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Pat. 10978950 United States, Int. Cl.22 H02M 3/158. Power supply device and method for controlling power supply device : Appl. N 16/473416 : Filed 23.02.2017 : Pub. 13.04.2021 : / Itsuo Yuzurihara, Ryosuke Ohma, Hiroshi Kunitama, Yu Hosoyamada ; Assignee Kyosan Electric Manufacturing Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10978950/en?oq=US10978950.html (дата обращения: ДД.ММ.ГГГГ).