公开(公告)号：WO2022212333A1

公开(公告)日：2022-10-06

申请号：PCT/US2022/022294

申请日：2022-03-29

Applicant: ALLEGRO MICROSYSTEMS, LLC

Inventor： MYERS, Charles ,  LEE, Adam

IPC: H03F3/08 ,  H04N5/33 ,  H03F3/45 ,  G01J1/44 ,  G01J2001/446 ,  G01J2001/448 ,  G01S17/894 ,  G01S7/4863 ,  H03F3/45376 ,  H03F3/45475 ,  H03F3/45632 ,  H03F3/45941 ,  H04N5/357 ,  H04N5/361 ,  H04N5/3651 ,  H04N5/3745 ,  H04N5/37452 ,  H04N5/37455 ,  H04N5/37457

Abstract: Methods and apparatus for processing information from a photodetector, such as a photodiode. Embodiments can provide power supply noise rejection, capture active and/or passive imaging data, and/or provide correction of non-uniform photo-detector and pixel gains. Some embodiments include a photodetector coupled to a differential transimpedance amplifier. Some embodiments include a damage threshold exceedance detection circuit to detect when the photodetector provides a photo-current input above a threshold.

公开(公告)号：EP4268365A1

公开(公告)日：2023-11-01

申请号：EP22717489.3

申请日：2022-03-29

Applicant: Allegro MicroSystems, LLC

Inventor： MYERS, Charles ,  LEE, Adam

IPC: H03F3/08 ,  H04N5/33 ,  H03F3/45