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Pat. 10819246 United States, Int. Cl.22 H02M 3/335, G05F 1/10, H02H 9/00, H02M 7/00, H02M 7/12, H02M 7/155, H05B 47/10. Power supply circuit based on feedback signal, power supply device and control method : Appl. N 16/415598 : Filed 17.05.2019 : Pub. 27.10.2020 : / Chen Tian, Jialiang Zhang ; Assignee Guangdong Oppo Mobile Telecommunications Corp Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10819246/en?oq=US10819246.html (дата обращения: ДД.ММ.ГГГГ).