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Pat. 10284075 United States, Int. Cl.22 H02M 1/32, H02H 7/125, H02M 3/335, H02M 7/06, H02M 7/155. Overvoltage protection circuit for protecting overvoltage corresponding to wide range of input voltage : Appl. N 16/052136 : Filed 01.08.2018 : Pub. 07.05.2019 : / Shohtaroh Sohma, Yuji Takeyama, Kimihiro Nishijima ; Assignee National University Corp Oita University, Ricoh Electronic Devices Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10284075/en?oq=US10284075.html (дата обращения: ДД.ММ.ГГГГ).