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Pat. 11177743 United States, Int. Cl.22 H02M 7/10, H02M 1/00, H02M 7/44, H02M 7/49, H02M 7/5387, H02M 1/32. System for voltage level generation in a switched series/parallel sources hybrid multi-level inverter : Appl. N 17/242499 : Filed 28.04.2021 : Pub. 16.11.2021 : / Hussain Mohammad Bassi, Zainal Salam ; Assignee King Abdulaziz University ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11177743/en?oq=US11177743.html (дата обращения: ДД.ММ.ГГГГ).