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Pat. 11251736 United States, Int. Cl.22 H02M 7/5387, B60L 50/51, B61C 3/00, H02P 27/06. Electric drive system and method for operating a power converter : Appl. N 17/032168 : Filed 25.09.2020 : Pub. 15.02.2022 : / Markus Vogelsberger, Christian Wirth ; Assignee Bombardier Transportation Gmbh ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11251736/en?oq=US11251736.html (дата обращения: ДД.ММ.ГГГГ).