CN112805586A - 激光发射电路和激光雷达 - Google Patents
激光发射电路和激光雷达 Download PDFInfo
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- CN112805586A CN112805586A CN201980064663.0A CN201980064663A CN112805586A CN 112805586 A CN112805586 A CN 112805586A CN 201980064663 A CN201980064663 A CN 201980064663A CN 112805586 A CN112805586 A CN 112805586A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/483—Details of pulse systems
- G01S7/484—Transmitters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
- H01S5/042—Electrical excitation ; Circuits therefor
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Abstract
一种激光发射电路和激光雷达,属于激光雷达领域。激光二极管(LD)由原来的与释能开关元件(Q2)的漏极相连更改为与储能电容(C2)的第二端相连,且储能电容(C2)的第二端通过激光二极管(LD)的阴极接地,将储能电容(C2)的第二端通过激光二极管(LD)给悬浮起来,即储能电容(C2)的第二端不再直接接地,这样的激光发射电路在转能阶段,释能开关元件(Q2)的寄生电容不会因转能充电过程而造成激光二极管(LD)提前发光,从而避免激光二极管(LD)在非预期时间发光,解决了激光漏光的问题。
Description
PCT国内申请,说明书已公开。
Claims (10)
- PCT国内申请,权利要求书已公开。
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CN202311075092.5A CN117169857A (zh) | 2019-10-17 | 2019-10-17 | 激光发射电路 |
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PCT/CN2019/111738 WO2021051466A1 (zh) | 2019-10-17 | 2019-10-17 | 激光发射电路和激光雷达 |
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CN202311075092.5A Division CN117169857A (zh) | 2019-10-17 | 2019-10-17 | 激光发射电路 |
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CN112805586A true CN112805586A (zh) | 2021-05-14 |
CN112805586B CN112805586B (zh) | 2023-09-26 |
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CN202311075092.5A Pending CN117169857A (zh) | 2019-10-17 | 2019-10-17 | 激光发射电路 |
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WO (1) | WO2021051466A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116413677A (zh) * | 2021-12-29 | 2023-07-11 | 深圳市速腾聚创科技有限公司 | 阳极选址驱动电路、可寻址驱动电路及激光发射电路 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016152336A (ja) * | 2015-02-18 | 2016-08-22 | 株式会社豊田中央研究所 | レーザダイオード駆動回路及びレーザレーダ装置 |
DE102016116875A1 (de) * | 2015-09-22 | 2017-03-23 | Analog Devices, Inc. | Gepulster Laserdiodentreiber |
CN206450825U (zh) * | 2016-12-08 | 2017-08-29 | 北京万集科技股份有限公司 | 一种双激光驱动电路和扫描式激光雷达测距设备 |
CN109391006A (zh) * | 2018-11-14 | 2019-02-26 | 深圳市速腾聚创科技有限公司 | 供能电路以及激光雷达装置 |
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2019
- 2019-10-17 CN CN201980064663.0A patent/CN112805586B/zh active Active
- 2019-10-17 WO PCT/CN2019/111738 patent/WO2021051466A1/zh active Application Filing
- 2019-10-17 CN CN202311075092.5A patent/CN117169857A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016152336A (ja) * | 2015-02-18 | 2016-08-22 | 株式会社豊田中央研究所 | レーザダイオード駆動回路及びレーザレーダ装置 |
DE102016116875A1 (de) * | 2015-09-22 | 2017-03-23 | Analog Devices, Inc. | Gepulster Laserdiodentreiber |
CN206450825U (zh) * | 2016-12-08 | 2017-08-29 | 北京万集科技股份有限公司 | 一种双激光驱动电路和扫描式激光雷达测距设备 |
CN109391006A (zh) * | 2018-11-14 | 2019-02-26 | 深圳市速腾聚创科技有限公司 | 供能电路以及激光雷达装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116413677A (zh) * | 2021-12-29 | 2023-07-11 | 深圳市速腾聚创科技有限公司 | 阳极选址驱动电路、可寻址驱动电路及激光发射电路 |
CN116413677B (zh) * | 2021-12-29 | 2024-02-06 | 深圳市速腾聚创科技有限公司 | 阳极选址驱动电路、可寻址驱动电路及激光发射电路 |
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Publication number | Publication date |
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CN117169857A (zh) | 2023-12-05 |
CN112805586B (zh) | 2023-09-26 |
WO2021051466A1 (zh) | 2021-03-25 |
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