| 摘要 |
The invention relates to a control circuit for an output stage for suppressing electrical and electromagnetic interferences, comprising a signal input (I), a signal output (O) and a ground connection, in addition to two switching stages (1; 2) connected to the signal input (I) and the ground, each of which comprises a control terminal and an output terminal, wherein each switching stage (1; 2) switches from a first state, in which the potential on the output terminal follows the potential on the signal input (I), to a second state, in which the potential on the output terminal is pulled to ground when a first or second threshold value (Uin1; Uin2) is surpassed in its control terminal, wherein the control terminal (4) of the first switching stage (1) is connected to an intermediate potential mounted between the potential on the signal input (I) and the ground, the output terminal (5) of the first switching stage (1) forms the control terminal of the second switching stage (2), the output terminal of the second switching stage forms the signal output (O) of the control terminal and the threshold value (Uin1) of the first switching stage is higher than the threshold value (Uin2) of the second switching stage.
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