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Pat. 11171574 United States, Int. Cl.22 H02M 7/48. Power conversion device with estimation of load voltage based on electrostatic capacitance of load or correction coefficient : Appl. N 16/616777 : Filed 02.04.2018 : Pub. 09.11.2021 : / Ryota Asakura, Tomokazu Sakashita, Takahiro Inoue ; Assignee Mitsubishi Electric Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11171574/en?oq=US11171574.html (дата обращения: ДД.ММ.ГГГГ).