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Pat. 11133700 United States, Int. Cl.22 H02J 7/00, G01R 19/165, G05F 1/46, H02J 7/02, H02J 7/04, H02J 7/14, H02M 3/28, H02M 3/335, H02M 1/00. Power supply device and charging control method : Appl. N 16/273526 : Filed 12.02.2019 : Pub. 28.09.2021 : / Jialiang Zhang, Chen Tian ; Assignee Guangdong Oppo Mobile Telecommunications Corp Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11133700/en?oq=US11133700.html (дата обращения: ДД.ММ.ГГГГ).