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:
Jan. 24, 2017
Filed:
Nov. 16, 2012
Siemens Aktiengesellschaft, München, DE;
Stefan Völkel, Erlangen, DE;
SIEMENS AKTIENGESELLSCHAFT, München, DE;
Abstract
A method for protecting an intermediate circuit capacitor in a power converter circuit is disclosed. The power converter circuit includes at least two submodules in a series circuit, which draws electrical power from a power source outputting a DC voltage via an inductance, wherein each submodule has, on the input side, a single-phase half bridge and, on the load side, a single-phase full bridge, and wherein the half bridge, the full bridge and an intermediate circuit capacitor are connected in parallel with one another on the DC voltage side. When a fault in one of the submodules is detected, transmission of electrical power from the load-side output of the full bridge of the submodule with the detected fault into the submodule with the detected fault is blocked.