摘要:
The invention relates to a method and a device for monitoring at least one output stage (1), which is controlled by a microcontroller ( mu C) using an input signal (2) with any pulse duty factor. The output signal (3) of the output stage (1) is averaged using an electric circuit (4) and compared with a target value (5) calculated from the input signal (2) of the output stage. An error in the output stage (1) is diagnosed if the averaged value (6) deviates from the calculated target value (5).