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Pat. 9917466 United States, Int. Cl.22 H02J 3/14, H02J 7/00, H02J 7/04, H02M 3/00, H02M 5/45. DC power source and associated methods of operating same to efficiently supply a specification-compliant output voltage : Appl. N 14/230421 : Filed 31.03.2014 : Pub. 13.03.2018 : / Daniel H. Wagner, Roshan Kamath, Daniel C. Nowak ; Assignee Google Technology Holdings LLC ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US9917466/en?oq=US9917466.html (дата обращения: ДД.ММ.ГГГГ).