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Pat. 10411592 United States, Int. Cl.22 H02M 1/42, H02M 7/06, H02M 7/217, H02M 1/00. Zero current and valley detection for power factor correction : Appl. N 15/854467 : Filed 26.12.2017 : Pub. 10.09.2019 : / 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/US10411592/en?oq=US10411592.html (дата обращения: ДД.ММ.ГГГГ).