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:
Jul. 24, 2018
Filed:
Aug. 15, 2013
Siemens Aktiengesellschaft, München, DE;
Hans-Günter Eckel, Rostock, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A multilevel converter has a central device for controlling operations and a plurality of series-connected sub modules that each has a first switch, a second switch, and a capacitor. At least two of the sub modules form a multi module, wherein, in charging phases and in discharging phases of the multi module, one of the switches of each sub module is switched off and the other switch of each sub module is switched on. The multi module has a control device that is connected to the central device and undertakes control of the sub modules of the multi module on the basis of control signals from the central device. The control device is configured such that it monitors the capacitor voltages of the sub modules and, in the event of an imbalance in the capacitor voltages, brings about balancing.