Abstract: The invention relates to a circuit arrangement of a phase leg of a three-point converter. A circuit arrangement of a three-point converter is provided that is optimised with regard to the suppression of parasitic inductance, and at the same time has a compact simple construction, so that the converter can be incorporated in a electrical enclosure in a space-saving and installation friendly manner.

Abstract: The invention relates to a circuit arrangement of a phase leg of a three-point converter. A circuit arrangement of a three-point converter is provided that is optimised with regard to the suppression of parasitic inductance, and at the same time has a compact simple construction, so that the converter can be incorporated in a electrical enclosure in a space-saving and installation friendly manner.

Abstract: In a two-point or three-point inverter, a feedback circuitry is provided, which is disposed in parallel with a feedback capacitor (CR), and essentially include a semiconductor valve (SR) and a transformer (TR). As a result of switching the semiconductor valve (SR) once, the energy of the protective-circuit reactances, which have been stored in the feedback capacitor, is fed back into the link-circuit voltage source by the transformer. The arrangement according to the invention is distinguished by a high efficiency, accompanied at the same time by high turn-on/turn-off frequency of the semiconductor switch.