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Pat. 10296034 United States, Int. Cl.22 G05F 3/26, G05F 1/10, G09G 3/20, H02M 3/07, H03K 17/12, H03K 17/22, H03F 3/45. Negative power supply control circuit and power supply device : Appl. N 16/020948 : Filed 27.06.2018 : Pub. 21.05.2019 : / Kohei Sakurai, Yoichi Takano ; Assignee Mitsumi Electric Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10296034/en?oq=US10296034.html (дата обращения: ДД.ММ.ГГГГ).