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Pat. 11205971 United States, Int. Cl.22 H02M 7/5387, H02J 1/00, H02M 1/12, H02M 7/483, H02J 1/08. Method for operating a multilevel inverter with a sinusoidal output voltage : Appl. N 17/348895 : Filed 16.06.2021 : Pub. 21.12.2021 : / Hussain Bassi, Muhyaddin Jamal Rawa ; Assignee King Abdulaziz University ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11205971/en?oq=US11205971.html (дата обращения: ДД.ММ.ГГГГ).