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Pat. 10944338 United States, Int. Cl.22 H02M 7/797, H02M 5/458, H02M 7/219, H02M 7/48, H02M 7/483, H02M 7/5387, H02M 7/81. Power apparatus applied in SST structure and three-phase power source system having the same : Appl. N 16/562074 : Filed 05.09.2019 : Pub. 09.03.2021 : / Wen-Lung Huang, Sheng-Hua Li ; Assignee Delta Electronics Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10944338/en?oq=US10944338.html (дата обращения: ДД.ММ.ГГГГ).