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Pat. 10312825 United States, Int. Cl.22 H02M 7/5387, H02M 7/483, H02M 7/487, H02S 40/32. Five-level half bridge inverter topology with high voltage utilization ratio : Appl. N 15/751329 : Filed 15.08.2016 : Pub. 04.06.2019 : / Hongliang Wang, Yan-Fei Liu ; Assignee Hongliang Wang, Yan-Fei Liu ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10312825/en?oq=US10312825.html (дата обращения: ДД.ММ.ГГГГ).