ACTIVE PIXEL SENSOR AND DRIVING METHOD THEREOF, IMAGER AND ELECTRONIC DEVICE

    公开(公告)号:US20190281242A1

    公开(公告)日:2019-09-12

    申请号:US16071623

    申请日:2018-01-30

    Abstract: An active pixel sensor, a driving method thereof, an imager and an electronic device are disclosed. The active pixel sensor includes: a photosensitive element, configured to convert a received light signal into an electrical signal; a follower circuit, connected with the photosensitive element and configured to convert the electrical signal into an output voltage, the follower circuit including a source follower transistor; and an adjustment circuit, connected with the follower circuit and configured to collect the output voltage of the follower circuit and to adjust a bias current of the source follower transistor according to the output voltage, so as to adjust the output voltage to a preset range.

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