CN210128717U - ADN 8835-based light-emitting diode temperature control device for fiber-optic gyroscope - Google Patents
ADN 8835-based light-emitting diode temperature control device for fiber-optic gyroscope Download PDFInfo
- Publication number
- CN210128717U CN210128717U CN201920419491.1U CN201920419491U CN210128717U CN 210128717 U CN210128717 U CN 210128717U CN 201920419491 U CN201920419491 U CN 201920419491U CN 210128717 U CN210128717 U CN 210128717U
- Authority
- CN
- China
- Prior art keywords
- module
- light source
- fiber
- emitting diode
- control device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Gyroscopes (AREA)
Abstract
The utility model relates to a emitting diode temperature control device for fiber-optic gyroscope based on ADN8835, including the light source, still include thermistor, target temperature setting module and controller, the target temperature setting module includes divider resistor, and during thermistor located the light source, constitute bleeder circuit with divider resistor, and bleeder circuit's partial pressure output was connected with the input of controller, and the controller still is connected with the input of light source. Compared with the prior art, the utility model discloses utilize bleeder resistor and thermistor to constitute bleeder circuit, can realize the collection to the SLD temperature to the realization is to the control of its temperature.
Description
Technical Field
The utility model relates to a diode temperature control device especially relates to a emitting diode temperature control device for fiber-optic gyroscope based on ADN 8835.
Background
A Fiber Optic Gyroscope (FOG) is an angular rate fiber optic sensor, is a device for sensing relative inertial space angular motion, and is one of the main sensors currently used for determining the spatial motion attitude of a moving body. With the development of FOG, the miniaturization requirement is more and more intense, and the short board of the existing mainstream temperature control circuit scheme is more and more obvious, because of the particularity of the working environment of the fiber-optic gyroscope, the working temperature of the light source tube core is generally required to be set at 25 ℃, but the user generally requires that the working time of the fiber-optic gyroscope is not more than 4s from the starting to the stable working under the extreme environment, which puts a very high requirement on the temperature control circuit of the light source. The traditional scheme has low temperature control efficiency, causes overhigh power consumption and high space occupancy rate, and causes the problems of heat productivity interference on the FOG precision and the like, thereby seriously obstructing the improvement of the performance of the FOG system.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a LED temperature control device for fiber-optic gyroscope based on ADN8835 in order to overcome the defects of the prior art.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides a fibre-optic gyroscope is with emitting diode temperature control device based on ADN8835, includes the light source, still includes thermistor, target temperature setting module and controller, target temperature setting module includes divider resistor, thermistor locate in the light source, with divider resistor constitutes bleeder circuit, and bleeder circuit's partial pressure output is connected with the input of controller, the controller still is connected with the input of light source.
The controller comprises a reference voltage module, and the output end of the reference voltage module is connected to the voltage division circuit.
The controller comprises a temperature measurement amplification module, a PWM control module and a driving current output module which are sequentially connected, the temperature measurement amplification module is connected with the voltage division output end of the voltage division circuit, and the driving current output module is connected with the input end of the light source.
The controller is ADN 8835.
The light source comprises a shell, a light emitting diode and a semiconductor refrigerator, wherein the thermistor, the light emitting diode and the semiconductor refrigerator are all arranged in the shell, and the semiconductor refrigerator is connected to the driving current output module.
The thermistor and the semiconductor refrigerator are positioned on two sides of the light emitting diode.
Compared with the prior art, the utility model discloses following beneficial effect has:
1) a voltage division circuit is formed by the voltage division resistor and the thermistor, so that the SLD temperature can be acquired, and the temperature of the SLD can be controlled.
2) By using the reference voltage carried by the ADN8835, components can be reduced, and the volume of a product is reduced.
3) Because the inside of the ADN8835 chip is integrated with a high-power MOSFET, the advantage greatly saves the board distribution space, and the PWM control module can be directly utilized to control the MOSFET TEC driving current output module in the ADN8835 chip.
4) The thermistor and the semiconductor refrigerator are positioned on two sides of the light emitting diode, so that temperature measurement detection deviation caused by too close distance can be avoided, and the control effect is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a light source section;
FIG. 3 is a schematic diagram of a PID control network;
wherein: 1. the device comprises a light source, 2, a target temperature setting module, 3, a controller, 4, a reference voltage, 5, a PID compensation network, 6, a PWM frequency setting module, 7, a TEC driving current peak value setting module, 11, a thermistor, 12, a shell, 13, a light emitting diode, 14, a semiconductor refrigerator, 31, a temperature measurement amplifying module, 32, a PWM control module and 33, and a driving current output module.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
The utility model provides a light emitting diode temperature control device for fiber optic gyroscope based on ADN8835, as shown in fig. 1, includes light source 1, still includes thermistor 11, target temperature setting module 2 and controller 3, and target temperature setting module includes divider resistor, and thermistor 11 locates in the light source 1, constitutes bleeder circuit with divider resistor, and bleeder circuit's partial pressure output is connected with the input of controller 3, and controller 3 still is connected with the input of light source 1.
