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Pat. 10630188 United States, Int. Cl.22 H02M 3/335, H02M 3/337, H02M 3/338, H02M 1/44. Switching power supply apparatus and semiconductor device : Appl. N 16/257781 : Filed 25.01.2019 : Pub. 21.04.2020 : / Kensuke Takahashi, Takashi Saji ; Assignee Panasonic Intellectual Property Management Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10630188/en?oq=US10630188.html (дата обращения: ДД.ММ.ГГГГ).