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Pat. 10879787 United States, Int. Cl.22 H02M 3/00, H02J 1/10, H02J 13/00, H02M 1/00, H02M 1/42, H02M 3/156, H03H 11/04, H02M 7/217. Power supply connecting board with variable output voltage levels : Appl. N 15/557440 : Filed 10.03.2016 : Pub. 29.12.2020 : / Eric Morin ; Assignee Telcodium Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10879787/en?oq=US10879787.html (дата обращения: ДД.ММ.ГГГГ).