CN201967200U - Super radiation light-emitting diode driving circuit with temperature adjusting function - Google Patents
Super radiation light-emitting diode driving circuit with temperature adjusting function Download PDFInfo
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- CN201967200U CN201967200U CN2010206861209U CN201020686120U CN201967200U CN 201967200 U CN201967200 U CN 201967200U CN 2010206861209 U CN2010206861209 U CN 2010206861209U CN 201020686120 U CN201020686120 U CN 201020686120U CN 201967200 U CN201967200 U CN 201967200U
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Abstract
The utility model relates to the light-emitting diode driving circuit field, in particular to a super radiation light-emitting diode driving circuit with temperature adjusting function. The driving circuit is used for the performance test of the super radiation light-emitting diode and comprises a constant current driving module, a temperature control module and a light power acquisition system which are respectively coupled with the super radiation light-emitting diode, wherein the light power acquisition system is connected with a computer. The driving circuit is characterized in that: the constant current driving module is coupled with a current setting adjusting resistor so as to adjust current; and the temperature control module is coupled with a temperature setting resistor network so as to select and set temperature. The driving circuit has the advantages that the system has small power consumption, low cost and strong function, the test requirement can be completely met; the driving current of the super radiation light-emitting diode light source can be changed through the resistance adjustment; with the installment of both 10K and 15K resistor networks, the required work temperature of the super radiation light-emitting diode can be set through the resistor change by a switch, therefore, the driving circuit can be used for the optical fiber gyroscope.
Description
Technical field
The utility model relates to the LED driving circuit field, and a kind of super-radiance light emitting diode drive circuit with temp regulating function of specific design is adapted at using in super-radiance light emitting diode (SLD) driving.
Background technology
Fibre optic gyroscope is a kind of angular rate sensor, is widely used in the inertial navigation field, is the main sensors that is used for determining movable body spatial movement attitude at present, and super-radiance light emitting diode (SLD) is the Primary Component of fibre optic gyroscope.Because optic fiber gyroscope operational environment very severe, harshness, operational environment for the simulation gyro, each super-radiance light emitting diode (SLD) as key component all must be tested under extremely harsh experimental enviroment, all need to carry out-40 ℃ to 60 ℃ high low temperature cycle performance tests, present general driving method, could test by high low temperature cycle performance after the test stage in early stage has only super-radiance light emitting diode (SLD) and fibre optic gyroscope light source driving circuit welding uniting and adjustment, its driver circuit schematic diagram as shown in Figure 1.Present general driving method, every unjacketed optical fiber gyroscope drive circuit all adopts fixing consistent electronic device, it is constant to be easy to generate SLD refrigerator design temperature, problems such as driving current constant, constant refrigerator temperature causes relative consistent source device output optical power with drive current, 25 ℃ of work of domestic super-radiance light emitting diode (SLD) Output optical power are generally about 500uW, because the needed optical power intensity of fibre optic gyroscope of various models is inconsistent, Output optical power requires in this interval of 300uW to 700uW, improve super-radiance light emitting diode (SLD) Output optical power so often need be reduced to 15 ℃ to SLD working temperature point, thereby guarantee to satisfy the instructions for use of various model fibre optic gyroscopes, the electronic device that general driving method often need be changed the fibre optic gyroscope light source driving circuit reaches this requirement, causes product also often need do over again and reprocesses; The underproof SLD behind high low temperature loop test that welded of pin can't return goods in addition, and the SLD price is higher, causes unnecessary loss easily, and these all are the unfavorable factors in the industrialization production process.
Summary of the invention
The purpose of this utility model is according to above-mentioned the deficiencies in the prior art part, a kind of super-radiance light emitting diode drive circuit with temp regulating function is provided, this circuit structure is: constant-current driven module is selected ADN2830 for use, temperature control modules is selected ADN8830 for use, adopt fixedly SLD light source of butterfly anchor clamps, every functional requirement according to the proposition of super-radiance light emitting diode (SLD) driving method, take all factors into consideration power consumption and refrigeration, design possesses the adjustable and light source refrigerator design temperature of drive current can realize the circuit of 15 ℃ and 25 ℃ free handoff functionalities, thereby reaches every testing performance index function of super-radiance light emitting diode (SLD) requirement.
