公开(公告)号：US10193304B2

公开(公告)日：2019-01-29

申请号：US15200147

申请日：2016-07-01

Applicant: Intel Corporation

Inventor： Paul Winer ,  Krishna Swaminathan

IPC: H01S5/04 ,  H01S5/042 ,  H01S5/42 ,  H01S5/40 ,  G06T7/50 ,  H01S5/068

Abstract: A failsafe pulsed laser driver and method for using the same are disclosed. In one embodiment, an apparatus comprises a laser array having a plurality of lasers; and a laser driver coupled to the laser array, wherein the laser driver comprises a current limiter to provide a maximum current at or below a threshold current of lasers in the laser array or at a current level to meet laser safety requirements under circuit failure conditions; one or more capacitors coupled to current limiter and the laser array, the one or more capacitors to be charged in response to current from the current limiter; and a switch coupled to the one or more capacitors operable to cause current from the one or more capacitors to flow through the laser array.