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Pat. 10320291 United States, Int. Cl.22 H02M 3/156, H02M 1/00, H02M 3/157. Control circuit and device with edge comparison for switching circuit : Appl. N 15/693136 : Filed 31.08.2017 : Pub. 11.06.2019 : / Pitleong Wong, Feng Xu, Siopang Chan, Yuancheng Ren, Xunwei Zhou ; Assignee Joulwatt Technology Hangzhou Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10320291/en?oq=US10320291.html (дата обращения: ДД.ММ.ГГГГ).