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Pat. 10720773 United States, Int. Cl.22 H02J 3/24, H02J 3/01, H02M 1/08, H02M 7/793, H02J 3/38, H02M 1/00, H02M 7/537. Electric circuit and associated method for regulating power transfer in a power grid : Appl. N 15/859888 : Filed 02.01.2018 : Pub. 21.07.2020 : / Yuanbin He, Shu-Hung Henry Chung, Chun-Tak Lai ; Assignee City University of Hong Kong Cityu ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10720773/en?oq=US10720773.html (дата обращения: ДД.ММ.ГГГГ).