Power supply device configured to automatically restore power after recovery from a power failure, image forming apparatus, and control method

    公开(公告)号:US10778860B2

    公开(公告)日:2020-09-15

    申请号:US16299707

    申请日:2019-03-12

    IPC分类号: H04N1/00 G06F1/26

    摘要: A power supply device installed in an electronic apparatus includes a first power supply outputting power upon a plug being connected to a system power supply, a second power supply outputting power upon receiving of a power supply control signal, a third power supply outputting power from a battery, a controller operating using the power from the second power supply and configured to control the electronic apparatus, a flip-flop configured to operate using the power from the third power supply and configured to store, upon activating the electronic apparatus, first logic data or upon shutting down the electronic apparatus, second logic data, and a power supply control switch operating using the power from the first power supply, to output the power supply control signal to the second power supply, in response to activating the electronic apparatus or in response to storing the first logic data in the flip-flop.

    POWER SUPPLY DEVICE, IMAGE FORMING APPARATUS, AND CONTROL METHOD

    公开(公告)号:US20190289156A1

    公开(公告)日:2019-09-19

    申请号:US16299707

    申请日:2019-03-12

    IPC分类号: H04N1/00 G06F1/26

    摘要: A power supply device installed in an electronic apparatus includes a first power supply outputting power upon a plug being connected to a system power supply, a second power supply outputting power upon receiving of a power supply control signal, a third power supply outputting power from a battery, a controller operating using the power from the second power supply and configured to control the electronic apparatus, a flip-flop configured to operate using the power from the third power supply and configured to store, upon activating the electronic apparatus, first logic data or upon shutting down the electronic apparatus, second logic data, and a power supply control switch operating using the power from the first power supply, to output the power supply control signal to the second power supply, in response to activating the electronic apparatus or in response to storing the first logic data in the flip-flop.