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Pat. 11271404 United States, Int. Cl.22 H02J 3/38, H02M 1/32, H02M 3/158. Photovoltaic power optimizer and method and apparatus for controlling same, and photovoltaic power generation system : Appl. N 16/793252 : Filed 18.02.2020 : Pub. 08.03.2022 : / Feng Yang, Chengyong Liu, Chengfeng Jiang ; Assignee Huawei Digital Power Technologies Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11271404/en?oq=US11271404.html (дата обращения: ДД.ММ.ГГГГ).