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Pat. 10505461 United States, Int. Cl.22 H02M 3/335, H02M 1/00, H02M 1/32, H02M 1/36. Flyback power converter circuit and primary side controller circuit and method thereof : Appl. N 15/963058 : Filed 25.04.2018 : Pub. 10.12.2019 : / Kuang-Fu Chang, Chien-Hung Chen ; Assignee Richtek Technology Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10505461/en?oq=US10505461.html (дата обращения: ДД.ММ.ГГГГ).