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Pat. 10234880 United States, Int. Cl.22 H02M 1/08, G05F 1/571, H02M 3/158, H02M 1/00, H02M 3/156. Active clamp circuit for power semiconductor switch and power converter using the same : Appl. N 16/038184 : Filed 18.07.2018 : Pub. 19.03.2019 : / Wuying Li, Xin Wang, Lifeng Qiao, Chenyu Lai, Jianping Ying ; Assignee Delta Electronics Shanghai Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10234880/en?oq=US10234880.html (дата обращения: ДД.ММ.ГГГГ).