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Pat. 10886907 United States, Int. Cl.22 H03K 7/08, H02M 3/157, H03M 3/00. Method of controlling resolution of digital pulse width modulation : Appl. N 16/717371 : Filed 17.12.2019 : Pub. 05.01.2021 : / Yeu-Torng Yau, Tsung-Liang Hung ; Assignee Asian Power Devices Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10886907/en?oq=US10886907.html (дата обращения: ДД.ММ.ГГГГ).