Front-end circuit of photoelectric detector, photoelectric detector array, laser radar and ranging method

• Main Authors: ZHU WENYI, XIANG SHAOQING, ZHU XUEZHOU, WANG CHENLUAN, YAO TINGYU
• Format: Patent
• Language: Chinese; English
• Published: 14.06.2022
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; BASIC ELECTRONIC CIRCUITRY; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTRICITY; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; PULSE TECHNIQUE; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The embodiment of the invention discloses a front-end circuit of a photoelectric detector, a photoelectric detector array, a laser radar and a ranging method applied to the laser radar. According to one specific embodiment, the front-end circuit of the photoelectric detector comprises a quenching module and an active recovery module, the active recovery module comprises an oscillation unit, and the oscillation unit is suitable for generating a pulse oscillation signal to the output end of the active recovery module under the common action of a detection signal and a feedback signal. Therefore, through a pulse oscillation signal generated by an oscillation unit included in the active recovery module, the photoelectric detector is recovered to a working state capable of detecting photons again. 本公开的实施例公开了光电探测器的前端电路、光电探测器阵列、激光雷达和应用于激光雷达的测距方法。该光电探测器的前端电路的一具体实施方式包括淬灭模块及主动恢复模块，其中，主动恢复模块包括振荡单元，振荡单元适于在探测信号和反馈信号共同的作用下，产生脉冲振荡信号至主动恢复模块的输出端。从而，通过主动恢复模块所包括的振荡单元产生的脉冲振荡信号，将光电探测器恢复至可再次探测光子的工作状态。