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Pat. 11342858 United States, Int. Cl.22 H02M 3/337, H02M 3/335, H02M 3/338, H02M 3/00. Power converter apparatus including LLC resonant circuits and wide range of output voltage with higher efficiency : Appl. N 17/050661 : Filed 16.04.2019 : Pub. 24.05.2022 : / Motohiko Fujimura, Atsushi Yamamoto ; Assignee Panasonic Intellectual Property Management Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11342858/en?oq=US11342858.html (дата обращения: ДД.ММ.ГГГГ).