The controller comprises a reference voltage module, and an output end of the reference voltage module is connected to the voltage division circuit.
The controller comprises a temperature measurement amplifying module 31, a PWM control module 32 and a driving current output module 33 which are sequentially connected, the temperature measurement amplifying module 31 is connected with the voltage division output end of the voltage division circuit, and the driving current output module 33 is connected with the input end of the light source 1.
As shown in fig. 2, the light source 1 includes a housing 12, a light emitting diode 13, and a semiconductor cooler 14, the thermistor 11, the light emitting diode 13, and the semiconductor cooler 14 are disposed in the housing 12, and the semiconductor cooler 14 is connected to a driving current output module 33. The thermistor 11 and the semiconductor cooler 14 are located on both sides of the light emitting diode 13.
Preferably, the controller is ADN8835, the semiconductor cooler 14 is TEC, and is built-in TEC of SLD, wherein SLD can be selected from SLD-BF 8-1310-0.4-S-09-1-FC/UPC-C2-1, the PID control network is shown in FIG. 3, and the parameters of each element in FIG. 3 are shown in Table 1:
TABLE 1
| R1 | 64.9kΩ |
| RD | 374kΩ |
| CD | 0.01uF |
| RP | 562kΩ |
| C1 | 10uF |
| CF | 0.01uF |
Under the normal working condition of the gyroscope, the tube core of the light source 1 emits light, and in order to ensure that the temperature of the tube core of the light source 1 is kept constant at 25 ℃ in the optimal state, the TEC carried in the light source 1 needs to output control current so as to achieve the purpose of keeping the temperature of the tube core of the light source 1 constant. A resistance bridge composed of an external resistor and a thermistor arranged in the detection light source 1 is used as a target temperature setting module 2, a reference voltage 4 can be generated on the target temperature setting module 2 by utilizing a reference voltage arranged in an ADN8835, the voltage is a stable constant value under normal working conditions, when the thermistor changes due to the temperature change of a tube core of the light source 1, the target temperature setting module 2 generates a pressure difference and feeds the pressure difference back to a PWM control module 32 through a temperature measurement amplification module 31, the PWM control module 32 controls the output current direction of a MOSFET TEC driving current output module 33 according to the feedback value of the temperature measurement amplification module 31 so as to control the refrigeration or heating of the TEC of the light source 1; meanwhile, the working frequency of the PWM control module 32 is set to 2MHz by the externally set PWM frequency setting module 6, so as to achieve the maximum energy conversion efficiency. Because the temperature control is a positive and negative interval fluctuation control state, the output value of the reference voltage module 4 will have a certain frequency jitter, the external PID compensation network 5 can automatically adjust the balance through the feedback value of the reference voltage module 4, and can improve the stability of the PWM control module 32 and reduce the noise, so as to obtain the optimal temperature establishment time. Because the inside of the ADN8835 chip is integrated with a high-power MOSFET, the advantage of greatly saving the board distribution space can be realized, the PWM control module 32 can be directly utilized to control the MOSFET TEC driving current output module 33 in the ADN8835 chip, the scheme of half switch output and half linear output is adopted, half output ripple current is reduced, peripheral devices can be reduced, and the temperature control efficiency is improved. In order to realize the characteristic of quick start of the fiber-optic gyroscope in an extreme environment, the maximum output peak current of the MOSFET TEC driving current output module 33 is set to be 3A through the TEC driving current peak value setting module 7, and the tube core of the light source 1 is controlled to a target set point through energy conversion through instantaneous high-power output, so that the quick start of the fiber-optic gyroscope is realized.
Claims (6)
1. The utility model provides a light emitting diode temperature control device for fiber-optic gyroscope based on ADN8835, includes light source (1), its characterized in that still includes thermistor (11), target temperature setting module (2) and controller (3), target temperature setting module includes divider resistor, during light source (1) was located in thermistor (11), with divider resistor constitutes bleeder circuit, and bleeder circuit's partial pressure output is connected with the input of controller (3), controller (3) still are connected with the input of light source (1).
2. The ADN 8835-based light-emitting diode temperature control device for the fiber-optic gyroscope as claimed in claim 1, wherein the controller comprises a reference voltage module, and the output end of the reference voltage module is connected to the voltage dividing circuit.
3. The ADN 8835-based LED temperature control device for the fiber-optic gyroscope is characterized in that the controller comprises a temperature measurement amplifying module (31), a PWM control module (32) and a driving current output module (33) which are connected in sequence, wherein the temperature measurement amplifying module (31) is connected with a voltage division output end of a voltage division circuit, and the driving current output module (33) is connected with an input end of the light source (1).
4. The ADN 8835-based light-emitting diode temperature control device for the fiber-optic gyroscope as claimed in claim 2 or 3, wherein the controller is ADN 8835.
