Circuit arrangement, has monitoring unit generating response impulse if output voltage of secure output stage falls below preset value or if output voltage of secure output stage falls below supply voltage of sensor about preset value

摘要

The arrangement has a monitoring unit (11) for monitoring an output voltage of a secure output stage (3), where the monitoring unit is activatable in coincidence to the sampling of the secure output stage. The monitoring unit generates a response impulse if the output voltage of the secure output stage falls below a predetermined value or a reference voltage or if the output voltage of the secure output stage falls below a supply voltage of a sensor (1) about a predetermined value. An independent claim is also included for a method for monitoring and checking the operational reliability of a circuit arrangement.