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Pat. 10985763 United States, Int. Cl.22 H03L 7/081, H02M 7/46, H03F 3/45, H03G 3/30, H03H 7/01, H03K 3/0233, H03K 6/02. Square wave-to-sine wave converter : Appl. N 16/991072 : Filed 12.08.2020 : Pub. 20.04.2021 : / Qunying Li, Shanmuganand Chellamuthu, Kemal Safak Demirci ; Assignee Texas Instruments Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10985763/en?oq=US10985763.html (дата обращения: ДД.ММ.ГГГГ).