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Pat. 11251712 United States, Int. Cl.22 H02M 3/24, H02J 7/00, H02J 7/02, H02M 1/00, H02M 1/14, H02M 1/36, H02M 3/335, H02M 7/04. Power supply circuit, power supply device and control method : Appl. N 16/391129 : Filed 22.04.2019 : Pub. 15.02.2022 : / Chen Tian, Jialiang Zhang ; Assignee Guangdong Oppo Mobile Telecommunications Corp Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11251712/en?oq=US11251712.html (дата обращения: ДД.ММ.ГГГГ).