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Pat. 11070141 United States, Int. Cl.22 H02M 7/10, H02M 7/44, H02M 1/32. Hybrid multilevel inverter topology with reduced switch count and dc voltage sources : Appl. N 16/725312 : Filed 23.12.2019 : Pub. 20.07.2021 : / Hussain Mohammad Bassi, Zainal Salam ; Assignee King Abdulaziz University ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11070141/en?oq=US11070141.html (дата обращения: ДД.ММ.ГГГГ).