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Semiconductor laser driving power supply controlled by single-chip microcomputer

A single-chip microcomputer control and laser-driven technology, which is applied in the field of electric power engineering, can solve problems such as easily damaged lasers, affecting the accuracy and stability of output, and optical power changes, and achieves the effect of strong anti-interference impact ability, safe and reliable protection

Inactive Publication Date: 2020-02-21
NORTHWEST A & F UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The operation of semiconductor lasers has a lot to do with the driving power supply. Many factors such as transient current or voltage spikes can easily damage the laser. Fluctuations in current and temperature will cause changes in optical power and affect the accuracy and stability of the output.

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  • Semiconductor laser driving power supply controlled by single-chip microcomputer

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Embodiment Construction

[0010] A semiconductor laser drive power supply controlled by a single-chip microcomputer is mainly composed of a CPU module 1, an AD conversion module 2, an optical power and temperature acquisition module 3, an LD module 4, a DA conversion module 5, a current source drive and protection module 6, and a temperature control circuit 7 and a cooler 8, characterized in that: the CPU module 1 is connected to the AD conversion module 2, the AD conversion module 2 is connected to the optical power and temperature acquisition module 3, and the optical power and temperature acquisition module 3 is connected to the LD module 4-phase connection, DA conversion module 5 is connected with CPU module 1, DA conversion module 5 is connected with current source drive and protection module 6, current source drive and protection module 6 is connected with LD module 4, temperature control circuit 7 and DA The conversion module 5 is connected, the refrigerator 8 is connected with the temperature co...

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Abstract

The invention discloses a semiconductor laser driving power supply controlled by a single-chip microcomputer and belongs to the technical field of electric power engineering. The semiconductor laser driving power supply is mainly composed of a CPU module, an AD conversion module, an optical power and temperature acquisition module, an LD module, a DA conversion module, a current source driving andprotecting module, a temperature control circuit and a refrigerator. According to the invention, the semiconductor laser driving power supply controlled by the single-chip microcomputer is high in anti-interference impact capacity, has soft-start and soft-off functions, and has a safe and reliable protection function.

Description

technical field [0001] The invention relates to a semiconductor laser drive power supply controlled by a single-chip microcomputer, belonging to the technical field of electric power engineering. Background technique [0002] The operation of a semiconductor laser has a lot to do with the driving power supply. Many factors such as transient current or voltage spikes can easily damage the laser. Fluctuations in current and temperature will cause changes in optical power, affecting the accuracy and stability of the output. At present, the output power of commercialized semiconductor lasers is increasing, and the wavelength range covers visible and infrared. people's attention.. The invention develops a semiconductor laser driving power supply controlled by a single-chip microcomputer. Contents of the invention [0003] In view of the above disadvantages, the present invention provides a semiconductor laser drive power supply controlled by a single chip microcomputer. [0...

Claims

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Application Information

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IPC IPC(8): H01S5/042H01S5/024
CPCH01S5/02407H01S5/042
Inventor 马驰朱悦张鹏
Owner NORTHWEST A & F UNIV