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Pat. 10978898 United States, Int. Cl.22 H02J 7/00, H02M 3/07, H02J 7/34. Charging circuit, system and method, and electronic device : Appl. N 16/321837 : Filed 07.08.2017 : Pub. 13.04.2021 : / Changsong Huang, Linfeng Chen, Xiaoyong Liu ; Assignee Meizu Technology Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10978898/en?oq=US10978898.html (дата обращения: ДД.ММ.ГГГГ).