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. 01, 2009
Filed:
Jul. 11, 2005
Thomas Biribauer, Wien, AT;
Franz Hackl, Wien, AT;
Wilfried Hofmüller, Stockerau, AT;
Heinz Pichorner, Pettendorf, AT;
Wilhelm Ritschel, Wien, AT;
Franz Wöhrer, Wien, AT;
Thomas Biribauer, Wien, AT;
Franz Hackl, Wien, AT;
Wilfried Hofmüller, Stockerau, AT;
Heinz Pichorner, Pettendorf, AT;
Wilhelm Ritschel, Wien, AT;
Franz Wöhrer, Wien, AT;
Siemens AG Osterreich, Wein, AT;
Abstract
There is described a method for controlling a quenching device for a converter bridge with line regeneration, whereby the converter bridge controlled by a network-timed control circuit by ignition pulses is connected with its three inputs to the phases of a three-phase network and the two outputs of the bridge are connected to a direct-current motor which feeds, when operated as a generator, current back to the three-phase network via the bridge. The quenching device is controlled by a trigger unit which emits trigger pulses depending on the monitoring of electrical and temporary variables. The quenching device comprises, for each bridge half, a quenching condenser that can be charged by a charging circuit quenching voltage. The quenching condensers, in the event of quenching, can be connected to the bridge halves by means of switches that are controlled by the trigger unit.