Overcurrent latch-up protective circuit of pumping laser

A pumping laser, blocking protection technology, applied in lasers, laser parts, semiconductor lasers, etc., can solve the problems of easy burning lasers, expensive pumping lasers, etc., to achieve the effect of stable operation and protection from being burned

Inactive Publication Date: 2013-10-02
广东东研网络科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the pump laser is very expensive, and it is easy to burn the laser if it encounters an instantaneous shock and a sudden high current

Method used

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  • Overcurrent latch-up protective circuit of pumping laser

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Embodiment Construction

[0019] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] -Such as figure 1 As shown, the pump laser overcurrent blocking protection circuit of the present invention includes:

[0021] The current sampling part A, when the pump laser overcurrent blocking protection circuit is powered on, samples the current that will be loaded to Laser. The sampling current is output to the sampling current analysis part B, the current adjustment part C and the overcurrent monitoring part;

[0022] The sampling current analysis part B, when the sampling current is delivered to the sampling current analysis part B, the sampling current analysis part B performs voltage conversion on the sampling current, and then sends it to the single chip microcomputer for analog-to-digital conversion, and analyzes the converted signal; the sampling current The analysis part B outputs a voltage-current comparison signal,...

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Abstract

The invention discloses an overcurrent latch-up protective circuit of a pumping laser. The overcurrent latch-up protective circuit comprises a current sampling part A, a sampling current analysis part B, a current adjusting part C, an overcurrent detecting part D and an overcurrent protection part E. The overcurrent latch-up protective circuit of the pumping laser has the advantages that the current sampling part, the sampling current analysis part and the current adjusting part are arranged, so that the current can be adjusted in real time, and the operation of the laser is more stable; and the overcurrent detecting part and the overcurrent protection part are arranged, so that the laser can be protected from being burned down when sudden high-current occurs.

Description

technical field [0001] The invention relates to an overcurrent detection circuit used by a laser, in particular to an overcurrent blocking protection circuit for a pumping laser. Background technique [0002] Diode Pump Solid State Laser (English full name: Diode Pump Solid State Laser) is a new type of laser with the fastest development and wide application in the world in recent years. This type of laser uses a fixed-wavelength semiconductor laser instead of the traditional krypton lamp or xenon lamp to pump the laser crystal, and thus has achieved a new development, which is called the second-generation laser. This is a second-generation new solid-state laser with high efficiency, long life, high beam quality, good stability, and compact structure. It has been used in space communication, optical fiber communication, atmospheric research, environmental science, medical equipment, and optical imaging. Processing, laser printers and other high-tech fields have unique appli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/09H01S5/042
Inventor 涂刚王勇肖军
Owner 广东东研网络科技股份有限公司
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