Laser driving circuit

A laser drive and circuit technology, which is applied to circuits, lasers, and laser components, can solve the problems of many laser drive circuit components, large volume, and complex structure of the laser drive circuit.

Inactive Publication Date: 2018-10-09
成都楼兰科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there are many circuit devices and complex structures in the laser drive circuit, which leads to the problem of large volume of the laser drive circuit.

Method used

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Embodiment Construction

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0040] At present, multi-line lidar generally consists of an optical system, a laser drive circuit, a laser detection circuit, a time-of-flight measurement system, a time-of-flight control system, and a mechanical rotation device. Multi-line lidar includes: 16-line lidar, 24-line lidar, 32-line lidar, 64-line lidar and 128-line lidar, etc.

[0041] In practical applications, each la...

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Abstract

The invention provides a laser driving circuit which comprises a high voltage generating circuit and a plurality of pulse laser discharging circuits, wherein the pulse laser discharge circuits are connected in parallel to form a parallel circuit, and the high voltage generating circuit is connected with the parallel circuit in series. The high voltage generating circuit is used for outputting highvoltage signals to a plurality of pulse laser discharge circuits when high voltage control pulse signals are received. When the pulse laser discharge circuit is used for receiving high voltage signals and laser trigger signals, pulse signals are generated, and the technical problem that the size of the laser driving circuit is large in the prior art is solved. The technical effect of reducing thesize of the laser driving circuit is achieved.

Description

technical field [0001] The present invention relates to the technical field of laser driving circuits, in particular to a laser driving circuit. Background technique [0002] Multi-line lidar generally consists of an optical system, a laser drive circuit, a laser detection circuit, a time-of-flight measurement system, a time-of-flight control system, and a mechanical rotation device. Multi-line lidar includes: 16-line lidar, 24-line lidar, 32-line lidar, 64-line lidar and 128-line lidar, etc. [0003] In practical applications, each laser line of the multi-line laser radar is realized by a laser driving circuit, and each laser driving circuit requires a high-voltage generating circuit. Take the 128-line lidar as an example for illustration. The 128-line laser radar includes 128 laser driving circuits, and each of the 128 laser driving circuits includes a high-voltage generating circuit, that is, the 128 laser driving circuits include 128 high-voltage generating circuits. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S5/042
CPCH01S5/042
Inventor 徐韬朱建中陈丹李志彬
Owner 成都楼兰科技有限公司
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