Suppression filter for reducing switching interference signals in static converter

摘要

The interference signals appear during switching of semiconductor switches in the converter. On the other side of a dielectric panel (2), a first planar conductor (1) is formed. On a second side, a second planar conductor is formed, opposite the first one. The two conductors act with the dielectric panel to form a circuit which functions as a choke and a capacitor. The first conductor comprises an opposite end for the flow of a main circuit current of the converter. The interference based current, flowing from the first conductor through the dielectric panel to the second conductor, can be deflected to earth via the second conductor.