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Pat. 10992152 United States, Int. Cl.22 H01M 10/44, H01M 10/46, H02J 7/00, H02J 9/06, H02M 3/04. Uninterruptible power supply and method of operating the same : Appl. N 16/238139 : Filed 02.01.2019 : Pub. 27.04.2021 : / Chung-Chieh Cheng, Yung-Sheng Yan, Chao-Chin Huang ; Assignee Delta Electronics Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10992152/en?oq=US10992152.html (дата обращения: ДД.ММ.ГГГГ).