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Pat. 10840815 United States, Int. Cl.22 H02M 3/335, H02M 1/00, H02M 1/10, H02M 1/32, H02M 7/04, H02M 7/06. Power supply circuit based on feedback signal, power supply device and control method : Appl. N 16/415827 : Filed 17.05.2019 : Pub. 17.11.2020 : / Chen Tian, Jialiang Zhang ; Assignee Guangdong Oppo Mobile Telecommunications Corp Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10840815/en?oq=US10840815.html (дата обращения: ДД.ММ.ГГГГ).