公开(公告)号：US20210088634A1

公开(公告)日：2021-03-25

申请号：US16812920

申请日：2020-03-09

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Eric KIMBALL ,  Kyriaki FOTOPOULOU

IPC: G01S7/4863 ,  G01S17/10 ,  G01S7/489 ,  G01S7/497 ,  G01J1/44

Abstract: A method may include operating a single-photon avalanche diode (SPAD) in a first mode to determine a light intensity level associated with the SPAD, operating the SPAD in a second mode wherein a reverse bias voltage is applied in the second mode to bias the SPAD beyond its breakdown voltage, such that the SPAD operates in a detection mode, and determining a magnitude of the bias voltage applied to the SPAD in the second mode based on the light intensity level determined in the first mode.