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Pat. 10756646 United States, Int. Cl.22 H02M 1/08, H02M 1/084, H02M 7/487, H02M 7/539, H02M 1/00. Multi-level inverter control device and control method : Appl. N 16/633002 : Filed 13.04.2018 : Pub. 25.08.2020 : / Kazuya Ogura, Kunihiko Saiki ; Assignee Meidensha Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10756646/en?oq=US10756646.html (дата обращения: ДД.ММ.ГГГГ).