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Pat. 10938307 United States, Int. Cl.22 H02M 3/158, H02M 1/00, H02M 3/156, H03F 3/45, H03G 3/20, H03G 11/00. Input power limited switching regulator : Appl. N 16/121205 : Filed 04.09.2018 : Pub. 02.03.2021 : / Yongxuan Hu, Weiyun Chen, Stephen C. Terry, Chi Kin Ho, Norah E. Nakibuuka ; Assignee Apple Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10938307/en?oq=US10938307.html (дата обращения: ДД.ММ.ГГГГ).