CN210536006U

CN210536006U - Semiconductor laser driving power supply system

Info

Publication number: CN210536006U
Application number: CN201921835403.2U
Authority: CN
Inventors: 董建康; 夏良道; 谢翰林
Original assignee: Ningbo Baisri Medical Technology Co Ltd
Current assignee: Ningbo Baisri Medical Technology Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-05-15
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses a semiconductor laser driving power supply system in the technical field of semiconductor laser driving, which comprises a singlechip control module, wherein a transmission port of the singlechip control module is electrically connected with an industrial personal computer, a power interface of the industrial personal computer is electrically connected with a second power supply module, a circuit of the second power supply module is provided with a second power supply switch module, the power interface of the industrial personal computer is electrically connected with a first power supply module, a circuit of the first power supply module is provided with a first power supply switch module, the transmission port of the singlechip control module is electrically connected with an LD driving module, the power interface of the LD driving module is electrically connected with the first power supply module, the power interface of the industrial personal computer is electrically connected with the first power supply module, an output port of the singlechip control module is electrically connected with a cooling fan, the system adopts modular design to facilitate subsequent maintenance and, when the parameters of the laser are modified, a system power supply does not need to be started, and misoperation of the laser is avoided.

Description

Semiconductor laser driving power supply system

Technical Field

The utility model discloses a semiconductor laser drive electrical power generating system specifically is semiconductor laser drive technical field.

Background

With the rapid development of scientific technology, semiconductor laser technology has been advanced into various fields of national economy and national defense construction. Semiconductor lasers have properties that are not comparable to other lasers, such as: a common laser such as a He-Ne laser adopts high-voltage excitation (about 1500V), and a semiconductor laser adopts low-voltage excitation of 3-5V, so that the excitation mode of the semiconductor laser is safer and the efficiency of the semiconductor laser is tens of times higher than that of a common laser; in some measuring instruments, the semiconductor laser is selected for illumination, so that the requirements of good monochromaticity, good coherence, light beam collimation, high precision and the like can be met, and the laser-based laser has wide application in the aspects of long-distance communication, laser radar, digital signal storage and recovery, laser ranging, robots, holographic application, medical diagnosis and the like. However, semiconductor lasers are very demanding in terms of operating conditions and can suffer from rapid deterioration or even failure of performance under inappropriate operating or storage conditions. Therefore, a laser driving power supply for normally operating the laser is very important. There are thus high demands on the performance of the laser driver in practical applications. The semiconductor Laser (LD) has the advantages of small volume, light weight, high conversion efficiency, long working life, etc., and is widely used in the fields of industry, military, medical treatment, etc. LD is a laser using current injection as an excitation method, and its service life and operating characteristics are greatly dependent on the performance of the driving power supply used. The semiconductor laser has poor surge impact resistance due to its own properties, which requires a driving power supply with high stability and low surge impact, and therefore, various protection circuits are required in the driving power supply to meet practical requirements. A slow start circuit, a TVS (transient suppressor) snubber circuit, a current limiting circuit, etc. are commonly used to prevent surge and excessive current. However, the working current of the high-power semiconductor laser is large, the semiconductor laser is fragile, and the traditional slow start circuit and the TVS absorption circuit cannot well meet the actual requirements.

The existing semiconductor laser mostly adopts a group of power modules when being driven, when the parameters of the laser are required to be modified, the power supply of the laser needs to be started, and a switch of the laser is disconnected, so that the safety factor is low, and the operation is complex.

Disclosure of Invention

An object of the utility model is to provide a semiconductor laser drive electrical power generating system to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a semiconductor laser driving power supply system comprises a single chip microcomputer control module, wherein a transmission port of the single chip microcomputer control module is electrically connected with an industrial personal computer, a power interface of the industrial personal computer is electrically connected with a second power supply module, a circuit of the second power supply module is provided with a second power supply switch module, the power interface of the industrial personal computer is electrically connected with a first power supply module, a circuit of the first power supply module is provided with a first power supply switch module, the transmission port of the single chip microcomputer control module is electrically connected with an LD driving module, the power interface of the LD driving module is electrically connected with the first power supply module, the power interface of the industrial personal computer is electrically connected with the first power supply module, an output port of the single chip microcomputer control module is electrically connected with a cooling fan, and an input port of the single chip microcomputer control module is, and the input port of the singlechip control module is electrically connected with an operation control module.

Preferably, the sensor module is composed of a temperature sensor, a current sensor, a power sensor and the like.

Preferably, the operation control module is composed of a foot switch module and a standby switching module.

Preferably, the first power module and the second power module are connected in parallel.

Preferably, diode isolation circuits are arranged on output circuits of the first power supply module and the second power supply module.

Compared with the prior art, the beneficial effects of the utility model are that:

1) the system consists of a power supply module, a single chip microcomputer control module, an LD driving module, an industrial personal computer and a sensor module, and the modular design is convenient for subsequent maintenance and simultaneously reduces the cost;

2) this system is provided with first power module and second power module, when only starting second power module, only starts single chip microcomputer control module and industrial computer, can set for the modification and save system's parameter this moment, and when only starting first power module, entire system work, this system adopts the modular design subsequent maintenance of being convenient for, and reduce cost need not to start system's power when carrying out the parameter modification to the laser instrument simultaneously, avoids the laser instrument maloperation to take place.

