Device for measuring alternating currents for high-current applications

Abstract

The invention relates to a device (100) for measuring alternating currents for high-current applications, comprising a printed circuit board (10) with at least one current-carrying conductor (20), wherein the printed circuit board (10) has a current sensor (50) for measuring a current flowing through the at least one current-carrying conductor (20), the current sensor (50) being arranged on a first outer surface (12) of the printed circuit board (10). The printed circuit board (10) has a magnetic shielding device (30) configured to shield the current sensor (50) from magnetic interference fields. The magnetic shielding device (30) comprises shielding conductors (32, 34) which extend on both sides of the at least one current-carrying conductor (20) and are spaced apart from the at least one current-carrying conductor (20) in a transverse direction (16).In this case, at least one current-carrying conductor track (20) has a constriction (22) at the location of the current sensor (50) in the transverse direction (16).

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