5. An ADN 8835-based LED temperature control device for a fiber-optic gyroscope according to claim 3, characterized in that the light source (1) comprises a housing (12), an LED (13) and a semiconductor refrigerator (14), the thermistor (11), the LED (13) and the semiconductor refrigerator (14) are all arranged in the housing (12), and the semiconductor refrigerator (14) is connected to the driving current output module (33).
6. An ADN 8835-based light-emitting diode temperature control device for a fiber-optic gyroscope, as claimed in claim 5, wherein the thermistor (11) and the semiconductor refrigerator (14) are located at both sides of the light-emitting diode (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920419491.1U CN210128717U (en) | 2019-03-29 | 2019-03-29 | ADN 8835-based light-emitting diode temperature control device for fiber-optic gyroscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920419491.1U CN210128717U (en) | 2019-03-29 | 2019-03-29 | ADN 8835-based light-emitting diode temperature control device for fiber-optic gyroscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210128717U true CN210128717U (en) | 2020-03-06 |
Family
ID=69661492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920419491.1U Active CN210128717U (en) | 2019-03-29 | 2019-03-29 | ADN 8835-based light-emitting diode temperature control device for fiber-optic gyroscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210128717U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113970907A (en) * | 2021-09-22 | 2022-01-25 | 河北汉光重工有限责任公司 | Control tool for batch production of fiber-optic gyroscopes |
| CN114034321A (en) * | 2021-11-30 | 2022-02-11 | 重庆华渝电气集团有限公司 | Optical fiber gyroscope temperature test device and implementation method of test environment |
-
2019
- 2019-03-29 CN CN201920419491.1U patent/CN210128717U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113970907A (en) * | 2021-09-22 | 2022-01-25 | 河北汉光重工有限责任公司 | Control tool for batch production of fiber-optic gyroscopes |
| CN114034321A (en) * | 2021-11-30 | 2022-02-11 | 重庆华渝电气集团有限公司 | Optical fiber gyroscope temperature test device and implementation method of test environment |
| CN114034321B (en) * | 2021-11-30 | 2023-08-15 | 重庆华渝电气集团有限公司 | Optical fiber gyroscope temperature test device and implementation method of test environment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210128717U (en) | ADN 8835-based light-emitting diode temperature control device for fiber-optic gyroscope | |
| CN203338172U (en) | Semiconductor laser constant current drive and temperature control system | |
| ATE483596T1 (en) | VARIABLE SPEED CONTROL | |
| CN103208738A (en) | Semiconductor laser device driving device | |
| CN105786047A (en) | Semiconductor laser temperature control system based on TEC | |
| CN206451976U (en) | TEC controls circuit and TEC controllers | |
| CN103236644B (en) | Regulate method and the device of small package hot-pluggable optical module working temperature | |
| CN204741166U (en) | Sharp light controlling circuit that power is adjustable | |
| CN104331102A (en) | TEC-based laser temperature control circuit | |
| CN103052232A (en) | Automatic adjusting method for LED (Light Emitting Diode) luminous flux | |
| CN212112252U (en) | Laser temperature control circuit based on nationwide production device | |
| CN203277961U (en) | Semiconductor laser device drive apparatus | |
| CN204377193U (en) | Constant current driver circuit for LED and Switching Power Supply driving chip thereof | |
| CN103338551A (en) | Method employing temperature compensation to stabilize LED lamp temperature | |
| CN203690702U (en) | Laser tube driving circuit for infrared sensor | |
| CN102883506B (en) | Method for dynamically controlling temperature of central area of array light emitting diode (LED) lighting lamp | |
| CN203026791U (en) | Intelligent adjustable light source device | |
| CN203232277U (en) | A high-precision temperature generator based on a microprocessor | |
| CN111459206B (en) | Temperature control stabilizing device and control method thereof | |
| CN204615150U (en) | Based on the low drifting laser attemperating unit of double T EC | |
| CN114628991A (en) | Tunable semiconductor laser driving device | |
| CN220985114U (en) | TEC drive circuit | |
| CN202269066U (en) | LED bulb lamp driver with temperature control | |
| CN202222065U (en) | Constant current module of LED lamp | |
| CN216289482U (en) | Pulse generator with adjustable time and amplitude |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201801 1a, 1b, 1C, 1f, building 1, No. 618, chengliuzhong Road, Jiading District, Shanghai; 2a, 2f; 3a, 3F; 4A, 4f; 5a, 5F; 6a, 6F Patentee after: Shanghai Aoshi Control Technology Co., Ltd Address before: 201801 1a, 1b, 1C, 1f, building 1, No. 618, chengliuzhong Road, Jiading District, Shanghai; 2a, 2f; 3a, 3F; 4A, 4f; 5a, 5F; 6a, 6F Patentee before: SHANGHAI HENGTONG PHOTOELECTRIC TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |