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:
Aug. 25, 2026
Filed:
Dec. 27, 2022
Safran Helicopter Engines, Bordes, FR;
Centre National DE LA Recherche Scientifique, Paris, FR;
Universite DE Lorraine, Nancy, FR;
Thomas Michel Andre Gerard Barraco, Moissy-Cramayel, FR;
Thomas Klonowski, Moissy-Cramayel, FR;
Serge Lionel Pierfederici, Vandoeuvre les Nancy, FR;
Mathieu Robert Weber, Vandoeuvre les Nancy, FR;
SAFRAN HELICOPTER ENGINES, Bordes, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
UNIVERSITE DE LORRAINE, Nancy, FR;
Abstract
A DC-to-DC converter for an electrical aircraft propulsion system designed to be connected in series with an electrical energy storage unit of the electrical propulsion system. The DC-to-DC converter includes an inverter, a transformer and a rectifier, and further includes a current source that is connected to the rectifier and is configured to control the power passing through the DC-to-DC converter. The transformer includes a primary and two secondaries, the two secondaries sharing a common terminal designed to be connected to a high-voltage DC bus of the electrical propulsion system and two other terminals that are connected to the rectifier. The rectifier includes two arms including at least two transistors that are each in series and are connected, on the one hand, to the two other terminals of the transformer and, on the other hand, to the current source.