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Pat. 11496044 United States, Int. Cl.22 H02M 3/335, H02M 3/00, H02M 7/483, H02M 7/487. DC/DC converter and neutral-point voltage balance control method thereof : Appl. N 17/142243 : Filed 06.01.2021 : Pub. 08.11.2022 : / Cheng Lu, Wenfei Hu ; Assignee Delta Electronics Shanghai Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11496044/en?oq=US11496044.html (дата обращения: ДД.ММ.ГГГГ).