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Pat. 10756620 United States, Int. Cl.22 H02M 1/00, H02M 1/42, H02M 7/06, H02M 7/217. Zero current and valley detection for power factor correction : Appl. N 16/525790 : Filed 30.07.2019 : Pub. 25.08.2020 : / Ananthakrishnan Viswanathan, Salvatore Giombanco, Joseph Michael Leisten, Philomena Cleopha Brady ; Assignee Texas Instruments Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10756620/en?oq=US10756620.html (дата обращения: ДД.ММ.ГГГГ).