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Pat. 9979306 United States, Int. Cl.22 H02M 1/14, H02M 1/08, H02M 1/42, H02M 1/44, H02M 3/335, H02M 1/00. Phase feed-forward control for output voltage AC line ripple suppression in digital power supply : Appl. N 15/598026 : Filed 17.05.2017 : Pub. 22.05.2018 : / Huamin Xu, Chen Wei An, Liu Xiao Dong ; Assignee Flex Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US9979306/en?oq=US9979306.html (дата обращения: ДД.ММ.ГГГГ).