CURRENT MEASURING DEVICE USING A MAGNETICALLY SENSITIVE SENSOR FOR A POWER ELECTRONICS SYSTEM

摘要

The invention relates to a current measuring device in a power electronics system, which comprises at least one circuit board (9) and an electric conductor (4) which is guided through a frame (1) that surrounds the circuit board. According to the main idea of the invention, the current measuring device encompasses a soft-magnetic core (3) surrounding the insulation of the electric conductor (4), said core being disposed in the frame (1). The soft-magnetic core (3) is open at one location (6). A magnetically sensitive sensor (5), in particular a Hall sensor, is arranged in the recess (6) of the soft-magnetic core (3) that surrounds the insulation of the electric conductor (4) in order to detect the magnetic field strength.