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Pat. 10291230 United States, Int. Cl.22 H03L 5/00, H02M 3/07, H03K 3/0233, H03K 3/356, H03K 19/017, H03K 19/0185, H03K 19/177. Level shifter and level shifting method : Appl. N 15/700033 : Filed 08.09.2017 : Pub. 14.05.2019 : / Lei Pan ; Assignee Taiwan Semiconductor Manufacturing Co Tsmc Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10291230/en?oq=US10291230.html (дата обращения: ДД.ММ.ГГГГ).