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:
Jun. 23, 2026
Filed:
Apr. 23, 2024
Abb Schweiz Ag, Baden, CH;
ABB Schweiz AG, Baden, CH;
Abstract
A flying capacitor converter comprising a protection circuit includes at least two cells, each having a capacitor having a first and second DC sides, a first switch connected to the first DC side and to a capacitor of a following cell or an output circuit, and a second switch connected to the second DC side and to the capacitor of the following cell or the output circuit. During a nominal non-fault operation of the flying capacitor converter, only one of the first and second switches is in a conducting state, and during a fault operation where the first switch has a short circuit failure and the second switch has a conducting state, the protection circuit is configured to keep the second switch switched-on.