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Pat. 11031870 United States, Int. Cl.22 H02M 3/158, H02M 1/32, H02M 1/00, H02M 1/42. Drive signal generating circuit and power supply circuit : Appl. N 16/727108 : Filed 26.12.2019 : Pub. 08.06.2021 : / Ryuji Yamada ; Assignee Fuji Electric Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11031870/en?oq=US11031870.html (дата обращения: ДД.ММ.ГГГГ).