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Pat. 10644596 United States, Int. Cl.22 H02M 3/158, H02M 3/156, H02M 3/157. Self-balanced non-isolated hybrid modular DC-DC converter based on low duty cycle operation and sequential capacitors charging/discharging for medium voltage DC grids : Appl. N 16/207121 : Filed 01.12.2018 : Pub. 05.05.2020 : / Ahmed Elserougi, Ahmed Massoud, Shehab Ahmed ; Assignee Qatar University ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10644596/en?oq=US10644596.html (дата обращения: ДД.ММ.ГГГГ).