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Pat. 9893630 United States, Int. Cl.22 H02M 3/335, H02M 1/08, H02M 3/156, H02M 1/00. Reduction of audible noise in a power converter : Appl. N 15/055337 : Filed 26.02.2016 : Pub. 13.02.2018 : / Vikram Balakrishnan, Giao Minh Pham, Ricardo Luis Janezic Pregitzer, Peter Vaughan ; Assignee Power Integrations Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US9893630/en?oq=US9893630.html (дата обращения: ДД.ММ.ГГГГ).