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Pat. 10277139 United States, Int. Cl.22 H02M 3/00, H02M 1/14, H02M 3/335, H02J 9/00, H02M 1/00, H02M 1/10, H02M 7/06. Power conversion device which detects power shortage and switches to a power supply that is capable of supplying power : Appl. N 15/122598 : Filed 08.05.2015 : Pub. 30.04.2019 : / Takaaki Takahara, Satoshi Murakami, Ryota Kondo, Masaki Yamada, Naohisa Uehara ; Assignee Mitsubishi Electric Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10277139/en?oq=US10277139.html (дата обращения: ДД.ММ.ГГГГ).