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Pat. 10547239 United States, Int. Cl.22 H02M 7/48, H02M 1/32, H02M 3/158, B60L 3/12. Voltage converter control apparatus configured to determine a normal duty ratio range based on a command value for the output voltage : Appl. N 14/839261 : Filed 28.08.2015 : Pub. 28.01.2020 : / Yuichi Katsuki, Takeshi Itoh ; Assignee Denso Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10547239/en?oq=US10547239.html (дата обращения: ДД.ММ.ГГГГ).