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Pat. 10566899 United States, Int. Cl.22 H02M 3/155, H01F 3/12, H01F 27/00, H01F 27/28, H01F 37/00, H02J 1/10, H02M 3/158, H02M 1/00. Coupled inductor in a DC-DC converter : Appl. N 15/971282 : Filed 04.05.2018 : Pub. 18.02.2020 : / Jingquan Chen, Chuan Ni ; Assignee Len Technology Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10566899/en?oq=US10566899.html (дата обращения: ДД.ММ.ГГГГ).