The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 13, 2016
Filed:
Feb. 22, 2013
Schneider Electric Power Drives Gmbh, Vienna, AT;
Michael Hartmann, Vienna, AT;
Rudolf Fehringer, Vienna, AT;
Schneider Electric Power Drives GmbH, Vienna, AT;
Abstract
The present invention relates to 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 (U, V, W) at the mains input () is connected to a first pole connection (A) of a three-pole circuit () for diverting an injection current (i) into the three-pole circuit (). It is provided in accordance with the invention that each phase (U, V, W) can respectively be connected with a switching element (S, S, S) to the first pole connection (A) of the three-pole circuit (), and a second and third pole connection (B, C) of the three-pole circuit () is respectively connected to an output line (P,N) of the DC output () for control currents (i,i), wherein the three-pole circuit () comprises controllable semiconductor valves (S,S,S,S), preferably IGBTs, for the active control of the control currents (i,i) and/or the injection current (i), and at least one choke () is arranged on one of the output lines (P,N) at the DC output (), and a time-variable load () is provided at the DC output ().