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Pat. 10320280 United States, Int. Cl.22 H02M 1/14, H02M 3/155, H03H 7/01, H02M 1/00, H02M 1/15. LC filter including coupled inductors for reducing ripple in switching power supplies : Appl. N 15/804437 : Filed 06.11.2017 : Pub. 11.06.2019 : / Aldrick S. Limjoco, Jefferson Albo Eco ; Assignee Analog Devices Global Ulc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10320280/en?oq=US10320280.html (дата обращения: ДД.ММ.ГГГГ).