Patent ID: 9444362
Filing Date: 2016-09-13
CPC Classification: H02M,Y02B

Claim Text:
1. A rectifier circuit with a three-phase rectifier arrangement of semiconductor valves, preferably a bridge rectifier circuit of diodes, wherein the rectifier arrangement comprises a three-phase mains input and a DC output, and at least one of the three phases at the mains input is connected to a first pole connection of a three-pole circuit for diverting an injection current into the three-pole circuit, wherein each phase can respectively be connected with a switching element to the first pole connection of the three-pole circuit, and a second and third pole connection of the three-pole circuit is respectively connected to an output line of the DC output for control currents, wherein the three-pole circuit comprises controllable semiconductor valves, preferably IGBTs, for the active control of the control currents and/or the injection current, and at least one choke is arranged on one of the output lines at the DC output, and a time-variable load is provided at the DC output, and wherein the second and third pole connection of the three-pole circuit are respectively connected via a second and third inductor to one of the two output lines of the DC output, and the choke is provided between the second or third pole connection and the load.