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Pat. 11290070 United States, Int. Cl.22 H02M 3/15, G01R 1/20, G01R 19/00, H03F 3/21, H03F 3/217, H03K 4/06, H03K 7/08. Common-mode leakage error calibration for current sensing in a class-D stage using a pilot tone : Appl. N 16/869226 : Filed 07.05.2020 : Pub. 29.03.2022 : / Ramin Zanbaghi, Cory J. Peterson, Eric Kimball ; Assignee Cirrus Logic Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11290070/en?oq=US11290070.html (дата обращения: ДД.ММ.ГГГГ).