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Pat. 11043900 United States, Int. Cl.22 H02M 3/335, H01H 15/00, H02J 9/06, H02M 1/00, H02M 1/10, H02M 7/48. DC-DC converter, power supply system comprising DC-DC converter and method for controlling a DC-DC converter : Appl. N 16/818994 : Filed 13.03.2020 : Pub. 22.06.2021 : / Nils Backman ; Assignee Eltek As ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11043900/en?oq=US11043900.html (дата обращения: ДД.ММ.ГГГГ).