公开(公告)号：US10447008B2

公开(公告)日：2019-10-15

申请号：US16156147

申请日：2018-10-10

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Yu-Cheng Song ,  Chih-Chun Chen ,  Fu-Shun Ho ,  Chien-Hung Lu

IPC: H01S5/042 ,  H01S5/0687 ,  H01S5/068

Abstract: A laser driver device is provided, which includes a control circuit, a driver circuit and a feedback circuit. The control circuit receives setup data and convert the setup data into a setup signal. The driver circuit receives the setup signal and generates a drive current according to the setup signal to drive a laser light source. The feedback circuit receives the setup data and the feedback signal of the laser light source and compares the setup data with the feedback signal to generate an adjust signal. The driver circuit receives the adjust signal and adjusts the drive current according to the adjust signal.