Hall-effect current detector

摘要

A current detector comprising a first (3 or 3a) and a second (4 or 4a) current-path detector each in the form of a sheet-metal punching having a pair of relatively broad terminal webs (17 and 18; or 20 and 21) of rectangular shape joined together via a bridge (16 or 19) of arcuate shape. The bridges are slender compared to the terminal webs for concentrated current flow therethrough. Various arrangements are possible for the two current-path conductors, but their bridges are invariably placed in superposition upon one another. A Hall generator (14) is positioned between the bridges (16, 19) so as to be acted upon by magnetic fields created upon current flow therethrough. One (e.g. 18) of the terminal webs of the first current-path conductor (3) is electrically connected to one (e.g. 20) of the terminal web of the second, in such a way that the magnetic lines of force due to current flow through the two bridges act in the same direction upon the Hall generator. <IMAGE>