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Pat. 10243442 United States, Int. Cl.22 H02M 1/08, H02M 1/42, H02M 3/335. Controller with frequency to on-time converter : Appl. N 15/821479 : Filed 22.11.2017 : Pub. 26.03.2019 : / Balu Balakrishnan, Tiziano Pastore, Sundaresan Sundararaj ; Assignee Power Integrations Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10243442/en?oq=US10243442.html (дата обращения: ДД.ММ.ГГГГ).