Abstract: A communication system for a technical device, in particular for a motor vehicle, contains a plurality of functional systems that are used to monitor and control various functions of the technical device. The functional systems each contain an evaluation unit and at least one functional component that is coupled to the evaluation unit in order to exchange signals. At least one of the functional systems is embodied such that it can detect a functional disturbance and/or a functional failure of at least one of the other functional systems, and in the event of a functional disturbance and/or a functional failure of the at least one other functional system it takes on at least part of the functionality of the at least one other functional systems.

Abstract: The invention relates to a method for switching a semi-conductor circuit breaker by means of which the resistance of the breaker gap of the semi-conductor circuit breaker is controlled by a control voltage (Vst), such that the power loss (Pist) from the circuit breaker does not exceed a predetermined setpoint (Psoll). The invention also relates to a device for carrying out said method wherein a transfer gate, which is controlled by a charge pump, is used as a semi-conductor circuit breaker.

Abstract: The invention relates to a method for switching a semi-conductor circuit breaker by means of which the resistance of the breaker gap of the semi-conductor circuit breaker is controlled by a control voltage (Vst), such that the power loss (Pist) from the circuit breaker does not exceed a predetermined setpoint (Psoll). The invention also relates to a device for carrying out said method wherein a transfer gate, which is controlled by a charge pump, is used as a semi-conductor circuit breaker.