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Pat. 10491098 United States, Int. Cl.22 H02M 1/08, H02M 1/12, H02M 1/42, H02M 1/44, H02M 3/335, H02M 5/22, H02M 5/458, H02M 1/00, H02M 7/48. Soft switching solid state transformers and converters : Appl. N 16/302356 : Filed 17.05.2017 : Pub. 26.11.2019 : / Hao Chen, Deepakraj M. Divan ; Assignee Georgia Tech Research Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10491098/en?oq=US10491098.html (дата обращения: ДД.ММ.ГГГГ).