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Pat. 11018595 United States, Int. Cl.22 H02M 3/335, H02M 1/08, H02M 1/00. Secondary controlled AC-DC converter and methodology for low frequency operation : Appl. N 17/027434 : Filed 21.09.2020 : Pub. 25.05.2021 : / Pavan Kumar Kuchipudi, Myeongseok Lee, Rashed Ahmed, Murtuza Lilamwala ; Assignee Cypress Semiconductor Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11018595/en?oq=US11018595.html (дата обращения: ДД.ММ.ГГГГ).