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Pat. 11456599 United States, Int. Cl.22 H02J 3/18, H02J 3/26, H02J 3/38, H02J 13/00, H02M 1/42, H02M 5/42. Three-phase power supply system and power supply method : Appl. N 17/334830 : Filed 31.05.2021 : Pub. 27.09.2022 : / Tao Xia, Hong Liu, Cheng Lu, Sheng-Hua Li ; Assignee Delta Electronics Shanghai Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11456599/en?oq=US11456599.html (дата обращения: ДД.ММ.ГГГГ).