Device for power supply system of piezo element of spacer sensor for motor vehicle, particularly passenger car, has voltage converter that utilize electrical voltage as input voltage provided from power supply system

摘要

The device has a voltage converter (2) that utilizes an electrical voltage as an input voltage provided from a power supply system (1) of a motor vehicle. A controller (4) is provided, which is downstream to the voltage converter, with which an output voltage of the voltage converter is introduced a piezo element (6) for power supply system.