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Pat. 11201555 United States, Int. Cl.22 H02M 3/335. Switching power supply device having secondary side synchronous rectification element and control circuit therefor : Appl. N 16/794428 : Filed 19.02.2020 : Pub. 14.12.2021 : / Minoru Kado, Takumi Hyugaji, Takeshi Sato ; Assignee Mitsumi Electric Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11201555/en?oq=US11201555.html (дата обращения: ДД.ММ.ГГГГ).