Rectifier circuit for converting an n-phase AC voltage into a DC voltage has n bi-directional switching circuits with each switching circuit containing a parallel connection made up of two serial connections.

摘要

Every switching circuit has a parallel connection with a first serial connection made up of two switching elements (S1/S2,S3/S4,S5/S6) of equal current conduction direction and a second serial connection made up of two diodes (D1/D2,D3/D4,D5/D6) of equal current conduction direction. In each switching circuit connection points between switching elements each connect to AC voltage input connectors (R,S,T) for each phase via chokes (L1-L3). An Independent claim is also included for a method for controlling a rectifier circuit.