Drawings

Fig. 1 is a block diagram of a semiconductor laser driving power supply system according to the present invention;

fig. 2 is a block diagram of the sensor module system of the semiconductor laser driving power system of the present invention;

fig. 3 is a block diagram of the operation control module of the semiconductor laser driving power supply system of the present invention.

In the figure: the system comprises a 100 single-chip microcomputer control module, a 110 industrial personal computer, a 200 second power supply module, a 210 second power supply switch module, a 300 first power supply module, a 310 first power supply switch module, a 400 LD driving module, a 410 heat dissipation fan, a 500 sensor module, a 510 temperature sensor, a 520 current sensor, a 530 power sensor, a 600 operation control module, a 610 foot switch module and a 620 standby switching module.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a semiconductor laser drive electrical power generating system, adopt the modular design subsequent maintenance of being convenient for, reduce cost simultaneously, need not to start system's power when carrying out the parameter modification to the laser instrument, avoid the laser instrument maloperation to take place, please refer to fig. 1, including single chip microcomputer control module 100, single chip microcomputer control module 100's transmission port electric connection has industrial computer 110, and single chip microcomputer control module 100 is used for carrying out the laser mode that industrial computer 110 required to export, uploads industrial computer 110 to the settlement electric current, power, operating temperature etc. of laser instrument in real time simultaneously, guarantees that the output laser is stable and reliable;

referring to fig. 1 again, a power interface of the industrial personal computer 110 is electrically connected to a second power module 200, a second power switch module 210 is arranged on a circuit of the second power module 200, the second power module 200 is used for supplying power to the industrial personal computer 110 and the single-chip microcomputer control module 100, the second power module 210 is used for switching on and off the second power module 200, and the second power switch module 210 is switched on and off by a key;

referring to fig. 1 again, a power interface of the industrial personal computer 110 is electrically connected to a first power module 300, a first power switch module 310 is arranged on a circuit of the first power module 300, the first power module 300 is used for supplying power to the whole system, the first power switch module 310 is used for switching on and off the first power module 300, and the first power switch module 310 is switched on and off by a key;

referring to fig. 1 again, a transmission port of the single chip microcomputer control module 100 is electrically connected to the LD driving module 400, a power interface of the LD driving module 400 is electrically connected to the first power module 300, a power interface of the industrial personal computer 110 is electrically connected to the first power module 300, an output port of the single chip microcomputer control module 100 is electrically connected to a cooling fan 410, the LD driving module 400 is used for driving a laser, and the cooling fan 410 is used for cooling a high-power device of a driving power supply;

referring to fig. 1 and 2, an input port of the single chip microcomputer control module 100 is electrically connected with a sensor module 500, the sensor module 500 is composed of a temperature sensor 510, a current sensor 520, a power sensor 530 and the like, and the temperature sensor 510, the current sensor 520 and the power sensor 530 transmit the temperature, the current and the power consumption of the laser to the industrial personal computer 110 through the single chip microcomputer control module 100 in real time;

referring to fig. 1 and 2 again, the input port of the single chip microcomputer control module 100 is electrically connected to an operation control module 600, the operation control module 600 is composed of a foot switch module 610 and a standby switching module 620, when the user waits for the operation, the user only presses the foot switch to emit laser, when the user waits for the operation, the user presses the foot switch to stop emitting laser, and at this time, the laser parameters can be configured.

While the invention has been described above with reference to certain embodiments, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the various embodiments disclosed herein can be used in any combination with one another, and the description of such combinations that is not exhaustive in this specification is merely for brevity and resource saving. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A semiconductor laser driving power supply system characterized in that: the power supply device comprises a single chip microcomputer control module (100), wherein a transmission port of the single chip microcomputer control module (100) is electrically connected with an industrial personal computer (110), a power interface of the industrial personal computer (110) is electrically connected with a second power module (200), a circuit of the second power module (200) is provided with a second power switch module (210), the power interface of the industrial personal computer (110) is electrically connected with a first power module (300), a circuit of the first power module (300) is provided with a first power switch module (310), a transmission port of the single chip microcomputer control module (100) is electrically connected with an LD driving module (400), the power interface of the LD driving module (400) is electrically connected with the first power module (300), the power interface of the industrial personal computer (110) is electrically connected with the first power module (300), an output port of the single chip microcomputer control module (100) is electrically connected with a cooling fan (410), the input port electrical connection of single chip microcomputer control module (100) has sensor module (500), the input port electrical connection of single chip microcomputer control module (100) has operation control module (600).

2. The semiconductor laser driving power supply system according to claim 1, wherein: the sensor module (500) is composed of a temperature sensor (510), a current sensor (520), a power sensor (530) and the like.

3. The semiconductor laser driving power supply system according to claim 1, wherein: the operation control module (600) is composed of a foot switch module (610) and a standby switching module (620).

4. The semiconductor laser driving power supply system according to claim 1, wherein: the first power supply module (300) and the second power supply module (200) are connected in parallel.

5. The semiconductor laser driving power supply system according to claim 1, wherein: and diode isolation circuits are arranged on output circuits of the first power supply module (300) and the second power supply module (200).