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Pat. 11239751 United States, Int. Cl.22 H02M 3/157, H02J 3/02, H02J 3/38, H02M 1/10, H02M 3/158, H02M 1/00. DC-coupled hybrid energy system and method for converting DC voltages : Appl. N 16/860412 : Filed 28.04.2020 : Pub. 01.02.2022 : / Ahmed Teirelbar, Bassem Saleh, Amr Wasfi ; Assignee Karmsolar ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11239751/en?oq=US11239751.html (дата обращения: ДД.ММ.ГГГГ).