The utility model purpose realizes being finished by following technical scheme:
A kind of super-radiance light emitting diode drive circuit with temp regulating function, be used for the performance test of super-radiance light emitting diode, include respectively the constant-current driven module, temperature control modules and the luminous power acquisition system that are coupled with described super-radiance light emitting diode, described luminous power acquisition system establishes with a computer and is connected, it is characterized in that: described constant-current driven module is coupled with current settings and regulates resistance to carry out Current Regulation, and described temperature control modules is coupled with the temperature setting resistor network and selects to set to carry out temperature.
Described constant-current driven module, temperature control modules and described super-radiance light emitting diode are coupled by butterfly anchor clamps.
Described constant-current driven module is ADN2830.
Described current settings is regulated resistance and is linked with a potentiometer.
Described temperature control modules is ADN8830.
Described temperature control modules is ADN8830, and described temperature setting resistor network includes 10K Ω and two kinds of resistor networks of 15K Ω.
The utility model has the advantages that system power dissipation is little, cost is low, function is strong, can satisfy test request fully; In the constant-current driven module design; can change super-radiance light emitting diode light source drive current size by Rd resistance in regulating shown in the figure three very easily; can realize super-radiance light emitting diode light source drive current adjustable function after installing high-accuracy rotational potentiometer additional; also installed the current limitation protective resistance in addition additional; maximum current limit can more conveniently be carried out work reliably in 112mA.Super-radiance light emitting diode light source drive current: electric current is adjustable in full temperature 50mA ~ 110mA scope, and starting up current stability＜0.5mA can reach 0.1mA after stablizing, and reaches the super-radiance light emitting diode light source and drives the instructions for use of instrument constant-current driving.In the temperature control modules design, R2, R3, R4 install 10K and two kinds of resistor networks of 15K additional, 10K is 25 ℃ and sets required resistor network, 15K is 15 ℃ and sets required resistor network, thereby the resistance by R2, R3, R4 on the resistance bridge during the switch convert resistance is easily shown in the change figure four reaches the working temperature that the setting super-radiance light emitting diode needs, reach 15 ℃ and 25 ℃ of functions of freely switching, satisfy fibre optic gyroscope and use.
Description of drawings
Fig. 1 is existing super-radiance light emitting diode (SLD) driving circuit structure schematic diagram;
Fig. 2 is super-radiance light emitting diode of the present utility model (SLD) driving circuit structure schematic diagram;
Fig. 3 is a super-radiance light emitting diode light source constant-current driven module circuit diagram;
Fig. 4 is a super-radiance light emitting diode light-source temperature control module circuit diagram;
Fig. 5 is the normal temperature luminous power test data figure that 15 ℃ of temperature of the present utility model are set driving method;
Fig. 6 is the normal temperature luminous power test data figure that 25 ℃ of temperature of the present utility model are set driving method;
Fig. 7 is the high low temperature luminous power test data figure that 15 ℃ of temperature of the present utility model are set driving method;
Fig. 8 is the high low temperature luminous power test data figure that 25 ℃ of temperature of the present utility model are set driving method.
Embodiment
The utility model feature and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that technical staff's of the same trade understanding:
Shown in Fig. 1-8, label 1-9 represents respectively: constant-current driven module 1, temperature control modules 2, super-radiance light emitting diode 3, luminous power acquisition system 4, computer 5, pad 6, current settings are regulated resistance 7, temperature setting resistor network 8, butterfly anchor clamps 9.
