CN208299199U - A kind of Distributed Feedback Laser drive circuit board - Google Patents
A kind of Distributed Feedback Laser drive circuit board Download PDFInfo
- Publication number
- CN208299199U CN208299199U CN201820800164.6U CN201820800164U CN208299199U CN 208299199 U CN208299199 U CN 208299199U CN 201820800164 U CN201820800164 U CN 201820800164U CN 208299199 U CN208299199 U CN 208299199U
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- module
- current
- circuit
- distributed feedback
- drive circuit
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Abstract
The utility model discloses a kind of Distributed Feedback Laser drive circuit boards, including circuit distribution module, pin interface, USB RS 232 serial port chip, current overload detection module, current error correction verification module, protection circuit, monitoring circuit；The protection circuit, including thermistor, temperature control modules, temperature setting module, semiconductor chilling plate, laser temperature display module, cooling piece current/voltage display module；The monitoring module, including laser diode, photodiode, photoelectricity stream number amplification module, backwards optical signal display module, laser diode current/voltage display module.The utility model is powered using 5V direct-current switch power supply, Switching Power Supply independently of drive circuit board outside, reduce the integrated of regulator rectifier circuit, and then interference of the reduction to signal acquisition, entire power supply has no the very big device of calorific value, eliminates bulky cooling fin, entire driving plate is small in size, and it is cheap, it is easy to use.
Description
Technical field
The utility model relates to laser actuation techniques field more particularly to a kind of Distributed Feedback Laser drive circuit boards.
Background technique
Existing DFB laser driven power supply is the equipment of import, and volume is larger, expensive.Domestic production at present swashs
Photoelectric source only considers to export direct current voltage output function, without temperature controller and backwards to light monitoring function.Product connects
Mouth is and universal DC is exported, and to being transformed into, DFB laser driven power supply is troublesome.
Utility model content
To overcome existing laser to drive technical problem inconvenient for use, the utility model provides a kind of Distributed Feedback Laser
Drive circuit board.
To achieve the above object, the utility model provides the following technical solutions: a kind of Distributed Feedback Laser drive circuit board, packet
Include circuit distribution module, pin interface, USB RS 232 serial port chip, current overload detection module, current error correction verification module,
Protect circuit, monitoring circuit；The input terminal and power module of the circuit distribution module are electrically connected, the circuit distribution module
Output end respectively with pin interface, USB RS 232 serial port chip, protection circuit, monitoring circuit connection；The protection circuit,
Including thermistor, temperature control modules, temperature setting module, semiconductor chilling plate, laser temperature display module, cooling piece
Current/voltage display module；The monitoring circuit, including laser diode, photodiode, photoelectricity stream number amplification module, back
To optical signal display module, laser diode current/voltage display module.
Preferably, the USB RS 232 serial port chip is connect by USB interface with PC machine, wherein PC machine, including control
Switch, current input module and current limliting module, wherein current input module and current limliting module are connect with current overload detection module,
The current overload detection module is equipped with warning light；The current overload detection module and current error correction verification module connect
It connects, the output end laser diode connection of the current error correction verification module.
Preferably, the circuit distribution module passes through the external Distributed Feedback Laser of pin interface.
Preferably, the power module is 5V DC power supply.
Compared with the existing technology, the beneficial effects of the utility model are: powering using 5V direct-current switch power supply, switch
Power supply independently of drive circuit board outside, reduce the integrated of regulator rectifier circuit, and then reduce the interference to signal acquisition, entire electricity
Source has no the very big device of calorific value, eliminates bulky cooling fin, and entire driving plate is small in size, cheap, function
It is perfect, it is easy to use.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the electrical block diagram of the utility model.
Drawing reference numeral explanation:
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
The utility model proposes a kind of Semiconductor Laser coupling tail fibers.
Incorporated by reference to referring to Fig.1, Fig. 2, the utility model provides a kind of Distributed Feedback Laser drive circuit board, including circuit distribution
Module 10, pin interface 20, USB RS 232 serial port chip 30, current overload detection module 40, current error correction verification module 50,
Protect circuit 60, monitoring circuit 70；The input terminal and power module 80 of the circuit distribution module 10 are electrically connected, power module
80 be 5V DC power supply.
The output end of circuit distribution module 10 respectively with pin interface 20, USB RS 232 serial port chip 30, protection circuit
60, monitoring circuit 70 connects；The protection circuit 60, including thermistor 601, temperature control modules 602, temperature setting module
603, semiconductor chilling plate 604, laser temperature display module 605, cooling piece current/voltage display module 606；The prison
Control circuit 70, including laser diode 701, photodiode 702, photoelectricity stream number amplification module 703, backwards optical signal display mould
Block 704, laser diode current/voltage display module 705.
Circuit distribution module 10 passes through the external Distributed Feedback Laser 90 of pin interface 20.
USB RS 232 serial port chip 30 is connect by usb 1 00 with PC machine 110, wherein PC machine 110, including control
Switch 1101, current input module 1102 and current limliting module 1103, wherein current input module 1102 and current limliting module 1103 with
Current overload detection module 40 connects, which is equipped with warning light 120；The current overload inspection
It surveys module 40 to connect with current error correction verification module 50, the output end laser diode 701 of the current error correction verification module 50 connects
It connects.
