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Pat. 11121625 United States, Int. Cl.22 H02M 3/158, H02M 1/00, H02M 1/34, H02M 3/07. Voltage doubler using a switching regulator and voltage limiter : Appl. N 16/638024 : Filed 13.08.2018 : Pub. 14.09.2021 : / Joseph Clark ; Assignee Interdigital Madison Patent Holdings Sas ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11121625/en?oq=US11121625.html (дата обращения: ДД.ММ.ГГГГ).