Библиографическая ссылка на патент
Pat. 11323044 United States, Int. Cl.22 H02M 7/487, H02M 1/32, H02M 7/797. Three-level inverter and a three-level brake chopper : Appl. N 15/492076 : Filed 20.04.2017 : Pub. 03.05.2022 : / Leandro Della Flora, William Giewont, David Michaud, Dan Isaksson, Andreas Doktar ; Assignee Danfoss Power Electronics As ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11323044/en?oq=US11323044.html (дата обращения: ДД.ММ.ГГГГ).