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A High Power Laser Constant Current Source Driving Circuit

A technology of drive circuit and power circuit, applied in the field of high-power laser constant current source drive circuit

Active Publication Date: 2021-09-10
SHANGHAI INST OF SPACE POWER SOURCES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a high-power laser constant current source drive circuit, which can realize power expansion, realize soft switching technology by turning off and turning on the switching tube at the peak value of the inductor current and zero crossing point in a single cycle, and reduce the power consumption by synchronous rectification technology Loss, greatly improving the efficiency of this type of laser drive source, and solving the problem of high-quality power supply for space semiconductor lasers

Method used

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  • A High Power Laser Constant Current Source Driving Circuit
  • A High Power Laser Constant Current Source Driving Circuit
  • A High Power Laser Constant Current Source Driving Circuit

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Embodiment Construction

[0035] based on the following Figure 1 ~ Figure 4 , specifically describe the preferred embodiment of the present invention.

[0036] Such as figure 1 As shown, the present invention provides a high-power laser constant current source drive circuit, including:

[0037] A plurality of driving modules 1, the input terminals of each driving module 1 are connected in parallel at the input voltage V in At both ends, the output end of each drive module 1 is respectively connected to a laser load module 2 to provide power for the laser load module 2 .

[0038] further, such as figure 2 As shown, the drive module 1 includes:

[0039] Two BUCK power circuits 101 connected in parallel, the input terminals of each BUCK power circuit 101 are connected in parallel at the input voltage V in Both ends, the output end of each BUCK power circuit 101 is connected in parallel to both ends of the laser load module 2;

[0040] PI compensation circuit 102, its input terminal inputs the outp...

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Abstract

A high-power laser constant current source driving circuit, including multiple driving modules, each driving module includes two parallel BUCK power circuits, the input terminals of each BUCK power circuit are connected in parallel at both ends of the input voltage, each BUCK power circuit The output terminals of the laser load module are connected in parallel to both ends of the laser load module to provide power for the laser load module. The invention can realize power expansion, realize the soft switching technology by turning off and turning on the switch tube at the peak value of the inductor current and the zero crossing point in a single cycle, and reduce the loss through the synchronous rectification technology, which greatly improves the efficiency of this type of laser drive source High efficiency, which solves the problem of high-quality power supply for space semiconductor lasers.

Description

technical field [0001] The invention relates to the field of space laser power supply, in particular to a high-power laser constant current source driving circuit. Background technique [0002] With its excellent characteristics, semiconductor lasers (Laser Device, LD) play a pivotal role in military, medical, industrial production, optical fiber communication and other high-tech fields, and are currently one of the most widely used optical devices. Since the injection current and the stability of the operating temperature of the semiconductor laser have a direct and obvious impact on its output, it is of great significance to develop a high-stability semiconductor laser drive power supply. [0003] Since the semiconductor laser is a device with high quantum efficiency and relies on the direct injection of carriers to work, the stability of its driving current has a direct and obvious impact on its output, and a small current change will cause the output optical power to Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/158H01S5/042
CPCH01S5/042H02M3/158H02M1/0058Y02B70/10
Inventor 陈海涛赵旺彬黄军苗伟童董宇高科张华辉董宝磊吴春瑜靳洋
Owner SHANGHAI INST OF SPACE POWER SOURCES
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