Direct current measurement device for battery operation controlling device, has electrical circuit with inductor and node that distributes predetermined fraction of current in branch formed by secondary coil of transformer

摘要

The device has an electrical circuit (12) with a node (20) distributing predetermined fraction (If) of direct current in a branch (14) of the electrical circuit and a fraction (IF) of the current in another branch (16) of the circuit. The branch (14) is formed by a secondary coil of a transformer. The circuit has an inductor that forms a variable short-circuit current attenuation unit. An independent claim is also included for a motor vehicle battery operation controlling device including a direct current measurement device.