In the present embodiment, first by the external 5V DC power supply 80 of circuit board 1；Because circuit board 1 is equipped with USB RS 232 serial ports
Chip 30 need to only connect circuit board 1 with PC machine 110 with USB line, select corresponding communication interface, can communicate；Then will
Distributed Feedback Laser 90 is connect with the pin interface 20 on circuit board 1；Current limliting module 1103 is first passed through in PC machine 110 sets one
Maximum current limit value is then arranged a current value (0~1500mA) by current input module 1102, while clicking control
1101 key of switch, exports electric current；If the electric current of setting is more than maximum limit value, current overload detection module 40 is controlled
Warning light 120 flashes, and does not trigger output；When setting electric current is less than maximum limit value, triggering output；Circuit 70 is monitored simultaneously
90 electric current of Distributed Feedback Laser can be monitored in time and feed back to current error correction verification module 50, adjustment output electric current, it is ensured that the electricity of output
Stream is consistent with actual electric current, and is shown by DFB laser diode current/voltage display module 705；Monitor the light in circuit 70
Electric diode 701 monitors the optical power that Distributed Feedback Laser 90 exports backwards, if laser diode 701 shines, wherein laser meeting
It feeds back photodiode 702 and becomes photoelectric current, photoelectric current passes through back by the amplification output of photo-signal amplification module 703
It is shown to optical signal display module 704；It protects in circuit 60, thermistor 601 monitors the temperature inside Distributed Feedback Laser 90 in real time
Degree, if the setting value of temperature departure temperature setting module 603, semiconductor chilling plate 604 is by work, by freezing or heating
90 internal temperature of Distributed Feedback Laser is adjusted, and is shown by Distributed Feedback Laser temperature display module 605.
The utility model using 5V direct-current switch power supply power, Switching Power Supply independently of drive circuit board outside, reduce
Regulator rectifier circuit integrates, and then reduces the interference to signal acquisition, and entire power supply has no the very big device of calorific value, saves
Bulky cooling fin, entire driving plate is small in size, while drive circuit board setting general-purpose pin interface and customized drawing
Foot interface facilitates different types of Distributed Feedback Laser to use.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
It is all under the inventive concept of the utility model, equivalent structure made based on the specification and figures of the utility model becomes
It changes, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (4)
1. a kind of Distributed Feedback Laser drive circuit board, including circuit distribution module, pin interface, USB RS 232 serial port chip, electricity
Stream overload detection module, current error correction verification module, protection circuit, monitoring circuit；It is characterized in that, the circuit distribution module
Input terminal and power module be electrically connected, the output end of the circuit distribution module respectively with pin interface, USB RS 232 string
Mouth chip, protection circuit, monitoring circuit connection；The protection circuit, including the setting of thermistor, temperature control modules, temperature
Module, semiconductor chilling plate, laser temperature display module, cooling piece current/voltage display module；The monitoring circuit, packet
Include laser diode, photodiode, photoelectricity stream number amplification module, aobvious backwards to optical signal display module, laser diode current/voltage
Show module.
2. a kind of Distributed Feedback Laser drive circuit board according to claim 1, which is characterized in that the USB RS 232 string
Mouth chip is connect by USB interface with PC machine, wherein PC machine, including control switch, current input module and current limliting module, wherein
Current input module and current limliting module are connect with current overload detection module, which is equipped with caution signal
Lamp；The current overload detection module is connect with current error correction verification module, the output end laser of the current error correction verification module
Diode connection.
3. a kind of Distributed Feedback Laser drive circuit board according to claim 1, which is characterized in that the circuit distribution module
Pass through the external Distributed Feedback Laser of pin interface.
4. a kind of Distributed Feedback Laser drive circuit board according to claim 1, which is characterized in that the power module is 5V
DC power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820800164.6U CN208299199U (en) | 2018-05-28 | 2018-05-28 | A kind of Distributed Feedback Laser drive circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820800164.6U CN208299199U (en) | 2018-05-28 | 2018-05-28 | A kind of Distributed Feedback Laser drive circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208299199U true CN208299199U (en) | 2018-12-28 |
Family
ID=64727077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820800164.6U Expired - Fee Related CN208299199U (en) | 2018-05-28 | 2018-05-28 | A kind of Distributed Feedback Laser drive circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208299199U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110690644A (en) * | 2019-09-12 | 2020-01-14 | 北京航天易联科技发展有限公司 | DFB laser device with stable output |
| CN112968353A (en) * | 2021-02-03 | 2021-06-15 | 吉林大学 | Driving system and driving method for pumping source of ultrashort pulse laser |
-
2018
- 2018-05-28 CN CN201820800164.6U patent/CN208299199U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110690644A (en) * | 2019-09-12 | 2020-01-14 | 北京航天易联科技发展有限公司 | DFB laser device with stable output |
| CN112968353A (en) * | 2021-02-03 | 2021-06-15 | 吉林大学 | Driving system and driving method for pumping source of ultrashort pulse laser |
| CN112968353B (en) * | 2021-02-03 | 2022-03-08 | 吉林大学 | Driving method of driving system for pumping source of ultrashort pulse laser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181228 Termination date: 20210528 |
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| CF01 | Termination of patent right due to non-payment of annual fee |