US 12,238,438 B2
Imaging device and method of driving imaging device
Shinya Miyazaki, Kanagawa (JP)
Assigned to SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP)
Appl. No. 18/005,628
Filed by SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP)
PCT Filed Jun. 24, 2021, PCT No. PCT/JP2021/024031
§ 371(c)(1), (2) Date Jan. 16, 2023,
PCT Pub. No. WO2022/024615, PCT Pub. Date Feb. 3, 2022.
Claims priority of application No. 2020-126719 (JP), filed on Jul. 27, 2020.
Prior Publication US 2023/0283924 A1, Sep. 7, 2023
Int. Cl. H04N 25/75 (2023.01); H01L 27/146 (2006.01); H04N 25/773 (2023.01)
CPC H04N 25/75 (2023.01) [H01L 27/14614 (2013.01); H04N 25/773 (2023.01)] 18 Claims
OG exemplary drawing
 
1. An imaging device comprising:
a light-receiving pixel including a light-receiving element and a pixel transistor, the light-receiving element generating electric charge corresponding to an amount of received light;
a power supply that generates a first power supply voltage at a first power supply node;
a driver that drives the pixel transistor on a basis of the first power supply voltage at the first power supply node; and
a current circuit that causes a power supply current to flow through a current path led to the first power supply node, the power supply current having a predetermined current value, wherein
the current circuit includes
a load,
a load driving section that drives the load, and
a switch that is provided on the current path, the switch allowing the power supply current to flow through the current path by being turned on in a period in which a voltage in the load changes by a predetermined voltage.