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Pat. 11411489 United States, Int. Cl.22 H02M 3/00, H02M 1/08, H02M 1/38, H02M 3/335. Resonant half-bridge flyback power converter and primary controller circuit and control method thereof : Appl. N 17/341074 : Filed 07.06.2021 : Pub. 09.08.2022 : / Ta-Yung Yang, Kun-Yu Lin, Yu-Chang Chen ; Assignee Richtek Technology Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11411489/en?oq=US11411489.html (дата обращения: ДД.ММ.ГГГГ).