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Pat. 9998020 United States, Int. Cl.22 H02M 3/335, H02M 1/08, H02M 1/00. Method and apparatus for efficient switching in semi-resonant power converters : Appl. N 15/143068 : Filed 29.04.2016 : Pub. 12.06.2018 : / Amir Babazadeh, Robert Carroll ; Assignee Infineon Technologies Austria Ag ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US9998020/en?oq=US9998020.html (дата обращения: ДД.ММ.ГГГГ).