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Pat. 10566897 United States, Int. Cl.22 H02M 1/44, H02M 1/14, H02M 3/04, H02M 3/158, H02M 1/12. DC converter, DC converter group and method of connecting the same : Appl. N 16/266007 : Filed 02.02.2019 : Pub. 18.02.2020 : / Guoqiao Shen, Yuhu Zhou, Haijun Yang, Jinfa Zhang ; Assignee Delta Electronics Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10566897/en?oq=US10566897.html (дата обращения: ДД.ММ.ГГГГ).