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Pat. 10944333 United States, Int. Cl.22 H02M 7/02, H02J 7/02, H02J 9/06, H02J 13/00, H02J 50/10, H02M 3/22, H02M 7/30. Power supply unit for a self-powered intelligent electronic device : Appl. N 15/524494 : Filed 20.10.2015 : Pub. 09.03.2021 : / Gabriele Valentino De Natale, Luciano Di Maio, Massimiliano Villano ; Assignee Abb Schweiz Ag ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10944333/en?oq=US10944333.html (дата обращения: ДД.ММ.ГГГГ).