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Pat. 11342842 United States, Int. Cl.22 H02M 3/158, H02M 1/44, H02M 1/00. Pulse frequency modulation and frequency avoidance method and implementation for switching regulators : Appl. N 16/805577 : Filed 28.02.2020 : Pub. 24.05.2022 : / Erhan Ozalevli, Yanhui Xie, Dharmesh C. Bhagatwala ; Assignee Apple Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11342842/en?oq=US11342842.html (дата обращения: ДД.ММ.ГГГГ).