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Pat. 11349302 United States, Int. Cl.22 H02H 9/02, H02H 3/08, H02M 3/07, H03K 5/08, G05F 1/40, H02M 1/32, H03K 17/0812. Circuit structure for suppressing surge current : Appl. N 16/097238 : Filed 30.11.2017 : Pub. 31.05.2022 : / Weihua Cao ; Assignee Zhengzhou Yunhai Information Technology Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11349302/en?oq=US11349302.html (дата обращения: ДД.ММ.ГГГГ).