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Pat. 11336274 United States, Int. Cl.22 H03K 17/08, H02H 9/04, H02M 1/34, H02M 3/156, H02H 3/20, H02H 7/09, H02M 1/44. Clamp circuit and power module using the same : Appl. N 16/943272 : Filed 30.07.2020 : Pub. 17.05.2022 : / Lifeng Qiao, Wuying Li, Dehui Zhang, Teng Liu, Jianping Ying ; Assignee Delta Electronics Shanghai Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11336274/en?oq=US11336274.html (дата обращения: ДД.ММ.ГГГГ).