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Pat. 11316443 United States, Int. Cl.22 H02M 7/5387, H02M 1/32, H02M 7/487. Control of active neutral-point clamped three-level converter : Appl. N 17/073455 : Filed 19.10.2020 : Pub. 26.04.2022 : / Chengrui Du, Chaoqun Liu, Shenjian Zou, Zhiqiang Zhang, Baisheng Chen ; Assignee Shenzhen Kstar Technology Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11316443/en?oq=US11316443.html (дата обращения: ДД.ММ.ГГГГ).