Referring to accompanying drawing 2, driving circuit structure is as follows in the utility model:
Constant-current driven module 1, temperature control modules 2 and luminous power acquisition system 4 all are coupled with super-radiance light emitting diode 3, luminous power acquisition system 4 establishes with a computer 5 and is connected, constant-current driven module 1 is coupled with current settings and regulates resistance 7 to carry out Current Regulation, and described temperature control modules 1 is coupled with temperature setting resistor network 8 and selects to set to carry out temperature.At first provide super-radiance light emitting diode 3 stable operating current during work by constant-current driven module 1, make the stable luminous power of its output, temperature control modules 2 is used to regulate super-radiance light emitting diode 3 work or exterior temperature change and the temperature drift that causes, under-40 ℃ to 60 ℃ working conditions of its full temperature temperature control modules 2 accuracy of temperature control can reach ± 0.01 ℃, super-radiance light emitting diode 3 luminous powers that variations in temperature is caused and the influence of wavelength are reduced to minimum, this temperature control modules refrigerating efficiency is very high, can reach power consumption less than the 3W requirement, butterfly anchor clamps 9 major functions are to guarantee constant-current driven module 1, temperature control modules 2 and super-radiance light emitting diode 3 need not pin welding and just can be connected to an integral body and carry out reliably working.
The concrete method of testing of the drive circuit that present embodiment adopts is: at first regulate 7 pairs of constant-current driven modules of resistance 1 by current settings and carry out Current Regulation, carrying out temperature by 8 pairs of temperature control modules of temperature setting resistor network 2 selects to set, carry out the control of constant-current driving and adjustment respectively by 9 pairs of super-radiance light emitting diodes 3 of butterfly anchor clamps, carry out the luminous power collection by 4 pairs of super-radiance light emitting diodes of luminous power acquisition system 3, by luminous power acquisition system 4 data are put in order the back at last and send computer 5 to, so just finished the whole data collection process by USB or data transfer mode commonly used such as RS232 or RS485.
Present embodiment drive circuit performance test and detection case are as follows:
The santec PEM of company luminous power acquisition system PEM-320 is used in test, and temperature control box is the KTSB-510T-HS of KSON company, and test makes uses up fast super-radiance light emitting diode (SLD), light source numbering 3632186.
In order more to clearly illustrate the performance of present embodiment driving method, we select for use GuangXun Co., Ltd's super-radiance light emitting diode (SLD) to carry out every performance test, as Fig. 5 is the normal temperature luminous power test data figure that 15 ℃ of temperature are set driving method, drive current adjustment is to 100mA, transverse axis is the number of data, the longitudinal axis is a data value, Range of measuring temp from+20 ℃ to-40 ℃ to+60 ℃ again to+20 ℃, red curve is a temperature curve in the KSON company temperature control box, blue curve is super-radiance light emitting diode (SLD) luminous power curve, SLD light source fiber power 650uW, optical power change 1.5uW, stability is 0.23%.Fig. 6 is the normal temperature luminous power test data figure that 25 ℃ of temperature are set driving methods, and drive current adjustment is to 100mA, SLD light source fiber power 420uW, and optical power change 2uW, stability is 0.47%.Fig. 7 is the high low temperature luminous power test data figure that 15 ℃ of temperature are set driving methods, and drive current adjustment is to 100mA, the full temperature optical power stability of 15 ℃ of temperature controls of SLD light source, and fiber power 640uW, the full temperature of luminous power changes 7.5uW, and stability is 1.2%.Fig. 8 is the high low temperature luminous power test data figure that 25 ℃ of temperature are set driving methods, and drive current adjustment is to 110mA, the full temperature optical power stability of 25 ℃ of temperature controls of SLD light source, and fiber power 640uW, the full temperature of luminous power changes 4.5uW, and stability is 0.7%.By above every performance test that the fast super-radiance light emitting diode of light (SLD) is carried out, all satisfy the fibre optic gyroscope instructions for use, prove that present embodiment super-radiance light emitting diode (SLD) driving method is reliable and accurate.
Present embodiment relates to super-radiance light emitting diode (SLD) drive circuit can provide fairly perfect, comprehensive, accurate test for SLD light source parameter index in early stage detects, the SLD drive current is adjustable and 15 ℃ and 25 ℃ of refrigerator temperature freely are provided with function and have solved SLD eaily and detect problems such as loaded down with trivial details, saved a large amount of detection times, be adapted at using in the industrialization production test.
