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Pat. 10305287 United States, Int. Cl.22 H02J 1/00, H02J 3/00, H02J 3/38, H02J 3/46, H02M 1/36, H02S 40/32, H02S 40/38, H02M 3/158. Method for operating a photovoltaic system : Appl. N 15/253194 : Filed 31.08.2016 : Pub. 28.05.2019 : / Gerald Hoerist, Gerrit Puerstl, Alexander Trnka ; Assignee Siemens Ag ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10305287/en?oq=US10305287.html (дата обращения: ДД.ММ.ГГГГ).