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Pat. 11316429 United States, Int. Cl.22 H02M 1/08, H02M 3/158. Switching regulator circuit to convert input DC voltage to output DC voltage with setting a switching frequency according to load current : Appl. N 16/902273 : Filed 16.06.2020 : Pub. 26.04.2022 : / Kunio Tsuchida ; Assignee Fanuc Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11316429/en?oq=US11316429.html (дата обращения: ДД.ММ.ГГГГ).