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Pat. 10886860 United States, Int. Cl.22 H02M 7/538, H02M 1/084, H02M 7/5387. Three-phase, three-level inverters and methods for performing soft switching with phase synchronization : Appl. N 16/416915 : Filed 20.05.2019 : Pub. 05.01.2021 : / Nidhi Haryani, Sungjae Ohn, Rolando Burgos, Dushan Boroyevich ; Assignee Virginia Tech Intellectual Properties Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10886860/en?oq=US10886860.html (дата обращения: ДД.ММ.ГГГГ).