Electric printed circuit board for protecting microprocessors against electrostatic discharge has protective strip conductors on both sides of the printed circuit board running round on the outer edge of the printed circuit board

摘要

A printed circuit board (PCB) (1) has electronic components (2). Running round on the outer edge of the PCB there is a protective strip conductor (3). Electric charges, which arise through a radio flashover between an air gap (5) and a protective strip conductor, are branched off via an earthing wire (8) on an appliance and eliminated. The radio flashover arise through electrostatic discharges outside a casing.