Dilworth & Barrese, LLP.
Active pixel sensor and driving method thereof, imager and electronic device
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.
BOE TECHNOLOGY GROUP CO., LTD.
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inventional inventional
Changfeng Wei Chih Jen Xiaoliang Rui Pengpeng
Li Liu Cheng Ding Xu Wang