公开(公告)号：EP4207950A1

公开(公告)日：2023-07-05

申请号：EP22216883.3

申请日：2022-12-28

申请人： Suteng Innovation Technology Co., Ltd

发明人： LI, Lee

IPC分类号： H05B45/44 ,  G01S17/894 ,  H01S5/40

摘要： This application discloses an anode addressing drive circuit, an addressable drive circuit, and a laser emission circuit. The anode addressing drive circuit includes: an anode addressing switch circuit, including an anode addressing switch element, where a first end of the anode addressing switch element is connected to an emission power supply, a second end is connected to an anode energy storage circuit, the anode addressing enabling end receives an anode addressing signal, and the anode addressing switch element is turned on or off under control of the anode addressing signal; and an anode energy storage circuit, including an anode energy storage element and a current limiting element, where the anode energy storage element is configured to be charged through output current from the emission power supply when the anode addressing switch circuit is turned on, and the current limiting element is configured to limit current for charging the anode energy storage element. In this application, current flowing through a parasitic capacitor to the laser is controlled to be less than the light emission current threshold of the laser when the anode energy storage element stores energy, thereby avoiding light leakage and consequential false light emission of the laser caused by the parallel parasitic capacitor in a charging stage and improving the light emission control accuracy of the laser array.