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Pat. 10615681 United States, Int. Cl.22 H02M 1/14, H02M 1/08, H02M 3/28, H02M 3/335, H02M 1/42. Switching power supply circuit : Appl. N 16/303259 : Filed 19.05.2017 : Pub. 07.04.2020 : / Takafumi Nonaka, Kentaro Oshima, Teruyoshi Sato, Norihiro Suzuki ; Assignee Mitsubishi Electric Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10615681/en?oq=US10615681.html (дата обращения: ДД.ММ.ГГГГ).