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Pat. 11171558 United States, Int. Cl.22 H02M 1/14, H02M 3/04, H02M 1/00. DC power supply with adaptive controlled preregulator and postregulator : Appl. N 16/723080 : Filed 20.12.2019 : Pub. 09.11.2021 : / Philipp Weigell, Sascha Kunisch ; Assignee Rohde and Schwarz Gmbh and Co Kg ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11171558/en?oq=US11171558.html (дата обращения: ДД.ММ.ГГГГ).