Voltage-side supply switch-off circuit e.g. for electrohydraulic systems in motor vehicles, has monitoring circuit coupled via protective device to detect its state and trigger switch-off transistor if at least one defined parameter occurs

摘要

The circuit has a central electrical supply, a protective element (312) connected to one side of the central supply, a switch-off transistor (314) circuit connected to the earth side of the protective element for opening the protective element by applying a current exceeding its maximum rated current and a monitoring circuit coupled via the protective device to detect the state of the protective device and trigger the transistor if at least one defined parameter occurs AN Independent claim is also included for a method of protecting an electrohydraulic system.