ELECTRONIC SUBASSEMBLY FOR SWITCHING ELECTRIC POWER

摘要

An electronic subassembly for switching electric power has two power supply rails spaced apart from each other, between which semiconductor switches to be driven by means of a control input in order to provide the electric power via a busbar are arranged on the power output. Arranged between the two power supply rails is a capacitor assembly which extends over at least part of the length of the power supply rails. The semiconductor switches and the power supply rails and the busbar are connected to electric conductors fitted to a substrate. The capacitor assembly does not project significantly beyond the power supply rails or the busbar. In the region of at least two of its edges, the substrate has electric conductors in each case which carry electric potentials that substantially coincide with one another. The semiconductor switches, power supply rails, the load rail and/or the capacitor assembly are arranged on one side of the substrate and, on the other side, the substrate has a potential-conducting surface connected electrically to the power supply rails.