A dual-power high-power collimator protection circuit

Abstract

The invention discloses a double-power supply high-power collimator protection circuit, which is composed of a first power supply joint 1, a second power supply joint 2, a conventional enameled wire 3, a low-temperature fused enameled wire 4, a temperature switch 5, a protection resistor 6, a photosensitive resistor 8 and an N555 integrated control relay switch circuit board 7 with delay. Through the low-temperature fused enameled wire 4, the temperature switch 5 and the photosensitive resistor-relay switch, a high-power laser output fiber, a high-power collimator shell heating part and a part which leaks light inside the device are protected. Due to the three layers of protection, the protection circuit is automatically cut off in the case of a problem, the delay function enables a power supply for controlling the laser to be automatically cut off and a role of protecting the laser system is played. Due to the integrated circuit and a linear link, the structure of the protection circuit is compact, the volume is smaller, and the temperature switch and the delay relay can be used repeatedly. Thus, the high-power collimator can be used more safely, and the protection circuit is more intelligent, practical and convenient.

Description

technical field [0001] The invention relates to the fields of laser processing, laser communication, laser medical treatment, military affairs, scientific research and the like, in particular to a protection circuit for a high-power collimator with dual power supplies. Background technique [0002] Modern high-power laser products are widely used in optical fiber sensing, laser communication, laser processing, medical, military, scientific research and other fields. Because high-power laser products are often affected by the external environment when they are used, the temperature, humidity, and air cleanliness will be affected. It affects its own life, and this effect often forms a vicious circle under the action of high-power lasers, which makes laser products age rapidly. As a result, not only the product itself is damaged, but the high-power laser is scattered or reflected to the laser pump. Pu or other photoelectric equipment, it is very easy to cause the whole system t...

AI Technical Summary

Problems solved by technology

[0002] Modern high-power laser products are widely used in optical fiber sensing, laser communication, laser processing, medical, military, scientific research and other fields. Because high-power laser products are often affected by the external environment when they are used, the temperature, humidity, and air cleanliness will be affected. It affects its own life, and this effect often forms a vicious circle under the action of high-power lasers, which makes laser products age rapidly. As a result, not only the product itself is damaged, but the high-power laser is scattered or reflected to the laser pump. Pu or other photoelectric equipment, it is very easy to cause the whole system to be burned out and paralyzed

The current high-power laser products are all single-point protection for the concentrated location of the problem. It is common to use a single copper enameled wire as a protection circuit in foreign countries. However, the melting point of copper enameled wire is very high, and there are many factors that cause damage to high-power laser products. The size and effect are not the same. It often happens that the protection circuit is intact, but the laser product or even the entire laser system has problems.

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