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Pat. 11388844 United States, Int. Cl.22 H02M 1/42, H02M 1/44, H02M 3/155, H05K 1/14, H05K 7/20. Switching power supply device : Appl. N 16/909325 : Filed 23.06.2020 : Pub. 12.07.2022 : / Shintaro Tazaki, Kento Mochizuki ; Assignee Panasonic Intellectual Property Management Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11388844/en?oq=US11388844.html (дата обращения: ДД.ММ.ГГГГ).