| 摘要 |
The invention relates to a device (1) for operating a heating apparatus (2) of a gas sensor (3), in particular a lambda sensor (4), of a motor vehicle, having at least one power output stage (5, 6) which makes available an operating current and is/can be operatively connected to the heating apparatus (2). In this context there is provision that at least two power output stages which are connected in parallel with one another are provided, wherein a first of the power output stages (5) is switched off when its operating current reaches a predefinable current value, and a second of the power output stages (6) limits its operating current to a predefinable maximum value. In addition, the invention relates to a method. |
