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Pat. 10348127 United States, Int. Cl.22 H02J 9/06, H02M 7/219, H02J 3/26. Three-phase uninterruptible power supply control method and apparatus, and three-phase uninterruptible power supply responsive to zero wire loss : Appl. N 15/386196 : Filed 21.12.2016 : Pub. 09.07.2019 : / Xiaoting Fang, Xianghui Liang, Yongqiao Liu ; Assignee Huawei Technologies Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10348127/en?oq=US10348127.html (дата обращения: ДД.ММ.ГГГГ).