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Pat. 10826402 United States, Int. Cl.22 H02M 3/335. Methods and systems of controlling switching frequency of LLC resonant power converters : Appl. N 16/674079 : Filed 05.11.2019 : Pub. 03.11.2020 : / Roman Stuler, Vaclav Drda, Roman Mazgut ; Assignee Semiconductor Components Industries LLC ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10826402/en?oq=US10826402.html (дата обращения: ДД.ММ.ГГГГ).