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Pat. 11356010 United States, Int. Cl.22 H02M 1/08, H02M 3/156, H02M 3/335. Controller with frequency request circuit : Appl. N 16/871522 : Filed 11.05.2020 : Pub. 07.06.2022 : / Sundaresan Sundararaj, Zhao-Jun Wang, Tiziano Pastore, Lance M. Wong ; Assignee Power Integrations Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11356010/en?oq=US11356010.html (дата обращения: ДД.ММ.ГГГГ).