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Pat. 11165374 United States, Int. Cl.22 H02P 6/00, H02M 7/5387, H02P 6/16, H02P 6/182. Sensor-less circuits and related methods for back EMF zero crossing detection : Appl. N 16/837575 : Filed 01.04.2020 : Pub. 02.11.2021 : / Satoshi Yokoo ; Assignee Semiconductor Components Industries LLC ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11165374/en?oq=US11165374.html (дата обращения: ДД.ММ.ГГГГ).