Claims (6)
1. super-radiance light emitting diode drive circuit with temp regulating function, be used for the performance test of super-radiance light emitting diode, include respectively the constant-current driven module, temperature control modules and the luminous power acquisition system that are coupled with described super-radiance light emitting diode, described luminous power acquisition system establishes with a computer and is connected, it is characterized in that: described constant-current driven module is coupled with current settings and regulates resistance to carry out Current Regulation, and described temperature control modules is coupled with the temperature setting resistor network and selects to set to carry out temperature.
2. a kind of super-radiance light emitting diode drive circuit with temp regulating function according to claim 1, it is characterized in that: described constant-current driven module, temperature control modules and described super-radiance light emitting diode are coupled by butterfly anchor clamps.
3. a kind of super-radiance light emitting diode drive circuit with temp regulating function according to claim 1, it is characterized in that: described constant-current driven module is ADN2830.
4. a kind of super-radiance light emitting diode drive circuit with temp regulating function according to claim 1 is characterized in that: described current settings is regulated resistance and is linked with a potentiometer.
5. a kind of super-radiance light emitting diode drive circuit with temp regulating function according to claim 1, it is characterized in that: described temperature control modules is ADN8830.
6. a kind of super-radiance light emitting diode drive circuit according to claim 1 with temp regulating function, it is characterized in that: described temperature control modules is ADN8830, described temperature setting resistor network includes 10K Ω and two kinds of resistor networks of 15K Ω.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010206861209U CN201967200U (en) | 2010-12-29 | 2010-12-29 | Super radiation light-emitting diode driving circuit with temperature adjusting function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010206861209U CN201967200U (en) | 2010-12-29 | 2010-12-29 | Super radiation light-emitting diode driving circuit with temperature adjusting function |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707748A (en) * | 2011-09-24 | 2012-10-03 | 无锡科晟光子科技有限公司 | Automatic temperature control method of quick response type super luminescent diode (SLD) and automatic temperature control driving device of quick response type SLD |
| CN103208738A (en) * | 2013-04-18 | 2013-07-17 | 北京航天易联科技发展有限公司 | Semiconductor laser device driving device |
| CN104319622A (en) * | 2014-11-19 | 2015-01-28 | 天津光电通信技术有限公司 | Small driving circuit of continuous light output laser device |
| CN107543537A (en) * | 2017-07-10 | 2018-01-05 | 北京控制工程研究所 | A kind of method for improving optic fiber gyroscope graduation factor stability |
| CN109412004A (en) * | 2018-12-07 | 2019-03-01 | 贵州航天控制技术有限公司 | A kind of Gaussian ASE light source |
| CN110132265A (en) * | 2019-05-09 | 2019-08-16 | 罕王微电子（辽宁）有限公司 | A kind of temperature adjusting inertial sensor |
| 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 |
-
2010
- 2010-12-29 CN CN2010206861209U patent/CN201967200U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102707748A (en) * | 2011-09-24 | 2012-10-03 | 无锡科晟光子科技有限公司 | Automatic temperature control method of quick response type super luminescent diode (SLD) and automatic temperature control driving device of quick response type SLD |
| CN102707748B (en) * | 2011-09-24 | 2014-04-09 | 无锡科晟光子科技有限公司 | Automatic temperature control method of quick response type super luminescent diode (SLD) and driving device of quick response type SLD |
| CN103208738A (en) * | 2013-04-18 | 2013-07-17 | 北京航天易联科技发展有限公司 | Semiconductor laser device driving device |
| CN104319622A (en) * | 2014-11-19 | 2015-01-28 | 天津光电通信技术有限公司 | Small driving circuit of continuous light output laser device |
| CN107543537A (en) * | 2017-07-10 | 2018-01-05 | 北京控制工程研究所 | A kind of method for improving optic fiber gyroscope graduation factor stability |
| CN109412004A (en) * | 2018-12-07 | 2019-03-01 | 贵州航天控制技术有限公司 | A kind of Gaussian ASE light source |
| CN110132265A (en) * | 2019-05-09 | 2019-08-16 | 罕王微电子（辽宁）有限公司 | A kind of temperature adjusting inertial sensor |
| 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 |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |