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Pat. 10770977 United States, Int. Cl.22 H02M 3/335, H02M 1/34, H02M 1/00. Systems and methods of operation for power converters having series-parallel mode active clamps : Appl. N 16/366611 : Filed 27.03.2019 : Pub. 08.09.2020 : / Vijay Phadke ; Assignee Apple Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10770977/en?oq=US10770977.html (дата обращения: ДД.ММ.ГГГГ).