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Pat. 11233460 United States, Int. Cl.22 H02M 5/22, H02M 5/297, H02M 7/483. Modular matrix AC/AC multipoint converter having higher-frequency transformers : Appl. N 16/977166 : Filed 01.03.2018 : Pub. 25.01.2022 : / Kunal Sharma, German Kuhn, Alexander Rentschler, Martin Pieschel ; Assignee Siemens Ag ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11233460/en?oq=US11233460.html (дата обращения: ДД.ММ.ГГГГ).