TRANSMITTER CIRCUIT FOR LASER RADAR AND METHOD FOR DETECTING DRIVING CURRENT OF TRANSMITTER CIRCUIT

WIPO Patent Application WO/2022/127077

A1

A transmitter circuit for a laser radar and a method for detecting a driving current of the transmitter circuit, the transmitter circuit comprising: a driving circuit (11), which is used for applying a driving voltage to at least one laser (13), so that the at least one laser (13) emits light; a detection circuit (12), which comprises a voltage dividing portion (121) and a sampling unit (122) and used for detecting a driving current when the at least one laser (13) emits light, wherein the voltage dividing portion (121) is configured to divide the driving voltage, so as to output a voltage dividing signal to the sampling unit (122); and the sampling unit (122), which is configured to sample, according to a system clock signal of the transmitter circuit, the voltage dividing signal that is output from the voltage dividing portion (121), so as to obtain a corresponding sampling value. The method for detecting a driving current of a transmitter circuit corresponds to the transmitter circuit.

LI HONGYU (CN)
LIU JIANFENG (CN)
XIANG SHAOQING (CN)

PCT/CN2021/104001

June 23, 2022

July 01, 2021

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HESAI TECHNOLOGY CO LTD (CN)

G01S7/484; G01R15/22; G01R19/25; H01S3/09; H01S5/042

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BEIJING LAWSING IP FIRM (CN)

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