated in a switching circuit having a semiconductor component, and of a microprocessor, in particular having an integrated non-volatile memory, for generating a pulse-width modulated signal, whereby the pulse-width modulated signal is coupled to a control electrode of the semiconductor component, whereby the microprocessor generates at least two pulse-width modulated signals, the pulse-width modulated signals are coupled to the semiconductor component via a logical system and the logical system can be subjected to the action of an additional control signal via the microcomputer.

Abstract: An optical indicator element includes a locator and function symbol that is equipped with a shared optical indicator element, with the intensity of the shared light input being adapted and regulated in brightness to the current ambient brightness. Regulation is accomplished through a PWM (pulse-width modulated) signal from a control device. The indicator element itself comprises a shared and preferably colored plastic that illuminates the locator and function symbol, with the area of the joint symbol being cleared of colored paint on the plastic. The light is preferably guided from at least one light source to the plastic by a light conductor into which the light is coupled, but this can also be accomplished by at least one light source located directly beneath the plastic.

Abstract: An optical indicator element includes a locator and function symbol that is equipped with a shared optical indicator element, with the intensity of the shared light input being adapted and regulated in brightness to the current ambient brightness. Regulation is accomplished through a PWM (pulse-width modulated) signal from a control device. The indicator element itself comprises a shared and preferably colored plastic that illuminates the locator and function symbol, with the area of the joint symbol being cleared of colored paint on the plastic. The light is preferably guided from at least one light source to the plastic by a light conductor into which the light is coupled, but this can also be accomplished by at least one light source located directly beneath the plastic.